/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.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 13:44:55,654 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 13:44:55,733 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-21 13:44:55,737 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 13:44:55,738 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 13:44:55,774 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 13:44:55,774 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 13:44:55,775 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 13:44:55,775 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 13:44:55,779 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 13:44:55,779 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 13:44:55,779 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 13:44:55,780 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 13:44:55,781 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 13:44:55,781 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 13:44:55,781 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 13:44:55,781 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 13:44:55,782 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 13:44:55,782 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-21 13:44:55,783 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 13:44:55,783 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 13:44:55,783 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 13:44:55,784 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 13:44:55,784 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 13:44:55,784 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 13:44:55,784 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 13:44:55,785 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 13:44:55,785 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 13:44:55,785 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 13:44:55,786 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 13:44:55,786 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 13:44:55,787 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 13:44:55,787 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 13:44:55,787 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 13:44:55,787 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 13:44:55,787 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 13:44:55,787 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-21 13:44:55,787 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-21 13:44:55,788 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 13:44:55,788 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 13:44:55,788 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 13:44:55,788 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 13:44:55,788 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 13:44:55,788 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-21 13:44:56,023 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 13:44:56,047 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 13:44:56,049 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 13:44:56,050 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 13:44:56,050 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 13:44:56,051 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2023-12-21 13:44:57,211 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 13:44:57,411 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 13:44:57,412 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2023-12-21 13:44:57,428 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d87ffb45/d99aac162b904fc0bf70b72ad2b5147f/FLAG154aac5d2 [2023-12-21 13:44:57,446 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d87ffb45/d99aac162b904fc0bf70b72ad2b5147f [2023-12-21 13:44:57,448 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 13:44:57,450 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 13:44:57,452 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 13:44:57,452 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 13:44:57,456 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 13:44:57,456 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 01:44:57" (1/1) ... [2023-12-21 13:44:57,457 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@657a3553 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:44:57, skipping insertion in model container [2023-12-21 13:44:57,457 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 01:44:57" (1/1) ... [2023-12-21 13:44:57,516 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 13:44:57,755 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.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[7117,7130] [2023-12-21 13:44:57,787 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.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[9784,9797] [2023-12-21 13:44:57,800 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.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[10875,10888] [2023-12-21 13:44:57,804 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[11481,11494] [2023-12-21 13:44:57,823 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.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[12900,12913] [2023-12-21 13:44:57,832 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.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[13506,13519] [2023-12-21 13:44:57,848 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.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[14435,14448] [2023-12-21 13:44:57,891 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 13:44:57,912 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 13:44:57,948 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.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[7117,7130] [2023-12-21 13:44:57,957 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.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[9784,9797] [2023-12-21 13:44:57,963 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.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[10875,10888] [2023-12-21 13:44:57,965 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.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[11481,11494] [2023-12-21 13:44:57,969 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.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[12900,12913] [2023-12-21 13:44:57,972 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.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[13506,13519] [2023-12-21 13:44:57,975 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.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[14435,14448] [2023-12-21 13:44:57,999 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 13:44:58,013 INFO L206 MainTranslator]: Completed translation [2023-12-21 13:44:58,014 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:44:58 WrapperNode [2023-12-21 13:44:58,014 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 13:44:58,015 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 13:44:58,015 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 13:44:58,015 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 13:44:58,021 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:44:58" (1/1) ... [2023-12-21 13:44:58,034 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:44:58" (1/1) ... [2023-12-21 13:44:58,093 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1044 [2023-12-21 13:44:58,093 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 13:44:58,094 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 13:44:58,094 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 13:44:58,094 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 13:44:58,111 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:44:58" (1/1) ... [2023-12-21 13:44:58,111 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:44:58" (1/1) ... [2023-12-21 13:44:58,116 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:44:58" (1/1) ... [2023-12-21 13:44:58,135 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-21 13:44:58,135 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:44:58" (1/1) ... [2023-12-21 13:44:58,136 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:44:58" (1/1) ... [2023-12-21 13:44:58,162 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:44:58" (1/1) ... [2023-12-21 13:44:58,167 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:44:58" (1/1) ... [2023-12-21 13:44:58,170 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:44:58" (1/1) ... [2023-12-21 13:44:58,173 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:44:58" (1/1) ... [2023-12-21 13:44:58,178 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 13:44:58,178 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 13:44:58,179 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 13:44:58,179 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 13:44:58,179 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:44:58" (1/1) ... [2023-12-21 13:44:58,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 13:44:58,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:44:58,253 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-21 13:44:58,277 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-21 13:44:58,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 13:44:58,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-21 13:44:58,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 13:44:58,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 13:44:58,393 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 13:44:58,395 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 13:44:59,131 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 13:44:59,171 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 13:44:59,171 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-21 13:44:59,172 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 01:44:59 BoogieIcfgContainer [2023-12-21 13:44:59,172 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 13:44:59,174 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 13:44:59,174 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 13:44:59,177 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 13:44:59,177 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 01:44:57" (1/3) ... [2023-12-21 13:44:59,179 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b75b94e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 01:44:59, skipping insertion in model container [2023-12-21 13:44:59,180 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:44:58" (2/3) ... [2023-12-21 13:44:59,180 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b75b94e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 01:44:59, skipping insertion in model container [2023-12-21 13:44:59,181 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 01:44:59" (3/3) ... [2023-12-21 13:44:59,182 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2023-12-21 13:44:59,197 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 13:44:59,198 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2023-12-21 13:44:59,254 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 13:44:59,260 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;@5fc404fb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 13:44:59,260 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-12-21 13:44:59,265 INFO L276 IsEmpty]: Start isEmpty. Operand has 204 states, 196 states have (on average 1.8316326530612246) internal successors, (359), 203 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:44:59,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-21 13:44:59,277 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:44:59,278 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] [2023-12-21 13:44:59,278 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:44:59,284 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:44:59,284 INFO L85 PathProgramCache]: Analyzing trace with hash -114756949, now seen corresponding path program 1 times [2023-12-21 13:44:59,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:44:59,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217048621] [2023-12-21 13:44:59,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:44:59,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:44:59,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:44:59,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:44:59,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:44:59,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217048621] [2023-12-21 13:44:59,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217048621] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:44:59,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:44:59,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 13:44:59,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906925880] [2023-12-21 13:44:59,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:44:59,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 13:44:59,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:44:59,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 13:44:59,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 13:44:59,763 INFO L87 Difference]: Start difference. First operand has 204 states, 196 states have (on average 1.8316326530612246) internal successors, (359), 203 states have internal predecessors, (359), 0 states have call successors, (0), 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 9.0) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:00,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:45:00,005 INFO L93 Difference]: Finished difference Result 333 states and 563 transitions. [2023-12-21 13:45:00,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 13:45:00,007 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 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 45 [2023-12-21 13:45:00,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:45:00,022 INFO L225 Difference]: With dead ends: 333 [2023-12-21 13:45:00,022 INFO L226 Difference]: Without dead ends: 182 [2023-12-21 13:45:00,025 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 [2023-12-21 13:45:00,027 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 849 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 849 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:45:00,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [849 Valid, 238 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 13:45:00,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2023-12-21 13:45:00,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2023-12-21 13:45:00,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 175 states have (on average 1.28) internal successors, (224), 181 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:00,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 224 transitions. [2023-12-21 13:45:00,082 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 224 transitions. Word has length 45 [2023-12-21 13:45:00,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:45:00,083 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 224 transitions. [2023-12-21 13:45:00,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:00,083 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 224 transitions. [2023-12-21 13:45:00,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-12-21 13:45:00,089 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:45:00,089 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] [2023-12-21 13:45:00,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-21 13:45:00,090 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:45:00,091 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:45:00,091 INFO L85 PathProgramCache]: Analyzing trace with hash -1679415330, now seen corresponding path program 1 times [2023-12-21 13:45:00,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:45:00,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222294029] [2023-12-21 13:45:00,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:45:00,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:45:00,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:45:00,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:45:00,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:45:00,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222294029] [2023-12-21 13:45:00,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222294029] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:45:00,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:45:00,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 13:45:00,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29728843] [2023-12-21 13:45:00,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:45:00,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 13:45:00,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:45:00,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 13:45:00,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 13:45:00,289 INFO L87 Difference]: Start difference. First operand 182 states and 224 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:00,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:45:00,415 INFO L93 Difference]: Finished difference Result 305 states and 386 transitions. [2023-12-21 13:45:00,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 13:45:00,415 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 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 46 [2023-12-21 13:45:00,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:45:00,418 INFO L225 Difference]: With dead ends: 305 [2023-12-21 13:45:00,418 INFO L226 Difference]: Without dead ends: 163 [2023-12-21 13:45:00,419 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 [2023-12-21 13:45:00,420 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 579 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 579 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:45:00,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [579 Valid, 126 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 13:45:00,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2023-12-21 13:45:00,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2023-12-21 13:45:00,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 156 states have (on average 1.294871794871795) internal successors, (202), 162 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:00,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 202 transitions. [2023-12-21 13:45:00,432 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 202 transitions. Word has length 46 [2023-12-21 13:45:00,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:45:00,433 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 202 transitions. [2023-12-21 13:45:00,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:00,433 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 202 transitions. [2023-12-21 13:45:00,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-12-21 13:45:00,434 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:45:00,434 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] [2023-12-21 13:45:00,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-21 13:45:00,435 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:45:00,435 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:45:00,435 INFO L85 PathProgramCache]: Analyzing trace with hash -577877594, now seen corresponding path program 1 times [2023-12-21 13:45:00,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:45:00,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505340532] [2023-12-21 13:45:00,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:45:00,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:45:00,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:45:00,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:45:00,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:45:00,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505340532] [2023-12-21 13:45:00,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505340532] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:45:00,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:45:00,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 13:45:00,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114061469] [2023-12-21 13:45:00,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:45:00,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 13:45:00,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:45:00,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 13:45:00,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 13:45:00,618 INFO L87 Difference]: Start difference. First operand 163 states and 202 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:00,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:45:00,726 INFO L93 Difference]: Finished difference Result 286 states and 363 transitions. [2023-12-21 13:45:00,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 13:45:00,730 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 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 47 [2023-12-21 13:45:00,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:45:00,732 INFO L225 Difference]: With dead ends: 286 [2023-12-21 13:45:00,735 INFO L226 Difference]: Without dead ends: 155 [2023-12-21 13:45:00,736 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 [2023-12-21 13:45:00,737 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 537 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 537 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:45:00,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [537 Valid, 125 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 13:45:00,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2023-12-21 13:45:00,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2023-12-21 13:45:00,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 148 states have (on average 1.2972972972972974) internal successors, (192), 154 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:00,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 192 transitions. [2023-12-21 13:45:00,744 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 192 transitions. Word has length 47 [2023-12-21 13:45:00,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:45:00,747 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 192 transitions. [2023-12-21 13:45:00,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:00,748 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 192 transitions. [2023-12-21 13:45:00,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-12-21 13:45:00,748 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:45:00,749 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] [2023-12-21 13:45:00,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-21 13:45:00,749 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:45:00,749 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:45:00,750 INFO L85 PathProgramCache]: Analyzing trace with hash -990553041, now seen corresponding path program 1 times [2023-12-21 13:45:00,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:45:00,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698977199] [2023-12-21 13:45:00,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:45:00,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:45:00,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:45:01,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:45:01,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:45:01,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698977199] [2023-12-21 13:45:01,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698977199] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:45:01,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:45:01,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 13:45:01,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552785034] [2023-12-21 13:45:01,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:45:01,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 13:45:01,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:45:01,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 13:45:01,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 13:45:01,067 INFO L87 Difference]: Start difference. First operand 155 states and 192 transitions. Second operand has 8 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:01,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:45:01,555 INFO L93 Difference]: Finished difference Result 330 states and 433 transitions. [2023-12-21 13:45:01,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 13:45:01,555 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 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 48 [2023-12-21 13:45:01,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:45:01,557 INFO L225 Difference]: With dead ends: 330 [2023-12-21 13:45:01,557 INFO L226 Difference]: Without dead ends: 325 [2023-12-21 13:45:01,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-12-21 13:45:01,558 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 733 mSDsluCounter, 685 mSDsCounter, 0 mSdLazyCounter, 572 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 733 SdHoareTripleChecker+Valid, 830 SdHoareTripleChecker+Invalid, 576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 13:45:01,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [733 Valid, 830 Invalid, 576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 572 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 13:45:01,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2023-12-21 13:45:01,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 155. [2023-12-21 13:45:01,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 148 states have (on average 1.2905405405405406) internal successors, (191), 154 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:01,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 191 transitions. [2023-12-21 13:45:01,565 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 191 transitions. Word has length 48 [2023-12-21 13:45:01,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:45:01,566 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 191 transitions. [2023-12-21 13:45:01,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:01,566 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 191 transitions. [2023-12-21 13:45:01,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-12-21 13:45:01,567 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:45:01,567 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:45:01,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-21 13:45:01,567 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:45:01,567 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:45:01,567 INFO L85 PathProgramCache]: Analyzing trace with hash 921644061, now seen corresponding path program 1 times [2023-12-21 13:45:01,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:45:01,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173984648] [2023-12-21 13:45:01,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:45:01,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:45:01,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:45:01,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:45:01,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:45:01,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173984648] [2023-12-21 13:45:01,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173984648] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:45:01,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:45:01,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 13:45:01,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591096848] [2023-12-21 13:45:01,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:45:01,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 13:45:01,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:45:01,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 13:45:01,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 13:45:01,810 INFO L87 Difference]: Start difference. First operand 155 states and 191 transitions. Second operand has 8 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:02,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:45:02,244 INFO L93 Difference]: Finished difference Result 389 states and 517 transitions. [2023-12-21 13:45:02,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 13:45:02,244 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 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 48 [2023-12-21 13:45:02,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:45:02,246 INFO L225 Difference]: With dead ends: 389 [2023-12-21 13:45:02,246 INFO L226 Difference]: Without dead ends: 329 [2023-12-21 13:45:02,246 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 [2023-12-21 13:45:02,247 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 755 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 755 SdHoareTripleChecker+Valid, 824 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 13:45:02,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [755 Valid, 824 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 567 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 13:45:02,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2023-12-21 13:45:02,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 155. [2023-12-21 13:45:02,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 148 states have (on average 1.2837837837837838) internal successors, (190), 154 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:02,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 190 transitions. [2023-12-21 13:45:02,253 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 190 transitions. Word has length 48 [2023-12-21 13:45:02,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:45:02,253 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 190 transitions. [2023-12-21 13:45:02,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:02,253 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 190 transitions. [2023-12-21 13:45:02,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-12-21 13:45:02,254 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:45:02,254 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] [2023-12-21 13:45:02,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-21 13:45:02,254 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:45:02,255 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:45:02,255 INFO L85 PathProgramCache]: Analyzing trace with hash -528561187, now seen corresponding path program 1 times [2023-12-21 13:45:02,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:45:02,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854779132] [2023-12-21 13:45:02,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:45:02,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:45:02,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:45:02,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:45:02,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:45:02,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854779132] [2023-12-21 13:45:02,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854779132] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:45:02,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:45:02,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 13:45:02,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375664131] [2023-12-21 13:45:02,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:45:02,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 13:45:02,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:45:02,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 13:45:02,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-21 13:45:02,469 INFO L87 Difference]: Start difference. First operand 155 states and 190 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:02,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:45:02,705 INFO L93 Difference]: Finished difference Result 310 states and 390 transitions. [2023-12-21 13:45:02,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 13:45:02,708 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 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 48 [2023-12-21 13:45:02,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:45:02,710 INFO L225 Difference]: With dead ends: 310 [2023-12-21 13:45:02,710 INFO L226 Difference]: Without dead ends: 227 [2023-12-21 13:45:02,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2023-12-21 13:45:02,716 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 582 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 582 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 13:45:02,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [582 Valid, 371 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 13:45:02,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2023-12-21 13:45:02,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 155. [2023-12-21 13:45:02,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 148 states have (on average 1.277027027027027) internal successors, (189), 154 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:02,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 189 transitions. [2023-12-21 13:45:02,722 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 189 transitions. Word has length 48 [2023-12-21 13:45:02,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:45:02,723 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 189 transitions. [2023-12-21 13:45:02,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:02,723 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 189 transitions. [2023-12-21 13:45:02,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-12-21 13:45:02,724 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:45:02,724 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] [2023-12-21 13:45:02,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-21 13:45:02,724 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:45:02,725 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:45:02,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1923049146, now seen corresponding path program 1 times [2023-12-21 13:45:02,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:45:02,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423225257] [2023-12-21 13:45:02,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:45:02,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:45:02,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:45:03,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:45:03,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:45:03,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423225257] [2023-12-21 13:45:03,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423225257] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:45:03,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:45:03,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-21 13:45:03,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929238090] [2023-12-21 13:45:03,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:45:03,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-21 13:45:03,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:45:03,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-21 13:45:03,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-12-21 13:45:03,280 INFO L87 Difference]: Start difference. First operand 155 states and 189 transitions. Second operand has 13 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 12 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:03,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:45:03,993 INFO L93 Difference]: Finished difference Result 372 states and 468 transitions. [2023-12-21 13:45:03,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 13:45:03,994 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 12 states have internal predecessors, (50), 0 states have call successors, (0), 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 50 [2023-12-21 13:45:03,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:45:03,995 INFO L225 Difference]: With dead ends: 372 [2023-12-21 13:45:03,995 INFO L226 Difference]: Without dead ends: 368 [2023-12-21 13:45:03,996 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2023-12-21 13:45:03,996 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 855 mSDsluCounter, 1507 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 855 SdHoareTripleChecker+Valid, 1728 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 13:45:03,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [855 Valid, 1728 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 13:45:03,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2023-12-21 13:45:04,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 151. [2023-12-21 13:45:04,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 145 states have (on average 1.2758620689655173) internal successors, (185), 150 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:04,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 185 transitions. [2023-12-21 13:45:04,001 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 185 transitions. Word has length 50 [2023-12-21 13:45:04,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:45:04,001 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 185 transitions. [2023-12-21 13:45:04,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 12 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:04,001 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 185 transitions. [2023-12-21 13:45:04,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-12-21 13:45:04,002 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:45:04,002 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] [2023-12-21 13:45:04,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-21 13:45:04,002 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:45:04,002 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:45:04,002 INFO L85 PathProgramCache]: Analyzing trace with hash -297239348, now seen corresponding path program 1 times [2023-12-21 13:45:04,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:45:04,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297060603] [2023-12-21 13:45:04,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:45:04,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:45:04,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:45:04,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:45:04,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:45:04,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297060603] [2023-12-21 13:45:04,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297060603] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:45:04,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:45:04,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-21 13:45:04,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552900975] [2023-12-21 13:45:04,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:45:04,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-21 13:45:04,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:45:04,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-21 13:45:04,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-12-21 13:45:04,507 INFO L87 Difference]: Start difference. First operand 151 states and 185 transitions. Second operand has 13 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 12 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:05,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:45:05,133 INFO L93 Difference]: Finished difference Result 414 states and 530 transitions. [2023-12-21 13:45:05,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-21 13:45:05,134 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 12 states have internal predecessors, (50), 0 states have call successors, (0), 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 50 [2023-12-21 13:45:05,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:45:05,135 INFO L225 Difference]: With dead ends: 414 [2023-12-21 13:45:05,135 INFO L226 Difference]: Without dead ends: 367 [2023-12-21 13:45:05,136 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=158, Invalid=492, Unknown=0, NotChecked=0, Total=650 [2023-12-21 13:45:05,136 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 1351 mSDsluCounter, 847 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1351 SdHoareTripleChecker+Valid, 1006 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 13:45:05,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1351 Valid, 1006 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 13:45:05,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2023-12-21 13:45:05,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 147. [2023-12-21 13:45:05,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 142 states have (on average 1.267605633802817) internal successors, (180), 146 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:05,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 180 transitions. [2023-12-21 13:45:05,141 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 180 transitions. Word has length 50 [2023-12-21 13:45:05,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:45:05,141 INFO L495 AbstractCegarLoop]: Abstraction has 147 states and 180 transitions. [2023-12-21 13:45:05,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 12 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:05,141 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 180 transitions. [2023-12-21 13:45:05,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-12-21 13:45:05,142 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:45:05,142 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] [2023-12-21 13:45:05,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-21 13:45:05,142 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:45:05,143 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:45:05,143 INFO L85 PathProgramCache]: Analyzing trace with hash -2077756496, now seen corresponding path program 1 times [2023-12-21 13:45:05,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:45:05,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141620381] [2023-12-21 13:45:05,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:45:05,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:45:05,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:45:05,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:45:05,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:45:05,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141620381] [2023-12-21 13:45:05,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141620381] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:45:05,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:45:05,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-21 13:45:05,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5472967] [2023-12-21 13:45:05,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:45:05,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-21 13:45:05,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:45:05,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-21 13:45:05,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-12-21 13:45:05,606 INFO L87 Difference]: Start difference. First operand 147 states and 180 transitions. Second operand has 13 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 12 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:06,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:45:06,181 INFO L93 Difference]: Finished difference Result 408 states and 536 transitions. [2023-12-21 13:45:06,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 13:45:06,182 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 12 states have internal predecessors, (50), 0 states have call successors, (0), 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 50 [2023-12-21 13:45:06,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:45:06,183 INFO L225 Difference]: With dead ends: 408 [2023-12-21 13:45:06,183 INFO L226 Difference]: Without dead ends: 354 [2023-12-21 13:45:06,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2023-12-21 13:45:06,184 INFO L413 NwaCegarLoop]: 245 mSDtfsCounter, 970 mSDsluCounter, 1656 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 970 SdHoareTripleChecker+Valid, 1901 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 13:45:06,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [970 Valid, 1901 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 13:45:06,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2023-12-21 13:45:06,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 136. [2023-12-21 13:45:06,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 132 states have (on average 1.2651515151515151) internal successors, (167), 135 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:06,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 167 transitions. [2023-12-21 13:45:06,188 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 167 transitions. Word has length 50 [2023-12-21 13:45:06,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:45:06,189 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 167 transitions. [2023-12-21 13:45:06,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 12 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:06,189 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 167 transitions. [2023-12-21 13:45:06,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-21 13:45:06,189 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:45:06,189 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] [2023-12-21 13:45:06,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-21 13:45:06,190 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:45:06,190 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:45:06,190 INFO L85 PathProgramCache]: Analyzing trace with hash 200492003, now seen corresponding path program 1 times [2023-12-21 13:45:06,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:45:06,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214926664] [2023-12-21 13:45:06,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:45:06,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:45:06,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:45:06,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:45:06,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:45:06,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214926664] [2023-12-21 13:45:06,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214926664] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:45:06,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:45:06,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 13:45:06,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43852165] [2023-12-21 13:45:06,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:45:06,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 13:45:06,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:45:06,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 13:45:06,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 13:45:06,383 INFO L87 Difference]: Start difference. First operand 136 states and 167 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:06,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:45:06,685 INFO L93 Difference]: Finished difference Result 221 states and 275 transitions. [2023-12-21 13:45:06,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 13:45:06,685 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2023-12-21 13:45:06,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:45:06,686 INFO L225 Difference]: With dead ends: 221 [2023-12-21 13:45:06,686 INFO L226 Difference]: Without dead ends: 214 [2023-12-21 13:45:06,687 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 [2023-12-21 13:45:06,687 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 513 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 513 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 13:45:06,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [513 Valid, 579 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 13:45:06,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2023-12-21 13:45:06,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 136. [2023-12-21 13:45:06,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 132 states have (on average 1.2575757575757576) internal successors, (166), 135 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:06,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 166 transitions. [2023-12-21 13:45:06,690 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 166 transitions. Word has length 51 [2023-12-21 13:45:06,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:45:06,690 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 166 transitions. [2023-12-21 13:45:06,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:06,691 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 166 transitions. [2023-12-21 13:45:06,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-21 13:45:06,691 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:45:06,691 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] [2023-12-21 13:45:06,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-21 13:45:06,691 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:45:06,692 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:45:06,692 INFO L85 PathProgramCache]: Analyzing trace with hash -336264989, now seen corresponding path program 1 times [2023-12-21 13:45:06,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:45:06,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721173374] [2023-12-21 13:45:06,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:45:06,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:45:06,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:45:06,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:45:06,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:45:06,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721173374] [2023-12-21 13:45:06,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721173374] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:45:06,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:45:06,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 13:45:06,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732029898] [2023-12-21 13:45:06,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:45:06,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 13:45:06,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:45:06,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 13:45:06,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 13:45:06,857 INFO L87 Difference]: Start difference. First operand 136 states and 166 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:07,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:45:07,201 INFO L93 Difference]: Finished difference Result 279 states and 358 transitions. [2023-12-21 13:45:07,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 13:45:07,201 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2023-12-21 13:45:07,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:45:07,202 INFO L225 Difference]: With dead ends: 279 [2023-12-21 13:45:07,202 INFO L226 Difference]: Without dead ends: 218 [2023-12-21 13:45:07,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2023-12-21 13:45:07,203 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 603 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 603 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 13:45:07,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [603 Valid, 544 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 13:45:07,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2023-12-21 13:45:07,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 136. [2023-12-21 13:45:07,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 132 states have (on average 1.25) internal successors, (165), 135 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:07,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 165 transitions. [2023-12-21 13:45:07,206 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 165 transitions. Word has length 51 [2023-12-21 13:45:07,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:45:07,206 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 165 transitions. [2023-12-21 13:45:07,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:07,207 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 165 transitions. [2023-12-21 13:45:07,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-21 13:45:07,207 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:45:07,207 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] [2023-12-21 13:45:07,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-21 13:45:07,207 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:45:07,208 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:45:07,208 INFO L85 PathProgramCache]: Analyzing trace with hash 91025507, now seen corresponding path program 1 times [2023-12-21 13:45:07,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:45:07,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665153142] [2023-12-21 13:45:07,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:45:07,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:45:07,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:45:07,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:45:07,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:45:07,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665153142] [2023-12-21 13:45:07,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665153142] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:45:07,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:45:07,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 13:45:07,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773835460] [2023-12-21 13:45:07,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:45:07,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 13:45:07,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:45:07,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 13:45:07,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-21 13:45:07,524 INFO L87 Difference]: Start difference. First operand 136 states and 165 transitions. Second operand has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 10 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:08,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:45:08,259 INFO L93 Difference]: Finished difference Result 348 states and 453 transitions. [2023-12-21 13:45:08,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-21 13:45:08,259 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 10 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2023-12-21 13:45:08,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:45:08,261 INFO L225 Difference]: With dead ends: 348 [2023-12-21 13:45:08,261 INFO L226 Difference]: Without dead ends: 341 [2023-12-21 13:45:08,261 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=193, Invalid=509, Unknown=0, NotChecked=0, Total=702 [2023-12-21 13:45:08,262 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 1093 mSDsluCounter, 698 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1093 SdHoareTripleChecker+Valid, 905 SdHoareTripleChecker+Invalid, 749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 13:45:08,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1093 Valid, 905 Invalid, 749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 13:45:08,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2023-12-21 13:45:08,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 140. [2023-12-21 13:45:08,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 136 states have (on average 1.2426470588235294) internal successors, (169), 139 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:08,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 169 transitions. [2023-12-21 13:45:08,267 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 169 transitions. Word has length 51 [2023-12-21 13:45:08,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:45:08,267 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 169 transitions. [2023-12-21 13:45:08,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 10 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:08,267 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 169 transitions. [2023-12-21 13:45:08,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-21 13:45:08,268 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:45:08,268 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] [2023-12-21 13:45:08,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-21 13:45:08,268 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:45:08,268 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:45:08,268 INFO L85 PathProgramCache]: Analyzing trace with hash 459016432, now seen corresponding path program 1 times [2023-12-21 13:45:08,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:45:08,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849662015] [2023-12-21 13:45:08,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:45:08,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:45:08,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:45:08,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:45:08,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:45:08,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849662015] [2023-12-21 13:45:08,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849662015] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:45:08,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:45:08,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 13:45:08,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606328731] [2023-12-21 13:45:08,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:45:08,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 13:45:08,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:45:08,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 13:45:08,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 13:45:08,432 INFO L87 Difference]: Start difference. First operand 140 states and 169 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:08,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:45:08,762 INFO L93 Difference]: Finished difference Result 221 states and 272 transitions. [2023-12-21 13:45:08,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 13:45:08,763 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2023-12-21 13:45:08,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:45:08,764 INFO L225 Difference]: With dead ends: 221 [2023-12-21 13:45:08,764 INFO L226 Difference]: Without dead ends: 214 [2023-12-21 13:45:08,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2023-12-21 13:45:08,765 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 507 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 507 SdHoareTripleChecker+Valid, 632 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 13:45:08,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [507 Valid, 632 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 13:45:08,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2023-12-21 13:45:08,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 136. [2023-12-21 13:45:08,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 132 states have (on average 1.2424242424242424) internal successors, (164), 135 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:08,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 164 transitions. [2023-12-21 13:45:08,768 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 164 transitions. Word has length 52 [2023-12-21 13:45:08,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:45:08,768 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 164 transitions. [2023-12-21 13:45:08,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:08,769 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 164 transitions. [2023-12-21 13:45:08,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-21 13:45:08,769 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:45:08,769 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] [2023-12-21 13:45:08,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-21 13:45:08,769 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:45:08,770 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:45:08,770 INFO L85 PathProgramCache]: Analyzing trace with hash 815340979, now seen corresponding path program 1 times [2023-12-21 13:45:08,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:45:08,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588733331] [2023-12-21 13:45:08,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:45:08,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:45:08,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:45:09,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:45:09,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:45:09,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588733331] [2023-12-21 13:45:09,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588733331] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:45:09,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:45:09,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-12-21 13:45:09,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686948912] [2023-12-21 13:45:09,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:45:09,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-21 13:45:09,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:45:09,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-21 13:45:09,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2023-12-21 13:45:09,398 INFO L87 Difference]: Start difference. First operand 136 states and 164 transitions. Second operand has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 17 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:10,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:45:10,423 INFO L93 Difference]: Finished difference Result 369 states and 463 transitions. [2023-12-21 13:45:10,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-21 13:45:10,423 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 17 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2023-12-21 13:45:10,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:45:10,425 INFO L225 Difference]: With dead ends: 369 [2023-12-21 13:45:10,425 INFO L226 Difference]: Without dead ends: 361 [2023-12-21 13:45:10,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=209, Invalid=847, Unknown=0, NotChecked=0, Total=1056 [2023-12-21 13:45:10,426 INFO L413 NwaCegarLoop]: 308 mSDtfsCounter, 1309 mSDsluCounter, 2411 mSDsCounter, 0 mSdLazyCounter, 1123 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1309 SdHoareTripleChecker+Valid, 2719 SdHoareTripleChecker+Invalid, 1123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-21 13:45:10,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1309 Valid, 2719 Invalid, 1123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1123 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-21 13:45:10,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2023-12-21 13:45:10,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 145. [2023-12-21 13:45:10,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 141 states have (on average 1.2411347517730495) internal successors, (175), 144 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:10,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 175 transitions. [2023-12-21 13:45:10,432 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 175 transitions. Word has length 53 [2023-12-21 13:45:10,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:45:10,432 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 175 transitions. [2023-12-21 13:45:10,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 17 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:10,432 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 175 transitions. [2023-12-21 13:45:10,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-21 13:45:10,432 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:45:10,433 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] [2023-12-21 13:45:10,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-21 13:45:10,433 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:45:10,434 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:45:10,434 INFO L85 PathProgramCache]: Analyzing trace with hash -1737446413, now seen corresponding path program 1 times [2023-12-21 13:45:10,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:45:10,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766837434] [2023-12-21 13:45:10,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:45:10,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:45:10,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:45:11,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:45:11,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:45:11,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766837434] [2023-12-21 13:45:11,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766837434] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:45:11,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:45:11,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-12-21 13:45:11,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692968901] [2023-12-21 13:45:11,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:45:11,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-21 13:45:11,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:45:11,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-21 13:45:11,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2023-12-21 13:45:11,017 INFO L87 Difference]: Start difference. First operand 145 states and 175 transitions. Second operand has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 17 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:12,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:45:12,009 INFO L93 Difference]: Finished difference Result 562 states and 742 transitions. [2023-12-21 13:45:12,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-21 13:45:12,009 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 17 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2023-12-21 13:45:12,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:45:12,011 INFO L225 Difference]: With dead ends: 562 [2023-12-21 13:45:12,011 INFO L226 Difference]: Without dead ends: 556 [2023-12-21 13:45:12,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=173, Invalid=757, Unknown=0, NotChecked=0, Total=930 [2023-12-21 13:45:12,012 INFO L413 NwaCegarLoop]: 344 mSDtfsCounter, 1501 mSDsluCounter, 2592 mSDsCounter, 0 mSdLazyCounter, 1288 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1501 SdHoareTripleChecker+Valid, 2936 SdHoareTripleChecker+Invalid, 1291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-21 13:45:12,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1501 Valid, 2936 Invalid, 1291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1288 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-21 13:45:12,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2023-12-21 13:45:12,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 151. [2023-12-21 13:45:12,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 147 states have (on average 1.2448979591836735) internal successors, (183), 150 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:12,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 183 transitions. [2023-12-21 13:45:12,017 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 183 transitions. Word has length 53 [2023-12-21 13:45:12,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:45:12,017 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 183 transitions. [2023-12-21 13:45:12,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 17 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:12,017 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 183 transitions. [2023-12-21 13:45:12,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-21 13:45:12,018 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:45:12,018 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] [2023-12-21 13:45:12,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-21 13:45:12,018 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:45:12,018 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:45:12,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1302743949, now seen corresponding path program 1 times [2023-12-21 13:45:12,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:45:12,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851257294] [2023-12-21 13:45:12,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:45:12,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:45:12,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:45:12,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:45:12,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:45:12,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851257294] [2023-12-21 13:45:12,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851257294] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:45:12,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:45:12,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-12-21 13:45:12,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426516369] [2023-12-21 13:45:12,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:45:12,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-21 13:45:12,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:45:12,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-21 13:45:12,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2023-12-21 13:45:12,639 INFO L87 Difference]: Start difference. First operand 151 states and 183 transitions. Second operand has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 17 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:13,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:45:13,700 INFO L93 Difference]: Finished difference Result 372 states and 467 transitions. [2023-12-21 13:45:13,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-21 13:45:13,701 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 17 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2023-12-21 13:45:13,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:45:13,702 INFO L225 Difference]: With dead ends: 372 [2023-12-21 13:45:13,702 INFO L226 Difference]: Without dead ends: 364 [2023-12-21 13:45:13,703 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=190, Invalid=680, Unknown=0, NotChecked=0, Total=870 [2023-12-21 13:45:13,703 INFO L413 NwaCegarLoop]: 308 mSDtfsCounter, 924 mSDsluCounter, 2745 mSDsCounter, 0 mSdLazyCounter, 1270 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 924 SdHoareTripleChecker+Valid, 3053 SdHoareTripleChecker+Invalid, 1270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-21 13:45:13,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [924 Valid, 3053 Invalid, 1270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1270 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-21 13:45:13,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2023-12-21 13:45:13,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 156. [2023-12-21 13:45:13,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 152 states have (on average 1.236842105263158) internal successors, (188), 155 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:13,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 188 transitions. [2023-12-21 13:45:13,707 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 188 transitions. Word has length 53 [2023-12-21 13:45:13,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:45:13,708 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 188 transitions. [2023-12-21 13:45:13,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 17 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:13,708 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 188 transitions. [2023-12-21 13:45:13,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-21 13:45:13,708 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:45:13,708 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] [2023-12-21 13:45:13,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-21 13:45:13,709 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:45:13,709 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:45:13,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1478570090, now seen corresponding path program 1 times [2023-12-21 13:45:13,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:45:13,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844007415] [2023-12-21 13:45:13,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:45:13,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:45:13,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:45:14,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:45:14,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:45:14,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844007415] [2023-12-21 13:45:14,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844007415] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:45:14,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:45:14,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-21 13:45:14,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865761650] [2023-12-21 13:45:14,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:45:14,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-21 13:45:14,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:45:14,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-21 13:45:14,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2023-12-21 13:45:14,374 INFO L87 Difference]: Start difference. First operand 156 states and 188 transitions. Second operand has 15 states, 15 states have (on average 3.6) internal successors, (54), 14 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:15,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:45:15,721 INFO L93 Difference]: Finished difference Result 589 states and 790 transitions. [2023-12-21 13:45:15,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-21 13:45:15,722 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.6) internal successors, (54), 14 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2023-12-21 13:45:15,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:45:15,724 INFO L225 Difference]: With dead ends: 589 [2023-12-21 13:45:15,724 INFO L226 Difference]: Without dead ends: 583 [2023-12-21 13:45:15,724 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=217, Invalid=713, Unknown=0, NotChecked=0, Total=930 [2023-12-21 13:45:15,725 INFO L413 NwaCegarLoop]: 324 mSDtfsCounter, 1381 mSDsluCounter, 2398 mSDsCounter, 0 mSdLazyCounter, 986 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1381 SdHoareTripleChecker+Valid, 2722 SdHoareTripleChecker+Invalid, 989 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 986 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-21 13:45:15,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1381 Valid, 2722 Invalid, 989 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 986 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-21 13:45:15,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2023-12-21 13:45:15,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 156. [2023-12-21 13:45:15,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 152 states have (on average 1.236842105263158) internal successors, (188), 155 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:15,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 188 transitions. [2023-12-21 13:45:15,730 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 188 transitions. Word has length 54 [2023-12-21 13:45:15,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:45:15,730 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 188 transitions. [2023-12-21 13:45:15,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.6) internal successors, (54), 14 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:15,730 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 188 transitions. [2023-12-21 13:45:15,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-21 13:45:15,731 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:45:15,731 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] [2023-12-21 13:45:15,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-21 13:45:15,731 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:45:15,731 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:45:15,731 INFO L85 PathProgramCache]: Analyzing trace with hash 497385650, now seen corresponding path program 1 times [2023-12-21 13:45:15,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:45:15,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172606877] [2023-12-21 13:45:15,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:45:15,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:45:15,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:45:16,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:45:16,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:45:16,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172606877] [2023-12-21 13:45:16,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172606877] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:45:16,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:45:16,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-21 13:45:16,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434333990] [2023-12-21 13:45:16,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:45:16,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-21 13:45:16,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:45:16,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-21 13:45:16,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-12-21 13:45:16,177 INFO L87 Difference]: Start difference. First operand 156 states and 188 transitions. Second operand has 13 states, 13 states have (on average 4.153846153846154) internal successors, (54), 12 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:16,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:45:16,986 INFO L93 Difference]: Finished difference Result 419 states and 559 transitions. [2023-12-21 13:45:16,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-21 13:45:16,987 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.153846153846154) internal successors, (54), 12 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2023-12-21 13:45:16,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:45:16,988 INFO L225 Difference]: With dead ends: 419 [2023-12-21 13:45:16,988 INFO L226 Difference]: Without dead ends: 404 [2023-12-21 13:45:16,989 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2023-12-21 13:45:16,989 INFO L413 NwaCegarLoop]: 347 mSDtfsCounter, 1069 mSDsluCounter, 1833 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1069 SdHoareTripleChecker+Valid, 2180 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 13:45:16,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1069 Valid, 2180 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 13:45:16,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2023-12-21 13:45:16,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 141. [2023-12-21 13:45:16,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 138 states have (on average 1.2391304347826086) internal successors, (171), 140 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:16,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 171 transitions. [2023-12-21 13:45:16,993 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 171 transitions. Word has length 54 [2023-12-21 13:45:16,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:45:16,993 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 171 transitions. [2023-12-21 13:45:16,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.153846153846154) internal successors, (54), 12 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:16,993 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 171 transitions. [2023-12-21 13:45:16,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-21 13:45:16,994 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:45:16,994 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] [2023-12-21 13:45:16,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-21 13:45:16,994 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:45:16,994 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:45:16,995 INFO L85 PathProgramCache]: Analyzing trace with hash -626895726, now seen corresponding path program 1 times [2023-12-21 13:45:16,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:45:16,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964618516] [2023-12-21 13:45:16,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:45:16,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:45:17,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:45:17,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:45:17,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:45:17,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964618516] [2023-12-21 13:45:17,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964618516] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:45:17,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:45:17,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-21 13:45:17,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102014847] [2023-12-21 13:45:17,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:45:17,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-21 13:45:17,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:45:17,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-21 13:45:17,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-12-21 13:45:17,379 INFO L87 Difference]: Start difference. First operand 141 states and 171 transitions. Second operand has 13 states, 13 states have (on average 4.153846153846154) internal successors, (54), 12 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:18,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:45:18,185 INFO L93 Difference]: Finished difference Result 504 states and 684 transitions. [2023-12-21 13:45:18,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-21 13:45:18,185 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.153846153846154) internal successors, (54), 12 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2023-12-21 13:45:18,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:45:18,189 INFO L225 Difference]: With dead ends: 504 [2023-12-21 13:45:18,189 INFO L226 Difference]: Without dead ends: 498 [2023-12-21 13:45:18,190 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 [2023-12-21 13:45:18,191 INFO L413 NwaCegarLoop]: 305 mSDtfsCounter, 1006 mSDsluCounter, 1988 mSDsCounter, 0 mSdLazyCounter, 667 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1006 SdHoareTripleChecker+Valid, 2293 SdHoareTripleChecker+Invalid, 667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 13:45:18,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1006 Valid, 2293 Invalid, 667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 667 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 13:45:18,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2023-12-21 13:45:18,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 123. [2023-12-21 13:45:18,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 121 states have (on average 1.2396694214876034) internal successors, (150), 122 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:18,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 150 transitions. [2023-12-21 13:45:18,195 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 150 transitions. Word has length 54 [2023-12-21 13:45:18,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:45:18,195 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 150 transitions. [2023-12-21 13:45:18,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.153846153846154) internal successors, (54), 12 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:18,195 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 150 transitions. [2023-12-21 13:45:18,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-21 13:45:18,195 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:45:18,195 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] [2023-12-21 13:45:18,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-21 13:45:18,196 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:45:18,196 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:45:18,196 INFO L85 PathProgramCache]: Analyzing trace with hash -738737596, now seen corresponding path program 1 times [2023-12-21 13:45:18,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:45:18,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700975027] [2023-12-21 13:45:18,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:45:18,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:45:18,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:45:18,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:45:18,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:45:18,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700975027] [2023-12-21 13:45:18,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700975027] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:45:18,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:45:18,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-21 13:45:18,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460297041] [2023-12-21 13:45:18,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:45:18,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-21 13:45:18,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:45:18,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-21 13:45:18,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2023-12-21 13:45:18,730 INFO L87 Difference]: Start difference. First operand 123 states and 150 transitions. Second operand has 14 states, 14 states have (on average 3.857142857142857) internal successors, (54), 13 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:19,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:45:19,379 INFO L93 Difference]: Finished difference Result 252 states and 322 transitions. [2023-12-21 13:45:19,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-21 13:45:19,380 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.857142857142857) internal successors, (54), 13 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2023-12-21 13:45:19,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:45:19,381 INFO L225 Difference]: With dead ends: 252 [2023-12-21 13:45:19,381 INFO L226 Difference]: Without dead ends: 238 [2023-12-21 13:45:19,381 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2023-12-21 13:45:19,382 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 530 mSDsluCounter, 1153 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 530 SdHoareTripleChecker+Valid, 1337 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 13:45:19,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [530 Valid, 1337 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 13:45:19,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2023-12-21 13:45:19,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 118. [2023-12-21 13:45:19,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 116 states have (on average 1.2413793103448276) internal successors, (144), 117 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:19,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 144 transitions. [2023-12-21 13:45:19,385 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 144 transitions. Word has length 54 [2023-12-21 13:45:19,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:45:19,385 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 144 transitions. [2023-12-21 13:45:19,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.857142857142857) internal successors, (54), 13 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:19,385 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 144 transitions. [2023-12-21 13:45:19,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-21 13:45:19,385 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:45:19,386 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] [2023-12-21 13:45:19,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-21 13:45:19,386 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:45:19,386 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:45:19,386 INFO L85 PathProgramCache]: Analyzing trace with hash 149216704, now seen corresponding path program 1 times [2023-12-21 13:45:19,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:45:19,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689962258] [2023-12-21 13:45:19,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:45:19,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:45:19,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:45:19,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:45:19,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:45:19,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689962258] [2023-12-21 13:45:19,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689962258] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:45:19,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:45:19,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 13:45:19,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876149650] [2023-12-21 13:45:19,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:45:19,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 13:45:19,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:45:19,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 13:45:19,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-12-21 13:45:19,682 INFO L87 Difference]: Start difference. First operand 118 states and 144 transitions. Second operand has 11 states, 11 states have (on average 4.909090909090909) internal successors, (54), 10 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:20,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:45:20,083 INFO L93 Difference]: Finished difference Result 366 states and 500 transitions. [2023-12-21 13:45:20,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-21 13:45:20,083 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.909090909090909) internal successors, (54), 10 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2023-12-21 13:45:20,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:45:20,084 INFO L225 Difference]: With dead ends: 366 [2023-12-21 13:45:20,084 INFO L226 Difference]: Without dead ends: 348 [2023-12-21 13:45:20,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=147, Invalid=359, Unknown=0, NotChecked=0, Total=506 [2023-12-21 13:45:20,085 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 1083 mSDsluCounter, 636 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1083 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:45:20,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1083 Valid, 805 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 13:45:20,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2023-12-21 13:45:20,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 100. [2023-12-21 13:45:20,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 99 states have (on average 1.2626262626262625) internal successors, (125), 99 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:20,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 125 transitions. [2023-12-21 13:45:20,088 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 125 transitions. Word has length 54 [2023-12-21 13:45:20,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:45:20,088 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 125 transitions. [2023-12-21 13:45:20,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.909090909090909) internal successors, (54), 10 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:20,088 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 125 transitions. [2023-12-21 13:45:20,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-21 13:45:20,089 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:45:20,089 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] [2023-12-21 13:45:20,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-21 13:45:20,089 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:45:20,089 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:45:20,089 INFO L85 PathProgramCache]: Analyzing trace with hash -546984540, now seen corresponding path program 1 times [2023-12-21 13:45:20,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:45:20,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935057862] [2023-12-21 13:45:20,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:45:20,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:45:20,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:45:20,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:45:20,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:45:20,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935057862] [2023-12-21 13:45:20,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935057862] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:45:20,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:45:20,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 13:45:20,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673313438] [2023-12-21 13:45:20,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:45:20,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 13:45:20,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:45:20,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 13:45:20,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 13:45:20,148 INFO L87 Difference]: Start difference. First operand 100 states and 125 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:20,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:45:20,207 INFO L93 Difference]: Finished difference Result 358 states and 509 transitions. [2023-12-21 13:45:20,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 13:45:20,207 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2023-12-21 13:45:20,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:45:20,208 INFO L225 Difference]: With dead ends: 358 [2023-12-21 13:45:20,208 INFO L226 Difference]: Without dead ends: 315 [2023-12-21 13:45:20,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-21 13:45:20,210 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 530 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 530 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:45:20,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [530 Valid, 457 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:45:20,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2023-12-21 13:45:20,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 141. [2023-12-21 13:45:20,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 140 states have (on average 1.3285714285714285) internal successors, (186), 140 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:20,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 186 transitions. [2023-12-21 13:45:20,214 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 186 transitions. Word has length 71 [2023-12-21 13:45:20,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:45:20,214 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 186 transitions. [2023-12-21 13:45:20,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:20,214 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 186 transitions. [2023-12-21 13:45:20,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-21 13:45:20,215 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:45:20,215 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] [2023-12-21 13:45:20,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-21 13:45:20,215 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:45:20,215 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:45:20,215 INFO L85 PathProgramCache]: Analyzing trace with hash -2078520713, now seen corresponding path program 1 times [2023-12-21 13:45:20,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:45:20,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580037406] [2023-12-21 13:45:20,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:45:20,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:45:20,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:45:20,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:45:20,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:45:20,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580037406] [2023-12-21 13:45:20,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580037406] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:45:20,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:45:20,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 13:45:20,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722610727] [2023-12-21 13:45:20,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:45:20,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 13:45:20,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:45:20,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 13:45:20,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-21 13:45:20,283 INFO L87 Difference]: Start difference. First operand 141 states and 186 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:20,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:45:20,334 INFO L93 Difference]: Finished difference Result 436 states and 623 transitions. [2023-12-21 13:45:20,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 13:45:20,335 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2023-12-21 13:45:20,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:45:20,336 INFO L225 Difference]: With dead ends: 436 [2023-12-21 13:45:20,336 INFO L226 Difference]: Without dead ends: 352 [2023-12-21 13:45:20,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-21 13:45:20,337 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 292 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:45:20,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [292 Valid, 414 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:45:20,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2023-12-21 13:45:20,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 223. [2023-12-21 13:45:20,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 222 states have (on average 1.3918918918918919) internal successors, (309), 222 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:20,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 309 transitions. [2023-12-21 13:45:20,343 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 309 transitions. Word has length 73 [2023-12-21 13:45:20,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:45:20,343 INFO L495 AbstractCegarLoop]: Abstraction has 223 states and 309 transitions. [2023-12-21 13:45:20,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:20,343 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 309 transitions. [2023-12-21 13:45:20,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-21 13:45:20,343 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:45:20,344 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] [2023-12-21 13:45:20,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-21 13:45:20,344 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:45:20,344 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:45:20,344 INFO L85 PathProgramCache]: Analyzing trace with hash -2099864602, now seen corresponding path program 1 times [2023-12-21 13:45:20,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:45:20,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200157172] [2023-12-21 13:45:20,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:45:20,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:45:20,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:45:20,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:45:20,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:45:20,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200157172] [2023-12-21 13:45:20,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200157172] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:45:20,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:45:20,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 13:45:20,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960914776] [2023-12-21 13:45:20,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:45:20,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 13:45:20,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:45:20,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 13:45:20,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 13:45:20,441 INFO L87 Difference]: Start difference. First operand 223 states and 309 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:20,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:45:20,485 INFO L93 Difference]: Finished difference Result 391 states and 558 transitions. [2023-12-21 13:45:20,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 13:45:20,486 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2023-12-21 13:45:20,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:45:20,486 INFO L225 Difference]: With dead ends: 391 [2023-12-21 13:45:20,486 INFO L226 Difference]: Without dead ends: 225 [2023-12-21 13:45:20,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-21 13:45:20,488 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 55 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:45:20,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 295 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:45:20,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2023-12-21 13:45:20,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 223. [2023-12-21 13:45:20,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 222 states have (on average 1.382882882882883) internal successors, (307), 222 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:20,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 307 transitions. [2023-12-21 13:45:20,494 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 307 transitions. Word has length 73 [2023-12-21 13:45:20,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:45:20,494 INFO L495 AbstractCegarLoop]: Abstraction has 223 states and 307 transitions. [2023-12-21 13:45:20,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:20,494 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 307 transitions. [2023-12-21 13:45:20,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-21 13:45:20,494 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:45:20,495 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] [2023-12-21 13:45:20,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-21 13:45:20,495 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:45:20,495 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:45:20,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1455362373, now seen corresponding path program 1 times [2023-12-21 13:45:20,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:45:20,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756313442] [2023-12-21 13:45:20,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:45:20,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:45:20,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:45:20,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:45:20,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:45:20,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756313442] [2023-12-21 13:45:20,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756313442] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:45:20,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:45:20,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:45:20,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698615122] [2023-12-21 13:45:20,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:45:20,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:45:20,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:45:20,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:45:20,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:45:20,534 INFO L87 Difference]: Start difference. First operand 223 states and 307 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:20,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:45:20,555 INFO L93 Difference]: Finished difference Result 529 states and 755 transitions. [2023-12-21 13:45:20,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:45:20,558 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2023-12-21 13:45:20,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:45:20,559 INFO L225 Difference]: With dead ends: 529 [2023-12-21 13:45:20,559 INFO L226 Difference]: Without dead ends: 363 [2023-12-21 13:45:20,560 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:45:20,560 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 68 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:45:20,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 193 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:45:20,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2023-12-21 13:45:20,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 357. [2023-12-21 13:45:20,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 356 states have (on average 1.3876404494382022) internal successors, (494), 356 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:20,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 494 transitions. [2023-12-21 13:45:20,571 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 494 transitions. Word has length 73 [2023-12-21 13:45:20,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:45:20,571 INFO L495 AbstractCegarLoop]: Abstraction has 357 states and 494 transitions. [2023-12-21 13:45:20,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:20,571 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 494 transitions. [2023-12-21 13:45:20,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-21 13:45:20,572 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:45:20,572 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] [2023-12-21 13:45:20,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-21 13:45:20,572 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:45:20,573 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:45:20,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1485181309, now seen corresponding path program 1 times [2023-12-21 13:45:20,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:45:20,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469386292] [2023-12-21 13:45:20,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:45:20,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:45:20,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:45:20,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:45:20,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:45:20,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469386292] [2023-12-21 13:45:20,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469386292] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:45:20,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:45:20,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 13:45:20,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867983657] [2023-12-21 13:45:20,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:45:20,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 13:45:20,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:45:20,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 13:45:20,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-21 13:45:20,642 INFO L87 Difference]: Start difference. First operand 357 states and 494 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:20,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:45:20,688 INFO L93 Difference]: Finished difference Result 887 states and 1256 transitions. [2023-12-21 13:45:20,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 13:45:20,690 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2023-12-21 13:45:20,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:45:20,692 INFO L225 Difference]: With dead ends: 887 [2023-12-21 13:45:20,692 INFO L226 Difference]: Without dead ends: 736 [2023-12-21 13:45:20,692 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-21 13:45:20,692 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 287 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:45:20,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 451 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:45:20,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2023-12-21 13:45:20,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 581. [2023-12-21 13:45:20,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 581 states, 580 states have (on average 1.4068965517241379) internal successors, (816), 580 states have internal predecessors, (816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:20,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 816 transitions. [2023-12-21 13:45:20,704 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 816 transitions. Word has length 73 [2023-12-21 13:45:20,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:45:20,704 INFO L495 AbstractCegarLoop]: Abstraction has 581 states and 816 transitions. [2023-12-21 13:45:20,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:20,704 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 816 transitions. [2023-12-21 13:45:20,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-21 13:45:20,705 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:45:20,705 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:45:20,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-21 13:45:20,705 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:45:20,705 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:45:20,705 INFO L85 PathProgramCache]: Analyzing trace with hash -730460828, now seen corresponding path program 1 times [2023-12-21 13:45:20,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:45:20,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734467725] [2023-12-21 13:45:20,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:45:20,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:45:20,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:45:20,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:45:20,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:45:20,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734467725] [2023-12-21 13:45:20,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734467725] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:45:20,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:45:20,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:45:20,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065420834] [2023-12-21 13:45:20,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:45:20,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:45:20,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:45:20,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:45:20,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:45:20,762 INFO L87 Difference]: Start difference. First operand 581 states and 816 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:20,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:45:20,777 INFO L93 Difference]: Finished difference Result 1573 states and 2228 transitions. [2023-12-21 13:45:20,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:45:20,778 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2023-12-21 13:45:20,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:45:20,781 INFO L225 Difference]: With dead ends: 1573 [2023-12-21 13:45:20,781 INFO L226 Difference]: Without dead ends: 1049 [2023-12-21 13:45:20,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:45:20,782 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 54 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 256 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 [2023-12-21 13:45:20,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 256 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:45:20,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1049 states. [2023-12-21 13:45:20,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1049 to 991. [2023-12-21 13:45:20,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 991 states, 990 states have (on average 1.402020202020202) internal successors, (1388), 990 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:20,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 991 states to 991 states and 1388 transitions. [2023-12-21 13:45:20,810 INFO L78 Accepts]: Start accepts. Automaton has 991 states and 1388 transitions. Word has length 74 [2023-12-21 13:45:20,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:45:20,811 INFO L495 AbstractCegarLoop]: Abstraction has 991 states and 1388 transitions. [2023-12-21 13:45:20,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:20,811 INFO L276 IsEmpty]: Start isEmpty. Operand 991 states and 1388 transitions. [2023-12-21 13:45:20,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-21 13:45:20,812 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:45:20,812 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] [2023-12-21 13:45:20,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-21 13:45:20,813 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:45:20,814 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:45:20,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1645152135, now seen corresponding path program 1 times [2023-12-21 13:45:20,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:45:20,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196266607] [2023-12-21 13:45:20,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:45:20,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:45:20,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:45:20,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:45:20,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:45:20,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196266607] [2023-12-21 13:45:20,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196266607] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:45:20,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:45:20,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:45:20,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707159250] [2023-12-21 13:45:20,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:45:20,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:45:20,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:45:20,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:45:20,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:45:20,872 INFO L87 Difference]: Start difference. First operand 991 states and 1388 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:20,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:45:20,891 INFO L93 Difference]: Finished difference Result 2747 states and 3846 transitions. [2023-12-21 13:45:20,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:45:20,891 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2023-12-21 13:45:20,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:45:20,896 INFO L225 Difference]: With dead ends: 2747 [2023-12-21 13:45:20,896 INFO L226 Difference]: Without dead ends: 1813 [2023-12-21 13:45:20,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:45:20,897 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 44 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 256 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 [2023-12-21 13:45:20,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 256 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:45:20,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1813 states. [2023-12-21 13:45:20,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1813 to 1699. [2023-12-21 13:45:20,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1699 states, 1698 states have (on average 1.3839811542991756) internal successors, (2350), 1698 states have internal predecessors, (2350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:20,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1699 states to 1699 states and 2350 transitions. [2023-12-21 13:45:20,947 INFO L78 Accepts]: Start accepts. Automaton has 1699 states and 2350 transitions. Word has length 75 [2023-12-21 13:45:20,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:45:20,947 INFO L495 AbstractCegarLoop]: Abstraction has 1699 states and 2350 transitions. [2023-12-21 13:45:20,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:20,947 INFO L276 IsEmpty]: Start isEmpty. Operand 1699 states and 2350 transitions. [2023-12-21 13:45:20,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-21 13:45:20,948 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:45:20,948 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] [2023-12-21 13:45:20,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-21 13:45:20,949 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:45:20,949 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:45:20,949 INFO L85 PathProgramCache]: Analyzing trace with hash -92740011, now seen corresponding path program 1 times [2023-12-21 13:45:20,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:45:20,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891789416] [2023-12-21 13:45:20,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:45:20,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:45:20,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:45:21,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:45:21,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:45:21,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891789416] [2023-12-21 13:45:21,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891789416] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:45:21,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:45:21,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 13:45:21,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711506607] [2023-12-21 13:45:21,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:45:21,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 13:45:21,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:45:21,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 13:45:21,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 13:45:21,069 INFO L87 Difference]: Start difference. First operand 1699 states and 2350 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:21,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:45:21,130 INFO L93 Difference]: Finished difference Result 3014 states and 4138 transitions. [2023-12-21 13:45:21,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 13:45:21,131 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2023-12-21 13:45:21,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:45:21,139 INFO L225 Difference]: With dead ends: 3014 [2023-12-21 13:45:21,139 INFO L226 Difference]: Without dead ends: 3012 [2023-12-21 13:45:21,140 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 [2023-12-21 13:45:21,143 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 203 mSDsluCounter, 495 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 660 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:45:21,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 660 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:45:21,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3012 states. [2023-12-21 13:45:21,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3012 to 1771. [2023-12-21 13:45:21,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1771 states, 1770 states have (on average 1.3593220338983052) internal successors, (2406), 1770 states have internal predecessors, (2406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:21,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1771 states to 1771 states and 2406 transitions. [2023-12-21 13:45:21,180 INFO L78 Accepts]: Start accepts. Automaton has 1771 states and 2406 transitions. Word has length 76 [2023-12-21 13:45:21,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:45:21,180 INFO L495 AbstractCegarLoop]: Abstraction has 1771 states and 2406 transitions. [2023-12-21 13:45:21,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:21,180 INFO L276 IsEmpty]: Start isEmpty. Operand 1771 states and 2406 transitions. [2023-12-21 13:45:21,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-21 13:45:21,181 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:45:21,181 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] [2023-12-21 13:45:21,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-12-21 13:45:21,181 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:45:21,181 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:45:21,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1972991000, now seen corresponding path program 1 times [2023-12-21 13:45:21,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:45:21,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878515343] [2023-12-21 13:45:21,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:45:21,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:45:21,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:45:21,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:45:21,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:45:21,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878515343] [2023-12-21 13:45:21,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878515343] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:45:21,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:45:21,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 13:45:21,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536790914] [2023-12-21 13:45:21,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:45:21,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 13:45:21,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:45:21,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 13:45:21,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-21 13:45:21,244 INFO L87 Difference]: Start difference. First operand 1771 states and 2406 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:21,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:45:21,298 INFO L93 Difference]: Finished difference Result 3255 states and 4450 transitions. [2023-12-21 13:45:21,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 13:45:21,298 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2023-12-21 13:45:21,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:45:21,305 INFO L225 Difference]: With dead ends: 3255 [2023-12-21 13:45:21,306 INFO L226 Difference]: Without dead ends: 2761 [2023-12-21 13:45:21,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-21 13:45:21,307 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 284 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:45:21,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 423 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:45:21,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2761 states. [2023-12-21 13:45:21,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2761 to 2263. [2023-12-21 13:45:21,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2263 states, 2262 states have (on average 1.3607427055702919) internal successors, (3078), 2262 states have internal predecessors, (3078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:21,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2263 states to 2263 states and 3078 transitions. [2023-12-21 13:45:21,342 INFO L78 Accepts]: Start accepts. Automaton has 2263 states and 3078 transitions. Word has length 76 [2023-12-21 13:45:21,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:45:21,343 INFO L495 AbstractCegarLoop]: Abstraction has 2263 states and 3078 transitions. [2023-12-21 13:45:21,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:21,343 INFO L276 IsEmpty]: Start isEmpty. Operand 2263 states and 3078 transitions. [2023-12-21 13:45:21,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-21 13:45:21,344 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:45:21,344 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] [2023-12-21 13:45:21,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-12-21 13:45:21,344 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:45:21,344 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:45:21,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1730490915, now seen corresponding path program 1 times [2023-12-21 13:45:21,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:45:21,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219106992] [2023-12-21 13:45:21,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:45:21,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:45:21,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:45:21,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:45:21,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:45:21,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219106992] [2023-12-21 13:45:21,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219106992] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:45:21,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:45:21,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:45:21,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933796631] [2023-12-21 13:45:21,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:45:21,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:45:21,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:45:21,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:45:21,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:45:21,412 INFO L87 Difference]: Start difference. First operand 2263 states and 3078 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:21,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:45:21,441 INFO L93 Difference]: Finished difference Result 5883 states and 7992 transitions. [2023-12-21 13:45:21,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:45:21,441 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2023-12-21 13:45:21,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:45:21,451 INFO L225 Difference]: With dead ends: 5883 [2023-12-21 13:45:21,451 INFO L226 Difference]: Without dead ends: 3677 [2023-12-21 13:45:21,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:45:21,455 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 58 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 259 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 [2023-12-21 13:45:21,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 259 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:45:21,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3677 states. [2023-12-21 13:45:21,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3677 to 3387. [2023-12-21 13:45:21,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3387 states, 3386 states have (on average 1.3414057885410513) internal successors, (4542), 3386 states have internal predecessors, (4542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:21,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3387 states to 3387 states and 4542 transitions. [2023-12-21 13:45:21,532 INFO L78 Accepts]: Start accepts. Automaton has 3387 states and 4542 transitions. Word has length 77 [2023-12-21 13:45:21,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:45:21,533 INFO L495 AbstractCegarLoop]: Abstraction has 3387 states and 4542 transitions. [2023-12-21 13:45:21,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:21,533 INFO L276 IsEmpty]: Start isEmpty. Operand 3387 states and 4542 transitions. [2023-12-21 13:45:21,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-21 13:45:21,534 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:45:21,534 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 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] [2023-12-21 13:45:21,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-12-21 13:45:21,535 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:45:21,535 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:45:21,535 INFO L85 PathProgramCache]: Analyzing trace with hash 350821364, now seen corresponding path program 1 times [2023-12-21 13:45:21,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:45:21,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664250993] [2023-12-21 13:45:21,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:45:21,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:45:21,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:45:21,597 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:45:21,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:45:21,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664250993] [2023-12-21 13:45:21,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664250993] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:45:21,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:45:21,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:45:21,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114418600] [2023-12-21 13:45:21,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:45:21,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:45:21,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:45:21,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:45:21,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:45:21,599 INFO L87 Difference]: Start difference. First operand 3387 states and 4542 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) [2023-12-21 13:45:21,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:45:21,630 INFO L93 Difference]: Finished difference Result 6719 states and 9024 transitions. [2023-12-21 13:45:21,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:45:21,631 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 [2023-12-21 13:45:21,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:45:21,640 INFO L225 Difference]: With dead ends: 6719 [2023-12-21 13:45:21,640 INFO L226 Difference]: Without dead ends: 3389 [2023-12-21 13:45:21,645 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:45:21,645 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 56 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:45:21,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 236 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:45:21,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3389 states. [2023-12-21 13:45:21,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3389 to 3387. [2023-12-21 13:45:21,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3387 states, 3386 states have (on average 1.3201417601890135) internal successors, (4470), 3386 states have internal predecessors, (4470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:21,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3387 states to 3387 states and 4470 transitions. [2023-12-21 13:45:21,703 INFO L78 Accepts]: Start accepts. Automaton has 3387 states and 4470 transitions. Word has length 98 [2023-12-21 13:45:21,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:45:21,703 INFO L495 AbstractCegarLoop]: Abstraction has 3387 states and 4470 transitions. [2023-12-21 13:45:21,703 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) [2023-12-21 13:45:21,703 INFO L276 IsEmpty]: Start isEmpty. Operand 3387 states and 4470 transitions. [2023-12-21 13:45:21,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-21 13:45:21,704 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:45:21,705 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 13:45:21,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-12-21 13:45:21,705 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:45:21,705 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:45:21,705 INFO L85 PathProgramCache]: Analyzing trace with hash -147664979, now seen corresponding path program 1 times [2023-12-21 13:45:21,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:45:21,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902641652] [2023-12-21 13:45:21,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:45:21,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:45:21,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:45:22,019 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:45:22,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:45:22,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902641652] [2023-12-21 13:45:22,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902641652] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:45:22,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [480171303] [2023-12-21 13:45:22,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:45:22,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:45:22,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:45:22,026 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) [2023-12-21 13:45:22,036 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-21 13:45:22,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:45:22,185 INFO L262 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-21 13:45:22,200 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:45:22,802 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:45:22,802 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 13:45:23,750 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:45:23,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [480171303] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 13:45:23,751 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 13:45:23,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 11] total 29 [2023-12-21 13:45:23,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406846328] [2023-12-21 13:45:23,751 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 13:45:23,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-12-21 13:45:23,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:45:23,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-12-21 13:45:23,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=764, Unknown=0, NotChecked=0, Total=870 [2023-12-21 13:45:23,753 INFO L87 Difference]: Start difference. First operand 3387 states and 4470 transitions. Second operand has 30 states, 30 states have (on average 8.733333333333333) internal successors, (262), 29 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:38,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:45:38,691 INFO L93 Difference]: Finished difference Result 71175 states and 91935 transitions. [2023-12-21 13:45:38,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 309 states. [2023-12-21 13:45:38,692 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 8.733333333333333) internal successors, (262), 29 states have internal predecessors, (262), 0 states have call successors, (0), 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 [2023-12-21 13:45:38,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:45:38,826 INFO L225 Difference]: With dead ends: 71175 [2023-12-21 13:45:38,826 INFO L226 Difference]: Without dead ends: 67845 [2023-12-21 13:45:38,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 511 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 335 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47612 ImplicationChecksByTransitivity, 12.6s TimeCoverageRelationStatistics Valid=14044, Invalid=99188, Unknown=0, NotChecked=0, Total=113232 [2023-12-21 13:45:38,865 INFO L413 NwaCegarLoop]: 269 mSDtfsCounter, 6757 mSDsluCounter, 3822 mSDsCounter, 0 mSdLazyCounter, 3640 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6757 SdHoareTripleChecker+Valid, 4091 SdHoareTripleChecker+Invalid, 3695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 3640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:45:38,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6757 Valid, 4091 Invalid, 3695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 3640 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-21 13:45:38,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67845 states. [2023-12-21 13:45:39,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67845 to 17123. [2023-12-21 13:45:39,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17123 states, 17122 states have (on average 1.3084335942062844) internal successors, (22403), 17122 states have internal predecessors, (22403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:39,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17123 states to 17123 states and 22403 transitions. [2023-12-21 13:45:39,633 INFO L78 Accepts]: Start accepts. Automaton has 17123 states and 22403 transitions. Word has length 98 [2023-12-21 13:45:39,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:45:39,633 INFO L495 AbstractCegarLoop]: Abstraction has 17123 states and 22403 transitions. [2023-12-21 13:45:39,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 8.733333333333333) internal successors, (262), 29 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:45:39,633 INFO L276 IsEmpty]: Start isEmpty. Operand 17123 states and 22403 transitions. [2023-12-21 13:45:39,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-21 13:45:39,636 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:45:39,636 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 13:45:39,660 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-21 13:45:39,842 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,SelfDestructingSolverStorable32 [2023-12-21 13:45:39,842 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:45:39,843 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:45:39,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1459589513, now seen corresponding path program 1 times [2023-12-21 13:45:39,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:45:39,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127222605] [2023-12-21 13:45:39,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:45:39,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:45:39,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:45:40,236 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:45:40,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:45:40,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127222605] [2023-12-21 13:45:40,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127222605] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:45:40,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [789054435] [2023-12-21 13:45:40,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:45:40,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:45:40,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:45:40,238 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) [2023-12-21 13:45:40,240 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-21 13:45:40,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:45:40,387 INFO L262 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-21 13:45:40,392 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:45:40,809 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:45:40,810 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 13:45:41,365 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:45:41,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [789054435] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 13:45:41,365 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 13:45:41,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 28 [2023-12-21 13:45:41,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886322819] [2023-12-21 13:45:41,365 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 13:45:41,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-21 13:45:41,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:45:41,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-21 13:45:41,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=683, Unknown=0, NotChecked=0, Total=756 [2023-12-21 13:45:41,367 INFO L87 Difference]: Start difference. First operand 17123 states and 22403 transitions. Second operand has 28 states, 28 states have (on average 9.678571428571429) internal successors, (271), 28 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:46:39,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:46:39,640 INFO L93 Difference]: Finished difference Result 195162 states and 250866 transitions. [2023-12-21 13:46:39,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 800 states. [2023-12-21 13:46:39,641 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 9.678571428571429) internal successors, (271), 28 states have internal predecessors, (271), 0 states have call successors, (0), 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 [2023-12-21 13:46:39,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:46:39,920 INFO L225 Difference]: With dead ends: 195162 [2023-12-21 13:46:39,920 INFO L226 Difference]: Without dead ends: 178122 [2023-12-21 13:46:40,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1005 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 824 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326706 ImplicationChecksByTransitivity, 53.2s TimeCoverageRelationStatistics Valid=67124, Invalid=614326, Unknown=0, NotChecked=0, Total=681450 [2023-12-21 13:46:40,003 INFO L413 NwaCegarLoop]: 412 mSDtfsCounter, 16523 mSDsluCounter, 4944 mSDsCounter, 0 mSdLazyCounter, 5619 mSolverCounterSat, 284 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16523 SdHoareTripleChecker+Valid, 5356 SdHoareTripleChecker+Invalid, 5903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 284 IncrementalHoareTripleChecker+Valid, 5619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-12-21 13:46:40,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16523 Valid, 5356 Invalid, 5903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [284 Valid, 5619 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-12-21 13:46:40,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178122 states. [2023-12-21 13:46:41,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178122 to 40834. [2023-12-21 13:46:41,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40834 states, 40833 states have (on average 1.303994318320966) internal successors, (53246), 40833 states have internal predecessors, (53246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:46:41,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40834 states to 40834 states and 53246 transitions. [2023-12-21 13:46:41,446 INFO L78 Accepts]: Start accepts. Automaton has 40834 states and 53246 transitions. Word has length 99 [2023-12-21 13:46:41,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:46:41,446 INFO L495 AbstractCegarLoop]: Abstraction has 40834 states and 53246 transitions. [2023-12-21 13:46:41,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 9.678571428571429) internal successors, (271), 28 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:46:41,447 INFO L276 IsEmpty]: Start isEmpty. Operand 40834 states and 53246 transitions. [2023-12-21 13:46:41,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-21 13:46:41,453 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:46:41,453 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 13:46:41,462 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-21 13:46:41,659 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,SelfDestructingSolverStorable33 [2023-12-21 13:46:41,660 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:46:41,660 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:46:41,661 INFO L85 PathProgramCache]: Analyzing trace with hash 388873768, now seen corresponding path program 1 times [2023-12-21 13:46:41,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:46:41,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048970937] [2023-12-21 13:46:41,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:46:41,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:46:41,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:46:41,702 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-21 13:46:41,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:46:41,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048970937] [2023-12-21 13:46:41,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048970937] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:46:41,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:46:41,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:46:41,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677644838] [2023-12-21 13:46:41,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:46:41,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:46:41,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:46:41,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:46:41,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:46:41,706 INFO L87 Difference]: Start difference. First operand 40834 states and 53246 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) [2023-12-21 13:46:41,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:46:41,869 INFO L93 Difference]: Finished difference Result 66054 states and 86364 transitions. [2023-12-21 13:46:41,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:46:41,870 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 100 [2023-12-21 13:46:41,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:46:41,897 INFO L225 Difference]: With dead ends: 66054 [2023-12-21 13:46:41,897 INFO L226 Difference]: Without dead ends: 25336 [2023-12-21 13:46:41,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:46:41,928 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 83 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:46:41,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 101 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:46:41,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25336 states. [2023-12-21 13:46:42,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25336 to 25307. [2023-12-21 13:46:42,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25307 states, 25306 states have (on average 1.2953054611554573) internal successors, (32779), 25306 states have internal predecessors, (32779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:46:42,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25307 states to 25307 states and 32779 transitions. [2023-12-21 13:46:42,191 INFO L78 Accepts]: Start accepts. Automaton has 25307 states and 32779 transitions. Word has length 100 [2023-12-21 13:46:42,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:46:42,192 INFO L495 AbstractCegarLoop]: Abstraction has 25307 states and 32779 transitions. [2023-12-21 13:46:42,192 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) [2023-12-21 13:46:42,192 INFO L276 IsEmpty]: Start isEmpty. Operand 25307 states and 32779 transitions. [2023-12-21 13:46:42,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-21 13:46:42,196 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:46:42,196 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 13:46:42,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-12-21 13:46:42,197 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:46:42,197 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:46:42,197 INFO L85 PathProgramCache]: Analyzing trace with hash 719622775, now seen corresponding path program 1 times [2023-12-21 13:46:42,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:46:42,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542622993] [2023-12-21 13:46:42,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:46:42,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:46:42,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:46:42,483 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-21 13:46:42,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:46:42,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542622993] [2023-12-21 13:46:42,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542622993] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:46:42,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:46:42,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 13:46:42,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316610050] [2023-12-21 13:46:42,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:46:42,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 13:46:42,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:46:42,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 13:46:42,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-21 13:46:42,485 INFO L87 Difference]: Start difference. First operand 25307 states and 32779 transitions. Second operand has 11 states, 11 states have (on average 8.545454545454545) internal successors, (94), 10 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) [2023-12-21 13:46:43,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:46:43,232 INFO L93 Difference]: Finished difference Result 67134 states and 86259 transitions. [2023-12-21 13:46:43,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-21 13:46:43,233 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.545454545454545) internal successors, (94), 10 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 100 [2023-12-21 13:46:43,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:46:43,301 INFO L225 Difference]: With dead ends: 67134 [2023-12-21 13:46:43,301 INFO L226 Difference]: Without dead ends: 53027 [2023-12-21 13:46:43,323 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=242, Invalid=688, Unknown=0, NotChecked=0, Total=930 [2023-12-21 13:46:43,323 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 1704 mSDsluCounter, 654 mSDsCounter, 0 mSdLazyCounter, 680 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1704 SdHoareTripleChecker+Valid, 842 SdHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 13:46:43,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1704 Valid, 842 Invalid, 722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 680 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 13:46:43,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53027 states. [2023-12-21 13:46:44,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53027 to 25307. [2023-12-21 13:46:44,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25307 states, 25306 states have (on average 1.2952264285149766) internal successors, (32777), 25306 states have internal predecessors, (32777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:46:44,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25307 states to 25307 states and 32777 transitions. [2023-12-21 13:46:44,194 INFO L78 Accepts]: Start accepts. Automaton has 25307 states and 32777 transitions. Word has length 100 [2023-12-21 13:46:44,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:46:44,194 INFO L495 AbstractCegarLoop]: Abstraction has 25307 states and 32777 transitions. [2023-12-21 13:46:44,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.545454545454545) internal successors, (94), 10 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) [2023-12-21 13:46:44,195 INFO L276 IsEmpty]: Start isEmpty. Operand 25307 states and 32777 transitions. [2023-12-21 13:46:44,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-21 13:46:44,199 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:46:44,199 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 13:46:44,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-12-21 13:46:44,199 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:46:44,200 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:46:44,200 INFO L85 PathProgramCache]: Analyzing trace with hash -966122679, now seen corresponding path program 1 times [2023-12-21 13:46:44,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:46:44,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592587972] [2023-12-21 13:46:44,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:46:44,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:46:44,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:46:44,344 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-21 13:46:44,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:46:44,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592587972] [2023-12-21 13:46:44,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592587972] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:46:44,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:46:44,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 13:46:44,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889687867] [2023-12-21 13:46:44,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:46:44,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 13:46:44,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:46:44,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 13:46:44,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 13:46:44,347 INFO L87 Difference]: Start difference. First operand 25307 states and 32777 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:46:44,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:46:44,638 INFO L93 Difference]: Finished difference Result 41818 states and 54122 transitions. [2023-12-21 13:46:44,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 13:46:44,638 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 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 100 [2023-12-21 13:46:44,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:46:44,681 INFO L225 Difference]: With dead ends: 41818 [2023-12-21 13:46:44,681 INFO L226 Difference]: Without dead ends: 35968 [2023-12-21 13:46:44,696 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 [2023-12-21 13:46:44,697 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 439 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:46:44,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [439 Valid, 374 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 13:46:44,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35968 states. [2023-12-21 13:46:45,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35968 to 25307. [2023-12-21 13:46:45,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25307 states, 25306 states have (on average 1.2951473958744961) internal successors, (32775), 25306 states have internal predecessors, (32775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:46:45,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25307 states to 25307 states and 32775 transitions. [2023-12-21 13:46:45,137 INFO L78 Accepts]: Start accepts. Automaton has 25307 states and 32775 transitions. Word has length 100 [2023-12-21 13:46:45,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:46:45,137 INFO L495 AbstractCegarLoop]: Abstraction has 25307 states and 32775 transitions. [2023-12-21 13:46:45,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:46:45,137 INFO L276 IsEmpty]: Start isEmpty. Operand 25307 states and 32775 transitions. [2023-12-21 13:46:45,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-21 13:46:45,141 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:46:45,141 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 13:46:45,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-12-21 13:46:45,142 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:46:45,142 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:46:45,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1598852247, now seen corresponding path program 1 times [2023-12-21 13:46:45,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:46:45,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547661907] [2023-12-21 13:46:45,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:46:45,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:46:45,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:46:45,582 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:46:45,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:46:45,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547661907] [2023-12-21 13:46:45,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547661907] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:46:45,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1869184503] [2023-12-21 13:46:45,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:46:45,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:46:45,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:46:45,585 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) [2023-12-21 13:46:45,587 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-21 13:46:45,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:46:45,749 INFO L262 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-21 13:46:45,754 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:46:46,457 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:46:46,458 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 13:46:47,570 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:46:47,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1869184503] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 13:46:47,570 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 13:46:47,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 25 [2023-12-21 13:46:47,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555289475] [2023-12-21 13:46:47,571 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 13:46:47,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-21 13:46:47,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:46:47,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-21 13:46:47,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=552, Unknown=0, NotChecked=0, Total=650 [2023-12-21 13:46:47,572 INFO L87 Difference]: Start difference. First operand 25307 states and 32775 transitions. Second operand has 26 states, 26 states have (on average 8.76923076923077) internal successors, (228), 25 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:46:49,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:46:49,134 INFO L93 Difference]: Finished difference Result 83196 states and 106825 transitions. [2023-12-21 13:46:49,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-12-21 13:46:49,134 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 8.76923076923077) internal successors, (228), 25 states have internal predecessors, (228), 0 states have call successors, (0), 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 101 [2023-12-21 13:46:49,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:46:49,189 INFO L225 Difference]: With dead ends: 83196 [2023-12-21 13:46:49,189 INFO L226 Difference]: Without dead ends: 64212 [2023-12-21 13:46:49,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 186 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 375 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=664, Invalid=1688, Unknown=0, NotChecked=0, Total=2352 [2023-12-21 13:46:49,207 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 1348 mSDsluCounter, 1053 mSDsCounter, 0 mSdLazyCounter, 1045 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1348 SdHoareTripleChecker+Valid, 1160 SdHoareTripleChecker+Invalid, 1076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1045 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-21 13:46:49,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1348 Valid, 1160 Invalid, 1076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1045 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-21 13:46:49,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64212 states. [2023-12-21 13:46:49,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64212 to 44303. [2023-12-21 13:46:49,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44303 states, 44302 states have (on average 1.29409507471446) internal successors, (57331), 44302 states have internal predecessors, (57331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:46:49,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44303 states to 44303 states and 57331 transitions. [2023-12-21 13:46:49,710 INFO L78 Accepts]: Start accepts. Automaton has 44303 states and 57331 transitions. Word has length 101 [2023-12-21 13:46:49,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:46:49,710 INFO L495 AbstractCegarLoop]: Abstraction has 44303 states and 57331 transitions. [2023-12-21 13:46:49,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 8.76923076923077) internal successors, (228), 25 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:46:49,710 INFO L276 IsEmpty]: Start isEmpty. Operand 44303 states and 57331 transitions. [2023-12-21 13:46:49,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-21 13:46:49,715 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:46:49,715 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 13:46:49,723 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-21 13:46:49,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:46:49,921 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:46:49,921 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:46:49,921 INFO L85 PathProgramCache]: Analyzing trace with hash -2001808872, now seen corresponding path program 1 times [2023-12-21 13:46:49,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:46:49,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057118437] [2023-12-21 13:46:49,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:46:49,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:46:49,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:46:50,115 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:46:50,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:46:50,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057118437] [2023-12-21 13:46:50,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057118437] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:46:50,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [889073402] [2023-12-21 13:46:50,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:46:50,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:46:50,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:46:50,117 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 13:46:50,138 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-21 13:46:50,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:46:50,252 INFO L262 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-21 13:46:50,257 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:46:50,801 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:46:50,801 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 13:46:51,557 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:46:51,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [889073402] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 13:46:51,557 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 13:46:51,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11, 11] total 28 [2023-12-21 13:46:51,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022260138] [2023-12-21 13:46:51,557 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 13:46:51,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-12-21 13:46:51,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:46:51,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-12-21 13:46:51,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=698, Unknown=0, NotChecked=0, Total=812 [2023-12-21 13:46:51,559 INFO L87 Difference]: Start difference. First operand 44303 states and 57331 transitions. Second operand has 29 states, 29 states have (on average 10.068965517241379) internal successors, (292), 28 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:47:00,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:47:00,893 INFO L93 Difference]: Finished difference Result 229622 states and 290311 transitions. [2023-12-21 13:47:00,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2023-12-21 13:47:00,894 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 10.068965517241379) internal successors, (292), 28 states have internal predecessors, (292), 0 states have call successors, (0), 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 102 [2023-12-21 13:47:00,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:47:01,144 INFO L225 Difference]: With dead ends: 229622 [2023-12-21 13:47:01,145 INFO L226 Difference]: Without dead ends: 211576 [2023-12-21 13:47:01,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 404 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 221 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19023 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=8801, Invalid=40705, Unknown=0, NotChecked=0, Total=49506 [2023-12-21 13:47:01,188 INFO L413 NwaCegarLoop]: 298 mSDtfsCounter, 3609 mSDsluCounter, 4346 mSDsCounter, 0 mSdLazyCounter, 3786 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3609 SdHoareTripleChecker+Valid, 4644 SdHoareTripleChecker+Invalid, 3847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 3786 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-21 13:47:01,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3609 Valid, 4644 Invalid, 3847 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 3786 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-21 13:47:01,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211576 states. [2023-12-21 13:47:02,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211576 to 44229. [2023-12-21 13:47:02,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44229 states, 44228 states have (on average 1.294474088812517) internal successors, (57252), 44228 states have internal predecessors, (57252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:47:02,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44229 states to 44229 states and 57252 transitions. [2023-12-21 13:47:02,584 INFO L78 Accepts]: Start accepts. Automaton has 44229 states and 57252 transitions. Word has length 102 [2023-12-21 13:47:02,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:47:02,585 INFO L495 AbstractCegarLoop]: Abstraction has 44229 states and 57252 transitions. [2023-12-21 13:47:02,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 10.068965517241379) internal successors, (292), 28 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:47:02,585 INFO L276 IsEmpty]: Start isEmpty. Operand 44229 states and 57252 transitions. [2023-12-21 13:47:02,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-21 13:47:02,588 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:47:02,588 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 13:47:02,593 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-21 13:47:02,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2023-12-21 13:47:02,789 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:47:02,790 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:47:02,790 INFO L85 PathProgramCache]: Analyzing trace with hash -754638916, now seen corresponding path program 1 times [2023-12-21 13:47:02,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:47:02,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826251958] [2023-12-21 13:47:02,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:47:02,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:47:02,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:47:03,587 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:47:03,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:47:03,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826251958] [2023-12-21 13:47:03,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826251958] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:47:03,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1477569407] [2023-12-21 13:47:03,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:47:03,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:47:03,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:47:03,589 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 13:47:03,613 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-21 13:47:03,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:47:03,725 INFO L262 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-21 13:47:03,728 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:47:04,611 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:47:04,611 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 13:47:05,863 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:47:05,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1477569407] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 13:47:05,863 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 13:47:05,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 16, 15] total 43 [2023-12-21 13:47:05,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644878362] [2023-12-21 13:47:05,864 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 13:47:05,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2023-12-21 13:47:05,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:47:05,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2023-12-21 13:47:05,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=1657, Unknown=0, NotChecked=0, Total=1806 [2023-12-21 13:47:05,865 INFO L87 Difference]: Start difference. First operand 44229 states and 57252 transitions. Second operand has 43 states, 43 states have (on average 6.116279069767442) internal successors, (263), 43 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:47:22,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:47:22,559 INFO L93 Difference]: Finished difference Result 240214 states and 309820 transitions. [2023-12-21 13:47:22,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 229 states. [2023-12-21 13:47:22,559 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 6.116279069767442) internal successors, (263), 43 states have internal predecessors, (263), 0 states have call successors, (0), 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 102 [2023-12-21 13:47:22,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:47:22,789 INFO L225 Difference]: With dead ends: 240214 [2023-12-21 13:47:22,789 INFO L226 Difference]: Without dead ends: 202241 [2023-12-21 13:47:23,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 444 GetRequests, 178 SyntacticMatches, 1 SemanticMatches, 265 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25668 ImplicationChecksByTransitivity, 12.2s TimeCoverageRelationStatistics Valid=6609, Invalid=64413, Unknown=0, NotChecked=0, Total=71022 [2023-12-21 13:47:23,061 INFO L413 NwaCegarLoop]: 697 mSDtfsCounter, 9736 mSDsluCounter, 18432 mSDsCounter, 0 mSdLazyCounter, 8771 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9736 SdHoareTripleChecker+Valid, 19129 SdHoareTripleChecker+Invalid, 8833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 8771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-12-21 13:47:23,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9736 Valid, 19129 Invalid, 8833 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [62 Valid, 8771 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2023-12-21 13:47:23,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202241 states. [2023-12-21 13:47:24,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202241 to 28265. [2023-12-21 13:47:24,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28265 states, 28264 states have (on average 1.2958887630908575) internal successors, (36627), 28264 states have internal predecessors, (36627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:47:24,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28265 states to 28265 states and 36627 transitions. [2023-12-21 13:47:24,297 INFO L78 Accepts]: Start accepts. Automaton has 28265 states and 36627 transitions. Word has length 102 [2023-12-21 13:47:24,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:47:24,297 INFO L495 AbstractCegarLoop]: Abstraction has 28265 states and 36627 transitions. [2023-12-21 13:47:24,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 6.116279069767442) internal successors, (263), 43 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:47:24,297 INFO L276 IsEmpty]: Start isEmpty. Operand 28265 states and 36627 transitions. [2023-12-21 13:47:24,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-21 13:47:24,299 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:47:24,300 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 13:47:24,308 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-21 13:47:24,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2023-12-21 13:47:24,505 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:47:24,506 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:47:24,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1090691830, now seen corresponding path program 1 times [2023-12-21 13:47:24,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:47:24,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463872920] [2023-12-21 13:47:24,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:47:24,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:47:24,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:47:24,829 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:47:24,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:47:24,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463872920] [2023-12-21 13:47:24,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463872920] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:47:24,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [112847532] [2023-12-21 13:47:24,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:47:24,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:47:24,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:47:24,831 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 13:47:24,832 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-21 13:47:24,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:47:24,971 INFO L262 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-21 13:47:24,973 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:47:25,535 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:47:25,535 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 13:47:26,008 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:47:26,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [112847532] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 13:47:26,008 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 13:47:26,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11, 11] total 29 [2023-12-21 13:47:26,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096214056] [2023-12-21 13:47:26,008 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 13:47:26,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-12-21 13:47:26,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:47:26,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-12-21 13:47:26,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=712, Unknown=0, NotChecked=0, Total=812 [2023-12-21 13:47:26,009 INFO L87 Difference]: Start difference. First operand 28265 states and 36627 transitions. Second operand has 29 states, 29 states have (on average 8.758620689655173) internal successors, (254), 29 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:47:27,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:47:27,590 INFO L93 Difference]: Finished difference Result 102194 states and 131340 transitions. [2023-12-21 13:47:27,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-12-21 13:47:27,591 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 8.758620689655173) internal successors, (254), 29 states have internal predecessors, (254), 0 states have call successors, (0), 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 103 [2023-12-21 13:47:27,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:47:27,668 INFO L225 Difference]: With dead ends: 102194 [2023-12-21 13:47:27,668 INFO L226 Difference]: Without dead ends: 80237 [2023-12-21 13:47:27,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 190 SyntacticMatches, 1 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 724 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=883, Invalid=3023, Unknown=0, NotChecked=0, Total=3906 [2023-12-21 13:47:27,696 INFO L413 NwaCegarLoop]: 274 mSDtfsCounter, 2030 mSDsluCounter, 4491 mSDsCounter, 0 mSdLazyCounter, 1173 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2030 SdHoareTripleChecker+Valid, 4765 SdHoareTripleChecker+Invalid, 1178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-21 13:47:27,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2030 Valid, 4765 Invalid, 1178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1173 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-21 13:47:27,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80237 states. [2023-12-21 13:47:28,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80237 to 36500. [2023-12-21 13:47:28,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36500 states, 36499 states have (on average 1.2963368859420805) internal successors, (47315), 36499 states have internal predecessors, (47315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:47:28,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36500 states to 36500 states and 47315 transitions. [2023-12-21 13:47:28,254 INFO L78 Accepts]: Start accepts. Automaton has 36500 states and 47315 transitions. Word has length 103 [2023-12-21 13:47:28,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:47:28,254 INFO L495 AbstractCegarLoop]: Abstraction has 36500 states and 47315 transitions. [2023-12-21 13:47:28,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 8.758620689655173) internal successors, (254), 29 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:47:28,255 INFO L276 IsEmpty]: Start isEmpty. Operand 36500 states and 47315 transitions. [2023-12-21 13:47:28,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-21 13:47:28,257 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:47:28,257 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 13:47:28,262 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-12-21 13:47:28,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:47:28,458 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:47:28,459 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:47:28,459 INFO L85 PathProgramCache]: Analyzing trace with hash 901802335, now seen corresponding path program 1 times [2023-12-21 13:47:28,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:47:28,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309000843] [2023-12-21 13:47:28,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:47:28,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:47:28,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:47:28,951 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:47:28,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:47:28,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309000843] [2023-12-21 13:47:28,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309000843] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:47:28,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1945708062] [2023-12-21 13:47:28,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:47:28,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:47:28,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:47:28,953 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 13:47:28,954 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-21 13:47:29,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:47:29,085 INFO L262 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-21 13:47:29,088 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:47:30,166 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:47:30,167 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 13:47:31,764 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:47:31,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1945708062] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 13:47:31,765 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 13:47:31,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 16, 16] total 45 [2023-12-21 13:47:31,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513393097] [2023-12-21 13:47:31,765 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 13:47:31,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2023-12-21 13:47:31,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:47:31,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2023-12-21 13:47:31,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=1833, Unknown=0, NotChecked=0, Total=1980 [2023-12-21 13:47:31,766 INFO L87 Difference]: Start difference. First operand 36500 states and 47315 transitions. Second operand has 45 states, 45 states have (on average 6.288888888888889) internal successors, (283), 45 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:47:44,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:47:44,443 INFO L93 Difference]: Finished difference Result 285831 states and 363791 transitions. [2023-12-21 13:47:44,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 162 states. [2023-12-21 13:47:44,443 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 6.288888888888889) internal successors, (283), 45 states have internal predecessors, (283), 0 states have call successors, (0), 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 103 [2023-12-21 13:47:44,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:47:45,159 INFO L225 Difference]: With dead ends: 285831 [2023-12-21 13:47:45,159 INFO L226 Difference]: Without dead ends: 268254 [2023-12-21 13:47:45,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 378 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 199 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12533 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=3852, Invalid=36348, Unknown=0, NotChecked=0, Total=40200 [2023-12-21 13:47:45,272 INFO L413 NwaCegarLoop]: 1002 mSDtfsCounter, 5169 mSDsluCounter, 22917 mSDsCounter, 0 mSdLazyCounter, 7736 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5169 SdHoareTripleChecker+Valid, 23919 SdHoareTripleChecker+Invalid, 7759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 7736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-12-21 13:47:45,276 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5169 Valid, 23919 Invalid, 7759 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [23 Valid, 7736 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-12-21 13:47:45,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268254 states. [2023-12-21 13:47:47,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268254 to 64944. [2023-12-21 13:47:47,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64944 states, 64943 states have (on average 1.297045101088647) internal successors, (84234), 64943 states have internal predecessors, (84234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:47:47,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64944 states to 64944 states and 84234 transitions. [2023-12-21 13:47:47,263 INFO L78 Accepts]: Start accepts. Automaton has 64944 states and 84234 transitions. Word has length 103 [2023-12-21 13:47:47,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:47:47,263 INFO L495 AbstractCegarLoop]: Abstraction has 64944 states and 84234 transitions. [2023-12-21 13:47:47,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 6.288888888888889) internal successors, (283), 45 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:47:47,263 INFO L276 IsEmpty]: Start isEmpty. Operand 64944 states and 84234 transitions. [2023-12-21 13:47:47,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-21 13:47:47,267 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:47:47,268 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 13:47:47,272 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-21 13:47:47,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:47:47,471 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:47:47,472 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:47:47,472 INFO L85 PathProgramCache]: Analyzing trace with hash 205641930, now seen corresponding path program 1 times [2023-12-21 13:47:47,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:47:47,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938648639] [2023-12-21 13:47:47,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:47:47,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:47:47,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:47:47,665 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:47:47,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:47:47,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938648639] [2023-12-21 13:47:47,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938648639] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:47:47,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [236132611] [2023-12-21 13:47:47,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:47:47,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:47:47,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:47:47,667 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 13:47:47,671 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-21 13:47:47,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:47:47,817 INFO L262 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-21 13:47:47,819 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:47:48,402 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:47:48,402 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 13:47:48,849 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:47:48,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [236132611] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 13:47:48,849 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 13:47:48,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11, 10] total 26 [2023-12-21 13:47:48,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268772432] [2023-12-21 13:47:48,850 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 13:47:48,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-21 13:47:48,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:47:48,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-21 13:47:48,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=574, Unknown=0, NotChecked=0, Total=650 [2023-12-21 13:47:48,851 INFO L87 Difference]: Start difference. First operand 64944 states and 84234 transitions. Second operand has 26 states, 26 states have (on average 10.653846153846153) internal successors, (277), 26 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:47:54,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:47:54,751 INFO L93 Difference]: Finished difference Result 273980 states and 350324 transitions. [2023-12-21 13:47:54,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2023-12-21 13:47:54,752 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 10.653846153846153) internal successors, (277), 26 states have internal predecessors, (277), 0 states have call successors, (0), 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 103 [2023-12-21 13:47:54,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:47:55,038 INFO L225 Difference]: With dead ends: 273980 [2023-12-21 13:47:55,039 INFO L226 Difference]: Without dead ends: 227495 [2023-12-21 13:47:55,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5469 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=2904, Invalid=13866, Unknown=0, NotChecked=0, Total=16770 [2023-12-21 13:47:55,103 INFO L413 NwaCegarLoop]: 319 mSDtfsCounter, 3717 mSDsluCounter, 4117 mSDsCounter, 0 mSdLazyCounter, 3120 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3717 SdHoareTripleChecker+Valid, 4436 SdHoareTripleChecker+Invalid, 3165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 3120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-21 13:47:55,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3717 Valid, 4436 Invalid, 3165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 3120 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-21 13:47:55,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227495 states. [2023-12-21 13:47:56,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227495 to 104096. [2023-12-21 13:47:57,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104096 states, 104095 states have (on average 1.2893510735385945) internal successors, (134215), 104095 states have internal predecessors, (134215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:47:57,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104096 states to 104096 states and 134215 transitions. [2023-12-21 13:47:57,175 INFO L78 Accepts]: Start accepts. Automaton has 104096 states and 134215 transitions. Word has length 103 [2023-12-21 13:47:57,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:47:57,175 INFO L495 AbstractCegarLoop]: Abstraction has 104096 states and 134215 transitions. [2023-12-21 13:47:57,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 10.653846153846153) internal successors, (277), 26 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:47:57,175 INFO L276 IsEmpty]: Start isEmpty. Operand 104096 states and 134215 transitions. [2023-12-21 13:47:57,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-21 13:47:57,180 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:47:57,180 INFO L195 NwaCegarLoop]: trace histogram [2, 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] [2023-12-21 13:47:57,185 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-12-21 13:47:57,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2023-12-21 13:47:57,382 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:47:57,382 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:47:57,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1871551219, now seen corresponding path program 1 times [2023-12-21 13:47:57,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:47:57,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460559352] [2023-12-21 13:47:57,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:47:57,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:47:57,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:47:57,657 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:47:57,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:47:57,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460559352] [2023-12-21 13:47:57,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460559352] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:47:57,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:47:57,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:47:57,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425406814] [2023-12-21 13:47:57,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:47:57,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:47:57,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:47:57,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:47:57,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:47:57,659 INFO L87 Difference]: Start difference. First operand 104096 states and 134215 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:47:58,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:47:58,116 INFO L93 Difference]: Finished difference Result 155199 states and 198815 transitions. [2023-12-21 13:47:58,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:47:58,117 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 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 104 [2023-12-21 13:47:58,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:47:58,172 INFO L225 Difference]: With dead ends: 155199 [2023-12-21 13:47:58,173 INFO L226 Difference]: Without dead ends: 51402 [2023-12-21 13:47:58,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:47:58,210 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 56 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:47:58,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 206 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:47:58,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51402 states. [2023-12-21 13:47:58,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51402 to 50136. [2023-12-21 13:47:58,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50136 states, 50135 states have (on average 1.2468335494165752) internal successors, (62510), 50135 states have internal predecessors, (62510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:47:58,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50136 states to 50136 states and 62510 transitions. [2023-12-21 13:47:58,706 INFO L78 Accepts]: Start accepts. Automaton has 50136 states and 62510 transitions. Word has length 104 [2023-12-21 13:47:58,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:47:58,706 INFO L495 AbstractCegarLoop]: Abstraction has 50136 states and 62510 transitions. [2023-12-21 13:47:58,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:47:58,706 INFO L276 IsEmpty]: Start isEmpty. Operand 50136 states and 62510 transitions. [2023-12-21 13:47:58,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-21 13:47:58,709 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:47:58,709 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 13:47:58,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2023-12-21 13:47:58,710 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:47:58,710 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:47:58,710 INFO L85 PathProgramCache]: Analyzing trace with hash 331856307, now seen corresponding path program 1 times [2023-12-21 13:47:58,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:47:58,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007593512] [2023-12-21 13:47:58,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:47:58,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:47:58,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:47:59,693 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:47:59,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:47:59,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007593512] [2023-12-21 13:47:59,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007593512] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:47:59,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1106525912] [2023-12-21 13:47:59,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:47:59,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:47:59,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:47:59,695 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 13:47:59,697 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-21 13:47:59,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:47:59,826 INFO L262 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-21 13:47:59,828 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:47:59,994 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-21 13:47:59,995 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 13:48:00,173 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-21 13:48:00,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1106525912] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 13:48:00,173 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 13:48:00,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 5, 5] total 27 [2023-12-21 13:48:00,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903515554] [2023-12-21 13:48:00,173 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 13:48:00,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-12-21 13:48:00,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:48:00,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-12-21 13:48:00,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=632, Unknown=0, NotChecked=0, Total=702 [2023-12-21 13:48:00,175 INFO L87 Difference]: Start difference. First operand 50136 states and 62510 transitions. Second operand has 27 states, 27 states have (on average 10.962962962962964) internal successors, (296), 27 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:48:02,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:48:02,446 INFO L93 Difference]: Finished difference Result 114855 states and 141649 transitions. [2023-12-21 13:48:02,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-12-21 13:48:02,446 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 10.962962962962964) internal successors, (296), 27 states have internal predecessors, (296), 0 states have call successors, (0), 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 104 [2023-12-21 13:48:02,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:48:02,523 INFO L225 Difference]: With dead ends: 114855 [2023-12-21 13:48:02,523 INFO L226 Difference]: Without dead ends: 65004 [2023-12-21 13:48:02,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 785 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=618, Invalid=3414, Unknown=0, NotChecked=0, Total=4032 [2023-12-21 13:48:02,539 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 1942 mSDsluCounter, 2721 mSDsCounter, 0 mSdLazyCounter, 2063 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1942 SdHoareTripleChecker+Valid, 2895 SdHoareTripleChecker+Invalid, 2076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 2063 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:48:02,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1942 Valid, 2895 Invalid, 2076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 2063 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-21 13:48:02,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65004 states. [2023-12-21 13:48:03,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65004 to 51608. [2023-12-21 13:48:03,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51608 states, 51607 states have (on average 1.2446373553975236) internal successors, (64232), 51607 states have internal predecessors, (64232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:48:03,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51608 states to 51608 states and 64232 transitions. [2023-12-21 13:48:03,093 INFO L78 Accepts]: Start accepts. Automaton has 51608 states and 64232 transitions. Word has length 104 [2023-12-21 13:48:03,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:48:03,094 INFO L495 AbstractCegarLoop]: Abstraction has 51608 states and 64232 transitions. [2023-12-21 13:48:03,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 10.962962962962964) internal successors, (296), 27 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:48:03,094 INFO L276 IsEmpty]: Start isEmpty. Operand 51608 states and 64232 transitions. [2023-12-21 13:48:03,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-21 13:48:03,096 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:48:03,096 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 13:48:03,101 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-21 13:48:03,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:48:03,297 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:48:03,298 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:48:03,298 INFO L85 PathProgramCache]: Analyzing trace with hash -957060298, now seen corresponding path program 1 times [2023-12-21 13:48:03,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:48:03,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489965174] [2023-12-21 13:48:03,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:48:03,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:48:03,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:48:03,330 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-21 13:48:03,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:48:03,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489965174] [2023-12-21 13:48:03,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489965174] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:48:03,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:48:03,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:48:03,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454238884] [2023-12-21 13:48:03,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:48:03,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:48:03,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:48:03,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:48:03,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:48:03,331 INFO L87 Difference]: Start difference. First operand 51608 states and 64232 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:48:03,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:48:03,490 INFO L93 Difference]: Finished difference Result 83989 states and 104843 transitions. [2023-12-21 13:48:03,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:48:03,491 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 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 104 [2023-12-21 13:48:03,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:48:03,521 INFO L225 Difference]: With dead ends: 83989 [2023-12-21 13:48:03,521 INFO L226 Difference]: Without dead ends: 33115 [2023-12-21 13:48:03,544 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:48:03,544 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 82 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:48:03,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 120 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:48:03,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33115 states. [2023-12-21 13:48:03,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33115 to 33115. [2023-12-21 13:48:03,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33115 states, 33114 states have (on average 1.2296007730869118) internal successors, (40717), 33114 states have internal predecessors, (40717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:48:04,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33115 states to 33115 states and 40717 transitions. [2023-12-21 13:48:04,007 INFO L78 Accepts]: Start accepts. Automaton has 33115 states and 40717 transitions. Word has length 104 [2023-12-21 13:48:04,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:48:04,007 INFO L495 AbstractCegarLoop]: Abstraction has 33115 states and 40717 transitions. [2023-12-21 13:48:04,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:48:04,007 INFO L276 IsEmpty]: Start isEmpty. Operand 33115 states and 40717 transitions. [2023-12-21 13:48:04,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-21 13:48:04,009 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:48:04,009 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 13:48:04,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2023-12-21 13:48:04,009 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:48:04,009 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:48:04,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1414774338, now seen corresponding path program 1 times [2023-12-21 13:48:04,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:48:04,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664047220] [2023-12-21 13:48:04,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:48:04,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:48:04,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:48:05,287 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:48:05,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:48:05,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664047220] [2023-12-21 13:48:05,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664047220] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:48:05,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1701583890] [2023-12-21 13:48:05,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:48:05,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:48:05,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:48:05,289 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 13:48:05,313 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-21 13:48:05,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:48:05,424 INFO L262 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-21 13:48:05,426 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:48:06,112 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:48:06,113 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 13:48:06,701 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:48:06,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1701583890] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 13:48:06,702 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 13:48:06,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 12, 11] total 43 [2023-12-21 13:48:06,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615943521] [2023-12-21 13:48:06,702 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 13:48:06,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2023-12-21 13:48:06,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:48:06,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2023-12-21 13:48:06,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=1682, Unknown=0, NotChecked=0, Total=1806 [2023-12-21 13:48:06,703 INFO L87 Difference]: Start difference. First operand 33115 states and 40717 transitions. Second operand has 43 states, 43 states have (on average 6.558139534883721) internal successors, (282), 43 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:48:12,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:48:12,176 INFO L93 Difference]: Finished difference Result 55831 states and 68615 transitions. [2023-12-21 13:48:12,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2023-12-21 13:48:12,176 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 6.558139534883721) internal successors, (282), 43 states have internal predecessors, (282), 0 states have call successors, (0), 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 104 [2023-12-21 13:48:12,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:48:12,217 INFO L225 Difference]: With dead ends: 55831 [2023-12-21 13:48:12,218 INFO L226 Difference]: Without dead ends: 44613 [2023-12-21 13:48:12,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 188 SyntacticMatches, 2 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2259 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=1596, Invalid=9116, Unknown=0, NotChecked=0, Total=10712 [2023-12-21 13:48:12,233 INFO L413 NwaCegarLoop]: 366 mSDtfsCounter, 2483 mSDsluCounter, 8138 mSDsCounter, 0 mSdLazyCounter, 4241 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2483 SdHoareTripleChecker+Valid, 8504 SdHoareTripleChecker+Invalid, 4252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 4241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:48:12,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2483 Valid, 8504 Invalid, 4252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 4241 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-21 13:48:12,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44613 states. [2023-12-21 13:48:12,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44613 to 34861. [2023-12-21 13:48:12,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34861 states, 34860 states have (on average 1.227882960413081) internal successors, (42804), 34860 states have internal predecessors, (42804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:48:12,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34861 states to 34861 states and 42804 transitions. [2023-12-21 13:48:12,555 INFO L78 Accepts]: Start accepts. Automaton has 34861 states and 42804 transitions. Word has length 104 [2023-12-21 13:48:12,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:48:12,556 INFO L495 AbstractCegarLoop]: Abstraction has 34861 states and 42804 transitions. [2023-12-21 13:48:12,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 6.558139534883721) internal successors, (282), 43 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:48:12,556 INFO L276 IsEmpty]: Start isEmpty. Operand 34861 states and 42804 transitions. [2023-12-21 13:48:12,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-21 13:48:12,557 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:48:12,557 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 13:48:12,564 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-12-21 13:48:12,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2023-12-21 13:48:12,758 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:48:12,758 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:48:12,758 INFO L85 PathProgramCache]: Analyzing trace with hash -2136890981, now seen corresponding path program 1 times [2023-12-21 13:48:12,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:48:12,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370621250] [2023-12-21 13:48:12,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:48:12,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:48:12,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:48:13,486 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:48:13,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:48:13,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370621250] [2023-12-21 13:48:13,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370621250] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:48:13,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [541849905] [2023-12-21 13:48:13,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:48:13,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:48:13,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:48:13,488 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 13:48:13,518 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-21 13:48:13,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:48:13,628 INFO L262 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-21 13:48:13,630 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:48:14,284 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:48:14,285 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 13:48:14,762 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:48:14,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [541849905] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 13:48:14,762 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 13:48:14,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 12, 11] total 37 [2023-12-21 13:48:14,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537178365] [2023-12-21 13:48:14,762 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 13:48:14,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2023-12-21 13:48:14,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:48:14,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2023-12-21 13:48:14,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=1210, Unknown=0, NotChecked=0, Total=1332 [2023-12-21 13:48:14,763 INFO L87 Difference]: Start difference. First operand 34861 states and 42804 transitions. Second operand has 37 states, 37 states have (on average 7.594594594594595) internal successors, (281), 37 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:48:18,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:48:18,521 INFO L93 Difference]: Finished difference Result 66499 states and 81270 transitions. [2023-12-21 13:48:18,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2023-12-21 13:48:18,521 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 7.594594594594595) internal successors, (281), 37 states have internal predecessors, (281), 0 states have call successors, (0), 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 104 [2023-12-21 13:48:18,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:48:18,578 INFO L225 Difference]: With dead ends: 66499 [2023-12-21 13:48:18,578 INFO L226 Difference]: Without dead ends: 56257 [2023-12-21 13:48:18,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1401 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1046, Invalid=5434, Unknown=0, NotChecked=0, Total=6480 [2023-12-21 13:48:18,597 INFO L413 NwaCegarLoop]: 480 mSDtfsCounter, 2682 mSDsluCounter, 9881 mSDsCounter, 0 mSdLazyCounter, 2847 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2682 SdHoareTripleChecker+Valid, 10361 SdHoareTripleChecker+Invalid, 2857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 2847 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-21 13:48:18,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2682 Valid, 10361 Invalid, 2857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 2847 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-21 13:48:18,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56257 states. [2023-12-21 13:48:18,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56257 to 34990. [2023-12-21 13:48:18,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34990 states, 34989 states have (on average 1.2270142044642602) internal successors, (42932), 34989 states have internal predecessors, (42932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:48:19,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34990 states to 34990 states and 42932 transitions. [2023-12-21 13:48:19,016 INFO L78 Accepts]: Start accepts. Automaton has 34990 states and 42932 transitions. Word has length 104 [2023-12-21 13:48:19,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:48:19,016 INFO L495 AbstractCegarLoop]: Abstraction has 34990 states and 42932 transitions. [2023-12-21 13:48:19,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 7.594594594594595) internal successors, (281), 37 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:48:19,016 INFO L276 IsEmpty]: Start isEmpty. Operand 34990 states and 42932 transitions. [2023-12-21 13:48:19,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-21 13:48:19,018 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:48:19,018 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 13:48:19,024 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-12-21 13:48:19,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2023-12-21 13:48:19,218 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:48:19,219 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:48:19,219 INFO L85 PathProgramCache]: Analyzing trace with hash 713554370, now seen corresponding path program 1 times [2023-12-21 13:48:19,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:48:19,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881615543] [2023-12-21 13:48:19,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:48:19,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:48:19,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:48:19,384 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:48:19,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:48:19,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881615543] [2023-12-21 13:48:19,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881615543] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:48:19,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1659661329] [2023-12-21 13:48:19,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:48:19,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:48:19,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:48:19,385 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 13:48:19,391 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-21 13:48:19,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:48:19,520 INFO L262 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-21 13:48:19,523 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:48:20,127 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:48:20,127 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 13:48:20,623 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:48:20,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1659661329] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 13:48:20,623 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 13:48:20,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 9] total 20 [2023-12-21 13:48:20,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221865978] [2023-12-21 13:48:20,623 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 13:48:20,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-21 13:48:20,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:48:20,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-21 13:48:20,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=317, Unknown=0, NotChecked=0, Total=380 [2023-12-21 13:48:20,624 INFO L87 Difference]: Start difference. First operand 34990 states and 42932 transitions. Second operand has 20 states, 20 states have (on average 12.9) internal successors, (258), 20 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:48:21,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:48:21,513 INFO L93 Difference]: Finished difference Result 67421 states and 82929 transitions. [2023-12-21 13:48:21,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-21 13:48:21,514 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 12.9) internal successors, (258), 20 states have internal predecessors, (258), 0 states have call successors, (0), 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 104 [2023-12-21 13:48:21,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:48:21,555 INFO L225 Difference]: With dead ends: 67421 [2023-12-21 13:48:21,555 INFO L226 Difference]: Without dead ends: 46313 [2023-12-21 13:48:21,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 195 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=257, Invalid=933, Unknown=0, NotChecked=0, Total=1190 [2023-12-21 13:48:21,575 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 1041 mSDsluCounter, 978 mSDsCounter, 0 mSdLazyCounter, 863 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1041 SdHoareTripleChecker+Valid, 1127 SdHoareTripleChecker+Invalid, 871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 863 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 13:48:21,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1041 Valid, 1127 Invalid, 871 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 863 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 13:48:21,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46313 states. [2023-12-21 13:48:21,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46313 to 31430. [2023-12-21 13:48:21,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31430 states, 31429 states have (on average 1.226669636323141) internal successors, (38553), 31429 states have internal predecessors, (38553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:48:22,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31430 states to 31430 states and 38553 transitions. [2023-12-21 13:48:22,015 INFO L78 Accepts]: Start accepts. Automaton has 31430 states and 38553 transitions. Word has length 104 [2023-12-21 13:48:22,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:48:22,015 INFO L495 AbstractCegarLoop]: Abstraction has 31430 states and 38553 transitions. [2023-12-21 13:48:22,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 12.9) internal successors, (258), 20 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:48:22,016 INFO L276 IsEmpty]: Start isEmpty. Operand 31430 states and 38553 transitions. [2023-12-21 13:48:22,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-21 13:48:22,017 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:48:22,017 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 13:48:22,021 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-12-21 13:48:22,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2023-12-21 13:48:22,218 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:48:22,218 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:48:22,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1638980956, now seen corresponding path program 1 times [2023-12-21 13:48:22,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:48:22,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832146035] [2023-12-21 13:48:22,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:48:22,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:48:22,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:48:22,240 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-21 13:48:22,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:48:22,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832146035] [2023-12-21 13:48:22,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832146035] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:48:22,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:48:22,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:48:22,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63965475] [2023-12-21 13:48:22,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:48:22,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:48:22,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:48:22,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:48:22,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:48:22,242 INFO L87 Difference]: Start difference. First operand 31430 states and 38553 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) [2023-12-21 13:48:22,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:48:22,367 INFO L93 Difference]: Finished difference Result 56976 states and 70187 transitions. [2023-12-21 13:48:22,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:48:22,367 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 105 [2023-12-21 13:48:22,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:48:22,394 INFO L225 Difference]: With dead ends: 56976 [2023-12-21 13:48:22,394 INFO L226 Difference]: Without dead ends: 25878 [2023-12-21 13:48:22,412 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:48:22,412 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 78 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:48:22,412 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 123 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:48:22,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25878 states. [2023-12-21 13:48:22,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25878 to 25878. [2023-12-21 13:48:22,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25878 states, 25877 states have (on average 1.2144375313985392) internal successors, (31426), 25877 states have internal predecessors, (31426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:48:22,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25878 states to 25878 states and 31426 transitions. [2023-12-21 13:48:22,636 INFO L78 Accepts]: Start accepts. Automaton has 25878 states and 31426 transitions. Word has length 105 [2023-12-21 13:48:22,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:48:22,637 INFO L495 AbstractCegarLoop]: Abstraction has 25878 states and 31426 transitions. [2023-12-21 13:48:22,637 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) [2023-12-21 13:48:22,637 INFO L276 IsEmpty]: Start isEmpty. Operand 25878 states and 31426 transitions. [2023-12-21 13:48:22,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-21 13:48:22,637 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:48:22,638 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 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] [2023-12-21 13:48:22,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2023-12-21 13:48:22,638 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:48:22,638 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:48:22,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1446226161, now seen corresponding path program 1 times [2023-12-21 13:48:22,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:48:22,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27721844] [2023-12-21 13:48:22,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:48:22,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:48:22,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:48:22,681 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:48:22,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:48:22,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27721844] [2023-12-21 13:48:22,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27721844] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:48:22,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:48:22,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:48:22,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413497771] [2023-12-21 13:48:22,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:48:22,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:48:22,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:48:22,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:48:22,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:48:22,682 INFO L87 Difference]: Start difference. First operand 25878 states and 31426 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:48:22,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:48:22,738 INFO L93 Difference]: Finished difference Result 31171 states and 37749 transitions. [2023-12-21 13:48:22,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:48:22,738 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2023-12-21 13:48:22,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:48:22,743 INFO L225 Difference]: With dead ends: 31171 [2023-12-21 13:48:22,743 INFO L226 Difference]: Without dead ends: 5739 [2023-12-21 13:48:22,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:48:22,753 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 41 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:48:22,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 191 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:48:22,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5739 states. [2023-12-21 13:48:22,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5739 to 5737. [2023-12-21 13:48:22,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5737 states, 5736 states have (on average 1.1694560669456067) internal successors, (6708), 5736 states have internal predecessors, (6708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:48:22,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5737 states to 5737 states and 6708 transitions. [2023-12-21 13:48:22,788 INFO L78 Accepts]: Start accepts. Automaton has 5737 states and 6708 transitions. Word has length 105 [2023-12-21 13:48:22,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:48:22,788 INFO L495 AbstractCegarLoop]: Abstraction has 5737 states and 6708 transitions. [2023-12-21 13:48:22,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:48:22,789 INFO L276 IsEmpty]: Start isEmpty. Operand 5737 states and 6708 transitions. [2023-12-21 13:48:22,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-21 13:48:22,789 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:48:22,789 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 13:48:22,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2023-12-21 13:48:22,790 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:48:22,790 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:48:22,790 INFO L85 PathProgramCache]: Analyzing trace with hash -828830719, now seen corresponding path program 1 times [2023-12-21 13:48:22,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:48:22,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483122521] [2023-12-21 13:48:22,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:48:22,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:48:22,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:48:23,365 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:48:23,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:48:23,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483122521] [2023-12-21 13:48:23,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483122521] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:48:23,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1973491745] [2023-12-21 13:48:23,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:48:23,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:48:23,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:48:23,367 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 13:48:23,368 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-12-21 13:48:23,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:48:23,480 INFO L262 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-21 13:48:23,481 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:48:24,497 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:48:24,497 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 13:48:26,113 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:48:26,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1973491745] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 13:48:26,114 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 13:48:26,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 18, 18] total 49 [2023-12-21 13:48:26,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340458149] [2023-12-21 13:48:26,114 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 13:48:26,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2023-12-21 13:48:26,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:48:26,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2023-12-21 13:48:26,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=205, Invalid=2147, Unknown=0, NotChecked=0, Total=2352 [2023-12-21 13:48:26,115 INFO L87 Difference]: Start difference. First operand 5737 states and 6708 transitions. Second operand has 49 states, 49 states have (on average 5.918367346938775) internal successors, (290), 49 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) [2023-12-21 13:48:33,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:48:33,293 INFO L93 Difference]: Finished difference Result 14179 states and 16539 transitions. [2023-12-21 13:48:33,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2023-12-21 13:48:33,296 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 5.918367346938775) internal successors, (290), 49 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) Word has length 105 [2023-12-21 13:48:33,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:48:33,304 INFO L225 Difference]: With dead ends: 14179 [2023-12-21 13:48:33,304 INFO L226 Difference]: Without dead ends: 10723 [2023-12-21 13:48:33,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5847 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=3123, Invalid=16617, Unknown=0, NotChecked=0, Total=19740 [2023-12-21 13:48:33,308 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 4326 mSDsluCounter, 3688 mSDsCounter, 0 mSdLazyCounter, 3070 mSolverCounterSat, 171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4326 SdHoareTripleChecker+Valid, 3905 SdHoareTripleChecker+Invalid, 3241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 171 IncrementalHoareTripleChecker+Valid, 3070 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-21 13:48:33,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4326 Valid, 3905 Invalid, 3241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [171 Valid, 3070 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-21 13:48:33,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10723 states. [2023-12-21 13:48:33,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10723 to 6077. [2023-12-21 13:48:33,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6077 states, 6076 states have (on average 1.1670506912442395) internal successors, (7091), 6076 states have internal predecessors, (7091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:48:33,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6077 states to 6077 states and 7091 transitions. [2023-12-21 13:48:33,359 INFO L78 Accepts]: Start accepts. Automaton has 6077 states and 7091 transitions. Word has length 105 [2023-12-21 13:48:33,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:48:33,360 INFO L495 AbstractCegarLoop]: Abstraction has 6077 states and 7091 transitions. [2023-12-21 13:48:33,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 5.918367346938775) internal successors, (290), 49 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) [2023-12-21 13:48:33,360 INFO L276 IsEmpty]: Start isEmpty. Operand 6077 states and 7091 transitions. [2023-12-21 13:48:33,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-21 13:48:33,360 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:48:33,360 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 13:48:33,365 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-12-21 13:48:33,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable51 [2023-12-21 13:48:33,561 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:48:33,561 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:48:33,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1561714498, now seen corresponding path program 1 times [2023-12-21 13:48:33,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:48:33,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098089458] [2023-12-21 13:48:33,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:48:33,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:48:33,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:48:34,438 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:48:34,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:48:34,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098089458] [2023-12-21 13:48:34,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098089458] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:48:34,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [585047319] [2023-12-21 13:48:34,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:48:34,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:48:34,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:48:34,439 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 13:48:34,443 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-12-21 13:48:34,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:48:34,581 INFO L262 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 40 conjunts are in the unsatisfiable core [2023-12-21 13:48:34,582 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:48:36,232 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:48:36,232 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 13:48:38,035 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:48:38,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [585047319] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 13:48:38,035 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 13:48:38,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 20, 19] total 59 [2023-12-21 13:48:38,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322934016] [2023-12-21 13:48:38,036 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 13:48:38,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2023-12-21 13:48:38,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:48:38,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2023-12-21 13:48:38,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=279, Invalid=3261, Unknown=0, NotChecked=0, Total=3540 [2023-12-21 13:48:38,037 INFO L87 Difference]: Start difference. First operand 6077 states and 7091 transitions. Second operand has 60 states, 60 states have (on average 5.0) internal successors, (300), 59 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:48:50,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:48:50,319 INFO L93 Difference]: Finished difference Result 16325 states and 19029 transitions. [2023-12-21 13:48:50,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2023-12-21 13:48:50,320 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 60 states have (on average 5.0) internal successors, (300), 59 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2023-12-21 13:48:50,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:48:50,330 INFO L225 Difference]: With dead ends: 16325 [2023-12-21 13:48:50,331 INFO L226 Difference]: Without dead ends: 14656 [2023-12-21 13:48:50,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6260 ImplicationChecksByTransitivity, 10.8s TimeCoverageRelationStatistics Valid=2482, Invalid=22010, Unknown=0, NotChecked=0, Total=24492 [2023-12-21 13:48:50,337 INFO L413 NwaCegarLoop]: 429 mSDtfsCounter, 3318 mSDsluCounter, 13849 mSDsCounter, 0 mSdLazyCounter, 5504 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3318 SdHoareTripleChecker+Valid, 14278 SdHoareTripleChecker+Invalid, 5541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 5504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:48:50,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3318 Valid, 14278 Invalid, 5541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 5504 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-12-21 13:48:50,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14656 states. [2023-12-21 13:48:50,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14656 to 5836. [2023-12-21 13:48:50,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5836 states, 5835 states have (on average 1.1682947729220223) internal successors, (6817), 5835 states have internal predecessors, (6817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:48:50,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5836 states to 5836 states and 6817 transitions. [2023-12-21 13:48:50,404 INFO L78 Accepts]: Start accepts. Automaton has 5836 states and 6817 transitions. Word has length 106 [2023-12-21 13:48:50,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:48:50,404 INFO L495 AbstractCegarLoop]: Abstraction has 5836 states and 6817 transitions. [2023-12-21 13:48:50,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 60 states have (on average 5.0) internal successors, (300), 59 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:48:50,405 INFO L276 IsEmpty]: Start isEmpty. Operand 5836 states and 6817 transitions. [2023-12-21 13:48:50,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-21 13:48:50,405 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:48:50,405 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 13:48:50,411 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-12-21 13:48:50,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:48:50,607 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:48:50,607 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:48:50,607 INFO L85 PathProgramCache]: Analyzing trace with hash 2023506591, now seen corresponding path program 1 times [2023-12-21 13:48:50,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:48:50,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035756459] [2023-12-21 13:48:50,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:48:50,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:48:50,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:48:51,234 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:48:51,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:48:51,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035756459] [2023-12-21 13:48:51,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035756459] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:48:51,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [59843909] [2023-12-21 13:48:51,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:48:51,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:48:51,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:48:51,236 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 13:48:51,237 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-12-21 13:48:51,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:48:51,419 INFO L262 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 49 conjunts are in the unsatisfiable core [2023-12-21 13:48:51,421 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:48:53,253 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:48:53,253 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 13:48:55,829 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:48:55,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [59843909] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 13:48:55,829 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 13:48:55,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 22, 23] total 62 [2023-12-21 13:48:55,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951802917] [2023-12-21 13:48:55,830 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 13:48:55,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2023-12-21 13:48:55,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:48:55,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2023-12-21 13:48:55,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=319, Invalid=3587, Unknown=0, NotChecked=0, Total=3906 [2023-12-21 13:48:55,831 INFO L87 Difference]: Start difference. First operand 5836 states and 6817 transitions. Second operand has 63 states, 63 states have (on average 4.507936507936508) internal successors, (284), 62 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:49:57,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:49:57,945 INFO L93 Difference]: Finished difference Result 24615 states and 29418 transitions. [2023-12-21 13:49:57,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 371 states. [2023-12-21 13:49:57,945 INFO L78 Accepts]: Start accepts. Automaton has has 63 states, 63 states have (on average 4.507936507936508) internal successors, (284), 62 states have internal predecessors, (284), 0 states have call successors, (0), 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 106 [2023-12-21 13:49:57,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:49:57,963 INFO L225 Difference]: With dead ends: 24615 [2023-12-21 13:49:57,963 INFO L226 Difference]: Without dead ends: 21962 [2023-12-21 13:49:57,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 595 GetRequests, 167 SyntacticMatches, 1 SemanticMatches, 427 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71861 ImplicationChecksByTransitivity, 55.8s TimeCoverageRelationStatistics Valid=18878, Invalid=164734, Unknown=0, NotChecked=0, Total=183612 [2023-12-21 13:49:57,980 INFO L413 NwaCegarLoop]: 414 mSDtfsCounter, 9177 mSDsluCounter, 11755 mSDsCounter, 0 mSdLazyCounter, 10767 mSolverCounterSat, 320 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9177 SdHoareTripleChecker+Valid, 12169 SdHoareTripleChecker+Invalid, 11087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 320 IncrementalHoareTripleChecker+Valid, 10767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2023-12-21 13:49:57,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9177 Valid, 12169 Invalid, 11087 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [320 Valid, 10767 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2023-12-21 13:49:57,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21962 states. [2023-12-21 13:49:58,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21962 to 5205. [2023-12-21 13:49:58,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5205 states, 5204 states have (on average 1.1731360491929286) internal successors, (6105), 5204 states have internal predecessors, (6105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:49:58,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5205 states to 5205 states and 6105 transitions. [2023-12-21 13:49:58,090 INFO L78 Accepts]: Start accepts. Automaton has 5205 states and 6105 transitions. Word has length 106 [2023-12-21 13:49:58,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:49:58,090 INFO L495 AbstractCegarLoop]: Abstraction has 5205 states and 6105 transitions. [2023-12-21 13:49:58,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 63 states have (on average 4.507936507936508) internal successors, (284), 62 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:49:58,090 INFO L276 IsEmpty]: Start isEmpty. Operand 5205 states and 6105 transitions. [2023-12-21 13:49:58,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-21 13:49:58,091 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:49:58,091 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 13:49:58,096 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-12-21 13:49:58,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:49:58,292 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:49:58,292 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:49:58,292 INFO L85 PathProgramCache]: Analyzing trace with hash 225628613, now seen corresponding path program 1 times [2023-12-21 13:49:58,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:49:58,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532952356] [2023-12-21 13:49:58,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:49:58,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:49:58,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:49:59,089 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:49:59,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:49:59,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532952356] [2023-12-21 13:49:59,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532952356] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:49:59,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1869040835] [2023-12-21 13:49:59,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:49:59,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:49:59,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:49:59,096 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 13:49:59,098 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-12-21 13:49:59,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:49:59,232 INFO L262 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 58 conjunts are in the unsatisfiable core [2023-12-21 13:49:59,234 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:50:02,243 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:50:02,244 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 13:50:05,329 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:50:05,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1869040835] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 13:50:05,329 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 13:50:05,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 29, 27] total 73 [2023-12-21 13:50:05,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621126595] [2023-12-21 13:50:05,330 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 13:50:05,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 74 states [2023-12-21 13:50:05,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:50:05,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2023-12-21 13:50:05,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=552, Invalid=4850, Unknown=0, NotChecked=0, Total=5402 [2023-12-21 13:50:05,331 INFO L87 Difference]: Start difference. First operand 5205 states and 6105 transitions. Second operand has 74 states, 74 states have (on average 3.9054054054054053) internal successors, (289), 73 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) [2023-12-21 13:50:31,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:50:31,424 INFO L93 Difference]: Finished difference Result 13361 states and 15529 transitions. [2023-12-21 13:50:31,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 184 states. [2023-12-21 13:50:31,424 INFO L78 Accepts]: Start accepts. Automaton has has 74 states, 74 states have (on average 3.9054054054054053) internal successors, (289), 73 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) Word has length 106 [2023-12-21 13:50:31,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:50:31,431 INFO L225 Difference]: With dead ends: 13361 [2023-12-21 13:50:31,431 INFO L226 Difference]: Without dead ends: 9905 [2023-12-21 13:50:31,438 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 412 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 252 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21163 ImplicationChecksByTransitivity, 24.1s TimeCoverageRelationStatistics Valid=6939, Invalid=57323, Unknown=0, NotChecked=0, Total=64262 [2023-12-21 13:50:31,439 INFO L413 NwaCegarLoop]: 535 mSDtfsCounter, 3542 mSDsluCounter, 16466 mSDsCounter, 0 mSdLazyCounter, 6768 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3542 SdHoareTripleChecker+Valid, 17001 SdHoareTripleChecker+Invalid, 6835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 6768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-12-21 13:50:31,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3542 Valid, 17001 Invalid, 6835 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [67 Valid, 6768 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2023-12-21 13:50:31,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9905 states. [2023-12-21 13:50:31,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9905 to 4108. [2023-12-21 13:50:31,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4108 states, 4107 states have (on average 1.1740930119308497) internal successors, (4822), 4107 states have internal predecessors, (4822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:50:31,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4108 states to 4108 states and 4822 transitions. [2023-12-21 13:50:31,478 INFO L78 Accepts]: Start accepts. Automaton has 4108 states and 4822 transitions. Word has length 106 [2023-12-21 13:50:31,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:50:31,478 INFO L495 AbstractCegarLoop]: Abstraction has 4108 states and 4822 transitions. [2023-12-21 13:50:31,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 74 states, 74 states have (on average 3.9054054054054053) internal successors, (289), 73 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) [2023-12-21 13:50:31,479 INFO L276 IsEmpty]: Start isEmpty. Operand 4108 states and 4822 transitions. [2023-12-21 13:50:31,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-12-21 13:50:31,479 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:50:31,480 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-21 13:50:31,484 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-12-21 13:50:31,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2023-12-21 13:50:31,680 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:50:31,681 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:50:31,681 INFO L85 PathProgramCache]: Analyzing trace with hash 827565537, now seen corresponding path program 1 times [2023-12-21 13:50:31,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:50:31,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409665671] [2023-12-21 13:50:31,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:50:31,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:50:31,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:50:32,148 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 30 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:50:32,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:50:32,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409665671] [2023-12-21 13:50:32,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409665671] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:50:32,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [882555682] [2023-12-21 13:50:32,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:50:32,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:50:32,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:50:32,149 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 13:50:32,153 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-12-21 13:50:32,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:50:32,304 INFO L262 TraceCheckSpWp]: Trace formula consists of 563 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-21 13:50:32,306 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:50:32,917 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 24 proven. 74 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:50:32,917 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 13:50:34,584 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 22 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:50:34,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [882555682] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 13:50:34,584 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 13:50:34,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 11] total 33 [2023-12-21 13:50:34,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131974439] [2023-12-21 13:50:34,585 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 13:50:34,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-12-21 13:50:34,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:50:34,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-12-21 13:50:34,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=1010, Unknown=0, NotChecked=0, Total=1122 [2023-12-21 13:50:34,586 INFO L87 Difference]: Start difference. First operand 4108 states and 4822 transitions. Second operand has 34 states, 34 states have (on average 12.558823529411764) internal successors, (427), 33 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:50:42,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:50:42,021 INFO L93 Difference]: Finished difference Result 13027 states and 15458 transitions. [2023-12-21 13:50:42,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2023-12-21 13:50:42,021 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 12.558823529411764) internal successors, (427), 33 states have internal predecessors, (427), 0 states have call successors, (0), 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 149 [2023-12-21 13:50:42,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:50:42,029 INFO L225 Difference]: With dead ends: 13027 [2023-12-21 13:50:42,029 INFO L226 Difference]: Without dead ends: 11004 [2023-12-21 13:50:42,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 425 GetRequests, 277 SyntacticMatches, 0 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6244 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=4083, Invalid=18267, Unknown=0, NotChecked=0, Total=22350 [2023-12-21 13:50:42,035 INFO L413 NwaCegarLoop]: 182 mSDtfsCounter, 3013 mSDsluCounter, 3070 mSDsCounter, 0 mSdLazyCounter, 2915 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3013 SdHoareTripleChecker+Valid, 3252 SdHoareTripleChecker+Invalid, 2954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 2915 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-21 13:50:42,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3013 Valid, 3252 Invalid, 2954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 2915 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-21 13:50:42,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11004 states. [2023-12-21 13:50:42,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11004 to 7160. [2023-12-21 13:50:42,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7160 states, 7159 states have (on average 1.1751641290683057) internal successors, (8413), 7159 states have internal predecessors, (8413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:50:42,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7160 states to 7160 states and 8413 transitions. [2023-12-21 13:50:42,094 INFO L78 Accepts]: Start accepts. Automaton has 7160 states and 8413 transitions. Word has length 149 [2023-12-21 13:50:42,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:50:42,094 INFO L495 AbstractCegarLoop]: Abstraction has 7160 states and 8413 transitions. [2023-12-21 13:50:42,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 12.558823529411764) internal successors, (427), 33 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:50:42,094 INFO L276 IsEmpty]: Start isEmpty. Operand 7160 states and 8413 transitions. [2023-12-21 13:50:42,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-12-21 13:50:42,096 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:50:42,096 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-21 13:50:42,102 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-12-21 13:50:42,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:50:42,302 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:50:42,302 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:50:42,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1961348681, now seen corresponding path program 1 times [2023-12-21 13:50:42,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:50:42,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512652993] [2023-12-21 13:50:42,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:50:42,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:50:42,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:50:43,003 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 34 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:50:43,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:50:43,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512652993] [2023-12-21 13:50:43,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512652993] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:50:43,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1105266330] [2023-12-21 13:50:43,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:50:43,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:50:43,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:50:43,009 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 13:50:43,033 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-12-21 13:50:43,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:50:43,174 INFO L262 TraceCheckSpWp]: Trace formula consists of 568 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-21 13:50:43,177 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:50:43,940 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 38 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:50:43,940 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 13:50:45,286 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 34 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:50:45,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1105266330] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 13:50:45,286 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 13:50:45,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 11, 11] total 35 [2023-12-21 13:50:45,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676681196] [2023-12-21 13:50:45,287 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 13:50:45,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-21 13:50:45,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:50:45,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-21 13:50:45,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=1128, Unknown=0, NotChecked=0, Total=1260 [2023-12-21 13:50:45,288 INFO L87 Difference]: Start difference. First operand 7160 states and 8413 transitions. Second operand has 36 states, 36 states have (on average 11.055555555555555) internal successors, (398), 35 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:50:51,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:50:51,083 INFO L93 Difference]: Finished difference Result 19303 states and 22793 transitions. [2023-12-21 13:50:51,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2023-12-21 13:50:51,084 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 11.055555555555555) internal successors, (398), 35 states have internal predecessors, (398), 0 states have call successors, (0), 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 150 [2023-12-21 13:50:51,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:50:51,094 INFO L225 Difference]: With dead ends: 19303 [2023-12-21 13:50:51,094 INFO L226 Difference]: Without dead ends: 13255 [2023-12-21 13:50:51,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 382 GetRequests, 282 SyntacticMatches, 1 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2302 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=2279, Invalid=7821, Unknown=0, NotChecked=0, Total=10100 [2023-12-21 13:50:51,099 INFO L413 NwaCegarLoop]: 282 mSDtfsCounter, 2627 mSDsluCounter, 2551 mSDsCounter, 0 mSdLazyCounter, 2920 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2627 SdHoareTripleChecker+Valid, 2833 SdHoareTripleChecker+Invalid, 2980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 2920 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-21 13:50:51,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2627 Valid, 2833 Invalid, 2980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 2920 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-21 13:50:51,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13255 states. [2023-12-21 13:50:51,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13255 to 7160. [2023-12-21 13:50:51,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7160 states, 7159 states have (on average 1.1692973879033384) internal successors, (8371), 7159 states have internal predecessors, (8371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:50:51,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7160 states to 7160 states and 8371 transitions. [2023-12-21 13:50:51,173 INFO L78 Accepts]: Start accepts. Automaton has 7160 states and 8371 transitions. Word has length 150 [2023-12-21 13:50:51,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:50:51,173 INFO L495 AbstractCegarLoop]: Abstraction has 7160 states and 8371 transitions. [2023-12-21 13:50:51,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 11.055555555555555) internal successors, (398), 35 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:50:51,173 INFO L276 IsEmpty]: Start isEmpty. Operand 7160 states and 8371 transitions. [2023-12-21 13:50:51,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-12-21 13:50:51,175 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:50:51,175 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-21 13:50:51,180 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-12-21 13:50:51,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:50:51,376 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:50:51,378 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:50:51,378 INFO L85 PathProgramCache]: Analyzing trace with hash 892873518, now seen corresponding path program 1 times [2023-12-21 13:50:51,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:50:51,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179641634] [2023-12-21 13:50:51,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:50:51,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:50:51,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:50:51,842 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 38 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:50:51,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:50:51,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179641634] [2023-12-21 13:50:51,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179641634] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:50:51,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [580196607] [2023-12-21 13:50:51,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:50:51,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:50:51,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:50:51,844 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 13:50:51,846 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-12-21 13:50:51,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:50:51,980 INFO L262 TraceCheckSpWp]: Trace formula consists of 570 conjuncts, 32 conjunts are in the unsatisfiable core [2023-12-21 13:50:51,985 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:50:53,036 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 34 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:50:53,036 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 13:50:54,718 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 34 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:50:54,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [580196607] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 13:50:54,718 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 13:50:54,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 18, 16] total 44 [2023-12-21 13:50:54,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617921537] [2023-12-21 13:50:54,718 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 13:50:54,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2023-12-21 13:50:54,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:50:54,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2023-12-21 13:50:54,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=244, Invalid=1648, Unknown=0, NotChecked=0, Total=1892 [2023-12-21 13:50:54,720 INFO L87 Difference]: Start difference. First operand 7160 states and 8371 transitions. Second operand has 44 states, 44 states have (on average 9.136363636363637) internal successors, (402), 44 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:50:57,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:50:57,075 INFO L93 Difference]: Finished difference Result 17468 states and 20526 transitions. [2023-12-21 13:50:57,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2023-12-21 13:50:57,076 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 9.136363636363637) internal successors, (402), 44 states have internal predecessors, (402), 0 states have call successors, (0), 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 151 [2023-12-21 13:50:57,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:50:57,090 INFO L225 Difference]: With dead ends: 17468 [2023-12-21 13:50:57,090 INFO L226 Difference]: Without dead ends: 13918 [2023-12-21 13:50:57,097 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 371 GetRequests, 274 SyntacticMatches, 1 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2609 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1559, Invalid=7947, Unknown=0, NotChecked=0, Total=9506 [2023-12-21 13:50:57,097 INFO L413 NwaCegarLoop]: 324 mSDtfsCounter, 2400 mSDsluCounter, 5291 mSDsCounter, 0 mSdLazyCounter, 1320 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2400 SdHoareTripleChecker+Valid, 5615 SdHoareTripleChecker+Invalid, 1331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-21 13:50:57,097 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2400 Valid, 5615 Invalid, 1331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1320 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-21 13:50:57,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13918 states. [2023-12-21 13:50:57,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13918 to 9681. [2023-12-21 13:50:57,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9681 states, 9680 states have (on average 1.1678719008264462) internal successors, (11305), 9680 states have internal predecessors, (11305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:50:57,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9681 states to 9681 states and 11305 transitions. [2023-12-21 13:50:57,221 INFO L78 Accepts]: Start accepts. Automaton has 9681 states and 11305 transitions. Word has length 151 [2023-12-21 13:50:57,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:50:57,221 INFO L495 AbstractCegarLoop]: Abstraction has 9681 states and 11305 transitions. [2023-12-21 13:50:57,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 9.136363636363637) internal successors, (402), 44 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:50:57,221 INFO L276 IsEmpty]: Start isEmpty. Operand 9681 states and 11305 transitions. [2023-12-21 13:50:57,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-12-21 13:50:57,223 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:50:57,223 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-21 13:50:57,231 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-12-21 13:50:57,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:50:57,429 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:50:57,430 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:50:57,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1613278123, now seen corresponding path program 1 times [2023-12-21 13:50:57,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:50:57,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674180887] [2023-12-21 13:50:57,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:50:57,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:50:57,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:50:58,125 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 64 proven. 6 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-12-21 13:50:58,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:50:58,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674180887] [2023-12-21 13:50:58,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674180887] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:50:58,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1726675585] [2023-12-21 13:50:58,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:50:58,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:50:58,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:50:58,127 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 13:50:58,128 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-12-21 13:50:58,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:50:58,265 INFO L262 TraceCheckSpWp]: Trace formula consists of 570 conjuncts, 42 conjunts are in the unsatisfiable core [2023-12-21 13:50:58,268 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:50:59,528 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 25 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:50:59,528 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 13:51:01,016 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 25 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:51:01,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1726675585] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 13:51:01,017 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 13:51:01,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 20, 19] total 57 [2023-12-21 13:51:01,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069272507] [2023-12-21 13:51:01,017 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 13:51:01,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2023-12-21 13:51:01,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:51:01,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2023-12-21 13:51:01,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=3022, Unknown=0, NotChecked=0, Total=3192 [2023-12-21 13:51:01,018 INFO L87 Difference]: Start difference. First operand 9681 states and 11305 transitions. Second operand has 57 states, 57 states have (on average 7.175438596491228) internal successors, (409), 57 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:51:08,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:51:08,196 INFO L93 Difference]: Finished difference Result 16839 states and 19708 transitions. [2023-12-21 13:51:08,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2023-12-21 13:51:08,196 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 57 states have (on average 7.175438596491228) internal successors, (409), 57 states have internal predecessors, (409), 0 states have call successors, (0), 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 151 [2023-12-21 13:51:08,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:51:08,208 INFO L225 Difference]: With dead ends: 16839 [2023-12-21 13:51:08,208 INFO L226 Difference]: Without dead ends: 15053 [2023-12-21 13:51:08,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2882 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=1382, Invalid=13138, Unknown=0, NotChecked=0, Total=14520 [2023-12-21 13:51:08,213 INFO L413 NwaCegarLoop]: 363 mSDtfsCounter, 2358 mSDsluCounter, 12426 mSDsCounter, 0 mSdLazyCounter, 4874 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2358 SdHoareTripleChecker+Valid, 12789 SdHoareTripleChecker+Invalid, 4888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 4874 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-21 13:51:08,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2358 Valid, 12789 Invalid, 4888 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 4874 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-21 13:51:08,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15053 states. [2023-12-21 13:51:08,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15053 to 8442. [2023-12-21 13:51:08,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8442 states, 8441 states have (on average 1.1704774315839355) internal successors, (9880), 8441 states have internal predecessors, (9880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:51:08,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8442 states to 8442 states and 9880 transitions. [2023-12-21 13:51:08,293 INFO L78 Accepts]: Start accepts. Automaton has 8442 states and 9880 transitions. Word has length 151 [2023-12-21 13:51:08,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:51:08,293 INFO L495 AbstractCegarLoop]: Abstraction has 8442 states and 9880 transitions. [2023-12-21 13:51:08,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 57 states have (on average 7.175438596491228) internal successors, (409), 57 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:51:08,294 INFO L276 IsEmpty]: Start isEmpty. Operand 8442 states and 9880 transitions. [2023-12-21 13:51:08,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-21 13:51:08,295 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:51:08,295 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-21 13:51:08,300 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-12-21 13:51:08,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2023-12-21 13:51:08,495 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:51:08,496 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:51:08,496 INFO L85 PathProgramCache]: Analyzing trace with hash -149659736, now seen corresponding path program 1 times [2023-12-21 13:51:08,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:51:08,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135864967] [2023-12-21 13:51:08,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:51:08,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:51:08,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:51:08,916 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 31 proven. 69 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:51:08,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:51:08,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135864967] [2023-12-21 13:51:08,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135864967] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:51:08,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [199877439] [2023-12-21 13:51:08,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:51:08,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:51:08,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:51:08,917 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 13:51:08,924 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-12-21 13:51:09,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:51:09,055 INFO L262 TraceCheckSpWp]: Trace formula consists of 566 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-21 13:51:09,057 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:51:09,589 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 33 proven. 67 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:51:09,589 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 13:51:11,108 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 31 proven. 69 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:51:11,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [199877439] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 13:51:11,108 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 13:51:11,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 25 [2023-12-21 13:51:11,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429074684] [2023-12-21 13:51:11,108 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 13:51:11,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-21 13:51:11,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:51:11,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-21 13:51:11,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=557, Unknown=0, NotChecked=0, Total=650 [2023-12-21 13:51:11,109 INFO L87 Difference]: Start difference. First operand 8442 states and 9880 transitions. Second operand has 26 states, 26 states have (on average 12.615384615384615) internal successors, (328), 25 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:51:11,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:51:11,712 INFO L93 Difference]: Finished difference Result 15024 states and 17654 transitions. [2023-12-21 13:51:11,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-21 13:51:11,713 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 12.615384615384615) internal successors, (328), 25 states have internal predecessors, (328), 0 states have call successors, (0), 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 152 [2023-12-21 13:51:11,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:51:11,720 INFO L225 Difference]: With dead ends: 15024 [2023-12-21 13:51:11,720 INFO L226 Difference]: Without dead ends: 9266 [2023-12-21 13:51:11,723 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 288 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=397, Invalid=1163, Unknown=0, NotChecked=0, Total=1560 [2023-12-21 13:51:11,724 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 1243 mSDsluCounter, 735 mSDsCounter, 0 mSdLazyCounter, 638 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1243 SdHoareTripleChecker+Valid, 848 SdHoareTripleChecker+Invalid, 669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 13:51:11,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1243 Valid, 848 Invalid, 669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 638 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 13:51:11,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9266 states. [2023-12-21 13:51:11,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9266 to 4968. [2023-12-21 13:51:11,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4968 states, 4967 states have (on average 1.1538151801892491) internal successors, (5731), 4967 states have internal predecessors, (5731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:51:11,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4968 states to 4968 states and 5731 transitions. [2023-12-21 13:51:11,766 INFO L78 Accepts]: Start accepts. Automaton has 4968 states and 5731 transitions. Word has length 152 [2023-12-21 13:51:11,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:51:11,767 INFO L495 AbstractCegarLoop]: Abstraction has 4968 states and 5731 transitions. [2023-12-21 13:51:11,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 12.615384615384615) internal successors, (328), 25 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:51:11,767 INFO L276 IsEmpty]: Start isEmpty. Operand 4968 states and 5731 transitions. [2023-12-21 13:51:11,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-21 13:51:11,768 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:51:11,768 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-21 13:51:11,772 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-12-21 13:51:11,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2023-12-21 13:51:11,969 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:51:11,970 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:51:11,970 INFO L85 PathProgramCache]: Analyzing trace with hash -570197388, now seen corresponding path program 1 times [2023-12-21 13:51:11,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:51:11,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117316764] [2023-12-21 13:51:11,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:51:11,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:51:12,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:51:13,212 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 16 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:51:13,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:51:13,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117316764] [2023-12-21 13:51:13,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117316764] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:51:13,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [74033966] [2023-12-21 13:51:13,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:51:13,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:51:13,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:51:13,214 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 13:51:13,216 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-12-21 13:51:13,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:51:13,350 INFO L262 TraceCheckSpWp]: Trace formula consists of 569 conjuncts, 41 conjunts are in the unsatisfiable core [2023-12-21 13:51:13,352 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:51:15,276 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 16 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:51:15,276 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 13:51:17,314 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 16 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:51:17,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [74033966] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 13:51:17,314 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 13:51:17,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 20] total 58 [2023-12-21 13:51:17,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428193358] [2023-12-21 13:51:17,315 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 13:51:17,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2023-12-21 13:51:17,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:51:17,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2023-12-21 13:51:17,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=221, Invalid=3085, Unknown=0, NotChecked=0, Total=3306 [2023-12-21 13:51:17,316 INFO L87 Difference]: Start difference. First operand 4968 states and 5731 transitions. Second operand has 58 states, 58 states have (on average 7.327586206896552) internal successors, (425), 58 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:51:39,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:51:39,809 INFO L93 Difference]: Finished difference Result 12725 states and 14600 transitions. [2023-12-21 13:51:39,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 155 states. [2023-12-21 13:51:39,809 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 58 states have (on average 7.327586206896552) internal successors, (425), 58 states have internal predecessors, (425), 0 states have call successors, (0), 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 152 [2023-12-21 13:51:39,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:51:39,819 INFO L225 Difference]: With dead ends: 12725 [2023-12-21 13:51:39,819 INFO L226 Difference]: Without dead ends: 11299 [2023-12-21 13:51:39,825 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 476 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 208 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12872 ImplicationChecksByTransitivity, 21.4s TimeCoverageRelationStatistics Valid=5698, Invalid=38192, Unknown=0, NotChecked=0, Total=43890 [2023-12-21 13:51:39,825 INFO L413 NwaCegarLoop]: 340 mSDtfsCounter, 5228 mSDsluCounter, 10290 mSDsCounter, 0 mSdLazyCounter, 4548 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5228 SdHoareTripleChecker+Valid, 10630 SdHoareTripleChecker+Invalid, 4601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 4548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-21 13:51:39,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5228 Valid, 10630 Invalid, 4601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 4548 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-21 13:51:39,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11299 states. [2023-12-21 13:51:39,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11299 to 4620. [2023-12-21 13:51:39,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4620 states, 4619 states have (on average 1.1502489716388828) internal successors, (5313), 4619 states have internal predecessors, (5313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:51:39,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4620 states to 4620 states and 5313 transitions. [2023-12-21 13:51:39,870 INFO L78 Accepts]: Start accepts. Automaton has 4620 states and 5313 transitions. Word has length 152 [2023-12-21 13:51:39,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:51:39,870 INFO L495 AbstractCegarLoop]: Abstraction has 4620 states and 5313 transitions. [2023-12-21 13:51:39,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 58 states have (on average 7.327586206896552) internal successors, (425), 58 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:51:39,871 INFO L276 IsEmpty]: Start isEmpty. Operand 4620 states and 5313 transitions. [2023-12-21 13:51:39,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-21 13:51:39,871 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:51:39,872 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-21 13:51:39,876 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2023-12-21 13:51:40,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:51:40,073 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:51:40,074 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:51:40,074 INFO L85 PathProgramCache]: Analyzing trace with hash 683865997, now seen corresponding path program 1 times [2023-12-21 13:51:40,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:51:40,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065001028] [2023-12-21 13:51:40,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:51:40,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:51:40,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:51:40,990 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 31 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:51:40,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:51:40,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065001028] [2023-12-21 13:51:40,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065001028] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:51:40,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [939507285] [2023-12-21 13:51:40,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:51:40,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:51:40,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:51:40,992 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 13:51:40,994 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-12-21 13:51:41,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:51:41,160 INFO L262 TraceCheckSpWp]: Trace formula consists of 568 conjuncts, 40 conjunts are in the unsatisfiable core [2023-12-21 13:51:41,163 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:51:43,322 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 31 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:51:43,323 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 13:51:46,564 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 31 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:51:46,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [939507285] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 13:51:46,564 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 13:51:46,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 25, 24] total 67 [2023-12-21 13:51:46,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307355280] [2023-12-21 13:51:46,564 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 13:51:46,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2023-12-21 13:51:46,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:51:46,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2023-12-21 13:51:46,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=324, Invalid=4098, Unknown=0, NotChecked=0, Total=4422 [2023-12-21 13:51:46,566 INFO L87 Difference]: Start difference. First operand 4620 states and 5313 transitions. Second operand has 67 states, 67 states have (on average 5.970149253731344) internal successors, (400), 67 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:52:34,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:52:34,025 INFO L93 Difference]: Finished difference Result 11478 states and 13359 transitions. [2023-12-21 13:52:34,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 246 states. [2023-12-21 13:52:34,026 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 67 states have (on average 5.970149253731344) internal successors, (400), 67 states have internal predecessors, (400), 0 states have call successors, (0), 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 153 [2023-12-21 13:52:34,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:52:34,033 INFO L225 Difference]: With dead ends: 11478 [2023-12-21 13:52:34,033 INFO L226 Difference]: Without dead ends: 10044 [2023-12-21 13:52:34,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 571 GetRequests, 261 SyntacticMatches, 1 SemanticMatches, 309 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32812 ImplicationChecksByTransitivity, 44.5s TimeCoverageRelationStatistics Valid=12881, Invalid=83529, Unknown=0, NotChecked=0, Total=96410 [2023-12-21 13:52:34,039 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 7859 mSDsluCounter, 7709 mSDsCounter, 0 mSdLazyCounter, 6733 mSolverCounterSat, 260 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7859 SdHoareTripleChecker+Valid, 7883 SdHoareTripleChecker+Invalid, 6993 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 260 IncrementalHoareTripleChecker+Valid, 6733 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2023-12-21 13:52:34,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7859 Valid, 7883 Invalid, 6993 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [260 Valid, 6733 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2023-12-21 13:52:34,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10044 states. [2023-12-21 13:52:34,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10044 to 5520. [2023-12-21 13:52:34,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5520 states, 5519 states have (on average 1.1482152563870267) internal successors, (6337), 5519 states have internal predecessors, (6337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:52:34,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5520 states to 5520 states and 6337 transitions. [2023-12-21 13:52:34,084 INFO L78 Accepts]: Start accepts. Automaton has 5520 states and 6337 transitions. Word has length 153 [2023-12-21 13:52:34,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:52:34,085 INFO L495 AbstractCegarLoop]: Abstraction has 5520 states and 6337 transitions. [2023-12-21 13:52:34,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 5.970149253731344) internal successors, (400), 67 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:52:34,085 INFO L276 IsEmpty]: Start isEmpty. Operand 5520 states and 6337 transitions. [2023-12-21 13:52:34,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-21 13:52:34,086 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:52:34,086 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-21 13:52:34,091 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2023-12-21 13:52:34,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:52:34,286 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:52:34,287 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:52:34,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1266312493, now seen corresponding path program 1 times [2023-12-21 13:52:34,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:52:34,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000766744] [2023-12-21 13:52:34,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:52:34,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:52:34,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:52:34,419 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 12 proven. 74 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-21 13:52:34,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:52:34,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000766744] [2023-12-21 13:52:34,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000766744] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:52:34,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1353394387] [2023-12-21 13:52:34,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:52:34,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:52:34,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:52:34,424 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 13:52:34,427 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-12-21 13:52:34,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:52:34,598 INFO L262 TraceCheckSpWp]: Trace formula consists of 569 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-21 13:52:34,600 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:52:34,756 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 12 proven. 74 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-21 13:52:34,756 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 13:52:35,134 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 72 proven. 21 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-21 13:52:35,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1353394387] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 13:52:35,134 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 13:52:35,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 7] total 12 [2023-12-21 13:52:35,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123726682] [2023-12-21 13:52:35,135 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 13:52:35,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-21 13:52:35,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:52:35,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-21 13:52:35,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-12-21 13:52:35,136 INFO L87 Difference]: Start difference. First operand 5520 states and 6337 transitions. Second operand has 12 states, 12 states have (on average 26.666666666666668) internal successors, (320), 12 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) [2023-12-21 13:52:35,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:52:35,240 INFO L93 Difference]: Finished difference Result 13651 states and 16248 transitions. [2023-12-21 13:52:35,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 13:52:35,240 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 26.666666666666668) internal successors, (320), 12 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) Word has length 153 [2023-12-21 13:52:35,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:52:35,246 INFO L225 Difference]: With dead ends: 13651 [2023-12-21 13:52:35,247 INFO L226 Difference]: Without dead ends: 8552 [2023-12-21 13:52:35,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 298 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2023-12-21 13:52:35,251 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 385 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 825 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:52:35,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [385 Valid, 825 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 13:52:35,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8552 states. [2023-12-21 13:52:35,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8552 to 8546. [2023-12-21 13:52:35,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8546 states, 8545 states have (on average 1.133996489174956) internal successors, (9690), 8545 states have internal predecessors, (9690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:52:35,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8546 states to 8546 states and 9690 transitions. [2023-12-21 13:52:35,305 INFO L78 Accepts]: Start accepts. Automaton has 8546 states and 9690 transitions. Word has length 153 [2023-12-21 13:52:35,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:52:35,305 INFO L495 AbstractCegarLoop]: Abstraction has 8546 states and 9690 transitions. [2023-12-21 13:52:35,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 26.666666666666668) internal successors, (320), 12 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) [2023-12-21 13:52:35,306 INFO L276 IsEmpty]: Start isEmpty. Operand 8546 states and 9690 transitions. [2023-12-21 13:52:35,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-21 13:52:35,307 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:52:35,307 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-21 13:52:35,312 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2023-12-21 13:52:35,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:52:35,508 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:52:35,508 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:52:35,508 INFO L85 PathProgramCache]: Analyzing trace with hash -1535018851, now seen corresponding path program 1 times [2023-12-21 13:52:35,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:52:35,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121575461] [2023-12-21 13:52:35,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:52:35,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:52:35,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:52:36,002 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 22 proven. 79 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:52:36,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:52:36,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121575461] [2023-12-21 13:52:36,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121575461] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:52:36,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [931151271] [2023-12-21 13:52:36,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:52:36,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:52:36,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:52:36,004 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 13:52:36,006 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-12-21 13:52:36,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:52:36,149 INFO L262 TraceCheckSpWp]: Trace formula consists of 568 conjuncts, 49 conjunts are in the unsatisfiable core [2023-12-21 13:52:36,151 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:52:37,753 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 22 proven. 79 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:52:37,753 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 13:52:39,083 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 22 proven. 79 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:52:39,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [931151271] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 13:52:39,083 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 13:52:39,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 25, 16] total 49 [2023-12-21 13:52:39,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922556235] [2023-12-21 13:52:39,084 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 13:52:39,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2023-12-21 13:52:39,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:52:39,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2023-12-21 13:52:39,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=216, Invalid=2136, Unknown=0, NotChecked=0, Total=2352 [2023-12-21 13:52:39,085 INFO L87 Difference]: Start difference. First operand 8546 states and 9690 transitions. Second operand has 49 states, 49 states have (on average 8.081632653061224) internal successors, (396), 49 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:52:41,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:52:41,771 INFO L93 Difference]: Finished difference Result 12679 states and 14315 transitions. [2023-12-21 13:52:41,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2023-12-21 13:52:41,771 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 8.081632653061224) internal successors, (396), 49 states have internal predecessors, (396), 0 states have call successors, (0), 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 153 [2023-12-21 13:52:41,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:52:41,779 INFO L225 Difference]: With dead ends: 12679 [2023-12-21 13:52:41,779 INFO L226 Difference]: Without dead ends: 11805 [2023-12-21 13:52:41,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 271 SyntacticMatches, 4 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1954 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1523, Invalid=6849, Unknown=0, NotChecked=0, Total=8372 [2023-12-21 13:52:41,782 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 1571 mSDsluCounter, 3331 mSDsCounter, 0 mSdLazyCounter, 1746 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1571 SdHoareTripleChecker+Valid, 3507 SdHoareTripleChecker+Invalid, 1754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1746 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-21 13:52:41,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1571 Valid, 3507 Invalid, 1754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1746 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-21 13:52:41,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11805 states. [2023-12-21 13:52:41,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11805 to 8546. [2023-12-21 13:52:41,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8546 states, 8545 states have (on average 1.1321240491515505) internal successors, (9674), 8545 states have internal predecessors, (9674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:52:41,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8546 states to 8546 states and 9674 transitions. [2023-12-21 13:52:41,844 INFO L78 Accepts]: Start accepts. Automaton has 8546 states and 9674 transitions. Word has length 153 [2023-12-21 13:52:41,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:52:41,844 INFO L495 AbstractCegarLoop]: Abstraction has 8546 states and 9674 transitions. [2023-12-21 13:52:41,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 8.081632653061224) internal successors, (396), 49 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:52:41,844 INFO L276 IsEmpty]: Start isEmpty. Operand 8546 states and 9674 transitions. [2023-12-21 13:52:41,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-21 13:52:41,846 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:52:41,846 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-21 13:52:41,851 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2023-12-21 13:52:42,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable63 [2023-12-21 13:52:42,046 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:52:42,047 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:52:42,047 INFO L85 PathProgramCache]: Analyzing trace with hash -910954333, now seen corresponding path program 1 times [2023-12-21 13:52:42,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:52:42,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326695715] [2023-12-21 13:52:42,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:52:42,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:52:42,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:52:43,007 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 35 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:52:43,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:52:43,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326695715] [2023-12-21 13:52:43,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326695715] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:52:43,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [842298001] [2023-12-21 13:52:43,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:52:43,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:52:43,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:52:43,013 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 13:52:43,016 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-12-21 13:52:43,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:52:43,182 INFO L262 TraceCheckSpWp]: Trace formula consists of 568 conjuncts, 42 conjunts are in the unsatisfiable core [2023-12-21 13:52:43,185 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:52:44,617 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 35 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:52:44,617 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 13:52:46,344 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 35 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:52:46,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [842298001] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 13:52:46,344 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 13:52:46,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 21, 20] total 60 [2023-12-21 13:52:46,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879120046] [2023-12-21 13:52:46,344 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 13:52:46,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2023-12-21 13:52:46,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:52:46,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2023-12-21 13:52:46,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=199, Invalid=3341, Unknown=0, NotChecked=0, Total=3540 [2023-12-21 13:52:46,346 INFO L87 Difference]: Start difference. First operand 8546 states and 9674 transitions. Second operand has 60 states, 60 states have (on average 6.8) internal successors, (408), 60 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:53:03,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:53:03,864 INFO L93 Difference]: Finished difference Result 20949 states and 24038 transitions. [2023-12-21 13:53:03,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 133 states. [2023-12-21 13:53:03,864 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 60 states have (on average 6.8) internal successors, (408), 60 states have internal predecessors, (408), 0 states have call successors, (0), 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 153 [2023-12-21 13:53:03,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:53:03,876 INFO L225 Difference]: With dead ends: 20949 [2023-12-21 13:53:03,876 INFO L226 Difference]: Without dead ends: 16111 [2023-12-21 13:53:03,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 459 GetRequests, 270 SyntacticMatches, 1 SemanticMatches, 188 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10248 ImplicationChecksByTransitivity, 15.7s TimeCoverageRelationStatistics Valid=3740, Invalid=32170, Unknown=0, NotChecked=0, Total=35910 [2023-12-21 13:53:03,883 INFO L413 NwaCegarLoop]: 332 mSDtfsCounter, 4017 mSDsluCounter, 12898 mSDsCounter, 0 mSdLazyCounter, 6225 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4017 SdHoareTripleChecker+Valid, 13230 SdHoareTripleChecker+Invalid, 6272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 6225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-12-21 13:53:03,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4017 Valid, 13230 Invalid, 6272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 6225 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-12-21 13:53:03,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16111 states. [2023-12-21 13:53:03,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16111 to 8498. [2023-12-21 13:53:03,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8498 states, 8497 states have (on average 1.1375779686948335) internal successors, (9666), 8497 states have internal predecessors, (9666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:53:03,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8498 states to 8498 states and 9666 transitions. [2023-12-21 13:53:03,960 INFO L78 Accepts]: Start accepts. Automaton has 8498 states and 9666 transitions. Word has length 153 [2023-12-21 13:53:03,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:53:03,960 INFO L495 AbstractCegarLoop]: Abstraction has 8498 states and 9666 transitions. [2023-12-21 13:53:03,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 60 states have (on average 6.8) internal successors, (408), 60 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:53:03,961 INFO L276 IsEmpty]: Start isEmpty. Operand 8498 states and 9666 transitions. [2023-12-21 13:53:03,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-21 13:53:03,961 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:53:03,962 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-21 13:53:03,967 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2023-12-21 13:53:04,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable64 [2023-12-21 13:53:04,162 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:53:04,162 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:53:04,162 INFO L85 PathProgramCache]: Analyzing trace with hash 1241604376, now seen corresponding path program 1 times [2023-12-21 13:53:04,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:53:04,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234559186] [2023-12-21 13:53:04,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:53:04,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:53:04,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:53:04,788 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 40 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:53:04,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:53:04,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234559186] [2023-12-21 13:53:04,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234559186] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:53:04,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1551004110] [2023-12-21 13:53:04,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:53:04,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:53:04,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:53:04,790 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 13:53:04,792 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-12-21 13:53:04,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:53:04,982 INFO L262 TraceCheckSpWp]: Trace formula consists of 568 conjuncts, 50 conjunts are in the unsatisfiable core [2023-12-21 13:53:04,984 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:53:07,402 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 40 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:53:07,402 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 13:53:09,684 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 40 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:53:09,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1551004110] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 13:53:09,684 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 13:53:09,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 24, 24] total 59 [2023-12-21 13:53:09,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926900841] [2023-12-21 13:53:09,685 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 13:53:09,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2023-12-21 13:53:09,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:53:09,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2023-12-21 13:53:09,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=293, Invalid=3129, Unknown=0, NotChecked=0, Total=3422 [2023-12-21 13:53:09,686 INFO L87 Difference]: Start difference. First operand 8498 states and 9666 transitions. Second operand has 59 states, 59 states have (on average 6.762711864406779) internal successors, (399), 59 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:53:23,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:53:23,085 INFO L93 Difference]: Finished difference Result 19227 states and 21948 transitions. [2023-12-21 13:53:23,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2023-12-21 13:53:23,086 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 59 states have (on average 6.762711864406779) internal successors, (399), 59 states have internal predecessors, (399), 0 states have call successors, (0), 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 153 [2023-12-21 13:53:23,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:53:23,097 INFO L225 Difference]: With dead ends: 19227 [2023-12-21 13:53:23,097 INFO L226 Difference]: Without dead ends: 15997 [2023-12-21 13:53:23,104 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 265 SyntacticMatches, 1 SemanticMatches, 174 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9201 ImplicationChecksByTransitivity, 11.4s TimeCoverageRelationStatistics Valid=4631, Invalid=26169, Unknown=0, NotChecked=0, Total=30800 [2023-12-21 13:53:23,104 INFO L413 NwaCegarLoop]: 423 mSDtfsCounter, 2342 mSDsluCounter, 11340 mSDsCounter, 0 mSdLazyCounter, 5171 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2342 SdHoareTripleChecker+Valid, 11763 SdHoareTripleChecker+Invalid, 5189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 5171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-12-21 13:53:23,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2342 Valid, 11763 Invalid, 5189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 5171 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-12-21 13:53:23,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15997 states. [2023-12-21 13:53:23,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15997 to 10278. [2023-12-21 13:53:23,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10278 states, 10277 states have (on average 1.1317505108494696) internal successors, (11631), 10277 states have internal predecessors, (11631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:53:23,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10278 states to 10278 states and 11631 transitions. [2023-12-21 13:53:23,182 INFO L78 Accepts]: Start accepts. Automaton has 10278 states and 11631 transitions. Word has length 153 [2023-12-21 13:53:23,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:53:23,182 INFO L495 AbstractCegarLoop]: Abstraction has 10278 states and 11631 transitions. [2023-12-21 13:53:23,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 59 states have (on average 6.762711864406779) internal successors, (399), 59 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:53:23,182 INFO L276 IsEmpty]: Start isEmpty. Operand 10278 states and 11631 transitions. [2023-12-21 13:53:23,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-21 13:53:23,183 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:53:23,184 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-21 13:53:23,189 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2023-12-21 13:53:23,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65,28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:53:23,384 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:53:23,384 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:53:23,384 INFO L85 PathProgramCache]: Analyzing trace with hash -439686143, now seen corresponding path program 1 times [2023-12-21 13:53:23,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:53:23,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405091919] [2023-12-21 13:53:23,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:53:23,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:53:23,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:53:23,467 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2023-12-21 13:53:23,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:53:23,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405091919] [2023-12-21 13:53:23,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405091919] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:53:23,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:53:23,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 13:53:23,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316750447] [2023-12-21 13:53:23,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:53:23,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 13:53:23,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:53:23,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 13:53:23,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-21 13:53:23,468 INFO L87 Difference]: Start difference. First operand 10278 states and 11631 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:53:23,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:53:23,513 INFO L93 Difference]: Finished difference Result 13616 states and 15493 transitions. [2023-12-21 13:53:23,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 13:53:23,514 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 0 states have call successors, (0), 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 154 [2023-12-21 13:53:23,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:53:23,520 INFO L225 Difference]: With dead ends: 13616 [2023-12-21 13:53:23,520 INFO L226 Difference]: Without dead ends: 10318 [2023-12-21 13:53:23,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-21 13:53:23,523 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 204 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:53:23,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 355 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:53:23,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10318 states. [2023-12-21 13:53:23,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10318 to 10086. [2023-12-21 13:53:23,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10086 states, 10085 states have (on average 1.1215666831928608) internal successors, (11311), 10085 states have internal predecessors, (11311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:53:23,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10086 states to 10086 states and 11311 transitions. [2023-12-21 13:53:23,587 INFO L78 Accepts]: Start accepts. Automaton has 10086 states and 11311 transitions. Word has length 154 [2023-12-21 13:53:23,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:53:23,587 INFO L495 AbstractCegarLoop]: Abstraction has 10086 states and 11311 transitions. [2023-12-21 13:53:23,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:53:23,587 INFO L276 IsEmpty]: Start isEmpty. Operand 10086 states and 11311 transitions. [2023-12-21 13:53:23,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-21 13:53:23,588 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:53:23,588 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-21 13:53:23,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2023-12-21 13:53:23,589 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:53:23,589 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:53:23,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1460754497, now seen corresponding path program 1 times [2023-12-21 13:53:23,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:53:23,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710050788] [2023-12-21 13:53:23,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:53:23,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:53:23,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:53:24,210 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 31 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:53:24,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:53:24,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710050788] [2023-12-21 13:53:24,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710050788] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:53:24,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1640347574] [2023-12-21 13:53:24,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:53:24,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:53:24,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:53:24,213 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 13:53:24,214 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-12-21 13:53:24,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:53:24,385 INFO L262 TraceCheckSpWp]: Trace formula consists of 567 conjuncts, 39 conjunts are in the unsatisfiable core [2023-12-21 13:53:24,387 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:53:25,696 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 31 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:53:25,697 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 13:53:27,367 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 31 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:53:27,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1640347574] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 13:53:27,367 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 13:53:27,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 51 [2023-12-21 13:53:27,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966839348] [2023-12-21 13:53:27,368 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 13:53:27,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2023-12-21 13:53:27,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:53:27,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2023-12-21 13:53:27,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=252, Invalid=2400, Unknown=0, NotChecked=0, Total=2652 [2023-12-21 13:53:27,369 INFO L87 Difference]: Start difference. First operand 10086 states and 11311 transitions. Second operand has 52 states, 52 states have (on average 7.730769230769231) internal successors, (402), 51 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:53:30,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:53:30,423 INFO L93 Difference]: Finished difference Result 18998 states and 21518 transitions. [2023-12-21 13:53:30,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2023-12-21 13:53:30,423 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 7.730769230769231) internal successors, (402), 51 states have internal predecessors, (402), 0 states have call successors, (0), 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 154 [2023-12-21 13:53:30,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:53:30,434 INFO L225 Difference]: With dead ends: 18998 [2023-12-21 13:53:30,434 INFO L226 Difference]: Without dead ends: 15296 [2023-12-21 13:53:30,439 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 369 GetRequests, 272 SyntacticMatches, 3 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2272 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=1268, Invalid=7852, Unknown=0, NotChecked=0, Total=9120 [2023-12-21 13:53:30,440 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 1943 mSDsluCounter, 5245 mSDsCounter, 0 mSdLazyCounter, 2197 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1943 SdHoareTripleChecker+Valid, 5459 SdHoareTripleChecker+Invalid, 2211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 2197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-21 13:53:30,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1943 Valid, 5459 Invalid, 2211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 2197 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-21 13:53:30,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15296 states. [2023-12-21 13:53:30,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15296 to 8784. [2023-12-21 13:53:30,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8784 states, 8783 states have (on average 1.1197768416258682) internal successors, (9835), 8783 states have internal predecessors, (9835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:53:30,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8784 states to 8784 states and 9835 transitions. [2023-12-21 13:53:30,520 INFO L78 Accepts]: Start accepts. Automaton has 8784 states and 9835 transitions. Word has length 154 [2023-12-21 13:53:30,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:53:30,520 INFO L495 AbstractCegarLoop]: Abstraction has 8784 states and 9835 transitions. [2023-12-21 13:53:30,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 7.730769230769231) internal successors, (402), 51 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:53:30,520 INFO L276 IsEmpty]: Start isEmpty. Operand 8784 states and 9835 transitions. [2023-12-21 13:53:30,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-21 13:53:30,521 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:53:30,522 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-21 13:53:30,530 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2023-12-21 13:53:30,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:53:30,727 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:53:30,728 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:53:30,728 INFO L85 PathProgramCache]: Analyzing trace with hash -845417452, now seen corresponding path program 1 times [2023-12-21 13:53:30,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:53:30,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976695111] [2023-12-21 13:53:30,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:53:30,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:53:30,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:53:30,806 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2023-12-21 13:53:30,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:53:30,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976695111] [2023-12-21 13:53:30,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976695111] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:53:30,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:53:30,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 13:53:30,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115654460] [2023-12-21 13:53:30,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:53:30,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 13:53:30,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:53:30,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 13:53:30,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-21 13:53:30,807 INFO L87 Difference]: Start difference. First operand 8784 states and 9835 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:53:30,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:53:30,852 INFO L93 Difference]: Finished difference Result 9874 states and 11111 transitions. [2023-12-21 13:53:30,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 13:53:30,852 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 0 states have call successors, (0), 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 154 [2023-12-21 13:53:30,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:53:30,860 INFO L225 Difference]: With dead ends: 9874 [2023-12-21 13:53:30,860 INFO L226 Difference]: Without dead ends: 8968 [2023-12-21 13:53:30,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-21 13:53:30,864 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 206 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:53:30,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 360 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:53:30,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8968 states. [2023-12-21 13:53:30,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8968 to 8736. [2023-12-21 13:53:30,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8736 states, 8735 states have (on average 1.1167716084716657) internal successors, (9755), 8735 states have internal predecessors, (9755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:53:30,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8736 states to 8736 states and 9755 transitions. [2023-12-21 13:53:30,921 INFO L78 Accepts]: Start accepts. Automaton has 8736 states and 9755 transitions. Word has length 154 [2023-12-21 13:53:30,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:53:30,921 INFO L495 AbstractCegarLoop]: Abstraction has 8736 states and 9755 transitions. [2023-12-21 13:53:30,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:53:30,921 INFO L276 IsEmpty]: Start isEmpty. Operand 8736 states and 9755 transitions. [2023-12-21 13:53:30,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-21 13:53:30,922 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:53:30,922 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-21 13:53:30,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2023-12-21 13:53:30,922 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:53:30,922 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:53:30,922 INFO L85 PathProgramCache]: Analyzing trace with hash -144352874, now seen corresponding path program 1 times [2023-12-21 13:53:30,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:53:30,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651099728] [2023-12-21 13:53:30,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:53:30,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:53:30,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:53:31,952 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 22 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:53:31,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:53:31,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651099728] [2023-12-21 13:53:31,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651099728] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:53:31,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1822883135] [2023-12-21 13:53:31,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:53:31,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:53:31,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:53:31,953 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 13:53:31,955 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-12-21 13:53:32,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:53:32,100 INFO L262 TraceCheckSpWp]: Trace formula consists of 567 conjuncts, 61 conjunts are in the unsatisfiable core [2023-12-21 13:53:32,102 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:53:35,322 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 22 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:53:35,322 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 13:53:38,699 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 22 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:53:38,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1822883135] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 13:53:38,700 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 13:53:38,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 30, 24] total 72 [2023-12-21 13:53:38,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469722264] [2023-12-21 13:53:38,700 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 13:53:38,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 73 states [2023-12-21 13:53:38,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:53:38,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2023-12-21 13:53:38,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=505, Invalid=4751, Unknown=0, NotChecked=0, Total=5256 [2023-12-21 13:53:38,702 INFO L87 Difference]: Start difference. First operand 8736 states and 9755 transitions. Second operand has 73 states, 73 states have (on average 6.027397260273973) internal successors, (440), 72 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) [2023-12-21 13:54:18,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:54:18,923 INFO L93 Difference]: Finished difference Result 14749 states and 16266 transitions. [2023-12-21 13:54:18,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 217 states. [2023-12-21 13:54:18,923 INFO L78 Accepts]: Start accepts. Automaton has has 73 states, 73 states have (on average 6.027397260273973) internal successors, (440), 72 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) Word has length 154 [2023-12-21 13:54:18,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:54:18,932 INFO L225 Difference]: With dead ends: 14749 [2023-12-21 13:54:18,933 INFO L226 Difference]: Without dead ends: 13625 [2023-12-21 13:54:18,940 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 541 GetRequests, 256 SyntacticMatches, 1 SemanticMatches, 284 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29412 ImplicationChecksByTransitivity, 36.4s TimeCoverageRelationStatistics Valid=8531, Invalid=72979, Unknown=0, NotChecked=0, Total=81510 [2023-12-21 13:54:18,941 INFO L413 NwaCegarLoop]: 274 mSDtfsCounter, 6574 mSDsluCounter, 8827 mSDsCounter, 0 mSdLazyCounter, 8674 mSolverCounterSat, 182 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6574 SdHoareTripleChecker+Valid, 9101 SdHoareTripleChecker+Invalid, 8856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 8674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2023-12-21 13:54:18,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6574 Valid, 9101 Invalid, 8856 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [182 Valid, 8674 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2023-12-21 13:54:18,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13625 states. [2023-12-21 13:54:18,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13625 to 8337. [2023-12-21 13:54:19,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8337 states, 8336 states have (on average 1.118162188099808) internal successors, (9321), 8336 states have internal predecessors, (9321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:54:19,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8337 states to 8337 states and 9321 transitions. [2023-12-21 13:54:19,009 INFO L78 Accepts]: Start accepts. Automaton has 8337 states and 9321 transitions. Word has length 154 [2023-12-21 13:54:19,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:54:19,009 INFO L495 AbstractCegarLoop]: Abstraction has 8337 states and 9321 transitions. [2023-12-21 13:54:19,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 73 states, 73 states have (on average 6.027397260273973) internal successors, (440), 72 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) [2023-12-21 13:54:19,009 INFO L276 IsEmpty]: Start isEmpty. Operand 8337 states and 9321 transitions. [2023-12-21 13:54:19,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-21 13:54:19,010 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:54:19,010 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-21 13:54:19,016 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2023-12-21 13:54:19,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2023-12-21 13:54:19,211 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:54:19,211 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:54:19,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1148756327, now seen corresponding path program 1 times [2023-12-21 13:54:19,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:54:19,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595625580] [2023-12-21 13:54:19,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:54:19,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:54:19,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:54:19,335 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2023-12-21 13:54:19,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:54:19,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595625580] [2023-12-21 13:54:19,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595625580] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:54:19,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:54:19,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 13:54:19,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521377079] [2023-12-21 13:54:19,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:54:19,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 13:54:19,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:54:19,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 13:54:19,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-21 13:54:19,337 INFO L87 Difference]: Start difference. First operand 8337 states and 9321 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:54:19,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:54:19,397 INFO L93 Difference]: Finished difference Result 11279 states and 12677 transitions. [2023-12-21 13:54:19,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 13:54:19,397 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 0 states have call successors, (0), 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 154 [2023-12-21 13:54:19,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:54:19,405 INFO L225 Difference]: With dead ends: 11279 [2023-12-21 13:54:19,405 INFO L226 Difference]: Without dead ends: 8353 [2023-12-21 13:54:19,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-21 13:54:19,408 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 197 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:54:19,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 403 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:54:19,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8353 states. [2023-12-21 13:54:19,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8353 to 8121. [2023-12-21 13:54:19,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8121 states, 8120 states have (on average 1.1035714285714286) internal successors, (8961), 8120 states have internal predecessors, (8961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:54:19,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8121 states to 8121 states and 8961 transitions. [2023-12-21 13:54:19,478 INFO L78 Accepts]: Start accepts. Automaton has 8121 states and 8961 transitions. Word has length 154 [2023-12-21 13:54:19,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:54:19,479 INFO L495 AbstractCegarLoop]: Abstraction has 8121 states and 8961 transitions. [2023-12-21 13:54:19,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:54:19,479 INFO L276 IsEmpty]: Start isEmpty. Operand 8121 states and 8961 transitions. [2023-12-21 13:54:19,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-21 13:54:19,480 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:54:19,480 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-21 13:54:19,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2023-12-21 13:54:19,480 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:54:19,480 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:54:19,481 INFO L85 PathProgramCache]: Analyzing trace with hash -726054501, now seen corresponding path program 1 times [2023-12-21 13:54:19,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:54:19,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132276169] [2023-12-21 13:54:19,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:54:19,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:54:19,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:54:20,330 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 40 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:54:20,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:54:20,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132276169] [2023-12-21 13:54:20,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132276169] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:54:20,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [575860411] [2023-12-21 13:54:20,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:54:20,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:54:20,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:54:20,332 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 13:54:20,333 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2023-12-21 13:54:20,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:54:20,499 INFO L262 TraceCheckSpWp]: Trace formula consists of 567 conjuncts, 51 conjunts are in the unsatisfiable core [2023-12-21 13:54:20,501 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:54:23,279 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 40 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:54:23,279 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 13:54:26,584 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 40 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:54:26,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [575860411] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 13:54:26,584 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 13:54:26,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 26, 25] total 70 [2023-12-21 13:54:26,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195549732] [2023-12-21 13:54:26,584 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 13:54:26,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2023-12-21 13:54:26,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:54:26,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2023-12-21 13:54:26,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=450, Invalid=4520, Unknown=0, NotChecked=0, Total=4970 [2023-12-21 13:54:26,586 INFO L87 Difference]: Start difference. First operand 8121 states and 8961 transitions. Second operand has 71 states, 71 states have (on average 5.915492957746479) internal successors, (420), 70 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:55:02,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:55:02,317 INFO L93 Difference]: Finished difference Result 15530 states and 17288 transitions. [2023-12-21 13:55:02,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 238 states. [2023-12-21 13:55:02,317 INFO L78 Accepts]: Start accepts. Automaton has has 71 states, 71 states have (on average 5.915492957746479) internal successors, (420), 70 states have internal predecessors, (420), 0 states have call successors, (0), 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 154 [2023-12-21 13:55:02,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:55:02,325 INFO L225 Difference]: With dead ends: 15530 [2023-12-21 13:55:02,325 INFO L226 Difference]: Without dead ends: 9980 [2023-12-21 13:55:02,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 560 GetRequests, 259 SyntacticMatches, 1 SemanticMatches, 300 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31752 ImplicationChecksByTransitivity, 32.8s TimeCoverageRelationStatistics Valid=10389, Invalid=80513, Unknown=0, NotChecked=0, Total=90902 [2023-12-21 13:55:02,333 INFO L413 NwaCegarLoop]: 274 mSDtfsCounter, 5118 mSDsluCounter, 7205 mSDsCounter, 0 mSdLazyCounter, 7530 mSolverCounterSat, 243 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5118 SdHoareTripleChecker+Valid, 7479 SdHoareTripleChecker+Invalid, 7773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 243 IncrementalHoareTripleChecker+Valid, 7530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:55:02,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5118 Valid, 7479 Invalid, 7773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [243 Valid, 7530 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2023-12-21 13:55:02,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9980 states. [2023-12-21 13:55:02,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9980 to 5225. [2023-12-21 13:55:02,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5225 states, 5224 states have (on average 1.1008805513016846) internal successors, (5751), 5224 states have internal predecessors, (5751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:55:02,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5225 states to 5225 states and 5751 transitions. [2023-12-21 13:55:02,383 INFO L78 Accepts]: Start accepts. Automaton has 5225 states and 5751 transitions. Word has length 154 [2023-12-21 13:55:02,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:55:02,383 INFO L495 AbstractCegarLoop]: Abstraction has 5225 states and 5751 transitions. [2023-12-21 13:55:02,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 71 states, 71 states have (on average 5.915492957746479) internal successors, (420), 70 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:55:02,384 INFO L276 IsEmpty]: Start isEmpty. Operand 5225 states and 5751 transitions. [2023-12-21 13:55:02,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-12-21 13:55:02,384 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:55:02,384 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-21 13:55:02,389 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2023-12-21 13:55:02,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable71 [2023-12-21 13:55:02,585 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:55:02,585 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:55:02,585 INFO L85 PathProgramCache]: Analyzing trace with hash 733762706, now seen corresponding path program 1 times [2023-12-21 13:55:02,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:55:02,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477774460] [2023-12-21 13:55:02,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:55:02,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:55:02,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:55:03,579 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 68 proven. 6 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 13:55:03,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:55:03,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477774460] [2023-12-21 13:55:03,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477774460] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:55:03,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1415476155] [2023-12-21 13:55:03,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:55:03,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:55:03,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:55:03,581 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 13:55:03,582 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2023-12-21 13:55:03,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:55:03,743 INFO L262 TraceCheckSpWp]: Trace formula consists of 561 conjuncts, 44 conjunts are in the unsatisfiable core [2023-12-21 13:55:03,746 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:55:06,486 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 33 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:55:06,486 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 13:55:10,367 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 50 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:55:10,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1415476155] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 13:55:10,367 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 13:55:10,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 26] total 74 [2023-12-21 13:55:10,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371645485] [2023-12-21 13:55:10,367 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 13:55:10,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 75 states [2023-12-21 13:55:10,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:55:10,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2023-12-21 13:55:10,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=426, Invalid=5124, Unknown=0, NotChecked=0, Total=5550 [2023-12-21 13:55:10,369 INFO L87 Difference]: Start difference. First operand 5225 states and 5751 transitions. Second operand has 75 states, 75 states have (on average 5.733333333333333) internal successors, (430), 74 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:55:19,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:55:19,452 INFO L93 Difference]: Finished difference Result 15658 states and 17549 transitions. [2023-12-21 13:55:19,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2023-12-21 13:55:19,452 INFO L78 Accepts]: Start accepts. Automaton has has 75 states, 75 states have (on average 5.733333333333333) internal successors, (430), 74 states have internal predecessors, (430), 0 states have call successors, (0), 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 160 [2023-12-21 13:55:19,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:55:19,463 INFO L225 Difference]: With dead ends: 15658 [2023-12-21 13:55:19,463 INFO L226 Difference]: Without dead ends: 12875 [2023-12-21 13:55:19,469 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 431 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 161 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6460 ImplicationChecksByTransitivity, 9.3s TimeCoverageRelationStatistics Valid=3449, Invalid=22957, Unknown=0, NotChecked=0, Total=26406 [2023-12-21 13:55:19,469 INFO L413 NwaCegarLoop]: 386 mSDtfsCounter, 2703 mSDsluCounter, 11905 mSDsCounter, 0 mSdLazyCounter, 5420 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2703 SdHoareTripleChecker+Valid, 12291 SdHoareTripleChecker+Invalid, 5455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 5420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-12-21 13:55:19,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2703 Valid, 12291 Invalid, 5455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 5420 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-12-21 13:55:19,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12875 states. [2023-12-21 13:55:19,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12875 to 4581. [2023-12-21 13:55:19,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4581 states, 4580 states have (on average 1.1039301310043668) internal successors, (5056), 4580 states have internal predecessors, (5056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:55:19,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4581 states to 4581 states and 5056 transitions. [2023-12-21 13:55:19,519 INFO L78 Accepts]: Start accepts. Automaton has 4581 states and 5056 transitions. Word has length 160 [2023-12-21 13:55:19,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:55:19,519 INFO L495 AbstractCegarLoop]: Abstraction has 4581 states and 5056 transitions. [2023-12-21 13:55:19,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 75 states, 75 states have (on average 5.733333333333333) internal successors, (430), 74 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:55:19,520 INFO L276 IsEmpty]: Start isEmpty. Operand 4581 states and 5056 transitions. [2023-12-21 13:55:19,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2023-12-21 13:55:19,520 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:55:19,520 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-21 13:55:19,526 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2023-12-21 13:55:19,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:55:19,721 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:55:19,721 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:55:19,722 INFO L85 PathProgramCache]: Analyzing trace with hash 561526948, now seen corresponding path program 1 times [2023-12-21 13:55:19,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:55:19,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800312376] [2023-12-21 13:55:19,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:55:19,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:55:19,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:55:21,651 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 45 proven. 186 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-21 13:55:21,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:55:21,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800312376] [2023-12-21 13:55:21,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800312376] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:55:21,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [594953148] [2023-12-21 13:55:21,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:55:21,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:55:21,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:55:21,652 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 13:55:21,654 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2023-12-21 13:55:21,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:55:21,825 INFO L262 TraceCheckSpWp]: Trace formula consists of 707 conjuncts, 43 conjunts are in the unsatisfiable core [2023-12-21 13:55:21,827 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:55:23,899 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 55 proven. 195 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-21 13:55:23,899 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 13:55:26,499 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 73 proven. 177 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-21 13:55:26,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [594953148] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 13:55:26,500 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 13:55:26,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 22, 20] total 69 [2023-12-21 13:55:26,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139859779] [2023-12-21 13:55:26,500 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 13:55:26,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 69 states [2023-12-21 13:55:26,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:55:26,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2023-12-21 13:55:26,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=328, Invalid=4364, Unknown=0, NotChecked=0, Total=4692 [2023-12-21 13:55:26,501 INFO L87 Difference]: Start difference. First operand 4581 states and 5056 transitions. Second operand has 69 states, 69 states have (on average 8.043478260869565) internal successors, (555), 69 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:55:40,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:55:40,382 INFO L93 Difference]: Finished difference Result 9740 states and 10956 transitions. [2023-12-21 13:55:40,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2023-12-21 13:55:40,383 INFO L78 Accepts]: Start accepts. Automaton has has 69 states, 69 states have (on average 8.043478260869565) internal successors, (555), 69 states have internal predecessors, (555), 0 states have call successors, (0), 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 202 [2023-12-21 13:55:40,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:55:40,390 INFO L225 Difference]: With dead ends: 9740 [2023-12-21 13:55:40,390 INFO L226 Difference]: Without dead ends: 9006 [2023-12-21 13:55:40,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 521 GetRequests, 368 SyntacticMatches, 0 SemanticMatches, 153 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5649 ImplicationChecksByTransitivity, 12.6s TimeCoverageRelationStatistics Valid=3168, Invalid=20702, Unknown=0, NotChecked=0, Total=23870 [2023-12-21 13:55:40,394 INFO L413 NwaCegarLoop]: 315 mSDtfsCounter, 2062 mSDsluCounter, 12355 mSDsCounter, 0 mSdLazyCounter, 5167 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2062 SdHoareTripleChecker+Valid, 12670 SdHoareTripleChecker+Invalid, 5192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 5167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-12-21 13:55:40,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2062 Valid, 12670 Invalid, 5192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 5167 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-12-21 13:55:40,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9006 states. [2023-12-21 13:55:40,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9006 to 4060. [2023-12-21 13:55:40,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4060 states, 4059 states have (on average 1.1047055925104705) internal successors, (4484), 4059 states have internal predecessors, (4484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:55:40,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4060 states to 4060 states and 4484 transitions. [2023-12-21 13:55:40,433 INFO L78 Accepts]: Start accepts. Automaton has 4060 states and 4484 transitions. Word has length 202 [2023-12-21 13:55:40,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:55:40,433 INFO L495 AbstractCegarLoop]: Abstraction has 4060 states and 4484 transitions. [2023-12-21 13:55:40,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 69 states, 69 states have (on average 8.043478260869565) internal successors, (555), 69 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:55:40,433 INFO L276 IsEmpty]: Start isEmpty. Operand 4060 states and 4484 transitions. [2023-12-21 13:55:40,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2023-12-21 13:55:40,434 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:55:40,434 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2023-12-21 13:55:40,440 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2023-12-21 13:55:40,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:55:40,635 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:55:40,635 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:55:40,635 INFO L85 PathProgramCache]: Analyzing trace with hash -586476860, now seen corresponding path program 1 times [2023-12-21 13:55:40,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:55:40,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449491002] [2023-12-21 13:55:40,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:55:40,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:55:40,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:55:41,178 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 127 proven. 237 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-12-21 13:55:41,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:55:41,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449491002] [2023-12-21 13:55:41,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449491002] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:55:41,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1304625351] [2023-12-21 13:55:41,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:55:41,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:55:41,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:55:41,179 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 13:55:41,180 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2023-12-21 13:55:41,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:55:41,388 INFO L262 TraceCheckSpWp]: Trace formula consists of 843 conjuncts, 101 conjunts are in the unsatisfiable core [2023-12-21 13:55:41,392 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:55:45,429 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 284 proven. 145 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2023-12-21 13:55:45,429 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 13:56:00,034 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 38 proven. 442 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:56:00,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1304625351] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 13:56:00,034 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 13:56:00,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 38, 46] total 97 [2023-12-21 13:56:00,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919627460] [2023-12-21 13:56:00,034 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 13:56:00,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 97 states [2023-12-21 13:56:00,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:56:00,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2023-12-21 13:56:00,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1701, Invalid=7611, Unknown=0, NotChecked=0, Total=9312 [2023-12-21 13:56:00,036 INFO L87 Difference]: Start difference. First operand 4060 states and 4484 transitions. Second operand has 97 states, 97 states have (on average 6.463917525773196) internal successors, (627), 97 states have internal predecessors, (627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:56:46,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:56:46,482 INFO L93 Difference]: Finished difference Result 8112 states and 8918 transitions. [2023-12-21 13:56:46,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2023-12-21 13:56:46,483 INFO L78 Accepts]: Start accepts. Automaton has has 97 states, 97 states have (on average 6.463917525773196) internal successors, (627), 97 states have internal predecessors, (627), 0 states have call successors, (0), 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 248 [2023-12-21 13:56:46,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:56:46,487 INFO L225 Difference]: With dead ends: 8112 [2023-12-21 13:56:46,487 INFO L226 Difference]: Without dead ends: 5864 [2023-12-21 13:56:46,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 637 GetRequests, 416 SyntacticMatches, 1 SemanticMatches, 220 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15349 ImplicationChecksByTransitivity, 47.0s TimeCoverageRelationStatistics Valid=9773, Invalid=39289, Unknown=0, NotChecked=0, Total=49062 [2023-12-21 13:56:46,490 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 2574 mSDsluCounter, 7397 mSDsCounter, 0 mSdLazyCounter, 4778 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2574 SdHoareTripleChecker+Valid, 7604 SdHoareTripleChecker+Invalid, 4853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 4778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2023-12-21 13:56:46,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2574 Valid, 7604 Invalid, 4853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 4778 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2023-12-21 13:56:46,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5864 states. [2023-12-21 13:56:46,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5864 to 3530. [2023-12-21 13:56:46,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3530 states, 3529 states have (on average 1.1014451686030038) internal successors, (3887), 3529 states have internal predecessors, (3887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:56:46,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3530 states to 3530 states and 3887 transitions. [2023-12-21 13:56:46,521 INFO L78 Accepts]: Start accepts. Automaton has 3530 states and 3887 transitions. Word has length 248 [2023-12-21 13:56:46,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:56:46,521 INFO L495 AbstractCegarLoop]: Abstraction has 3530 states and 3887 transitions. [2023-12-21 13:56:46,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 97 states, 97 states have (on average 6.463917525773196) internal successors, (627), 97 states have internal predecessors, (627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:56:46,521 INFO L276 IsEmpty]: Start isEmpty. Operand 3530 states and 3887 transitions. [2023-12-21 13:56:46,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2023-12-21 13:56:46,522 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:56:46,522 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2023-12-21 13:56:46,528 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2023-12-21 13:56:46,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable74 [2023-12-21 13:56:46,723 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:56:46,723 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:56:46,723 INFO L85 PathProgramCache]: Analyzing trace with hash 197822367, now seen corresponding path program 1 times [2023-12-21 13:56:46,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:56:46,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853887407] [2023-12-21 13:56:46,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:56:46,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:56:46,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:56:47,472 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 84 proven. 376 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-21 13:56:47,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:56:47,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853887407] [2023-12-21 13:56:47,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853887407] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:56:47,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [458716912] [2023-12-21 13:56:47,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:56:47,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:56:47,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:56:47,474 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 13:56:47,476 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2023-12-21 13:56:47,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:56:47,696 INFO L262 TraceCheckSpWp]: Trace formula consists of 843 conjuncts, 38 conjunts are in the unsatisfiable core [2023-12-21 13:56:47,699 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:56:49,665 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 110 proven. 318 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-12-21 13:56:49,665 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 13:56:54,140 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 132 proven. 326 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-21 13:56:54,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [458716912] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 13:56:54,140 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 13:56:54,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 22, 22] total 59 [2023-12-21 13:56:54,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281377935] [2023-12-21 13:56:54,141 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 13:56:54,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2023-12-21 13:56:54,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:56:54,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2023-12-21 13:56:54,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=386, Invalid=3036, Unknown=0, NotChecked=0, Total=3422 [2023-12-21 13:56:54,142 INFO L87 Difference]: Start difference. First operand 3530 states and 3887 transitions. Second operand has 59 states, 59 states have (on average 11.11864406779661) internal successors, (656), 59 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:57:00,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:57:00,819 INFO L93 Difference]: Finished difference Result 5268 states and 5811 transitions. [2023-12-21 13:57:00,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2023-12-21 13:57:00,820 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 59 states have (on average 11.11864406779661) internal successors, (656), 59 states have internal predecessors, (656), 0 states have call successors, (0), 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 248 [2023-12-21 13:57:00,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:57:00,822 INFO L225 Difference]: With dead ends: 5268 [2023-12-21 13:57:00,822 INFO L226 Difference]: Without dead ends: 2446 [2023-12-21 13:57:00,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 575 GetRequests, 457 SyntacticMatches, 0 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3051 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=2739, Invalid=11541, Unknown=0, NotChecked=0, Total=14280 [2023-12-21 13:57:00,824 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 1238 mSDsluCounter, 5130 mSDsCounter, 0 mSdLazyCounter, 2585 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1238 SdHoareTripleChecker+Valid, 5282 SdHoareTripleChecker+Invalid, 2597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 2585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-21 13:57:00,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1238 Valid, 5282 Invalid, 2597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 2585 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-21 13:57:00,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2446 states. [2023-12-21 13:57:00,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2446 to 1018. [2023-12-21 13:57:00,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1018 states, 1017 states have (on average 1.0943952802359882) internal successors, (1113), 1017 states have internal predecessors, (1113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:57:00,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1018 states to 1018 states and 1113 transitions. [2023-12-21 13:57:00,832 INFO L78 Accepts]: Start accepts. Automaton has 1018 states and 1113 transitions. Word has length 248 [2023-12-21 13:57:00,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:57:00,832 INFO L495 AbstractCegarLoop]: Abstraction has 1018 states and 1113 transitions. [2023-12-21 13:57:00,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 59 states have (on average 11.11864406779661) internal successors, (656), 59 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:57:00,832 INFO L276 IsEmpty]: Start isEmpty. Operand 1018 states and 1113 transitions. [2023-12-21 13:57:00,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2023-12-21 13:57:00,833 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:57:00,833 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 9, 9, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 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] [2023-12-21 13:57:00,842 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2023-12-21 13:57:01,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75,35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:57:01,040 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:57:01,041 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:57:01,041 INFO L85 PathProgramCache]: Analyzing trace with hash 704204896, now seen corresponding path program 1 times [2023-12-21 13:57:01,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:57:01,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336070437] [2023-12-21 13:57:01,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:57:01,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:57:01,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:57:01,763 INFO L134 CoverageAnalysis]: Checked inductivity of 787 backedges. 440 proven. 207 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2023-12-21 13:57:01,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:57:01,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336070437] [2023-12-21 13:57:01,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336070437] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:57:01,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1837597549] [2023-12-21 13:57:01,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:57:01,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:57:01,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:57:01,765 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 13:57:01,766 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2023-12-21 13:57:01,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:57:01,963 INFO L262 TraceCheckSpWp]: Trace formula consists of 978 conjuncts, 42 conjunts are in the unsatisfiable core [2023-12-21 13:57:01,967 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:57:03,757 INFO L134 CoverageAnalysis]: Checked inductivity of 787 backedges. 488 proven. 233 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-12-21 13:57:03,757 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 13:57:05,772 INFO L134 CoverageAnalysis]: Checked inductivity of 787 backedges. 557 proven. 164 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-12-21 13:57:05,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1837597549] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 13:57:05,772 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 13:57:05,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 23, 21] total 59 [2023-12-21 13:57:05,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093691603] [2023-12-21 13:57:05,772 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 13:57:05,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2023-12-21 13:57:05,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:57:05,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2023-12-21 13:57:05,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=203, Invalid=3219, Unknown=0, NotChecked=0, Total=3422 [2023-12-21 13:57:05,774 INFO L87 Difference]: Start difference. First operand 1018 states and 1113 transitions. Second operand has 59 states, 59 states have (on average 11.0) internal successors, (649), 59 states have internal predecessors, (649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:57:19,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:57:19,130 INFO L93 Difference]: Finished difference Result 1562 states and 1687 transitions. [2023-12-21 13:57:19,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2023-12-21 13:57:19,131 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 59 states have (on average 11.0) internal successors, (649), 59 states have internal predecessors, (649), 0 states have call successors, (0), 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 298 [2023-12-21 13:57:19,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:57:19,131 INFO L225 Difference]: With dead ends: 1562 [2023-12-21 13:57:19,131 INFO L226 Difference]: Without dead ends: 0 [2023-12-21 13:57:19,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 697 GetRequests, 569 SyntacticMatches, 0 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3351 ImplicationChecksByTransitivity, 12.8s TimeCoverageRelationStatistics Valid=2639, Invalid=14131, Unknown=0, NotChecked=0, Total=16770 [2023-12-21 13:57:19,133 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 1113 mSDsluCounter, 4876 mSDsCounter, 0 mSdLazyCounter, 3057 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1113 SdHoareTripleChecker+Valid, 5062 SdHoareTripleChecker+Invalid, 3089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 3057 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-21 13:57:19,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1113 Valid, 5062 Invalid, 3089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 3057 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-21 13:57:19,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-21 13:57:19,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-21 13:57:19,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:57:19,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-21 13:57:19,133 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 298 [2023-12-21 13:57:19,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:57:19,133 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-21 13:57:19,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 59 states have (on average 11.0) internal successors, (649), 59 states have internal predecessors, (649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:57:19,134 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-21 13:57:19,134 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-21 13:57:19,135 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2023-12-21 13:57:19,136 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2023-12-21 13:57:19,136 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2023-12-21 13:57:19,136 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (3 of 7 remaining) [2023-12-21 13:57:19,136 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (2 of 7 remaining) [2023-12-21 13:57:19,136 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2023-12-21 13:57:19,136 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2023-12-21 13:57:19,142 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2023-12-21 13:57:19,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable76 [2023-12-21 13:57:19,338 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-21 13:57:19,342 INFO L899 garLoopResultBuilder]: For program point L828(lines 828 1062) no Hoare annotation was computed. [2023-12-21 13:57:19,342 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 631) no Hoare annotation was computed. [2023-12-21 13:57:19,342 INFO L899 garLoopResultBuilder]: For program point L1522(lines 1522 1648) no Hoare annotation was computed. [2023-12-21 13:57:19,342 INFO L899 garLoopResultBuilder]: For program point L1357(lines 1357 1505) no Hoare annotation was computed. [2023-12-21 13:57:19,342 INFO L899 garLoopResultBuilder]: For program point L1225(lines 1225 1255) no Hoare annotation was computed. [2023-12-21 13:57:19,342 INFO L899 garLoopResultBuilder]: For program point L102(lines 102 1721) no Hoare annotation was computed. [2023-12-21 13:57:19,342 INFO L899 garLoopResultBuilder]: For program point L1027(lines 1027 1037) no Hoare annotation was computed. [2023-12-21 13:57:19,342 INFO L899 garLoopResultBuilder]: For program point L928(line 928) no Hoare annotation was computed. [2023-12-21 13:57:19,342 INFO L899 garLoopResultBuilder]: For program point L697(lines 697 728) no Hoare annotation was computed. [2023-12-21 13:57:19,342 INFO L899 garLoopResultBuilder]: For program point L631(line 631) no Hoare annotation was computed. [2023-12-21 13:57:19,342 INFO L899 garLoopResultBuilder]: For program point L1622(lines 1622 1629) no Hoare annotation was computed. [2023-12-21 13:57:19,342 INFO L899 garLoopResultBuilder]: For program point L334(lines 334 521) no Hoare annotation was computed. [2023-12-21 13:57:19,342 INFO L899 garLoopResultBuilder]: For program point L268(lines 268 658) no Hoare annotation was computed. [2023-12-21 13:57:19,342 INFO L899 garLoopResultBuilder]: For program point L1292(lines 1292 1315) no Hoare annotation was computed. [2023-12-21 13:57:19,342 INFO L899 garLoopResultBuilder]: For program point L764(lines 764 772) no Hoare annotation was computed. [2023-12-21 13:57:19,342 INFO L899 garLoopResultBuilder]: For program point L1557(lines 1557 1564) no Hoare annotation was computed. [2023-12-21 13:57:19,342 INFO L899 garLoopResultBuilder]: For program point L500(lines 500 520) no Hoare annotation was computed. [2023-12-21 13:57:19,342 INFO L899 garLoopResultBuilder]: For program point L1524(lines 1524 1587) no Hoare annotation was computed. [2023-12-21 13:57:19,342 INFO L899 garLoopResultBuilder]: For program point L467(lines 455 475) no Hoare annotation was computed. [2023-12-21 13:57:19,342 INFO L899 garLoopResultBuilder]: For program point L1227(lines 1227 1250) no Hoare annotation was computed. [2023-12-21 13:57:19,343 INFO L899 garLoopResultBuilder]: For program point L104(lines 104 1716) no Hoare annotation was computed. [2023-12-21 13:57:19,343 INFO L899 garLoopResultBuilder]: For program point L831(lines 828 1062) no Hoare annotation was computed. [2023-12-21 13:57:19,343 INFO L899 garLoopResultBuilder]: For program point L402(lines 402 411) no Hoare annotation was computed. [2023-12-21 13:57:19,343 INFO L899 garLoopResultBuilder]: For program point L369(lines 369 431) no Hoare annotation was computed. [2023-12-21 13:57:19,343 INFO L899 garLoopResultBuilder]: For program point L270(lines 270 652) no Hoare annotation was computed. [2023-12-21 13:57:19,343 INFO L899 garLoopResultBuilder]: For program point L1195(lines 1195 1329) no Hoare annotation was computed. [2023-12-21 13:57:19,343 INFO L899 garLoopResultBuilder]: For program point L865(lines 865 889) no Hoare annotation was computed. [2023-12-21 13:57:19,343 INFO L899 garLoopResultBuilder]: For program point L766(line 766) no Hoare annotation was computed. [2023-12-21 13:57:19,343 INFO L899 garLoopResultBuilder]: For program point L502(lines 502 515) no Hoare annotation was computed. [2023-12-21 13:57:19,343 INFO L899 garLoopResultBuilder]: For program point L436(lines 436 444) no Hoare annotation was computed. [2023-12-21 13:57:19,343 INFO L899 garLoopResultBuilder]: For program point L1460(lines 1460 1490) no Hoare annotation was computed. [2023-12-21 13:57:19,343 INFO L899 garLoopResultBuilder]: For program point L304(lines 304 573) no Hoare annotation was computed. [2023-12-21 13:57:19,343 INFO L899 garLoopResultBuilder]: For program point L238(lines 238 1086) no Hoare annotation was computed. [2023-12-21 13:57:19,343 INFO L899 garLoopResultBuilder]: For program point L205(lines 205 1105) no Hoare annotation was computed. [2023-12-21 13:57:19,343 INFO L899 garLoopResultBuilder]: For program point L106(lines 106 1711) no Hoare annotation was computed. [2023-12-21 13:57:19,343 INFO L899 garLoopResultBuilder]: For program point L833(lines 826 1068) no Hoare annotation was computed. [2023-12-21 13:57:19,343 INFO L899 garLoopResultBuilder]: For program point L668(lines 668 798) no Hoare annotation was computed. [2023-12-21 13:57:19,343 INFO L899 garLoopResultBuilder]: For program point L371(lines 371 425) no Hoare annotation was computed. [2023-12-21 13:57:19,344 INFO L899 garLoopResultBuilder]: For program point L1395(lines 1395 1425) no Hoare annotation was computed. [2023-12-21 13:57:19,344 INFO L899 garLoopResultBuilder]: For program point L338(lines 338 495) no Hoare annotation was computed. [2023-12-21 13:57:19,344 INFO L899 garLoopResultBuilder]: For program point L966(lines 966 1055) no Hoare annotation was computed. [2023-12-21 13:57:19,344 INFO L899 garLoopResultBuilder]: For program point L900(lines 900 942) no Hoare annotation was computed. [2023-12-21 13:57:19,344 INFO L899 garLoopResultBuilder]: For program point L1462(lines 1462 1485) no Hoare annotation was computed. [2023-12-21 13:57:19,344 INFO L899 garLoopResultBuilder]: For program point L273(lines 270 652) no Hoare annotation was computed. [2023-12-21 13:57:19,344 INFO L899 garLoopResultBuilder]: For program point L240(lines 240 1080) no Hoare annotation was computed. [2023-12-21 13:57:19,344 INFO L899 garLoopResultBuilder]: For program point L207(lines 207 1100) no Hoare annotation was computed. [2023-12-21 13:57:19,344 INFO L899 garLoopResultBuilder]: For program point L141(lines 141 1655) no Hoare annotation was computed. [2023-12-21 13:57:19,344 INFO L899 garLoopResultBuilder]: For program point L108(lines 108 1706) no Hoare annotation was computed. [2023-12-21 13:57:19,344 INFO L899 garLoopResultBuilder]: For program point L1132(lines 1132 1176) no Hoare annotation was computed. [2023-12-21 13:57:19,344 INFO L899 garLoopResultBuilder]: For program point L1000(lines 1000 1008) no Hoare annotation was computed. [2023-12-21 13:57:19,344 INFO L899 garLoopResultBuilder]: For program point L703(lines 703 727) no Hoare annotation was computed. [2023-12-21 13:57:19,344 INFO L899 garLoopResultBuilder]: For program point L505(lines 502 515) no Hoare annotation was computed. [2023-12-21 13:57:19,344 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 719) no Hoare annotation was computed. [2023-12-21 13:57:19,344 INFO L899 garLoopResultBuilder]: For program point L1397(lines 1397 1420) no Hoare annotation was computed. [2023-12-21 13:57:19,344 INFO L899 garLoopResultBuilder]: For program point L340(lines 340 490) no Hoare annotation was computed. [2023-12-21 13:57:19,344 INFO L899 garLoopResultBuilder]: For program point L175(lines 175 1179) no Hoare annotation was computed. [2023-12-21 13:57:19,344 INFO L899 garLoopResultBuilder]: For program point L1365(lines 1365 1499) no Hoare annotation was computed. [2023-12-21 13:57:19,344 INFO L899 garLoopResultBuilder]: For program point L275(lines 268 658) no Hoare annotation was computed. [2023-12-21 13:57:19,344 INFO L899 garLoopResultBuilder]: For program point L110(lines 110 1701) no Hoare annotation was computed. [2023-12-21 13:57:19,344 INFO L899 garLoopResultBuilder]: For program point L1134(lines 1134 1171) no Hoare annotation was computed. [2023-12-21 13:57:19,344 INFO L899 garLoopResultBuilder]: For program point L1002(line 1002) no Hoare annotation was computed. [2023-12-21 13:57:19,344 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 74 1743) no Hoare annotation was computed. [2023-12-21 13:57:19,344 INFO L899 garLoopResultBuilder]: For program point L837(lines 837 954) no Hoare annotation was computed. [2023-12-21 13:57:19,345 INFO L899 garLoopResultBuilder]: For program point L738(lines 738 780) no Hoare annotation was computed. [2023-12-21 13:57:19,345 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 881) no Hoare annotation was computed. [2023-12-21 13:57:19,345 INFO L899 garLoopResultBuilder]: For program point L243(lines 240 1080) no Hoare annotation was computed. [2023-12-21 13:57:19,345 INFO L899 garLoopResultBuilder]: For program point L970(lines 970 1050) no Hoare annotation was computed. [2023-12-21 13:57:19,345 INFO L899 garLoopResultBuilder]: For program point L607(lines 607 645) no Hoare annotation was computed. [2023-12-21 13:57:19,345 INFO L899 garLoopResultBuilder]: For program point L343(lines 338 495) no Hoare annotation was computed. [2023-12-21 13:57:19,345 INFO L899 garLoopResultBuilder]: For program point L310(lines 309 573) no Hoare annotation was computed. [2023-12-21 13:57:19,345 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 766) no Hoare annotation was computed. [2023-12-21 13:57:19,345 INFO L899 garLoopResultBuilder]: For program point L1202(lines 1202 1328) no Hoare annotation was computed. [2023-12-21 13:57:19,345 INFO L899 garLoopResultBuilder]: For program point L112(lines 112 1696) no Hoare annotation was computed. [2023-12-21 13:57:19,345 INFO L899 garLoopResultBuilder]: For program point L377(lines 369 431) no Hoare annotation was computed. [2023-12-21 13:57:19,345 INFO L899 garLoopResultBuilder]: For program point L1302(lines 1302 1309) no Hoare annotation was computed. [2023-12-21 13:57:19,345 INFO L899 garLoopResultBuilder]: For program point L245(lines 238 1086) no Hoare annotation was computed. [2023-12-21 13:57:19,345 INFO L899 garLoopResultBuilder]: For program point L972(lines 972 1044) no Hoare annotation was computed. [2023-12-21 13:57:19,345 INFO L899 garLoopResultBuilder]: For program point L675(lines 675 792) no Hoare annotation was computed. [2023-12-21 13:57:19,345 INFO L899 garLoopResultBuilder]: For program point L609(lines 609 640) no Hoare annotation was computed. [2023-12-21 13:57:19,345 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 928) no Hoare annotation was computed. [2023-12-21 13:57:19,345 INFO L899 garLoopResultBuilder]: For program point L345(lines 334 521) no Hoare annotation was computed. [2023-12-21 13:57:19,345 INFO L899 garLoopResultBuilder]: For program point L1237(lines 1237 1244) no Hoare annotation was computed. [2023-12-21 13:57:19,345 INFO L899 garLoopResultBuilder]: For program point L1204(lines 1204 1267) no Hoare annotation was computed. [2023-12-21 13:57:19,345 INFO L899 garLoopResultBuilder]: For program point L114(lines 114 1691) no Hoare annotation was computed. [2023-12-21 13:57:19,345 INFO L899 garLoopResultBuilder]: For program point L841(lines 841 949) no Hoare annotation was computed. [2023-12-21 13:57:19,345 INFO L899 garLoopResultBuilder]: For program point L148(lines 148 1654) no Hoare annotation was computed. [2023-12-21 13:57:19,345 INFO L899 garLoopResultBuilder]: For program point L1602(lines 1602 1646) no Hoare annotation was computed. [2023-12-21 13:57:19,345 INFO L899 garLoopResultBuilder]: For program point L512(lines 500 520) no Hoare annotation was computed. [2023-12-21 13:57:19,345 INFO L899 garLoopResultBuilder]: For program point L314(lines 314 571) no Hoare annotation was computed. [2023-12-21 13:57:19,345 INFO L899 garLoopResultBuilder]: For program point L182(lines 182 1178) no Hoare annotation was computed. [2023-12-21 13:57:19,345 INFO L899 garLoopResultBuilder]: For program point L116(lines 116 1686) no Hoare annotation was computed. [2023-12-21 13:57:19,345 INFO L899 garLoopResultBuilder]: For program point L1140(lines 1140 1170) no Hoare annotation was computed. [2023-12-21 13:57:19,346 INFO L899 garLoopResultBuilder]: For program point L975(lines 972 1044) no Hoare annotation was computed. [2023-12-21 13:57:19,346 INFO L899 garLoopResultBuilder]: For program point L843(lines 843 943) no Hoare annotation was computed. [2023-12-21 13:57:19,346 INFO L899 garLoopResultBuilder]: For program point L1537(lines 1537 1581) no Hoare annotation was computed. [2023-12-21 13:57:19,346 INFO L899 garLoopResultBuilder]: For program point L1372(lines 1372 1498) no Hoare annotation was computed. [2023-12-21 13:57:19,346 INFO L899 garLoopResultBuilder]: For program point L249(lines 249 810) no Hoare annotation was computed. [2023-12-21 13:57:19,346 INFO L899 garLoopResultBuilder]: For program point L150(lines 150 1338) no Hoare annotation was computed. [2023-12-21 13:57:19,346 INFO L899 garLoopResultBuilder]: For program point L679(lines 679 787) no Hoare annotation was computed. [2023-12-21 13:57:19,346 INFO L899 garLoopResultBuilder]: For program point L1604(lines 1604 1641) no Hoare annotation was computed. [2023-12-21 13:57:19,346 INFO L899 garLoopResultBuilder]: For program point L481(lines 481 489) no Hoare annotation was computed. [2023-12-21 13:57:19,346 INFO L899 garLoopResultBuilder]: For program point L1472(lines 1472 1479) no Hoare annotation was computed. [2023-12-21 13:57:19,346 INFO L899 garLoopResultBuilder]: For program point L382(lines 240 1080) no Hoare annotation was computed. [2023-12-21 13:57:19,346 INFO L899 garLoopResultBuilder]: For program point L349(lines 349 476) no Hoare annotation was computed. [2023-12-21 13:57:19,346 INFO L899 garLoopResultBuilder]: For program point L316(lines 316 545) no Hoare annotation was computed. [2023-12-21 13:57:19,346 INFO L899 garLoopResultBuilder]: For program point L217(lines 217 1094) no Hoare annotation was computed. [2023-12-21 13:57:19,346 INFO L899 garLoopResultBuilder]: For program point L184(lines 184 1117) no Hoare annotation was computed. [2023-12-21 13:57:19,346 INFO L899 garLoopResultBuilder]: For program point L118(lines 118 1681) no Hoare annotation was computed. [2023-12-21 13:57:19,346 INFO L899 garLoopResultBuilder]: For program point L1142(lines 1142 1165) no Hoare annotation was computed. [2023-12-21 13:57:19,346 INFO L899 garLoopResultBuilder]: For program point L977(lines 970 1050) no Hoare annotation was computed. [2023-12-21 13:57:19,346 INFO L899 garLoopResultBuilder]: For program point L1539(lines 1539 1576) no Hoare annotation was computed. [2023-12-21 13:57:19,346 INFO L899 garLoopResultBuilder]: For program point L416(lines 416 424) no Hoare annotation was computed. [2023-12-21 13:57:19,346 INFO L899 garLoopResultBuilder]: For program point L1407(lines 1407 1414) no Hoare annotation was computed. [2023-12-21 13:57:19,346 INFO L899 garLoopResultBuilder]: For program point L1374(lines 1374 1437) no Hoare annotation was computed. [2023-12-21 13:57:19,346 INFO L899 garLoopResultBuilder]: For program point L284(lines 284 590) no Hoare annotation was computed. [2023-12-21 13:57:19,346 INFO L899 garLoopResultBuilder]: For program point L912(lines 912 936) no Hoare annotation was computed. [2023-12-21 13:57:19,346 INFO L899 garLoopResultBuilder]: For program point L879(lines 879 887) no Hoare annotation was computed. [2023-12-21 13:57:19,346 INFO L899 garLoopResultBuilder]: For program point L846(lines 843 943) no Hoare annotation was computed. [2023-12-21 13:57:19,346 INFO L899 garLoopResultBuilder]: For program point L681(lines 681 781) no Hoare annotation was computed. [2023-12-21 13:57:19,346 INFO L899 garLoopResultBuilder]: For program point L615(lines 615 639) no Hoare annotation was computed. [2023-12-21 13:57:19,346 INFO L899 garLoopResultBuilder]: For program point L120(lines 120 1676) no Hoare annotation was computed. [2023-12-21 13:57:19,347 INFO L899 garLoopResultBuilder]: For program point L550(lines 550 570) no Hoare annotation was computed. [2023-12-21 13:57:19,347 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 1002) no Hoare annotation was computed. [2023-12-21 13:57:19,347 INFO L899 garLoopResultBuilder]: For program point L319(lines 316 545) no Hoare annotation was computed. [2023-12-21 13:57:19,347 INFO L899 garLoopResultBuilder]: For program point L286(lines 286 585) no Hoare annotation was computed. [2023-12-21 13:57:19,347 INFO L899 garLoopResultBuilder]: For program point L253(lines 253 805) no Hoare annotation was computed. [2023-12-21 13:57:19,347 INFO L899 garLoopResultBuilder]: For program point L881(line 881) no Hoare annotation was computed. [2023-12-21 13:57:19,347 INFO L899 garLoopResultBuilder]: For program point L848(lines 841 949) no Hoare annotation was computed. [2023-12-21 13:57:19,347 INFO L899 garLoopResultBuilder]: For program point L815(lines 815 1079) no Hoare annotation was computed. [2023-12-21 13:57:19,347 INFO L899 garLoopResultBuilder]: For program point L353(lines 353 450) no Hoare annotation was computed. [2023-12-21 13:57:19,347 INFO L899 garLoopResultBuilder]: For program point L122(lines 122 1671) no Hoare annotation was computed. [2023-12-21 13:57:19,347 INFO L899 garLoopResultBuilder]: For program point L750(lines 750 774) no Hoare annotation was computed. [2023-12-21 13:57:19,347 INFO L899 garLoopResultBuilder]: For program point L717(lines 717 725) no Hoare annotation was computed. [2023-12-21 13:57:19,347 INFO L899 garLoopResultBuilder]: For program point L684(lines 681 781) no Hoare annotation was computed. [2023-12-21 13:57:19,347 INFO L899 garLoopResultBuilder]: For program point L552(lines 552 565) no Hoare annotation was computed. [2023-12-21 13:57:19,347 INFO L899 garLoopResultBuilder]: For program point L255(lines 255 799) no Hoare annotation was computed. [2023-12-21 13:57:19,347 INFO L899 garLoopResultBuilder]: For program point L1015(lines 1015 1043) no Hoare annotation was computed. [2023-12-21 13:57:19,347 INFO L899 garLoopResultBuilder]: For program point L1610(lines 1610 1640) no Hoare annotation was computed. [2023-12-21 13:57:19,347 INFO L899 garLoopResultBuilder]: For program point L388(lines 388 397) no Hoare annotation was computed. [2023-12-21 13:57:19,347 INFO L899 garLoopResultBuilder]: For program point L355(lines 355 445) no Hoare annotation was computed. [2023-12-21 13:57:19,347 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-21 13:57:19,347 INFO L899 garLoopResultBuilder]: For program point L223(lines 148 1654) no Hoare annotation was computed. [2023-12-21 13:57:19,347 INFO L899 garLoopResultBuilder]: For program point L124(lines 124 1666) no Hoare annotation was computed. [2023-12-21 13:57:19,347 INFO L899 garLoopResultBuilder]: For program point L719(line 719) no Hoare annotation was computed. [2023-12-21 13:57:19,347 INFO L899 garLoopResultBuilder]: For program point L686(lines 679 787) no Hoare annotation was computed. [2023-12-21 13:57:19,347 INFO L899 garLoopResultBuilder]: For program point L1545(lines 1545 1575) no Hoare annotation was computed. [2023-12-21 13:57:19,347 INFO L899 garLoopResultBuilder]: For program point L455(lines 455 475) no Hoare annotation was computed. [2023-12-21 13:57:19,347 INFO L899 garLoopResultBuilder]: For program point L323(lines 323 540) no Hoare annotation was computed. [2023-12-21 13:57:19,347 INFO L899 garLoopResultBuilder]: For program point L158(lines 158 1332) no Hoare annotation was computed. [2023-12-21 13:57:19,347 INFO L899 garLoopResultBuilder]: For program point L1612(lines 1612 1635) no Hoare annotation was computed. [2023-12-21 13:57:19,348 INFO L899 garLoopResultBuilder]: For program point L555(lines 552 565) no Hoare annotation was computed. [2023-12-21 13:57:19,348 INFO L899 garLoopResultBuilder]: For program point L390(line 390) no Hoare annotation was computed. [2023-12-21 13:57:19,348 INFO L899 garLoopResultBuilder]: For program point L1348(lines 1348 1652) no Hoare annotation was computed. [2023-12-21 13:57:19,348 INFO L899 garLoopResultBuilder]: For program point L258(lines 255 799) no Hoare annotation was computed. [2023-12-21 13:57:19,348 INFO L899 garLoopResultBuilder]: For program point L1282(lines 1282 1326) no Hoare annotation was computed. [2023-12-21 13:57:19,348 INFO L899 garLoopResultBuilder]: For program point L1547(lines 1547 1570) no Hoare annotation was computed. [2023-12-21 13:57:19,348 INFO L899 garLoopResultBuilder]: For program point L457(lines 457 470) no Hoare annotation was computed. [2023-12-21 13:57:19,348 INFO L899 garLoopResultBuilder]: For program point L358(lines 353 450) no Hoare annotation was computed. [2023-12-21 13:57:19,348 INFO L899 garLoopResultBuilder]: For program point L325(lines 325 535) no Hoare annotation was computed. [2023-12-21 13:57:19,348 INFO L899 garLoopResultBuilder]: For program point L292(lines 292 584) no Hoare annotation was computed. [2023-12-21 13:57:19,348 INFO L899 garLoopResultBuilder]: For program point L1217(lines 1217 1261) no Hoare annotation was computed. [2023-12-21 13:57:19,348 INFO L899 garLoopResultBuilder]: For program point L94(lines 94 1741) no Hoare annotation was computed. [2023-12-21 13:57:19,348 INFO L899 garLoopResultBuilder]: For program point L986(lines 986 1010) no Hoare annotation was computed. [2023-12-21 13:57:19,348 INFO L899 garLoopResultBuilder]: For program point L1515(lines 1515 1649) no Hoare annotation was computed. [2023-12-21 13:57:19,348 INFO L899 garLoopResultBuilder]: For program point L260(lines 253 805) no Hoare annotation was computed. [2023-12-21 13:57:19,348 INFO L899 garLoopResultBuilder]: For program point L1284(lines 1284 1321) no Hoare annotation was computed. [2023-12-21 13:57:19,348 INFO L899 garLoopResultBuilder]: For program point L227(lines 227 1092) no Hoare annotation was computed. [2023-12-21 13:57:19,348 INFO L899 garLoopResultBuilder]: For program point L1152(lines 1152 1159) no Hoare annotation was computed. [2023-12-21 13:57:19,348 INFO L899 garLoopResultBuilder]: For program point L822(lines 822 1073) no Hoare annotation was computed. [2023-12-21 13:57:19,348 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-21 13:57:19,348 INFO L899 garLoopResultBuilder]: For program point L360(lines 349 476) no Hoare annotation was computed. [2023-12-21 13:57:19,348 INFO L899 garLoopResultBuilder]: For program point L294(lines 294 579) no Hoare annotation was computed. [2023-12-21 13:57:19,348 INFO L899 garLoopResultBuilder]: For program point L1219(lines 1219 1256) no Hoare annotation was computed. [2023-12-21 13:57:19,349 INFO L899 garLoopResultBuilder]: For program point L129(lines 129 1661) no Hoare annotation was computed. [2023-12-21 13:57:19,349 INFO L899 garLoopResultBuilder]: For program point L96(lines 96 1736) no Hoare annotation was computed. [2023-12-21 13:57:19,349 INFO L899 garLoopResultBuilder]: For program point L526(lines 526 534) no Hoare annotation was computed. [2023-12-21 13:57:19,349 INFO L899 garLoopResultBuilder]: For program point L460(lines 457 470) no Hoare annotation was computed. [2023-12-21 13:57:19,349 INFO L899 garLoopResultBuilder]: For program point L328(lines 323 540) no Hoare annotation was computed. [2023-12-21 13:57:19,349 INFO L899 garLoopResultBuilder]: For program point L229(lines 229 1087) no Hoare annotation was computed. [2023-12-21 13:57:19,349 INFO L899 garLoopResultBuilder]: For program point L857(lines 857 895) no Hoare annotation was computed. [2023-12-21 13:57:19,349 INFO L899 garLoopResultBuilder]: For program point L1452(lines 1452 1496) no Hoare annotation was computed. [2023-12-21 13:57:19,349 INFO L899 garLoopResultBuilder]: For program point L197(lines 197 1111) no Hoare annotation was computed. [2023-12-21 13:57:19,349 INFO L899 garLoopResultBuilder]: For program point L98(lines 98 1731) no Hoare annotation was computed. [2023-12-21 13:57:19,349 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 390) no Hoare annotation was computed. [2023-12-21 13:57:19,349 INFO L899 garLoopResultBuilder]: For program point L1387(lines 1387 1431) no Hoare annotation was computed. [2023-12-21 13:57:19,349 INFO L899 garLoopResultBuilder]: For program point L330(lines 314 571) no Hoare annotation was computed. [2023-12-21 13:57:19,349 INFO L899 garLoopResultBuilder]: For program point L264(lines 264 663) no Hoare annotation was computed. [2023-12-21 13:57:19,349 INFO L899 garLoopResultBuilder]: For program point L165(lines 165 1331) no Hoare annotation was computed. [2023-12-21 13:57:19,349 INFO L899 garLoopResultBuilder]: For program point L859(lines 859 890) no Hoare annotation was computed. [2023-12-21 13:57:19,349 INFO L899 garLoopResultBuilder]: For program point L826(lines 826 1068) no Hoare annotation was computed. [2023-12-21 13:57:19,349 INFO L899 garLoopResultBuilder]: For program point L595(lines 595 651) no Hoare annotation was computed. [2023-12-21 13:57:19,350 INFO L899 garLoopResultBuilder]: For program point L562(lines 550 570) no Hoare annotation was computed. [2023-12-21 13:57:19,350 INFO L899 garLoopResultBuilder]: For program point L1454(lines 1454 1491) no Hoare annotation was computed. [2023-12-21 13:57:19,350 INFO L899 garLoopResultBuilder]: For program point L1355(lines 1355 1651) no Hoare annotation was computed. [2023-12-21 13:57:19,350 INFO L899 garLoopResultBuilder]: For program point L199(lines 199 1106) no Hoare annotation was computed. [2023-12-21 13:57:19,350 INFO L899 garLoopResultBuilder]: For program point L100(lines 100 1726) no Hoare annotation was computed. [2023-12-21 13:57:19,350 INFO L899 garLoopResultBuilder]: For program point $Ultimate##118(lines 374 412) no Hoare annotation was computed. [2023-12-21 13:57:19,350 INFO L899 garLoopResultBuilder]: For program point L959(lines 959 1061) no Hoare annotation was computed. [2023-12-21 13:57:19,350 INFO L899 garLoopResultBuilder]: For program point L926(lines 926 934) no Hoare annotation was computed. [2023-12-21 13:57:19,350 INFO L899 garLoopResultBuilder]: For program point L695(lines 695 733) no Hoare annotation was computed. [2023-12-21 13:57:19,350 INFO L899 garLoopResultBuilder]: For program point L629(lines 629 637) no Hoare annotation was computed. [2023-12-21 13:57:19,350 INFO L899 garLoopResultBuilder]: For program point L1389(lines 1389 1426) no Hoare annotation was computed. [2023-12-21 13:57:19,350 INFO L899 garLoopResultBuilder]: For program point L1290(lines 1290 1320) no Hoare annotation was computed. [2023-12-21 13:57:19,350 INFO L899 garLoopResultBuilder]: For program point L167(lines 167 1185) no Hoare annotation was computed. [2023-12-21 13:57:19,353 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:57:19,355 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-21 13:57:19,358 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 01:57:19 BoogieIcfgContainer [2023-12-21 13:57:19,358 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-21 13:57:19,359 INFO L158 Benchmark]: Toolchain (without parser) took 741909.10ms. Allocated memory was 191.9MB in the beginning and 5.7GB in the end (delta: 5.5GB). Free memory was 153.4MB in the beginning and 2.0GB in the end (delta: -1.9GB). Peak memory consumption was 3.7GB. Max. memory is 8.0GB. [2023-12-21 13:57:19,359 INFO L158 Benchmark]: CDTParser took 0.59ms. Allocated memory is still 191.9MB. Free memory is still 150.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-21 13:57:19,359 INFO L158 Benchmark]: CACSL2BoogieTranslator took 562.08ms. Allocated memory is still 191.9MB. Free memory was 153.4MB in the beginning and 122.0MB in the end (delta: 31.4MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. [2023-12-21 13:57:19,359 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.41ms. Allocated memory is still 191.9MB. Free memory was 122.0MB in the beginning and 117.1MB in the end (delta: 4.9MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-21 13:57:19,359 INFO L158 Benchmark]: Boogie Preprocessor took 84.31ms. Allocated memory is still 191.9MB. Free memory was 117.1MB in the beginning and 111.9MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-21 13:57:19,359 INFO L158 Benchmark]: RCFGBuilder took 993.97ms. Allocated memory is still 191.9MB. Free memory was 111.9MB in the beginning and 119.4MB in the end (delta: -7.5MB). Peak memory consumption was 22.2MB. Max. memory is 8.0GB. [2023-12-21 13:57:19,359 INFO L158 Benchmark]: TraceAbstraction took 740184.33ms. Allocated memory was 191.9MB in the beginning and 5.7GB in the end (delta: 5.5GB). Free memory was 118.3MB in the beginning and 2.0GB in the end (delta: -1.9GB). Peak memory consumption was 3.6GB. Max. memory is 8.0GB. [2023-12-21 13:57:19,360 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.59ms. Allocated memory is still 191.9MB. Free memory is still 150.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 562.08ms. Allocated memory is still 191.9MB. Free memory was 153.4MB in the beginning and 122.0MB in the end (delta: 31.4MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 78.41ms. Allocated memory is still 191.9MB. Free memory was 122.0MB in the beginning and 117.1MB in the end (delta: 4.9MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 84.31ms. Allocated memory is still 191.9MB. Free memory was 117.1MB in the beginning and 111.9MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 993.97ms. Allocated memory is still 191.9MB. Free memory was 111.9MB in the beginning and 119.4MB in the end (delta: -7.5MB). Peak memory consumption was 22.2MB. Max. memory is 8.0GB. * TraceAbstraction took 740184.33ms. Allocated memory was 191.9MB in the beginning and 5.7GB in the end (delta: 5.5GB). Free memory was 118.3MB in the beginning and 2.0GB in the end (delta: -1.9GB). Peak memory consumption was 3.6GB. 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 - PositiveResult [Line: 390]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 631]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 719]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 766]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 881]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 928]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 1002]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 204 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 740.1s, OverallIterations: 77, TraceHistogramMax: 10, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 555.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 157519 SdHoareTripleChecker+Valid, 98.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 157519 mSDsluCounter, 310692 SdHoareTripleChecker+Invalid, 86.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 292357 mSDsCounter, 2534 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 160683 IncrementalHoareTripleChecker+Invalid, 163217 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2534 mSolverCounterUnsat, 18335 mSDtfsCounter, 160683 mSolverCounterSat, 1.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15668 GetRequests, 8867 SyntacticMatches, 25 SemanticMatches, 6776 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 728114 ImplicationChecksByTransitivity, 490.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=104096occurred in iteration=43, InterpolantAutomatonStates: 5237, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 16.4s AutomataMinimizationTime, 77 MinimizatonAttempts, 1148263 StatesRemovedByMinimization, 71 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FormulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 0 FormulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 1.1s SsaConstructionTime, 3.2s SatisfiabilityAnalysisTime, 153.1s InterpolantComputationTime, 12961 NumberOfCodeBlocks, 12961 NumberOfCodeBlocksAsserted, 112 NumberOfCheckSat, 17752 ConstructedInterpolants, 0 QuantifiedInterpolants, 337208 SizeOfPredicates, 434 NumberOfNonLiveVariables, 18779 ConjunctsInSsa, 1176 ConjunctsInUnsatCore, 147 InterpolantComputations, 42 PerfectInterpolantSequences, 5321/11447 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 - AllSpecificationsHoldResult: All specifications hold 7 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-12-21 13:57:19,459 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...