/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 06:26:03,037 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 06:26:03,081 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 06:26:03,090 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 06:26:03,090 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 06:26:03,129 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 06:26:03,130 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 06:26:03,130 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 06:26:03,131 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 06:26:03,133 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 06:26:03,134 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 06:26:03,134 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 06:26:03,134 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 06:26:03,135 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 06:26:03,136 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 06:26:03,136 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 06:26:03,136 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 06:26:03,136 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 06:26:03,137 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 06:26:03,137 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 06:26:03,137 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 06:26:03,138 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 06:26:03,138 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 06:26:03,138 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 06:26:03,138 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 06:26:03,138 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 06:26:03,138 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 06:26:03,138 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 06:26:03,139 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 06:26:03,139 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 06:26:03,140 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 06:26:03,140 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 06:26:03,140 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 06:26:03,140 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 06:26:03,140 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 06:26:03,140 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 06:26:03,140 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 06:26:03,141 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 06:26:03,141 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 06:26:03,141 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 06:26:03,141 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 06:26:03,141 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 06:26:03,141 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 06:26:03,141 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 06:26:03,340 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 06:26:03,368 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 06:26:03,369 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 06:26:03,370 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 06:26:03,370 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 06:26:03,371 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2023-12-16 06:26:04,435 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 06:26:04,625 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 06:26:04,625 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2023-12-16 06:26:04,639 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07c845efa/7a1d11ba939245ba8de0c8f900ccc28a/FLAG27a5a1c5a [2023-12-16 06:26:04,648 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07c845efa/7a1d11ba939245ba8de0c8f900ccc28a [2023-12-16 06:26:04,650 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 06:26:04,650 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 06:26:04,651 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 06:26:04,651 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 06:26:04,661 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 06:26:04,662 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 06:26:04" (1/1) ... [2023-12-16 06:26:04,662 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30211b9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:26:04, skipping insertion in model container [2023-12-16 06:26:04,662 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 06:26:04" (1/1) ... [2023-12-16 06:26:04,728 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 06:26:04,929 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.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[9421,9434] [2023-12-16 06:26:04,949 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.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[12913,12926] [2023-12-16 06:26:04,954 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.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[14069,14082] [2023-12-16 06:26:04,958 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.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[14725,14738] [2023-12-16 06:26:04,963 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.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[16246,16259] [2023-12-16 06:26:04,967 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.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[16902,16915] [2023-12-16 06:26:04,971 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.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[17886,17899] [2023-12-16 06:26:04,979 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.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[20224,20237] [2023-12-16 06:26:04,983 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.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[20883,20896] [2023-12-16 06:26:04,987 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.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[21907,21920] [2023-12-16 06:26:04,993 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.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[23782,23795] [2023-12-16 06:26:05,049 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 06:26:05,073 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 06:26:05,110 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.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[9421,9434] [2023-12-16 06:26:05,117 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.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[12913,12926] [2023-12-16 06:26:05,121 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.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[14069,14082] [2023-12-16 06:26:05,123 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.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[14725,14738] [2023-12-16 06:26:05,127 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.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[16246,16259] [2023-12-16 06:26:05,129 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.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[16902,16915] [2023-12-16 06:26:05,132 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[17886,17899] [2023-12-16 06:26:05,138 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.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[20224,20237] [2023-12-16 06:26:05,140 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[20883,20896] [2023-12-16 06:26:05,143 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.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[21907,21920] [2023-12-16 06:26:05,148 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.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[23782,23795] [2023-12-16 06:26:05,193 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 06:26:05,212 INFO L206 MainTranslator]: Completed translation [2023-12-16 06:26:05,212 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:26:05 WrapperNode [2023-12-16 06:26:05,213 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 06:26:05,214 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 06:26:05,214 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 06:26:05,214 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 06:26:05,219 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:26:05" (1/1) ... [2023-12-16 06:26:05,234 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:26:05" (1/1) ... [2023-12-16 06:26:05,286 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2018 [2023-12-16 06:26:05,286 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 06:26:05,287 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 06:26:05,287 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 06:26:05,287 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 06:26:05,306 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:26:05" (1/1) ... [2023-12-16 06:26:05,306 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:26:05" (1/1) ... [2023-12-16 06:26:05,311 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:26:05" (1/1) ... [2023-12-16 06:26:05,347 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]. [2023-12-16 06:26:05,347 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:26:05" (1/1) ... [2023-12-16 06:26:05,348 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:26:05" (1/1) ... [2023-12-16 06:26:05,374 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:26:05" (1/1) ... [2023-12-16 06:26:05,396 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:26:05" (1/1) ... [2023-12-16 06:26:05,428 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:26:05" (1/1) ... [2023-12-16 06:26:05,433 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:26:05" (1/1) ... [2023-12-16 06:26:05,453 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 06:26:05,454 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 06:26:05,454 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 06:26:05,454 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 06:26:05,455 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:26:05" (1/1) ... [2023-12-16 06:26:05,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 06:26:05,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 06:26:05,494 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) [2023-12-16 06:26:05,515 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 [2023-12-16 06:26:05,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 06:26:05,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 06:26:05,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 06:26:05,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 06:26:05,667 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 06:26:05,669 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 06:26:06,504 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 06:26:06,571 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 06:26:06,571 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-16 06:26:06,572 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 06:26:06 BoogieIcfgContainer [2023-12-16 06:26:06,572 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 06:26:06,573 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 06:26:06,573 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 06:26:06,575 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 06:26:06,575 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 06:26:04" (1/3) ... [2023-12-16 06:26:06,576 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@296c7905 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 06:26:06, skipping insertion in model container [2023-12-16 06:26:06,576 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:26:05" (2/3) ... [2023-12-16 06:26:06,576 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@296c7905 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 06:26:06, skipping insertion in model container [2023-12-16 06:26:06,576 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 06:26:06" (3/3) ... [2023-12-16 06:26:06,577 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2023-12-16 06:26:06,588 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 06:26:06,588 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2023-12-16 06:26:06,623 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 06:26:06,627 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;@8282a67, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 06:26:06,627 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-12-16 06:26:06,632 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) [2023-12-16 06:26:06,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-16 06:26:06,640 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:06,640 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] [2023-12-16 06:26:06,641 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)] === [2023-12-16 06:26:06,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:06,644 INFO L85 PathProgramCache]: Analyzing trace with hash -972469851, now seen corresponding path program 1 times [2023-12-16 06:26:06,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:06,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845527188] [2023-12-16 06:26:06,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:06,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:06,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:06,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:06,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:06,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845527188] [2023-12-16 06:26:06,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845527188] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:06,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:06,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 06:26:06,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360717085] [2023-12-16 06:26:06,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:06,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 06:26:06,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:07,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 06:26:07,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 06:26:07,016 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) [2023-12-16 06:26:07,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:07,227 INFO L93 Difference]: Finished difference Result 565 states and 969 transitions. [2023-12-16 06:26:07,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 06:26:07,229 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 [2023-12-16 06:26:07,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:07,236 INFO L225 Difference]: With dead ends: 565 [2023-12-16 06:26:07,236 INFO L226 Difference]: Without dead ends: 302 [2023-12-16 06:26:07,239 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 [2023-12-16 06:26:07,241 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 [2023-12-16 06:26:07,242 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] [2023-12-16 06:26:07,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2023-12-16 06:26:07,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 302. [2023-12-16 06:26:07,271 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) [2023-12-16 06:26:07,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 375 transitions. [2023-12-16 06:26:07,272 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 375 transitions. Word has length 58 [2023-12-16 06:26:07,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:07,273 INFO L495 AbstractCegarLoop]: Abstraction has 302 states and 375 transitions. [2023-12-16 06:26:07,273 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) [2023-12-16 06:26:07,273 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 375 transitions. [2023-12-16 06:26:07,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-16 06:26:07,275 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:07,275 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] [2023-12-16 06:26:07,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 06:26:07,275 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)] === [2023-12-16 06:26:07,276 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:07,276 INFO L85 PathProgramCache]: Analyzing trace with hash 2110592992, now seen corresponding path program 1 times [2023-12-16 06:26:07,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:07,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398982083] [2023-12-16 06:26:07,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:07,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:07,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:07,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:07,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:07,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398982083] [2023-12-16 06:26:07,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398982083] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:07,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:07,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 06:26:07,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493218355] [2023-12-16 06:26:07,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:07,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 06:26:07,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:07,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 06:26:07,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 06:26:07,374 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) [2023-12-16 06:26:07,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:07,555 INFO L93 Difference]: Finished difference Result 505 states and 644 transitions. [2023-12-16 06:26:07,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 06:26:07,555 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 [2023-12-16 06:26:07,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:07,557 INFO L225 Difference]: With dead ends: 505 [2023-12-16 06:26:07,557 INFO L226 Difference]: Without dead ends: 282 [2023-12-16 06:26:07,557 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 [2023-12-16 06:26:07,558 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 977 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 977 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 06:26:07,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [977 Valid, 211 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 06:26:07,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2023-12-16 06:26:07,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2023-12-16 06:26:07,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 271 states have (on average 1.2915129151291513) internal successors, (350), 281 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:07,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 350 transitions. [2023-12-16 06:26:07,566 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 350 transitions. Word has length 59 [2023-12-16 06:26:07,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:07,566 INFO L495 AbstractCegarLoop]: Abstraction has 282 states and 350 transitions. [2023-12-16 06:26:07,566 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) [2023-12-16 06:26:07,566 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 350 transitions. [2023-12-16 06:26:07,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-16 06:26:07,568 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:07,568 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] [2023-12-16 06:26:07,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 06:26:07,568 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)] === [2023-12-16 06:26:07,569 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:07,569 INFO L85 PathProgramCache]: Analyzing trace with hash -287578716, now seen corresponding path program 1 times [2023-12-16 06:26:07,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:07,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444728692] [2023-12-16 06:26:07,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:07,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:07,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:07,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:07,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:07,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444728692] [2023-12-16 06:26:07,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444728692] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:07,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:07,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 06:26:07,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428461624] [2023-12-16 06:26:07,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:07,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 06:26:07,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:07,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 06:26:07,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 06:26:07,645 INFO L87 Difference]: Start difference. First operand 282 states and 350 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) [2023-12-16 06:26:07,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:07,778 INFO L93 Difference]: Finished difference Result 485 states and 618 transitions. [2023-12-16 06:26:07,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 06:26:07,778 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 [2023-12-16 06:26:07,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:07,779 INFO L225 Difference]: With dead ends: 485 [2023-12-16 06:26:07,779 INFO L226 Difference]: Without dead ends: 260 [2023-12-16 06:26:07,780 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 [2023-12-16 06:26:07,781 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 929 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 929 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:26:07,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [929 Valid, 199 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:26:07,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2023-12-16 06:26:07,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 260. [2023-12-16 06:26:07,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 249 states have (on average 1.3052208835341366) internal successors, (325), 259 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:07,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 325 transitions. [2023-12-16 06:26:07,786 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 325 transitions. Word has length 60 [2023-12-16 06:26:07,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:07,787 INFO L495 AbstractCegarLoop]: Abstraction has 260 states and 325 transitions. [2023-12-16 06:26:07,787 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) [2023-12-16 06:26:07,787 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 325 transitions. [2023-12-16 06:26:07,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-16 06:26:07,788 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:07,788 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] [2023-12-16 06:26:07,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-16 06:26:07,788 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)] === [2023-12-16 06:26:07,789 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:07,789 INFO L85 PathProgramCache]: Analyzing trace with hash -686799403, now seen corresponding path program 1 times [2023-12-16 06:26:07,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:07,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699029228] [2023-12-16 06:26:07,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:07,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:07,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:07,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:07,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:07,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699029228] [2023-12-16 06:26:07,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699029228] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:07,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:07,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 06:26:07,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099276517] [2023-12-16 06:26:07,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:07,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 06:26:07,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:07,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 06:26:07,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 06:26:07,875 INFO L87 Difference]: Start difference. First operand 260 states and 325 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) [2023-12-16 06:26:08,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:08,066 INFO L93 Difference]: Finished difference Result 597 states and 768 transitions. [2023-12-16 06:26:08,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 06:26:08,067 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 [2023-12-16 06:26:08,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:08,068 INFO L225 Difference]: With dead ends: 597 [2023-12-16 06:26:08,068 INFO L226 Difference]: Without dead ends: 380 [2023-12-16 06:26:08,069 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 [2023-12-16 06:26:08,069 INFO L413 NwaCegarLoop]: 182 mSDtfsCounter, 1242 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1242 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 06:26:08,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1242 Valid, 292 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 06:26:08,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2023-12-16 06:26:08,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 338. [2023-12-16 06:26:08,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 327 states have (on average 1.3669724770642202) internal successors, (447), 337 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:08,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 447 transitions. [2023-12-16 06:26:08,076 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 447 transitions. Word has length 61 [2023-12-16 06:26:08,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:08,076 INFO L495 AbstractCegarLoop]: Abstraction has 338 states and 447 transitions. [2023-12-16 06:26:08,076 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) [2023-12-16 06:26:08,076 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 447 transitions. [2023-12-16 06:26:08,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-16 06:26:08,077 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:08,077 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] [2023-12-16 06:26:08,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-16 06:26:08,077 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)] === [2023-12-16 06:26:08,078 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:08,078 INFO L85 PathProgramCache]: Analyzing trace with hash -617130845, now seen corresponding path program 1 times [2023-12-16 06:26:08,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:08,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928283153] [2023-12-16 06:26:08,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:08,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:08,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:08,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:08,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:08,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928283153] [2023-12-16 06:26:08,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928283153] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:08,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:08,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-16 06:26:08,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949423207] [2023-12-16 06:26:08,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:08,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-16 06:26:08,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:08,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-16 06:26:08,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-12-16 06:26:08,367 INFO L87 Difference]: Start difference. First operand 338 states and 447 transitions. Second operand has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 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) [2023-12-16 06:26:09,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:09,126 INFO L93 Difference]: Finished difference Result 886 states and 1217 transitions. [2023-12-16 06:26:09,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-16 06:26:09,127 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 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 [2023-12-16 06:26:09,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:09,129 INFO L225 Difference]: With dead ends: 886 [2023-12-16 06:26:09,129 INFO L226 Difference]: Without dead ends: 775 [2023-12-16 06:26:09,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=488, Unknown=0, NotChecked=0, Total=650 [2023-12-16 06:26:09,130 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 1511 mSDsluCounter, 1231 mSDsCounter, 0 mSdLazyCounter, 1203 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1511 SdHoareTripleChecker+Valid, 1443 SdHoareTripleChecker+Invalid, 1210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 06:26:09,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1511 Valid, 1443 Invalid, 1210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1203 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 06:26:09,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 775 states. [2023-12-16 06:26:09,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 775 to 345. [2023-12-16 06:26:09,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 334 states have (on average 1.3682634730538923) internal successors, (457), 344 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:09,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 457 transitions. [2023-12-16 06:26:09,159 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 457 transitions. Word has length 62 [2023-12-16 06:26:09,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:09,160 INFO L495 AbstractCegarLoop]: Abstraction has 345 states and 457 transitions. [2023-12-16 06:26:09,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 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) [2023-12-16 06:26:09,160 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 457 transitions. [2023-12-16 06:26:09,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-16 06:26:09,161 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:09,161 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] [2023-12-16 06:26:09,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-16 06:26:09,161 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-16 06:26:09,161 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:09,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1295066257, now seen corresponding path program 1 times [2023-12-16 06:26:09,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:09,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20271487] [2023-12-16 06:26:09,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:09,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:09,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:09,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:09,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:09,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20271487] [2023-12-16 06:26:09,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20271487] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:09,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:09,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-16 06:26:09,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701001662] [2023-12-16 06:26:09,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:09,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-16 06:26:09,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:09,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-16 06:26:09,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-12-16 06:26:09,385 INFO L87 Difference]: Start difference. First operand 345 states and 457 transitions. Second operand has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 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) [2023-12-16 06:26:09,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:09,929 INFO L93 Difference]: Finished difference Result 941 states and 1292 transitions. [2023-12-16 06:26:09,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-16 06:26:09,929 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 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 [2023-12-16 06:26:09,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:09,931 INFO L225 Difference]: With dead ends: 941 [2023-12-16 06:26:09,931 INFO L226 Difference]: Without dead ends: 818 [2023-12-16 06:26:09,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=151, Invalid=449, Unknown=0, NotChecked=0, Total=600 [2023-12-16 06:26:09,934 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 1674 mSDsluCounter, 1064 mSDsCounter, 0 mSdLazyCounter, 999 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1674 SdHoareTripleChecker+Valid, 1283 SdHoareTripleChecker+Invalid, 1010 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 999 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 06:26:09,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1674 Valid, 1283 Invalid, 1010 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 999 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 06:26:09,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2023-12-16 06:26:09,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 345. [2023-12-16 06:26:09,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 334 states have (on average 1.3652694610778444) internal successors, (456), 344 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:09,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 456 transitions. [2023-12-16 06:26:09,945 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 456 transitions. Word has length 62 [2023-12-16 06:26:09,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:09,945 INFO L495 AbstractCegarLoop]: Abstraction has 345 states and 456 transitions. [2023-12-16 06:26:09,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 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) [2023-12-16 06:26:09,946 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 456 transitions. [2023-12-16 06:26:09,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-16 06:26:09,946 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:09,946 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] [2023-12-16 06:26:09,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-16 06:26:09,947 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-16 06:26:09,947 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:09,947 INFO L85 PathProgramCache]: Analyzing trace with hash -1025976073, now seen corresponding path program 1 times [2023-12-16 06:26:09,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:09,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106785271] [2023-12-16 06:26:09,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:09,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:09,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:10,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:10,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:10,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106785271] [2023-12-16 06:26:10,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106785271] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:10,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:10,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 06:26:10,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220375340] [2023-12-16 06:26:10,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:10,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 06:26:10,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:10,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 06:26:10,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-16 06:26:10,151 INFO L87 Difference]: Start difference. First operand 345 states and 456 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) [2023-12-16 06:26:10,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:10,551 INFO L93 Difference]: Finished difference Result 757 states and 1033 transitions. [2023-12-16 06:26:10,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 06:26:10,551 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 [2023-12-16 06:26:10,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:10,554 INFO L225 Difference]: With dead ends: 757 [2023-12-16 06:26:10,554 INFO L226 Difference]: Without dead ends: 752 [2023-12-16 06:26:10,554 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-16 06:26:10,555 INFO L413 NwaCegarLoop]: 232 mSDtfsCounter, 1418 mSDsluCounter, 733 mSDsCounter, 0 mSdLazyCounter, 725 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1418 SdHoareTripleChecker+Valid, 965 SdHoareTripleChecker+Invalid, 729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 06:26:10,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1418 Valid, 965 Invalid, 729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 725 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 06:26:10,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 752 states. [2023-12-16 06:26:10,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 752 to 345. [2023-12-16 06:26:10,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 334 states have (on average 1.3622754491017963) internal successors, (455), 344 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:10,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 455 transitions. [2023-12-16 06:26:10,561 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 455 transitions. Word has length 62 [2023-12-16 06:26:10,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:10,561 INFO L495 AbstractCegarLoop]: Abstraction has 345 states and 455 transitions. [2023-12-16 06:26:10,561 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) [2023-12-16 06:26:10,562 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 455 transitions. [2023-12-16 06:26:10,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-16 06:26:10,562 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:10,562 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] [2023-12-16 06:26:10,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-16 06:26:10,563 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-16 06:26:10,563 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:10,563 INFO L85 PathProgramCache]: Analyzing trace with hash 762232665, now seen corresponding path program 1 times [2023-12-16 06:26:10,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:10,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45134190] [2023-12-16 06:26:10,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:10,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:10,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:10,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:10,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:10,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45134190] [2023-12-16 06:26:10,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45134190] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:10,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:10,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 06:26:10,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569829059] [2023-12-16 06:26:10,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:10,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 06:26:10,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:10,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 06:26:10,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 06:26:10,748 INFO L87 Difference]: Start difference. First operand 345 states and 455 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) [2023-12-16 06:26:11,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:11,051 INFO L93 Difference]: Finished difference Result 695 states and 920 transitions. [2023-12-16 06:26:11,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 06:26:11,052 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 [2023-12-16 06:26:11,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:11,054 INFO L225 Difference]: With dead ends: 695 [2023-12-16 06:26:11,054 INFO L226 Difference]: Without dead ends: 510 [2023-12-16 06:26:11,054 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 [2023-12-16 06:26:11,055 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 1225 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1225 SdHoareTripleChecker+Valid, 633 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 06:26:11,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1225 Valid, 633 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 06:26:11,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2023-12-16 06:26:11,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 345. [2023-12-16 06:26:11,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 334 states have (on average 1.3592814371257484) internal successors, (454), 344 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:11,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 454 transitions. [2023-12-16 06:26:11,059 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 454 transitions. Word has length 62 [2023-12-16 06:26:11,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:11,060 INFO L495 AbstractCegarLoop]: Abstraction has 345 states and 454 transitions. [2023-12-16 06:26:11,060 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) [2023-12-16 06:26:11,060 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 454 transitions. [2023-12-16 06:26:11,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-16 06:26:11,060 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:11,060 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] [2023-12-16 06:26:11,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-16 06:26:11,061 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)] === [2023-12-16 06:26:11,061 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:11,061 INFO L85 PathProgramCache]: Analyzing trace with hash 2079212864, now seen corresponding path program 1 times [2023-12-16 06:26:11,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:11,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317141118] [2023-12-16 06:26:11,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:11,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:11,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:11,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:11,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:11,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317141118] [2023-12-16 06:26:11,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317141118] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:11,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:11,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 06:26:11,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443617806] [2023-12-16 06:26:11,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:11,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 06:26:11,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:11,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 06:26:11,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-16 06:26:11,219 INFO L87 Difference]: Start difference. First operand 345 states and 454 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) [2023-12-16 06:26:11,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:11,603 INFO L93 Difference]: Finished difference Result 645 states and 887 transitions. [2023-12-16 06:26:11,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 06:26:11,603 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 [2023-12-16 06:26:11,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:11,605 INFO L225 Difference]: With dead ends: 645 [2023-12-16 06:26:11,605 INFO L226 Difference]: Without dead ends: 505 [2023-12-16 06:26:11,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2023-12-16 06:26:11,606 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 1235 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 571 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1235 SdHoareTripleChecker+Valid, 777 SdHoareTripleChecker+Invalid, 575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 06:26:11,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1235 Valid, 777 Invalid, 575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 571 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 06:26:11,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2023-12-16 06:26:11,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 338. [2023-12-16 06:26:11,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 327 states have (on average 1.3577981651376148) internal successors, (444), 337 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:11,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 444 transitions. [2023-12-16 06:26:11,611 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 444 transitions. Word has length 64 [2023-12-16 06:26:11,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:11,611 INFO L495 AbstractCegarLoop]: Abstraction has 338 states and 444 transitions. [2023-12-16 06:26:11,612 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) [2023-12-16 06:26:11,612 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 444 transitions. [2023-12-16 06:26:11,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-16 06:26:11,612 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:11,612 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] [2023-12-16 06:26:11,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-16 06:26:11,612 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-16 06:26:11,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:11,613 INFO L85 PathProgramCache]: Analyzing trace with hash 350648810, now seen corresponding path program 1 times [2023-12-16 06:26:11,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:11,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014709820] [2023-12-16 06:26:11,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:11,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:11,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:11,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:11,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:11,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014709820] [2023-12-16 06:26:11,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014709820] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:11,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:11,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 06:26:11,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604557057] [2023-12-16 06:26:11,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:11,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 06:26:11,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:11,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 06:26:11,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-16 06:26:11,818 INFO L87 Difference]: Start difference. First operand 338 states and 444 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) [2023-12-16 06:26:12,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:12,299 INFO L93 Difference]: Finished difference Result 856 states and 1179 transitions. [2023-12-16 06:26:12,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 06:26:12,300 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 [2023-12-16 06:26:12,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:12,302 INFO L225 Difference]: With dead ends: 856 [2023-12-16 06:26:12,302 INFO L226 Difference]: Without dead ends: 745 [2023-12-16 06:26:12,302 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 [2023-12-16 06:26:12,303 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 1119 mSDsluCounter, 992 mSDsCounter, 0 mSdLazyCounter, 877 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1119 SdHoareTripleChecker+Valid, 1211 SdHoareTripleChecker+Invalid, 881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 877 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 06:26:12,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1119 Valid, 1211 Invalid, 881 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 877 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 06:26:12,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2023-12-16 06:26:12,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 338. [2023-12-16 06:26:12,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 327 states have (on average 1.3547400611620795) internal successors, (443), 337 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:12,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 443 transitions. [2023-12-16 06:26:12,309 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 443 transitions. Word has length 64 [2023-12-16 06:26:12,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:12,309 INFO L495 AbstractCegarLoop]: Abstraction has 338 states and 443 transitions. [2023-12-16 06:26:12,309 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) [2023-12-16 06:26:12,309 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 443 transitions. [2023-12-16 06:26:12,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-16 06:26:12,310 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:12,310 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] [2023-12-16 06:26:12,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-16 06:26:12,310 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-16 06:26:12,310 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:12,310 INFO L85 PathProgramCache]: Analyzing trace with hash -2032121384, now seen corresponding path program 1 times [2023-12-16 06:26:12,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:12,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142677316] [2023-12-16 06:26:12,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:12,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:12,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:12,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:12,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:12,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142677316] [2023-12-16 06:26:12,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142677316] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:12,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:12,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 06:26:12,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653343816] [2023-12-16 06:26:12,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:12,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 06:26:12,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:12,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 06:26:12,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-16 06:26:12,468 INFO L87 Difference]: Start difference. First operand 338 states and 443 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) [2023-12-16 06:26:12,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:12,912 INFO L93 Difference]: Finished difference Result 888 states and 1227 transitions. [2023-12-16 06:26:12,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 06:26:12,912 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 [2023-12-16 06:26:12,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:12,914 INFO L225 Difference]: With dead ends: 888 [2023-12-16 06:26:12,914 INFO L226 Difference]: Without dead ends: 765 [2023-12-16 06:26:12,915 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 [2023-12-16 06:26:12,915 INFO L413 NwaCegarLoop]: 292 mSDtfsCounter, 1373 mSDsluCounter, 822 mSDsCounter, 0 mSdLazyCounter, 823 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1373 SdHoareTripleChecker+Valid, 1114 SdHoareTripleChecker+Invalid, 828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 823 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 06:26:12,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1373 Valid, 1114 Invalid, 828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 823 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 06:26:12,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2023-12-16 06:26:12,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 338. [2023-12-16 06:26:12,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 327 states have (on average 1.3516819571865444) internal successors, (442), 337 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:12,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 442 transitions. [2023-12-16 06:26:12,921 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 442 transitions. Word has length 64 [2023-12-16 06:26:12,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:12,921 INFO L495 AbstractCegarLoop]: Abstraction has 338 states and 442 transitions. [2023-12-16 06:26:12,921 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) [2023-12-16 06:26:12,921 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 442 transitions. [2023-12-16 06:26:12,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-16 06:26:12,922 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:12,922 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] [2023-12-16 06:26:12,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-16 06:26:12,922 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-16 06:26:12,922 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:12,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1759542376, now seen corresponding path program 1 times [2023-12-16 06:26:12,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:12,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261921608] [2023-12-16 06:26:12,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:12,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:12,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:13,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:13,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:13,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261921608] [2023-12-16 06:26:13,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261921608] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:13,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:13,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 06:26:13,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378227859] [2023-12-16 06:26:13,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:13,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 06:26:13,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:13,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 06:26:13,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-16 06:26:13,090 INFO L87 Difference]: Start difference. First operand 338 states and 442 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) [2023-12-16 06:26:13,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:13,475 INFO L93 Difference]: Finished difference Result 883 states and 1219 transitions. [2023-12-16 06:26:13,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 06:26:13,475 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 [2023-12-16 06:26:13,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:13,477 INFO L225 Difference]: With dead ends: 883 [2023-12-16 06:26:13,477 INFO L226 Difference]: Without dead ends: 765 [2023-12-16 06:26:13,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-16 06:26:13,478 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 1688 mSDsluCounter, 678 mSDsCounter, 0 mSdLazyCounter, 614 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1688 SdHoareTripleChecker+Valid, 881 SdHoareTripleChecker+Invalid, 619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 06:26:13,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1688 Valid, 881 Invalid, 619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 614 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 06:26:13,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2023-12-16 06:26:13,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 338. [2023-12-16 06:26:13,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 327 states have (on average 1.348623853211009) internal successors, (441), 337 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:13,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 441 transitions. [2023-12-16 06:26:13,483 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 441 transitions. Word has length 64 [2023-12-16 06:26:13,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:13,484 INFO L495 AbstractCegarLoop]: Abstraction has 338 states and 441 transitions. [2023-12-16 06:26:13,484 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) [2023-12-16 06:26:13,484 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 441 transitions. [2023-12-16 06:26:13,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-16 06:26:13,484 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:13,484 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] [2023-12-16 06:26:13,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-16 06:26:13,485 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-16 06:26:13,485 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:13,485 INFO L85 PathProgramCache]: Analyzing trace with hash 861544116, now seen corresponding path program 1 times [2023-12-16 06:26:13,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:13,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914843232] [2023-12-16 06:26:13,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:13,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:13,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:13,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:13,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:13,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914843232] [2023-12-16 06:26:13,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914843232] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:13,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:13,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 06:26:13,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932421013] [2023-12-16 06:26:13,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:13,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 06:26:13,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:13,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 06:26:13,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-16 06:26:13,645 INFO L87 Difference]: Start difference. First operand 338 states and 441 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) [2023-12-16 06:26:14,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:14,151 INFO L93 Difference]: Finished difference Result 853 states and 1173 transitions. [2023-12-16 06:26:14,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 06:26:14,151 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 [2023-12-16 06:26:14,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:14,153 INFO L225 Difference]: With dead ends: 853 [2023-12-16 06:26:14,153 INFO L226 Difference]: Without dead ends: 745 [2023-12-16 06:26:14,154 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 [2023-12-16 06:26:14,154 INFO L413 NwaCegarLoop]: 235 mSDtfsCounter, 1139 mSDsluCounter, 1035 mSDsCounter, 0 mSdLazyCounter, 902 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1139 SdHoareTripleChecker+Valid, 1270 SdHoareTripleChecker+Invalid, 906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 902 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 06:26:14,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1139 Valid, 1270 Invalid, 906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 902 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 06:26:14,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2023-12-16 06:26:14,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 338. [2023-12-16 06:26:14,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 327 states have (on average 1.345565749235474) internal successors, (440), 337 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:14,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 440 transitions. [2023-12-16 06:26:14,182 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 440 transitions. Word has length 64 [2023-12-16 06:26:14,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:14,182 INFO L495 AbstractCegarLoop]: Abstraction has 338 states and 440 transitions. [2023-12-16 06:26:14,182 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) [2023-12-16 06:26:14,182 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 440 transitions. [2023-12-16 06:26:14,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-16 06:26:14,182 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:14,183 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] [2023-12-16 06:26:14,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-16 06:26:14,183 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-16 06:26:14,183 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:14,183 INFO L85 PathProgramCache]: Analyzing trace with hash 334726124, now seen corresponding path program 1 times [2023-12-16 06:26:14,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:14,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266070056] [2023-12-16 06:26:14,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:14,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:14,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:14,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:14,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:14,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266070056] [2023-12-16 06:26:14,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266070056] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:14,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:14,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 06:26:14,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114511018] [2023-12-16 06:26:14,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:14,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 06:26:14,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:14,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 06:26:14,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-16 06:26:14,315 INFO L87 Difference]: Start difference. First operand 338 states and 440 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) [2023-12-16 06:26:14,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:14,666 INFO L93 Difference]: Finished difference Result 675 states and 923 transitions. [2023-12-16 06:26:14,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-16 06:26:14,666 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 [2023-12-16 06:26:14,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:14,668 INFO L225 Difference]: With dead ends: 675 [2023-12-16 06:26:14,668 INFO L226 Difference]: Without dead ends: 505 [2023-12-16 06:26:14,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2023-12-16 06:26:14,669 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 1314 mSDsluCounter, 628 mSDsCounter, 0 mSdLazyCounter, 619 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1314 SdHoareTripleChecker+Valid, 853 SdHoareTripleChecker+Invalid, 624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 06:26:14,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1314 Valid, 853 Invalid, 624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 619 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 06:26:14,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2023-12-16 06:26:14,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 338. [2023-12-16 06:26:14,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 327 states have (on average 1.3394495412844036) internal successors, (438), 337 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:14,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 438 transitions. [2023-12-16 06:26:14,673 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 438 transitions. Word has length 64 [2023-12-16 06:26:14,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:14,674 INFO L495 AbstractCegarLoop]: Abstraction has 338 states and 438 transitions. [2023-12-16 06:26:14,674 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) [2023-12-16 06:26:14,674 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 438 transitions. [2023-12-16 06:26:14,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-16 06:26:14,674 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:14,674 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] [2023-12-16 06:26:14,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-16 06:26:14,675 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-16 06:26:14,675 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:14,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1265909968, now seen corresponding path program 1 times [2023-12-16 06:26:14,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:14,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863436111] [2023-12-16 06:26:14,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:14,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:14,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:14,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:14,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:14,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863436111] [2023-12-16 06:26:14,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863436111] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:14,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:14,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 06:26:14,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115137991] [2023-12-16 06:26:14,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:14,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 06:26:14,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:14,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 06:26:14,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-16 06:26:14,844 INFO L87 Difference]: Start difference. First operand 338 states and 438 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) [2023-12-16 06:26:15,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:15,368 INFO L93 Difference]: Finished difference Result 750 states and 1014 transitions. [2023-12-16 06:26:15,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 06:26:15,369 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 [2023-12-16 06:26:15,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:15,371 INFO L225 Difference]: With dead ends: 750 [2023-12-16 06:26:15,371 INFO L226 Difference]: Without dead ends: 745 [2023-12-16 06:26:15,371 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 [2023-12-16 06:26:15,371 INFO L413 NwaCegarLoop]: 310 mSDtfsCounter, 1097 mSDsluCounter, 1156 mSDsCounter, 0 mSdLazyCounter, 989 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1097 SdHoareTripleChecker+Valid, 1466 SdHoareTripleChecker+Invalid, 992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 06:26:15,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1097 Valid, 1466 Invalid, 992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 989 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 06:26:15,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2023-12-16 06:26:15,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 338. [2023-12-16 06:26:15,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 327 states have (on average 1.3333333333333333) internal successors, (436), 337 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:15,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 436 transitions. [2023-12-16 06:26:15,376 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 436 transitions. Word has length 64 [2023-12-16 06:26:15,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:15,377 INFO L495 AbstractCegarLoop]: Abstraction has 338 states and 436 transitions. [2023-12-16 06:26:15,377 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) [2023-12-16 06:26:15,377 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 436 transitions. [2023-12-16 06:26:15,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-16 06:26:15,377 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:15,377 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] [2023-12-16 06:26:15,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-16 06:26:15,377 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-16 06:26:15,378 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:15,378 INFO L85 PathProgramCache]: Analyzing trace with hash 646287134, now seen corresponding path program 1 times [2023-12-16 06:26:15,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:15,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316055613] [2023-12-16 06:26:15,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:15,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:15,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:15,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:15,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:15,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316055613] [2023-12-16 06:26:15,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316055613] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:15,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:15,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 06:26:15,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569776242] [2023-12-16 06:26:15,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:15,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 06:26:15,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:15,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 06:26:15,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-16 06:26:15,537 INFO L87 Difference]: Start difference. First operand 338 states and 436 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) [2023-12-16 06:26:16,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:16,079 INFO L93 Difference]: Finished difference Result 782 states and 1060 transitions. [2023-12-16 06:26:16,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 06:26:16,079 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 [2023-12-16 06:26:16,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:16,081 INFO L225 Difference]: With dead ends: 782 [2023-12-16 06:26:16,081 INFO L226 Difference]: Without dead ends: 765 [2023-12-16 06:26:16,082 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 [2023-12-16 06:26:16,082 INFO L413 NwaCegarLoop]: 374 mSDtfsCounter, 1107 mSDsluCounter, 1299 mSDsCounter, 0 mSdLazyCounter, 1046 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1107 SdHoareTripleChecker+Valid, 1673 SdHoareTripleChecker+Invalid, 1049 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1046 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 06:26:16,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1107 Valid, 1673 Invalid, 1049 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1046 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 06:26:16,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2023-12-16 06:26:16,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 338. [2023-12-16 06:26:16,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 327 states have (on average 1.327217125382263) internal successors, (434), 337 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:16,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 434 transitions. [2023-12-16 06:26:16,087 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 434 transitions. Word has length 64 [2023-12-16 06:26:16,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:16,088 INFO L495 AbstractCegarLoop]: Abstraction has 338 states and 434 transitions. [2023-12-16 06:26:16,088 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) [2023-12-16 06:26:16,088 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 434 transitions. [2023-12-16 06:26:16,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-16 06:26:16,088 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:16,090 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] [2023-12-16 06:26:16,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-16 06:26:16,090 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-16 06:26:16,091 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:16,091 INFO L85 PathProgramCache]: Analyzing trace with hash 107558087, now seen corresponding path program 1 times [2023-12-16 06:26:16,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:16,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271274908] [2023-12-16 06:26:16,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:16,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:16,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:17,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:17,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:17,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271274908] [2023-12-16 06:26:17,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271274908] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:17,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:17,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2023-12-16 06:26:17,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528737490] [2023-12-16 06:26:17,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:17,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-16 06:26:17,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:17,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-16 06:26:17,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=485, Unknown=0, NotChecked=0, Total=552 [2023-12-16 06:26:17,150 INFO L87 Difference]: Start difference. First operand 338 states and 434 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) [2023-12-16 06:26:19,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:19,417 INFO L93 Difference]: Finished difference Result 870 states and 1149 transitions. [2023-12-16 06:26:19,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-12-16 06:26:19,417 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 [2023-12-16 06:26:19,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:19,419 INFO L225 Difference]: With dead ends: 870 [2023-12-16 06:26:19,419 INFO L226 Difference]: Without dead ends: 760 [2023-12-16 06:26:19,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=342, Invalid=1550, Unknown=0, NotChecked=0, Total=1892 [2023-12-16 06:26:19,420 INFO L413 NwaCegarLoop]: 477 mSDtfsCounter, 1586 mSDsluCounter, 5532 mSDsCounter, 0 mSdLazyCounter, 3120 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1586 SdHoareTripleChecker+Valid, 6009 SdHoareTripleChecker+Invalid, 3123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-16 06:26:19,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1586 Valid, 6009 Invalid, 3123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 3120 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-16 06:26:19,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 760 states. [2023-12-16 06:26:19,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 760 to 349. [2023-12-16 06:26:19,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 338 states have (on average 1.3254437869822486) internal successors, (448), 348 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:19,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 448 transitions. [2023-12-16 06:26:19,426 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 448 transitions. Word has length 66 [2023-12-16 06:26:19,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:19,426 INFO L495 AbstractCegarLoop]: Abstraction has 349 states and 448 transitions. [2023-12-16 06:26:19,427 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) [2023-12-16 06:26:19,427 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 448 transitions. [2023-12-16 06:26:19,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-16 06:26:19,427 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:19,427 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] [2023-12-16 06:26:19,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-16 06:26:19,427 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-16 06:26:19,428 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:19,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1672959061, now seen corresponding path program 1 times [2023-12-16 06:26:19,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:19,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581969526] [2023-12-16 06:26:19,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:19,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:19,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:19,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:19,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:19,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581969526] [2023-12-16 06:26:19,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581969526] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:19,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:19,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 06:26:19,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289393251] [2023-12-16 06:26:19,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:19,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 06:26:19,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:19,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 06:26:19,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-16 06:26:19,726 INFO L87 Difference]: Start difference. First operand 349 states and 448 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) [2023-12-16 06:26:20,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:20,116 INFO L93 Difference]: Finished difference Result 871 states and 1169 transitions. [2023-12-16 06:26:20,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-16 06:26:20,117 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 [2023-12-16 06:26:20,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:20,118 INFO L225 Difference]: With dead ends: 871 [2023-12-16 06:26:20,118 INFO L226 Difference]: Without dead ends: 691 [2023-12-16 06:26:20,119 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 [2023-12-16 06:26:20,119 INFO L413 NwaCegarLoop]: 341 mSDtfsCounter, 1479 mSDsluCounter, 912 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1479 SdHoareTripleChecker+Valid, 1253 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 06:26:20,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1479 Valid, 1253 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 06:26:20,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2023-12-16 06:26:20,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 275. [2023-12-16 06:26:20,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 268 states have (on average 1.3320895522388059) internal successors, (357), 274 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:20,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 357 transitions. [2023-12-16 06:26:20,124 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 357 transitions. Word has length 66 [2023-12-16 06:26:20,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:20,124 INFO L495 AbstractCegarLoop]: Abstraction has 275 states and 357 transitions. [2023-12-16 06:26:20,124 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) [2023-12-16 06:26:20,125 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 357 transitions. [2023-12-16 06:26:20,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-16 06:26:20,125 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:20,125 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] [2023-12-16 06:26:20,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-16 06:26:20,125 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-16 06:26:20,125 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:20,126 INFO L85 PathProgramCache]: Analyzing trace with hash 89242274, now seen corresponding path program 1 times [2023-12-16 06:26:20,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:20,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612356487] [2023-12-16 06:26:20,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:20,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:20,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:21,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:21,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:21,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612356487] [2023-12-16 06:26:21,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612356487] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:21,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:21,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2023-12-16 06:26:21,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573347502] [2023-12-16 06:26:21,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:21,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-16 06:26:21,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:21,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-16 06:26:21,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=488, Unknown=0, NotChecked=0, Total=552 [2023-12-16 06:26:21,076 INFO L87 Difference]: Start difference. First operand 275 states and 357 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) [2023-12-16 06:26:22,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:22,415 INFO L93 Difference]: Finished difference Result 596 states and 789 transitions. [2023-12-16 06:26:22,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-12-16 06:26:22,416 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 [2023-12-16 06:26:22,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:22,417 INFO L225 Difference]: With dead ends: 596 [2023-12-16 06:26:22,417 INFO L226 Difference]: Without dead ends: 486 [2023-12-16 06:26:22,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 299 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=299, Invalid=1593, Unknown=0, NotChecked=0, Total=1892 [2023-12-16 06:26:22,418 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 531 mSDsluCounter, 2596 mSDsCounter, 0 mSdLazyCounter, 1301 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 531 SdHoareTripleChecker+Valid, 2800 SdHoareTripleChecker+Invalid, 1305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 06:26:22,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [531 Valid, 2800 Invalid, 1305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1301 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 06:26:22,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2023-12-16 06:26:22,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 285. [2023-12-16 06:26:22,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 278 states have (on average 1.3381294964028776) internal successors, (372), 284 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:22,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 372 transitions. [2023-12-16 06:26:22,426 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 372 transitions. Word has length 66 [2023-12-16 06:26:22,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:22,426 INFO L495 AbstractCegarLoop]: Abstraction has 285 states and 372 transitions. [2023-12-16 06:26:22,426 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) [2023-12-16 06:26:22,426 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 372 transitions. [2023-12-16 06:26:22,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-16 06:26:22,426 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:22,426 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] [2023-12-16 06:26:22,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-16 06:26:22,427 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-16 06:26:22,427 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:22,427 INFO L85 PathProgramCache]: Analyzing trace with hash 1372728877, now seen corresponding path program 1 times [2023-12-16 06:26:22,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:22,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824691515] [2023-12-16 06:26:22,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:22,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:22,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:22,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:22,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:22,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824691515] [2023-12-16 06:26:22,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824691515] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:22,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:22,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-16 06:26:22,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658967727] [2023-12-16 06:26:22,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:22,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-16 06:26:22,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:22,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-16 06:26:22,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-12-16 06:26:22,752 INFO L87 Difference]: Start difference. First operand 285 states and 372 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) [2023-12-16 06:26:23,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:23,115 INFO L93 Difference]: Finished difference Result 657 states and 910 transitions. [2023-12-16 06:26:23,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 06:26:23,115 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 [2023-12-16 06:26:23,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:23,117 INFO L225 Difference]: With dead ends: 657 [2023-12-16 06:26:23,117 INFO L226 Difference]: Without dead ends: 509 [2023-12-16 06:26:23,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=118, Invalid=388, Unknown=0, NotChecked=0, Total=506 [2023-12-16 06:26:23,118 INFO L413 NwaCegarLoop]: 276 mSDtfsCounter, 785 mSDsluCounter, 1782 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 785 SdHoareTripleChecker+Valid, 2058 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:26:23,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [785 Valid, 2058 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:26:23,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2023-12-16 06:26:23,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 243. [2023-12-16 06:26:23,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 239 states have (on average 1.3389121338912133) internal successors, (320), 242 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:23,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 320 transitions. [2023-12-16 06:26:23,123 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 320 transitions. Word has length 66 [2023-12-16 06:26:23,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:23,123 INFO L495 AbstractCegarLoop]: Abstraction has 243 states and 320 transitions. [2023-12-16 06:26:23,123 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) [2023-12-16 06:26:23,123 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 320 transitions. [2023-12-16 06:26:23,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-16 06:26:23,123 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:23,123 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] [2023-12-16 06:26:23,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-16 06:26:23,124 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-16 06:26:23,124 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:23,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1736033602, now seen corresponding path program 1 times [2023-12-16 06:26:23,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:23,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645676996] [2023-12-16 06:26:23,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:23,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:23,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:23,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:23,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:23,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645676996] [2023-12-16 06:26:23,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645676996] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:23,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:23,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-16 06:26:23,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045230715] [2023-12-16 06:26:23,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:23,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-16 06:26:23,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:23,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-16 06:26:23,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-12-16 06:26:23,475 INFO L87 Difference]: Start difference. First operand 243 states and 320 transitions. Second operand has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 11 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) [2023-12-16 06:26:23,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:23,778 INFO L93 Difference]: Finished difference Result 495 states and 680 transitions. [2023-12-16 06:26:23,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-16 06:26:23,779 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 11 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 [2023-12-16 06:26:23,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:23,780 INFO L225 Difference]: With dead ends: 495 [2023-12-16 06:26:23,780 INFO L226 Difference]: Without dead ends: 383 [2023-12-16 06:26:23,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2023-12-16 06:26:23,781 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 499 mSDsluCounter, 1032 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 499 SdHoareTripleChecker+Valid, 1182 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:26:23,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [499 Valid, 1182 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:26:23,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2023-12-16 06:26:23,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 223. [2023-12-16 06:26:23,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 220 states have (on average 1.3181818181818181) internal successors, (290), 222 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:23,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 290 transitions. [2023-12-16 06:26:23,785 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 290 transitions. Word has length 67 [2023-12-16 06:26:23,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:23,785 INFO L495 AbstractCegarLoop]: Abstraction has 223 states and 290 transitions. [2023-12-16 06:26:23,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 11 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) [2023-12-16 06:26:23,785 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 290 transitions. [2023-12-16 06:26:23,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-16 06:26:23,785 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:23,785 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] [2023-12-16 06:26:23,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-16 06:26:23,786 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)] === [2023-12-16 06:26:23,786 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:23,786 INFO L85 PathProgramCache]: Analyzing trace with hash -812946096, now seen corresponding path program 1 times [2023-12-16 06:26:23,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:23,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374417919] [2023-12-16 06:26:23,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:23,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:23,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:23,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:23,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:23,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374417919] [2023-12-16 06:26:23,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374417919] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:23,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:23,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 06:26:23,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354971867] [2023-12-16 06:26:23,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:23,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 06:26:23,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:23,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 06:26:23,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-16 06:26:23,927 INFO L87 Difference]: Start difference. First operand 223 states and 290 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) [2023-12-16 06:26:24,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:24,174 INFO L93 Difference]: Finished difference Result 372 states and 495 transitions. [2023-12-16 06:26:24,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 06:26:24,175 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 [2023-12-16 06:26:24,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:24,177 INFO L225 Difference]: With dead ends: 372 [2023-12-16 06:26:24,177 INFO L226 Difference]: Without dead ends: 365 [2023-12-16 06:26:24,177 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 [2023-12-16 06:26:24,177 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 544 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 544 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 06:26:24,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [544 Valid, 560 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 06:26:24,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2023-12-16 06:26:24,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 223. [2023-12-16 06:26:24,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 220 states have (on average 1.3136363636363637) internal successors, (289), 222 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:24,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 289 transitions. [2023-12-16 06:26:24,182 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 289 transitions. Word has length 67 [2023-12-16 06:26:24,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:24,182 INFO L495 AbstractCegarLoop]: Abstraction has 223 states and 289 transitions. [2023-12-16 06:26:24,182 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) [2023-12-16 06:26:24,182 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 289 transitions. [2023-12-16 06:26:24,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-16 06:26:24,182 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:24,183 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] [2023-12-16 06:26:24,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-16 06:26:24,183 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)] === [2023-12-16 06:26:24,183 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:24,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1116116258, now seen corresponding path program 1 times [2023-12-16 06:26:24,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:24,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880909436] [2023-12-16 06:26:24,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:24,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:24,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:24,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:24,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:24,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880909436] [2023-12-16 06:26:24,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880909436] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:24,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:24,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 06:26:24,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073980839] [2023-12-16 06:26:24,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:24,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 06:26:24,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:24,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 06:26:24,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-16 06:26:24,304 INFO L87 Difference]: Start difference. First operand 223 states and 289 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) [2023-12-16 06:26:24,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:24,597 INFO L93 Difference]: Finished difference Result 525 states and 711 transitions. [2023-12-16 06:26:24,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-16 06:26:24,597 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 [2023-12-16 06:26:24,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:24,598 INFO L225 Difference]: With dead ends: 525 [2023-12-16 06:26:24,598 INFO L226 Difference]: Without dead ends: 389 [2023-12-16 06:26:24,598 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 [2023-12-16 06:26:24,599 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 484 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 06:26:24,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [484 Valid, 584 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 06:26:24,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2023-12-16 06:26:24,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 223. [2023-12-16 06:26:24,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 220 states have (on average 1.3045454545454545) internal successors, (287), 222 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:24,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 287 transitions. [2023-12-16 06:26:24,602 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 287 transitions. Word has length 67 [2023-12-16 06:26:24,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:24,602 INFO L495 AbstractCegarLoop]: Abstraction has 223 states and 287 transitions. [2023-12-16 06:26:24,602 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) [2023-12-16 06:26:24,602 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 287 transitions. [2023-12-16 06:26:24,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-16 06:26:24,603 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:24,603 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] [2023-12-16 06:26:24,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-16 06:26:24,603 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-16 06:26:24,603 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:24,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1523699975, now seen corresponding path program 1 times [2023-12-16 06:26:24,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:24,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738885015] [2023-12-16 06:26:24,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:24,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:24,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:24,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:24,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:24,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738885015] [2023-12-16 06:26:24,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738885015] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:24,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:24,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-16 06:26:24,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829794209] [2023-12-16 06:26:24,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:24,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-16 06:26:24,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:24,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-16 06:26:24,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-12-16 06:26:24,934 INFO L87 Difference]: Start difference. First operand 223 states and 287 transitions. Second operand has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 12 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) [2023-12-16 06:26:25,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:25,586 INFO L93 Difference]: Finished difference Result 1051 states and 1484 transitions. [2023-12-16 06:26:25,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-16 06:26:25,586 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 12 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 [2023-12-16 06:26:25,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:25,589 INFO L225 Difference]: With dead ends: 1051 [2023-12-16 06:26:25,589 INFO L226 Difference]: Without dead ends: 1045 [2023-12-16 06:26:25,590 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 [2023-12-16 06:26:25,590 INFO L413 NwaCegarLoop]: 370 mSDtfsCounter, 1048 mSDsluCounter, 2510 mSDsCounter, 0 mSdLazyCounter, 638 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1048 SdHoareTripleChecker+Valid, 2880 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 06:26:25,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1048 Valid, 2880 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 638 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 06:26:25,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2023-12-16 06:26:25,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 217. [2023-12-16 06:26:25,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 215 states have (on average 1.302325581395349) internal successors, (280), 216 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:25,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 280 transitions. [2023-12-16 06:26:25,599 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 280 transitions. Word has length 69 [2023-12-16 06:26:25,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:25,599 INFO L495 AbstractCegarLoop]: Abstraction has 217 states and 280 transitions. [2023-12-16 06:26:25,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 12 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) [2023-12-16 06:26:25,599 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 280 transitions. [2023-12-16 06:26:25,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-16 06:26:25,600 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:25,600 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] [2023-12-16 06:26:25,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-16 06:26:25,600 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-16 06:26:25,600 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:25,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1858906752, now seen corresponding path program 1 times [2023-12-16 06:26:25,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:25,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417599166] [2023-12-16 06:26:25,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:25,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:25,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:26,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:26,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:26,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417599166] [2023-12-16 06:26:26,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417599166] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:26,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:26,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2023-12-16 06:26:26,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165745117] [2023-12-16 06:26:26,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:26,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-12-16 06:26:26,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:26,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-12-16 06:26:26,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=444, Unknown=0, NotChecked=0, Total=506 [2023-12-16 06:26:26,509 INFO L87 Difference]: Start difference. First operand 217 states and 280 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) [2023-12-16 06:26:27,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:27,677 INFO L93 Difference]: Finished difference Result 381 states and 501 transitions. [2023-12-16 06:26:27,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-12-16 06:26:27,677 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 [2023-12-16 06:26:27,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:27,678 INFO L225 Difference]: With dead ends: 381 [2023-12-16 06:26:27,678 INFO L226 Difference]: Without dead ends: 373 [2023-12-16 06:26:27,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 275 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=290, Invalid=1432, Unknown=0, NotChecked=0, Total=1722 [2023-12-16 06:26:27,679 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 424 mSDsluCounter, 2541 mSDsCounter, 0 mSdLazyCounter, 1199 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 2768 SdHoareTripleChecker+Invalid, 1199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 06:26:27,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [424 Valid, 2768 Invalid, 1199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1199 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 06:26:27,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2023-12-16 06:26:27,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 226. [2023-12-16 06:26:27,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 224 states have (on average 1.2991071428571428) internal successors, (291), 225 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:27,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 291 transitions. [2023-12-16 06:26:27,683 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 291 transitions. Word has length 69 [2023-12-16 06:26:27,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:27,683 INFO L495 AbstractCegarLoop]: Abstraction has 226 states and 291 transitions. [2023-12-16 06:26:27,683 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) [2023-12-16 06:26:27,683 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 291 transitions. [2023-12-16 06:26:27,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-16 06:26:27,683 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:27,683 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] [2023-12-16 06:26:27,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-16 06:26:27,684 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-16 06:26:27,684 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:27,684 INFO L85 PathProgramCache]: Analyzing trace with hash 7936992, now seen corresponding path program 1 times [2023-12-16 06:26:27,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:27,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293959110] [2023-12-16 06:26:27,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:27,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:27,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:28,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:28,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:28,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293959110] [2023-12-16 06:26:28,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293959110] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:28,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:28,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-16 06:26:28,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904404280] [2023-12-16 06:26:28,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:28,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-16 06:26:28,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:28,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-16 06:26:28,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-12-16 06:26:28,057 INFO L87 Difference]: Start difference. First operand 226 states and 291 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) [2023-12-16 06:26:28,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:28,748 INFO L93 Difference]: Finished difference Result 840 states and 1179 transitions. [2023-12-16 06:26:28,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-16 06:26:28,753 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 [2023-12-16 06:26:28,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:28,756 INFO L225 Difference]: With dead ends: 840 [2023-12-16 06:26:28,756 INFO L226 Difference]: Without dead ends: 825 [2023-12-16 06:26:28,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2023-12-16 06:26:28,757 INFO L413 NwaCegarLoop]: 387 mSDtfsCounter, 976 mSDsluCounter, 2421 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 976 SdHoareTripleChecker+Valid, 2808 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 06:26:28,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [976 Valid, 2808 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 530 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 06:26:28,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 825 states. [2023-12-16 06:26:28,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 825 to 205. [2023-12-16 06:26:28,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 204 states have (on average 1.303921568627451) internal successors, (266), 204 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:28,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 266 transitions. [2023-12-16 06:26:28,764 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 266 transitions. Word has length 70 [2023-12-16 06:26:28,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:28,764 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 266 transitions. [2023-12-16 06:26:28,765 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) [2023-12-16 06:26:28,765 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 266 transitions. [2023-12-16 06:26:28,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-16 06:26:28,765 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:28,765 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] [2023-12-16 06:26:28,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-16 06:26:28,766 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)] === [2023-12-16 06:26:28,766 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:28,766 INFO L85 PathProgramCache]: Analyzing trace with hash 258319301, now seen corresponding path program 1 times [2023-12-16 06:26:28,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:28,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965997199] [2023-12-16 06:26:28,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:28,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:28,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:28,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:28,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:28,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965997199] [2023-12-16 06:26:28,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965997199] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:28,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:28,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 06:26:28,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108496959] [2023-12-16 06:26:28,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:28,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 06:26:28,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:28,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 06:26:28,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 06:26:28,843 INFO L87 Difference]: Start difference. First operand 205 states and 266 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) [2023-12-16 06:26:28,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:28,938 INFO L93 Difference]: Finished difference Result 1053 states and 1530 transitions. [2023-12-16 06:26:28,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 06:26:28,939 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 [2023-12-16 06:26:28,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:28,941 INFO L225 Difference]: With dead ends: 1053 [2023-12-16 06:26:28,941 INFO L226 Difference]: Without dead ends: 947 [2023-12-16 06:26:28,941 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 [2023-12-16 06:26:28,942 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 843 mSDsluCounter, 1110 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 843 SdHoareTripleChecker+Valid, 1272 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 [2023-12-16 06:26:28,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [843 Valid, 1272 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:26:28,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 947 states. [2023-12-16 06:26:28,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 947 to 309. [2023-12-16 06:26:28,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 308 states have (on average 1.3603896103896105) internal successors, (419), 308 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:28,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 419 transitions. [2023-12-16 06:26:28,948 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 419 transitions. Word has length 92 [2023-12-16 06:26:28,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:28,949 INFO L495 AbstractCegarLoop]: Abstraction has 309 states and 419 transitions. [2023-12-16 06:26:28,949 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) [2023-12-16 06:26:28,949 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 419 transitions. [2023-12-16 06:26:28,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-16 06:26:28,949 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:28,949 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] [2023-12-16 06:26:28,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-16 06:26:28,950 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)] === [2023-12-16 06:26:28,950 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:28,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1995837309, now seen corresponding path program 1 times [2023-12-16 06:26:28,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:28,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473107115] [2023-12-16 06:26:28,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:28,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:28,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:29,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:29,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:29,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473107115] [2023-12-16 06:26:29,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473107115] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:29,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:29,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 06:26:29,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432933637] [2023-12-16 06:26:29,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:29,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 06:26:29,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:29,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 06:26:29,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 06:26:29,058 INFO L87 Difference]: Start difference. First operand 309 states and 419 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) [2023-12-16 06:26:29,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:29,122 INFO L93 Difference]: Finished difference Result 1255 states and 1817 transitions. [2023-12-16 06:26:29,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 06:26:29,122 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 [2023-12-16 06:26:29,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:29,124 INFO L225 Difference]: With dead ends: 1255 [2023-12-16 06:26:29,124 INFO L226 Difference]: Without dead ends: 1045 [2023-12-16 06:26:29,125 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 [2023-12-16 06:26:29,125 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 648 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 648 SdHoareTripleChecker+Valid, 775 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 [2023-12-16 06:26:29,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [648 Valid, 775 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:26:29,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2023-12-16 06:26:29,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 517. [2023-12-16 06:26:29,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 516 states have (on average 1.4089147286821706) internal successors, (727), 516 states have internal predecessors, (727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:29,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 727 transitions. [2023-12-16 06:26:29,133 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 727 transitions. Word has length 94 [2023-12-16 06:26:29,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:29,133 INFO L495 AbstractCegarLoop]: Abstraction has 517 states and 727 transitions. [2023-12-16 06:26:29,133 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) [2023-12-16 06:26:29,133 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 727 transitions. [2023-12-16 06:26:29,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-16 06:26:29,134 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:29,134 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] [2023-12-16 06:26:29,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-16 06:26:29,134 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)] === [2023-12-16 06:26:29,134 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:29,134 INFO L85 PathProgramCache]: Analyzing trace with hash -1133377405, now seen corresponding path program 1 times [2023-12-16 06:26:29,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:29,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065915169] [2023-12-16 06:26:29,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:29,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:29,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:29,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:29,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:29,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065915169] [2023-12-16 06:26:29,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065915169] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:29,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:29,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 06:26:29,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968256322] [2023-12-16 06:26:29,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:29,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 06:26:29,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:29,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 06:26:29,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 06:26:29,208 INFO L87 Difference]: Start difference. First operand 517 states and 727 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) [2023-12-16 06:26:29,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:29,264 INFO L93 Difference]: Finished difference Result 1463 states and 2125 transitions. [2023-12-16 06:26:29,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 06:26:29,264 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 [2023-12-16 06:26:29,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:29,267 INFO L225 Difference]: With dead ends: 1463 [2023-12-16 06:26:29,267 INFO L226 Difference]: Without dead ends: 1253 [2023-12-16 06:26:29,268 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 [2023-12-16 06:26:29,270 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 649 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 649 SdHoareTripleChecker+Valid, 706 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 [2023-12-16 06:26:29,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [649 Valid, 706 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:26:29,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1253 states. [2023-12-16 06:26:29,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1253 to 829. [2023-12-16 06:26:29,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 829 states, 828 states have (on average 1.434782608695652) internal successors, (1188), 828 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:29,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 1188 transitions. [2023-12-16 06:26:29,282 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 1188 transitions. Word has length 94 [2023-12-16 06:26:29,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:29,282 INFO L495 AbstractCegarLoop]: Abstraction has 829 states and 1188 transitions. [2023-12-16 06:26:29,282 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) [2023-12-16 06:26:29,282 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 1188 transitions. [2023-12-16 06:26:29,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-16 06:26:29,283 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:29,283 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] [2023-12-16 06:26:29,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-12-16 06:26:29,283 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)] === [2023-12-16 06:26:29,283 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:29,284 INFO L85 PathProgramCache]: Analyzing trace with hash 2140031494, now seen corresponding path program 1 times [2023-12-16 06:26:29,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:29,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716636266] [2023-12-16 06:26:29,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:29,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:29,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:29,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:29,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:29,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716636266] [2023-12-16 06:26:29,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716636266] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:29,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:29,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 06:26:29,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732798046] [2023-12-16 06:26:29,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:29,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 06:26:29,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:29,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 06:26:29,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-16 06:26:29,397 INFO L87 Difference]: Start difference. First operand 829 states and 1188 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) [2023-12-16 06:26:29,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:29,463 INFO L93 Difference]: Finished difference Result 1561 states and 2269 transitions. [2023-12-16 06:26:29,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 06:26:29,464 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 [2023-12-16 06:26:29,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:29,465 INFO L225 Difference]: With dead ends: 1561 [2023-12-16 06:26:29,465 INFO L226 Difference]: Without dead ends: 831 [2023-12-16 06:26:29,466 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-12-16 06:26:29,467 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 75 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 454 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 [2023-12-16 06:26:29,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 454 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:26:29,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 831 states. [2023-12-16 06:26:29,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 831 to 829. [2023-12-16 06:26:29,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 829 states, 828 states have (on average 1.4251207729468598) internal successors, (1180), 828 states have internal predecessors, (1180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:29,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 1180 transitions. [2023-12-16 06:26:29,476 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 1180 transitions. Word has length 94 [2023-12-16 06:26:29,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:29,476 INFO L495 AbstractCegarLoop]: Abstraction has 829 states and 1180 transitions. [2023-12-16 06:26:29,476 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) [2023-12-16 06:26:29,476 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 1180 transitions. [2023-12-16 06:26:29,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-16 06:26:29,477 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:29,477 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] [2023-12-16 06:26:29,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-12-16 06:26:29,477 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)] === [2023-12-16 06:26:29,477 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:29,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1370738501, now seen corresponding path program 1 times [2023-12-16 06:26:29,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:29,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593179934] [2023-12-16 06:26:29,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:29,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:29,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:29,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:29,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:29,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593179934] [2023-12-16 06:26:29,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593179934] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:29,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:29,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:26:29,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119922245] [2023-12-16 06:26:29,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:29,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:26:29,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:29,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:26:29,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:26:29,508 INFO L87 Difference]: Start difference. First operand 829 states and 1180 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) [2023-12-16 06:26:29,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:29,526 INFO L93 Difference]: Finished difference Result 2199 states and 3174 transitions. [2023-12-16 06:26:29,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:26:29,526 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 [2023-12-16 06:26:29,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:29,529 INFO L225 Difference]: With dead ends: 2199 [2023-12-16 06:26:29,529 INFO L226 Difference]: Without dead ends: 1469 [2023-12-16 06:26:29,530 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 [2023-12-16 06:26:29,531 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 67 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 366 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 [2023-12-16 06:26:29,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 366 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:26:29,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1469 states. [2023-12-16 06:26:29,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1469 to 1467. [2023-12-16 06:26:29,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1467 states, 1466 states have (on average 1.4140518417462482) internal successors, (2073), 1466 states have internal predecessors, (2073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:29,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1467 states to 1467 states and 2073 transitions. [2023-12-16 06:26:29,548 INFO L78 Accepts]: Start accepts. Automaton has 1467 states and 2073 transitions. Word has length 94 [2023-12-16 06:26:29,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:29,548 INFO L495 AbstractCegarLoop]: Abstraction has 1467 states and 2073 transitions. [2023-12-16 06:26:29,548 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) [2023-12-16 06:26:29,549 INFO L276 IsEmpty]: Start isEmpty. Operand 1467 states and 2073 transitions. [2023-12-16 06:26:29,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-16 06:26:29,549 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:29,549 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] [2023-12-16 06:26:29,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-12-16 06:26:29,550 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)] === [2023-12-16 06:26:29,550 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:29,550 INFO L85 PathProgramCache]: Analyzing trace with hash 257200399, now seen corresponding path program 1 times [2023-12-16 06:26:29,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:29,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964661044] [2023-12-16 06:26:29,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:29,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:29,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:29,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:29,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:29,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964661044] [2023-12-16 06:26:29,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964661044] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:29,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:29,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 06:26:29,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329183281] [2023-12-16 06:26:29,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:29,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 06:26:29,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:29,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 06:26:29,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 06:26:29,625 INFO L87 Difference]: Start difference. First operand 1467 states and 2073 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) [2023-12-16 06:26:29,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:29,687 INFO L93 Difference]: Finished difference Result 3037 states and 4334 transitions. [2023-12-16 06:26:29,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 06:26:29,694 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 [2023-12-16 06:26:29,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:29,701 INFO L225 Difference]: With dead ends: 3037 [2023-12-16 06:26:29,701 INFO L226 Difference]: Without dead ends: 2645 [2023-12-16 06:26:29,702 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 [2023-12-16 06:26:29,703 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 616 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 616 SdHoareTripleChecker+Valid, 751 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 [2023-12-16 06:26:29,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [616 Valid, 751 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:26:29,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2645 states. [2023-12-16 06:26:29,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2645 to 1857. [2023-12-16 06:26:29,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1857 states, 1856 states have (on average 1.4186422413793103) internal successors, (2633), 1856 states have internal predecessors, (2633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:29,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1857 states to 1857 states and 2633 transitions. [2023-12-16 06:26:29,776 INFO L78 Accepts]: Start accepts. Automaton has 1857 states and 2633 transitions. Word has length 94 [2023-12-16 06:26:29,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:29,776 INFO L495 AbstractCegarLoop]: Abstraction has 1857 states and 2633 transitions. [2023-12-16 06:26:29,776 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) [2023-12-16 06:26:29,776 INFO L276 IsEmpty]: Start isEmpty. Operand 1857 states and 2633 transitions. [2023-12-16 06:26:29,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-16 06:26:29,792 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:29,793 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] [2023-12-16 06:26:29,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-12-16 06:26:29,793 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)] === [2023-12-16 06:26:29,794 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:29,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1322748169, now seen corresponding path program 1 times [2023-12-16 06:26:29,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:29,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266225602] [2023-12-16 06:26:29,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:29,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:29,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:29,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:29,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:29,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266225602] [2023-12-16 06:26:29,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266225602] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:29,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:29,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 06:26:29,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494050125] [2023-12-16 06:26:29,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:29,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 06:26:29,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:29,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 06:26:29,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 06:26:29,907 INFO L87 Difference]: Start difference. First operand 1857 states and 2633 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) [2023-12-16 06:26:29,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:29,971 INFO L93 Difference]: Finished difference Result 3427 states and 4894 transitions. [2023-12-16 06:26:29,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 06:26:29,972 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 [2023-12-16 06:26:29,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:29,995 INFO L225 Difference]: With dead ends: 3427 [2023-12-16 06:26:29,995 INFO L226 Difference]: Without dead ends: 3035 [2023-12-16 06:26:29,997 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 [2023-12-16 06:26:29,997 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 585 mSDsluCounter, 578 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 585 SdHoareTripleChecker+Valid, 803 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 [2023-12-16 06:26:29,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [585 Valid, 803 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:26:29,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3035 states. [2023-12-16 06:26:30,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3035 to 2247. [2023-12-16 06:26:30,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2247 states, 2246 states have (on average 1.4216384683882457) internal successors, (3193), 2246 states have internal predecessors, (3193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:30,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2247 states to 2247 states and 3193 transitions. [2023-12-16 06:26:30,026 INFO L78 Accepts]: Start accepts. Automaton has 2247 states and 3193 transitions. Word has length 94 [2023-12-16 06:26:30,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:30,027 INFO L495 AbstractCegarLoop]: Abstraction has 2247 states and 3193 transitions. [2023-12-16 06:26:30,027 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) [2023-12-16 06:26:30,027 INFO L276 IsEmpty]: Start isEmpty. Operand 2247 states and 3193 transitions. [2023-12-16 06:26:30,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-16 06:26:30,028 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:30,028 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] [2023-12-16 06:26:30,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-12-16 06:26:30,028 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)] === [2023-12-16 06:26:30,028 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:30,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1857299327, now seen corresponding path program 1 times [2023-12-16 06:26:30,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:30,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895004558] [2023-12-16 06:26:30,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:30,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:30,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:30,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:30,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:30,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895004558] [2023-12-16 06:26:30,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895004558] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:30,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:30,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:26:30,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368508415] [2023-12-16 06:26:30,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:30,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:26:30,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:30,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:26:30,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:26:30,093 INFO L87 Difference]: Start difference. First operand 2247 states and 3193 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) [2023-12-16 06:26:30,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:30,112 INFO L93 Difference]: Finished difference Result 5707 states and 8129 transitions. [2023-12-16 06:26:30,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:26:30,113 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 [2023-12-16 06:26:30,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:30,125 INFO L225 Difference]: With dead ends: 5707 [2023-12-16 06:26:30,125 INFO L226 Difference]: Without dead ends: 3559 [2023-12-16 06:26:30,128 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 [2023-12-16 06:26:30,128 INFO L413 NwaCegarLoop]: 220 mSDtfsCounter, 78 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 341 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 [2023-12-16 06:26:30,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 341 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:26:30,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3559 states. [2023-12-16 06:26:30,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3559 to 3381. [2023-12-16 06:26:30,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3381 states, 3380 states have (on average 1.407396449704142) internal successors, (4757), 3380 states have internal predecessors, (4757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:30,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3381 states to 3381 states and 4757 transitions. [2023-12-16 06:26:30,163 INFO L78 Accepts]: Start accepts. Automaton has 3381 states and 4757 transitions. Word has length 95 [2023-12-16 06:26:30,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:30,164 INFO L495 AbstractCegarLoop]: Abstraction has 3381 states and 4757 transitions. [2023-12-16 06:26:30,164 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) [2023-12-16 06:26:30,164 INFO L276 IsEmpty]: Start isEmpty. Operand 3381 states and 4757 transitions. [2023-12-16 06:26:30,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-16 06:26:30,165 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:30,165 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] [2023-12-16 06:26:30,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-12-16 06:26:30,165 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)] === [2023-12-16 06:26:30,165 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:30,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1350299432, now seen corresponding path program 1 times [2023-12-16 06:26:30,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:30,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436491794] [2023-12-16 06:26:30,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:30,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:30,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:30,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:30,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:30,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436491794] [2023-12-16 06:26:30,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436491794] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:30,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:30,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:26:30,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773901177] [2023-12-16 06:26:30,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:30,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:26:30,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:30,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:26:30,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:26:30,228 INFO L87 Difference]: Start difference. First operand 3381 states and 4757 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) [2023-12-16 06:26:30,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:30,256 INFO L93 Difference]: Finished difference Result 9681 states and 13593 transitions. [2023-12-16 06:26:30,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:26:30,257 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 [2023-12-16 06:26:30,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:30,264 INFO L225 Difference]: With dead ends: 9681 [2023-12-16 06:26:30,264 INFO L226 Difference]: Without dead ends: 6399 [2023-12-16 06:26:30,268 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 [2023-12-16 06:26:30,269 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 71 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 341 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 [2023-12-16 06:26:30,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 341 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:26:30,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6399 states. [2023-12-16 06:26:30,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6399 to 6133. [2023-12-16 06:26:30,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6133 states, 6132 states have (on average 1.393835616438356) internal successors, (8547), 6132 states have internal predecessors, (8547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:30,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6133 states to 6133 states and 8547 transitions. [2023-12-16 06:26:30,328 INFO L78 Accepts]: Start accepts. Automaton has 6133 states and 8547 transitions. Word has length 96 [2023-12-16 06:26:30,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:30,328 INFO L495 AbstractCegarLoop]: Abstraction has 6133 states and 8547 transitions. [2023-12-16 06:26:30,329 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) [2023-12-16 06:26:30,329 INFO L276 IsEmpty]: Start isEmpty. Operand 6133 states and 8547 transitions. [2023-12-16 06:26:30,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-16 06:26:30,329 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:30,329 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] [2023-12-16 06:26:30,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-12-16 06:26:30,330 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)] === [2023-12-16 06:26:30,330 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:30,330 INFO L85 PathProgramCache]: Analyzing trace with hash 962335532, now seen corresponding path program 1 times [2023-12-16 06:26:30,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:30,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430192543] [2023-12-16 06:26:30,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:30,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:30,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:30,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:30,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:30,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430192543] [2023-12-16 06:26:30,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430192543] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:30,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:30,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:26:30,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548614677] [2023-12-16 06:26:30,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:30,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:26:30,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:30,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:26:30,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:26:30,395 INFO L87 Difference]: Start difference. First operand 6133 states and 8547 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) [2023-12-16 06:26:30,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:30,433 INFO L93 Difference]: Finished difference Result 17673 states and 24501 transitions. [2023-12-16 06:26:30,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:26:30,434 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 [2023-12-16 06:26:30,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:30,450 INFO L225 Difference]: With dead ends: 17673 [2023-12-16 06:26:30,450 INFO L226 Difference]: Without dead ends: 11639 [2023-12-16 06:26:30,484 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 [2023-12-16 06:26:30,484 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 64 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 340 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 [2023-12-16 06:26:30,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 340 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:26:30,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11639 states. [2023-12-16 06:26:30,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11639 to 11109. [2023-12-16 06:26:30,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11109 states, 11108 states have (on average 1.3745948865682391) internal successors, (15269), 11108 states have internal predecessors, (15269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:30,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11109 states to 11109 states and 15269 transitions. [2023-12-16 06:26:30,610 INFO L78 Accepts]: Start accepts. Automaton has 11109 states and 15269 transitions. Word has length 97 [2023-12-16 06:26:30,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:30,610 INFO L495 AbstractCegarLoop]: Abstraction has 11109 states and 15269 transitions. [2023-12-16 06:26:30,610 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) [2023-12-16 06:26:30,610 INFO L276 IsEmpty]: Start isEmpty. Operand 11109 states and 15269 transitions. [2023-12-16 06:26:30,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-16 06:26:30,610 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:30,611 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] [2023-12-16 06:26:30,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-12-16 06:26:30,611 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)] === [2023-12-16 06:26:30,611 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:30,611 INFO L85 PathProgramCache]: Analyzing trace with hash 171833001, now seen corresponding path program 1 times [2023-12-16 06:26:30,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:30,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128407852] [2023-12-16 06:26:30,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:30,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:30,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:30,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:30,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:30,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128407852] [2023-12-16 06:26:30,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128407852] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:30,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:30,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:26:30,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438107474] [2023-12-16 06:26:30,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:30,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:26:30,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:30,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:26:30,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:26:30,673 INFO L87 Difference]: Start difference. First operand 11109 states and 15269 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) [2023-12-16 06:26:30,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:30,735 INFO L93 Difference]: Finished difference Result 32073 states and 43743 transitions. [2023-12-16 06:26:30,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:26:30,736 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 [2023-12-16 06:26:30,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:30,764 INFO L225 Difference]: With dead ends: 32073 [2023-12-16 06:26:30,764 INFO L226 Difference]: Without dead ends: 21063 [2023-12-16 06:26:30,778 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 [2023-12-16 06:26:30,778 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 54 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 338 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 [2023-12-16 06:26:30,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 338 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:26:30,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21063 states. [2023-12-16 06:26:30,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21063 to 20005. [2023-12-16 06:26:30,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20005 states, 20004 states have (on average 1.3495800839832033) internal successors, (26997), 20004 states have internal predecessors, (26997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:31,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20005 states to 20005 states and 26997 transitions. [2023-12-16 06:26:31,006 INFO L78 Accepts]: Start accepts. Automaton has 20005 states and 26997 transitions. Word has length 98 [2023-12-16 06:26:31,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:31,006 INFO L495 AbstractCegarLoop]: Abstraction has 20005 states and 26997 transitions. [2023-12-16 06:26:31,006 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) [2023-12-16 06:26:31,006 INFO L276 IsEmpty]: Start isEmpty. Operand 20005 states and 26997 transitions. [2023-12-16 06:26:31,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-16 06:26:31,007 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:31,007 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] [2023-12-16 06:26:31,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-12-16 06:26:31,007 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)] === [2023-12-16 06:26:31,007 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:31,007 INFO L85 PathProgramCache]: Analyzing trace with hash 1861913153, now seen corresponding path program 1 times [2023-12-16 06:26:31,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:31,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364033268] [2023-12-16 06:26:31,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:31,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:31,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:31,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:31,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:31,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364033268] [2023-12-16 06:26:31,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364033268] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:31,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:31,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 06:26:31,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676429509] [2023-12-16 06:26:31,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:31,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 06:26:31,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:31,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 06:26:31,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 06:26:31,166 INFO L87 Difference]: Start difference. First operand 20005 states and 26997 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) [2023-12-16 06:26:31,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:31,264 INFO L93 Difference]: Finished difference Result 31015 states and 41651 transitions. [2023-12-16 06:26:31,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 06:26:31,265 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 [2023-12-16 06:26:31,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:31,312 INFO L225 Difference]: With dead ends: 31015 [2023-12-16 06:26:31,312 INFO L226 Difference]: Without dead ends: 31013 [2023-12-16 06:26:31,323 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 [2023-12-16 06:26:31,324 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 259 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 804 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 [2023-12-16 06:26:31,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 804 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:26:31,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31013 states. [2023-12-16 06:26:31,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31013 to 20485. [2023-12-16 06:26:31,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20485 states, 20484 states have (on average 1.3320152314001172) internal successors, (27285), 20484 states have internal predecessors, (27285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:31,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20485 states to 20485 states and 27285 transitions. [2023-12-16 06:26:31,598 INFO L78 Accepts]: Start accepts. Automaton has 20485 states and 27285 transitions. Word has length 99 [2023-12-16 06:26:31,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:31,599 INFO L495 AbstractCegarLoop]: Abstraction has 20485 states and 27285 transitions. [2023-12-16 06:26:31,599 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) [2023-12-16 06:26:31,599 INFO L276 IsEmpty]: Start isEmpty. Operand 20485 states and 27285 transitions. [2023-12-16 06:26:31,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-16 06:26:31,599 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:31,599 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] [2023-12-16 06:26:31,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-12-16 06:26:31,600 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)] === [2023-12-16 06:26:31,600 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:31,600 INFO L85 PathProgramCache]: Analyzing trace with hash -6167163, now seen corresponding path program 1 times [2023-12-16 06:26:31,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:31,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789272485] [2023-12-16 06:26:31,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:31,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:31,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:31,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:31,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:31,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789272485] [2023-12-16 06:26:31,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789272485] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:31,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:31,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:26:31,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358336795] [2023-12-16 06:26:31,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:31,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:26:31,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:31,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:26:31,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:26:31,715 INFO L87 Difference]: Start difference. First operand 20485 states and 27285 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) [2023-12-16 06:26:31,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:31,793 INFO L93 Difference]: Finished difference Result 41513 states and 55327 transitions. [2023-12-16 06:26:31,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:26:31,794 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 [2023-12-16 06:26:31,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:31,821 INFO L225 Difference]: With dead ends: 41513 [2023-12-16 06:26:31,821 INFO L226 Difference]: Without dead ends: 21127 [2023-12-16 06:26:31,840 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 [2023-12-16 06:26:31,840 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 87 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 280 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 [2023-12-16 06:26:31,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 280 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:26:31,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21127 states. [2023-12-16 06:26:32,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21127 to 21125. [2023-12-16 06:26:32,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21125 states, 21124 states have (on average 1.3151391781859496) internal successors, (27781), 21124 states have internal predecessors, (27781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:32,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21125 states to 21125 states and 27781 transitions. [2023-12-16 06:26:32,057 INFO L78 Accepts]: Start accepts. Automaton has 21125 states and 27781 transitions. Word has length 99 [2023-12-16 06:26:32,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:32,057 INFO L495 AbstractCegarLoop]: Abstraction has 21125 states and 27781 transitions. [2023-12-16 06:26:32,057 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) [2023-12-16 06:26:32,057 INFO L276 IsEmpty]: Start isEmpty. Operand 21125 states and 27781 transitions. [2023-12-16 06:26:32,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-12-16 06:26:32,060 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:32,060 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] [2023-12-16 06:26:32,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-12-16 06:26:32,060 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)] === [2023-12-16 06:26:32,061 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:32,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1453084349, now seen corresponding path program 1 times [2023-12-16 06:26:32,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:32,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426131062] [2023-12-16 06:26:32,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:32,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:32,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:32,239 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:32,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:32,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426131062] [2023-12-16 06:26:32,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426131062] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 06:26:32,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1538982013] [2023-12-16 06:26:32,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:32,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 06:26:32,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 06:26:32,243 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) [2023-12-16 06:26:32,270 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-16 06:26:32,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:32,421 INFO L262 TraceCheckSpWp]: Trace formula consists of 611 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-16 06:26:32,427 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 06:26:32,973 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:32,974 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 06:26:33,785 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:33,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1538982013] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 06:26:33,785 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-16 06:26:33,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 11] total 27 [2023-12-16 06:26:33,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598491000] [2023-12-16 06:26:33,786 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-16 06:26:33,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-16 06:26:33,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:33,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-16 06:26:33,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=647, Unknown=0, NotChecked=0, Total=756 [2023-12-16 06:26:33,787 INFO L87 Difference]: Start difference. First operand 21125 states and 27781 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) [2023-12-16 06:26:38,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:38,116 INFO L93 Difference]: Finished difference Result 189255 states and 245033 transitions. [2023-12-16 06:26:38,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2023-12-16 06:26:38,116 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 [2023-12-16 06:26:38,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:38,441 INFO L225 Difference]: With dead ends: 189255 [2023-12-16 06:26:38,441 INFO L226 Difference]: Without dead ends: 168229 [2023-12-16 06:26:38,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5221 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=3145, Invalid=12605, Unknown=0, NotChecked=0, Total=15750 [2023-12-16 06:26:38,508 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 6494 mSDsluCounter, 1768 mSDsCounter, 0 mSdLazyCounter, 1729 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6494 SdHoareTripleChecker+Valid, 1911 SdHoareTripleChecker+Invalid, 1766 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-16 06:26:38,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6494 Valid, 1911 Invalid, 1766 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1729 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-16 06:26:38,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168229 states. [2023-12-16 06:26:39,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168229 to 44891. [2023-12-16 06:26:39,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44891 states, 44890 states have (on average 1.306014702606371) internal successors, (58627), 44890 states have internal predecessors, (58627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:39,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44891 states to 44891 states and 58627 transitions. [2023-12-16 06:26:39,722 INFO L78 Accepts]: Start accepts. Automaton has 44891 states and 58627 transitions. Word has length 126 [2023-12-16 06:26:39,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:39,722 INFO L495 AbstractCegarLoop]: Abstraction has 44891 states and 58627 transitions. [2023-12-16 06:26:39,722 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) [2023-12-16 06:26:39,722 INFO L276 IsEmpty]: Start isEmpty. Operand 44891 states and 58627 transitions. [2023-12-16 06:26:39,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-12-16 06:26:39,731 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:39,731 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] [2023-12-16 06:26:39,740 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-16 06:26:39,936 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,SelfDestructingSolverStorable39 [2023-12-16 06:26:39,936 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)] === [2023-12-16 06:26:39,936 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:39,936 INFO L85 PathProgramCache]: Analyzing trace with hash 137547186, now seen corresponding path program 1 times [2023-12-16 06:26:39,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:39,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488768908] [2023-12-16 06:26:39,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:39,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:39,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:40,708 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:40,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:40,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488768908] [2023-12-16 06:26:40,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488768908] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 06:26:40,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [36510653] [2023-12-16 06:26:40,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:40,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 06:26:40,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 06:26:40,710 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) [2023-12-16 06:26:40,727 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-16 06:26:40,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:40,894 INFO L262 TraceCheckSpWp]: Trace formula consists of 613 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-16 06:26:40,898 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 06:26:41,210 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-16 06:26:41,210 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 06:26:41,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [36510653] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:41,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 06:26:41,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 17 [2023-12-16 06:26:41,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292044335] [2023-12-16 06:26:41,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:41,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 06:26:41,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:41,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 06:26:41,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2023-12-16 06:26:41,212 INFO L87 Difference]: Start difference. First operand 44891 states and 58627 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) [2023-12-16 06:26:41,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:41,810 INFO L93 Difference]: Finished difference Result 134499 states and 175693 transitions. [2023-12-16 06:26:41,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 06:26:41,811 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 [2023-12-16 06:26:41,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:41,942 INFO L225 Difference]: With dead ends: 134499 [2023-12-16 06:26:41,942 INFO L226 Difference]: Without dead ends: 89709 [2023-12-16 06:26:41,976 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 [2023-12-16 06:26:41,978 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 411 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 411 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 06:26:41,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [411 Valid, 479 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 06:26:42,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89709 states. [2023-12-16 06:26:42,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89709 to 44891. [2023-12-16 06:26:42,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44891 states, 44890 states have (on average 1.3059701492537314) internal successors, (58625), 44890 states have internal predecessors, (58625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:42,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44891 states to 44891 states and 58625 transitions. [2023-12-16 06:26:42,747 INFO L78 Accepts]: Start accepts. Automaton has 44891 states and 58625 transitions. Word has length 127 [2023-12-16 06:26:42,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:42,747 INFO L495 AbstractCegarLoop]: Abstraction has 44891 states and 58625 transitions. [2023-12-16 06:26:42,748 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) [2023-12-16 06:26:42,748 INFO L276 IsEmpty]: Start isEmpty. Operand 44891 states and 58625 transitions. [2023-12-16 06:26:42,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-16 06:26:42,853 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:42,853 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] [2023-12-16 06:26:42,876 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-16 06:26:43,062 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,SelfDestructingSolverStorable40 [2023-12-16 06:26:43,062 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)] === [2023-12-16 06:26:43,063 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:43,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1100659880, now seen corresponding path program 1 times [2023-12-16 06:26:43,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:43,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571031345] [2023-12-16 06:26:43,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:43,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:43,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:43,500 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:43,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:43,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571031345] [2023-12-16 06:26:43,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571031345] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 06:26:43,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1360294953] [2023-12-16 06:26:43,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:43,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 06:26:43,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 06:26:43,502 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) [2023-12-16 06:26:43,505 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-16 06:26:43,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:43,661 INFO L262 TraceCheckSpWp]: Trace formula consists of 613 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-16 06:26:43,664 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 06:26:44,274 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:44,274 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 06:26:45,133 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:45,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1360294953] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 06:26:45,134 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-16 06:26:45,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 28 [2023-12-16 06:26:45,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796231979] [2023-12-16 06:26:45,134 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-16 06:26:45,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-12-16 06:26:45,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:45,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-12-16 06:26:45,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=722, Unknown=0, NotChecked=0, Total=812 [2023-12-16 06:26:45,136 INFO L87 Difference]: Start difference. First operand 44891 states and 58625 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) Received shutdown request... [2023-12-16 06:27:01,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 210 states. [2023-12-16 06:27:01,052 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 06:27:01,052 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 06:27:01,055 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 474 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 235 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20815 ImplicationChecksByTransitivity, 14.6s TimeCoverageRelationStatistics Valid=7853, Invalid=48079, Unknown=0, NotChecked=0, Total=55932 [2023-12-16 06:27:01,055 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 6895 mSDsluCounter, 1265 mSDsCounter, 0 mSdLazyCounter, 2594 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6895 SdHoareTripleChecker+Valid, 1359 SdHoareTripleChecker+Invalid, 2669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 2594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-16 06:27:01,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6895 Valid, 1359 Invalid, 2669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 2594 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-16 06:27:01,063 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 11 remaining) [2023-12-16 06:27:01,071 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-16 06:27:01,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 06:27:01,269 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (44891states) and FLOYD_HOARE automaton (currently 210 states, 29 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 237 known predicates. [2023-12-16 06:27:01,272 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (9 of 11 remaining) [2023-12-16 06:27:01,272 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (8 of 11 remaining) [2023-12-16 06:27:01,272 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (7 of 11 remaining) [2023-12-16 06:27:01,272 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (6 of 11 remaining) [2023-12-16 06:27:01,273 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (5 of 11 remaining) [2023-12-16 06:27:01,273 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (4 of 11 remaining) [2023-12-16 06:27:01,273 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (3 of 11 remaining) [2023-12-16 06:27:01,273 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION (2 of 11 remaining) [2023-12-16 06:27:01,273 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION (1 of 11 remaining) [2023-12-16 06:27:01,273 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION (0 of 11 remaining) [2023-12-16 06:27:01,277 INFO L445 BasicCegarLoop]: Path program 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] [2023-12-16 06:27:01,279 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 06:27:01,280 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 06:27:01 BoogieIcfgContainer [2023-12-16 06:27:01,280 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 06:27:01,281 INFO L158 Benchmark]: Toolchain (without parser) took 56630.29ms. Allocated memory was 238.0MB in the beginning and 3.1GB in the end (delta: 2.8GB). Free memory was 180.8MB in the beginning and 1.8GB in the end (delta: -1.7GB). Peak memory consumption was 1.2GB. Max. memory is 8.0GB. [2023-12-16 06:27:01,281 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 198.2MB. Free memory was 145.6MB in the beginning and 145.5MB in the end (delta: 66.8kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 06:27:01,281 INFO L158 Benchmark]: CACSL2BoogieTranslator took 561.67ms. Allocated memory is still 238.0MB. Free memory was 180.3MB in the beginning and 129.4MB in the end (delta: 50.9MB). Peak memory consumption was 50.3MB. Max. memory is 8.0GB. [2023-12-16 06:27:01,281 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.20ms. Allocated memory is still 238.0MB. Free memory was 129.4MB in the beginning and 121.5MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2023-12-16 06:27:01,281 INFO L158 Benchmark]: Boogie Preprocessor took 166.86ms. Allocated memory is still 238.0MB. Free memory was 121.5MB in the beginning and 197.4MB in the end (delta: -75.9MB). Peak memory consumption was 17.1MB. Max. memory is 8.0GB. [2023-12-16 06:27:01,281 INFO L158 Benchmark]: RCFGBuilder took 1117.82ms. Allocated memory is still 238.0MB. Free memory was 197.4MB in the beginning and 194.0MB in the end (delta: 3.4MB). Peak memory consumption was 115.7MB. Max. memory is 8.0GB. [2023-12-16 06:27:01,281 INFO L158 Benchmark]: TraceAbstraction took 54707.35ms. Allocated memory was 238.0MB in the beginning and 3.1GB in the end (delta: 2.8GB). Free memory was 193.2MB in the beginning and 1.8GB in the end (delta: -1.6GB). Peak memory consumption was 1.2GB. Max. memory is 8.0GB. [2023-12-16 06:27:01,282 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 198.2MB. Free memory was 145.6MB in the beginning and 145.5MB in the end (delta: 66.8kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 561.67ms. Allocated memory is still 238.0MB. Free memory was 180.3MB in the beginning and 129.4MB in the end (delta: 50.9MB). Peak memory consumption was 50.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 72.20ms. Allocated memory is still 238.0MB. Free memory was 129.4MB in the beginning and 121.5MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 166.86ms. Allocated memory is still 238.0MB. Free memory was 121.5MB in the beginning and 197.4MB in the end (delta: -75.9MB). Peak memory consumption was 17.1MB. Max. memory is 8.0GB. * RCFGBuilder took 1117.82ms. Allocated memory is still 238.0MB. Free memory was 197.4MB in the beginning and 194.0MB in the end (delta: 3.4MB). Peak memory consumption was 115.7MB. Max. memory is 8.0GB. * TraceAbstraction took 54707.35ms. Allocated memory was 238.0MB in the beginning and 3.1GB in the end (delta: 2.8GB). Free memory was 193.2MB in the beginning and 1.8GB in the end (delta: -1.6GB). Peak memory consumption was 1.2GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 500]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 500). Cancelled while NwaCegarLoop was constructing difference of abstraction (44891states) and FLOYD_HOARE automaton (currently 210 states, 29 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 237 known predicates. - TimeoutResultAtElement [Line: 795]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 795). Cancelled while NwaCegarLoop was constructing difference of abstraction (44891states) and FLOYD_HOARE automaton (currently 210 states, 29 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 237 known predicates. - TimeoutResultAtElement [Line: 885]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 885). Cancelled while NwaCegarLoop was constructing difference of abstraction (44891states) and FLOYD_HOARE automaton (currently 210 states, 29 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 237 known predicates. - TimeoutResultAtElement [Line: 934]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 934). Cancelled while NwaCegarLoop was constructing difference of abstraction (44891states) and FLOYD_HOARE automaton (currently 210 states, 29 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 237 known predicates. - TimeoutResultAtElement [Line: 1052]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 1052). Cancelled while NwaCegarLoop was constructing difference of abstraction (44891states) and FLOYD_HOARE automaton (currently 210 states, 29 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 237 known predicates. - TimeoutResultAtElement [Line: 1101]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 1101). Cancelled while NwaCegarLoop was constructing difference of abstraction (44891states) and FLOYD_HOARE automaton (currently 210 states, 29 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 237 known predicates. - TimeoutResultAtElement [Line: 1177]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 1177). Cancelled while NwaCegarLoop was constructing difference of abstraction (44891states) and FLOYD_HOARE automaton (currently 210 states, 29 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 237 known predicates. - TimeoutResultAtElement [Line: 1357]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 1357). Cancelled while NwaCegarLoop was constructing difference of abstraction (44891states) and FLOYD_HOARE automaton (currently 210 states, 29 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 237 known predicates. - TimeoutResultAtElement [Line: 1406]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 1406). Cancelled while NwaCegarLoop was constructing difference of abstraction (44891states) and FLOYD_HOARE automaton (currently 210 states, 29 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 237 known predicates. - TimeoutResultAtElement [Line: 1483]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 1483). Cancelled while NwaCegarLoop was constructing difference of abstraction (44891states) and FLOYD_HOARE automaton (currently 210 states, 29 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 237 known predicates. - TimeoutResultAtElement [Line: 1623]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 1623). Cancelled while NwaCegarLoop was constructing difference of abstraction (44891states) and FLOYD_HOARE automaton (currently 210 states, 29 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 237 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 356 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 54.7s, OverallIterations: 42, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 36.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 46762 SdHoareTripleChecker+Valid, 11.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 46762 mSDsluCounter, 48871 SdHoareTripleChecker+Invalid, 9.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 39378 mSDsCounter, 233 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 24350 IncrementalHoareTripleChecker+Invalid, 24583 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 233 mSolverCounterUnsat, 9493 mSDtfsCounter, 24350 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1571 GetRequests, 646 SyntacticMatches, 0 SemanticMatches, 924 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27925 ImplicationChecksByTransitivity, 24.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44891occurred in iteration=40, InterpolantAutomatonStates: 550, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.3s AutomataMinimizationTime, 41 MinimizatonAttempts, 191598 StatesRemovedByMinimization, 38 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 12.2s InterpolantComputationTime, 3673 NumberOfCodeBlocks, 3673 NumberOfCodeBlocksAsserted, 45 NumberOfCheckSat, 3880 ConstructedInterpolants, 0 QuantifiedInterpolants, 37562 SizeOfPredicates, 20 NumberOfNonLiveVariables, 1837 ConjunctsInSsa, 51 ConjunctsInUnsatCore, 47 InterpolantComputations, 40 PerfectInterpolantSequences, 101/136 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown