/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.3.1.ufo.BOUNDED-6.pals.c.v+sep-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-20 03:07:41,078 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-20 03:07:41,136 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-20 03:07:41,140 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-20 03:07:41,141 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-20 03:07:41,171 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-20 03:07:41,172 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-20 03:07:41,172 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-20 03:07:41,173 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-20 03:07:41,177 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-20 03:07:41,177 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-20 03:07:41,177 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-20 03:07:41,177 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-20 03:07:41,178 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-20 03:07:41,178 INFO L153 SettingsManager]: * Use SBE=true [2023-12-20 03:07:41,178 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-20 03:07:41,178 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-20 03:07:41,179 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-20 03:07:41,179 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-20 03:07:41,179 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-20 03:07:41,179 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-20 03:07:41,179 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-20 03:07:41,180 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-20 03:07:41,180 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-20 03:07:41,180 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-20 03:07:41,180 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-20 03:07:41,181 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-20 03:07:41,181 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-20 03:07:41,181 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-20 03:07:41,182 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-20 03:07:41,182 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-20 03:07:41,183 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-20 03:07:41,183 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 03:07:41,183 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-20 03:07:41,183 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-20 03:07:41,183 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-20 03:07:41,183 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-20 03:07:41,184 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-20 03:07:41,184 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-20 03:07:41,184 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-20 03:07:41,184 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-20 03:07:41,184 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-20 03:07:41,185 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-20 03:07:41,185 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-20 03:07:41,431 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-20 03:07:41,454 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-20 03:07:41,457 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-20 03:07:41,458 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-20 03:07:41,460 INFO L274 PluginConnector]: CDTParser initialized [2023-12-20 03:07:41,462 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.3.1.ufo.BOUNDED-6.pals.c.v+sep-reducer.c [2023-12-20 03:07:42,732 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-20 03:07:43,021 INFO L384 CDTParser]: Found 1 translation units. [2023-12-20 03:07:43,022 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.3.1.ufo.BOUNDED-6.pals.c.v+sep-reducer.c [2023-12-20 03:07:43,044 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c38d8a364/4e21fda94311495baa363e50926af397/FLAG06fb6f6b2 [2023-12-20 03:07:43,059 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c38d8a364/4e21fda94311495baa363e50926af397 [2023-12-20 03:07:43,061 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-20 03:07:43,062 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-20 03:07:43,065 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-20 03:07:43,065 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-20 03:07:43,069 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-20 03:07:43,069 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 03:07:43" (1/1) ... [2023-12-20 03:07:43,070 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e98e6d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:07:43, skipping insertion in model container [2023-12-20 03:07:43,071 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 03:07:43" (1/1) ... [2023-12-20 03:07:43,144 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-20 03:07:43,395 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.3.1.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[6199,6212] [2023-12-20 03:07:43,416 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.3.1.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[9205,9218] [2023-12-20 03:07:43,444 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.3.1.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[12265,12278] [2023-12-20 03:07:43,465 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.3.1.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[15172,15185] [2023-12-20 03:07:43,481 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.3.1.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[18387,18400] [2023-12-20 03:07:43,491 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.3.1.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[21499,21512] [2023-12-20 03:07:43,501 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.3.1.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[24550,24563] [2023-12-20 03:07:43,560 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 03:07:43,576 INFO L202 MainTranslator]: Completed pre-run [2023-12-20 03:07:43,607 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.3.1.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[6199,6212] [2023-12-20 03:07:43,615 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.3.1.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[9205,9218] [2023-12-20 03:07:43,627 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.3.1.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[12265,12278] [2023-12-20 03:07:43,635 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.3.1.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[15172,15185] [2023-12-20 03:07:43,651 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.3.1.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[18387,18400] [2023-12-20 03:07:43,659 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.3.1.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[21499,21512] [2023-12-20 03:07:43,665 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.3.1.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[24550,24563] [2023-12-20 03:07:43,681 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 03:07:43,699 INFO L206 MainTranslator]: Completed translation [2023-12-20 03:07:43,699 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:07:43 WrapperNode [2023-12-20 03:07:43,700 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-20 03:07:43,701 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-20 03:07:43,701 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-20 03:07:43,701 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-20 03:07:43,727 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:07:43" (1/1) ... [2023-12-20 03:07:43,740 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:07:43" (1/1) ... [2023-12-20 03:07:43,802 INFO L138 Inliner]: procedures = 22, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1432 [2023-12-20 03:07:43,802 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-20 03:07:43,803 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-20 03:07:43,803 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-20 03:07:43,803 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-20 03:07:43,813 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:07:43" (1/1) ... [2023-12-20 03:07:43,813 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:07:43" (1/1) ... [2023-12-20 03:07:43,819 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:07:43" (1/1) ... [2023-12-20 03:07:43,852 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-20 03:07:43,852 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:07:43" (1/1) ... [2023-12-20 03:07:43,853 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:07:43" (1/1) ... [2023-12-20 03:07:43,872 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:07:43" (1/1) ... [2023-12-20 03:07:43,878 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:07:43" (1/1) ... [2023-12-20 03:07:43,898 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:07:43" (1/1) ... [2023-12-20 03:07:43,902 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:07:43" (1/1) ... [2023-12-20 03:07:43,908 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-20 03:07:43,909 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-20 03:07:43,909 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-20 03:07:43,910 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-20 03:07:43,922 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:07:43" (1/1) ... [2023-12-20 03:07:43,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 03:07:43,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:07:43,957 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-20 03:07:43,980 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-20 03:07:43,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-20 03:07:43,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-20 03:07:43,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-20 03:07:43,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-20 03:07:44,153 INFO L241 CfgBuilder]: Building ICFG [2023-12-20 03:07:44,155 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-20 03:07:44,995 INFO L282 CfgBuilder]: Performing block encoding [2023-12-20 03:07:45,047 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-20 03:07:45,047 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-20 03:07:45,048 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 03:07:45 BoogieIcfgContainer [2023-12-20 03:07:45,048 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-20 03:07:45,050 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-20 03:07:45,050 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-20 03:07:45,052 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-20 03:07:45,053 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.12 03:07:43" (1/3) ... [2023-12-20 03:07:45,053 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1944ecc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 03:07:45, skipping insertion in model container [2023-12-20 03:07:45,053 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:07:43" (2/3) ... [2023-12-20 03:07:45,054 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1944ecc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 03:07:45, skipping insertion in model container [2023-12-20 03:07:45,054 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 03:07:45" (3/3) ... [2023-12-20 03:07:45,055 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.3.1.ufo.BOUNDED-6.pals.c.v+sep-reducer.c [2023-12-20 03:07:45,067 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-20 03:07:45,067 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2023-12-20 03:07:45,112 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-20 03:07:45,117 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;@1c521fd9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-20 03:07:45,117 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-12-20 03:07:45,122 INFO L276 IsEmpty]: Start isEmpty. Operand has 277 states, 269 states have (on average 1.7992565055762082) internal successors, (484), 276 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:07:45,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-12-20 03:07:45,132 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:07:45,133 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:07:45,133 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:07:45,137 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:07:45,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1191779176, now seen corresponding path program 1 times [2023-12-20 03:07:45,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:07:45,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311879514] [2023-12-20 03:07:45,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:07:45,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:07:45,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:07:45,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:07:45,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:07:45,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311879514] [2023-12-20 03:07:45,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311879514] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:07:45,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:07:45,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 03:07:45,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619943153] [2023-12-20 03:07:45,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:07:45,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 03:07:45,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:07:45,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 03:07:45,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 03:07:45,625 INFO L87 Difference]: Start difference. First operand has 277 states, 269 states have (on average 1.7992565055762082) internal successors, (484), 276 states have internal predecessors, (484), 0 states have call successors, (0), 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 9.4) 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) [2023-12-20 03:07:45,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:07:45,876 INFO L93 Difference]: Finished difference Result 387 states and 655 transitions. [2023-12-20 03:07:45,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 03:07:45,880 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 [2023-12-20 03:07:45,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:07:45,894 INFO L225 Difference]: With dead ends: 387 [2023-12-20 03:07:45,894 INFO L226 Difference]: Without dead ends: 243 [2023-12-20 03:07:45,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-20 03:07:45,901 INFO L413 NwaCegarLoop]: 246 mSDtfsCounter, 1149 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1149 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 03:07:45,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1149 Valid, 286 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 03:07:45,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2023-12-20 03:07:45,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 243. [2023-12-20 03:07:45,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 236 states have (on average 1.2669491525423728) internal successors, (299), 242 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:07:45,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 299 transitions. [2023-12-20 03:07:45,946 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 299 transitions. Word has length 47 [2023-12-20 03:07:45,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:07:45,947 INFO L495 AbstractCegarLoop]: Abstraction has 243 states and 299 transitions. [2023-12-20 03:07:45,947 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) [2023-12-20 03:07:45,947 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 299 transitions. [2023-12-20 03:07:45,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-12-20 03:07:45,949 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:07:45,949 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:07:45,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-20 03:07:45,950 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:07:45,950 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:07:45,950 INFO L85 PathProgramCache]: Analyzing trace with hash 520818139, now seen corresponding path program 1 times [2023-12-20 03:07:45,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:07:45,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797997760] [2023-12-20 03:07:45,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:07:45,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:07:46,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:07:46,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:07:46,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:07:46,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797997760] [2023-12-20 03:07:46,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797997760] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:07:46,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:07:46,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 03:07:46,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720428891] [2023-12-20 03:07:46,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:07:46,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 03:07:46,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:07:46,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 03:07:46,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 03:07:46,192 INFO L87 Difference]: Start difference. First operand 243 states and 299 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) [2023-12-20 03:07:46,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:07:46,332 INFO L93 Difference]: Finished difference Result 311 states and 386 transitions. [2023-12-20 03:07:46,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 03:07:46,332 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 [2023-12-20 03:07:46,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:07:46,335 INFO L225 Difference]: With dead ends: 311 [2023-12-20 03:07:46,335 INFO L226 Difference]: Without dead ends: 185 [2023-12-20 03:07:46,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-20 03:07:46,340 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 638 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 638 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 03:07:46,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [638 Valid, 142 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 03:07:46,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2023-12-20 03:07:46,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2023-12-20 03:07:46,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 178 states have (on average 1.2696629213483146) internal successors, (226), 184 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:07:46,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 226 transitions. [2023-12-20 03:07:46,357 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 226 transitions. Word has length 47 [2023-12-20 03:07:46,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:07:46,358 INFO L495 AbstractCegarLoop]: Abstraction has 185 states and 226 transitions. [2023-12-20 03:07:46,358 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) [2023-12-20 03:07:46,358 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 226 transitions. [2023-12-20 03:07:46,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-12-20 03:07:46,359 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:07:46,360 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] [2023-12-20 03:07:46,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-20 03:07:46,360 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:07:46,361 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:07:46,361 INFO L85 PathProgramCache]: Analyzing trace with hash 45954227, now seen corresponding path program 1 times [2023-12-20 03:07:46,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:07:46,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357645738] [2023-12-20 03:07:46,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:07:46,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:07:46,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:07:46,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:07:46,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:07:46,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357645738] [2023-12-20 03:07:46,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357645738] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:07:46,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:07:46,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 03:07:46,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351119821] [2023-12-20 03:07:46,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:07:46,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 03:07:46,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:07:46,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 03:07:46,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 03:07:46,515 INFO L87 Difference]: Start difference. First operand 185 states and 226 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) [2023-12-20 03:07:46,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:07:46,682 INFO L93 Difference]: Finished difference Result 353 states and 446 transitions. [2023-12-20 03:07:46,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 03:07:46,683 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 [2023-12-20 03:07:46,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:07:46,684 INFO L225 Difference]: With dead ends: 353 [2023-12-20 03:07:46,689 INFO L226 Difference]: Without dead ends: 250 [2023-12-20 03:07:46,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-20 03:07:46,692 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 794 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 794 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 03:07:46,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [794 Valid, 197 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 03:07:46,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2023-12-20 03:07:46,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 225. [2023-12-20 03:07:46,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 218 states have (on average 1.3256880733944953) internal successors, (289), 224 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) [2023-12-20 03:07:46,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 289 transitions. [2023-12-20 03:07:46,708 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 289 transitions. Word has length 47 [2023-12-20 03:07:46,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:07:46,708 INFO L495 AbstractCegarLoop]: Abstraction has 225 states and 289 transitions. [2023-12-20 03:07:46,708 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) [2023-12-20 03:07:46,708 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 289 transitions. [2023-12-20 03:07:46,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-12-20 03:07:46,709 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:07:46,710 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] [2023-12-20 03:07:46,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-20 03:07:46,710 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:07:46,711 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:07:46,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1209610819, now seen corresponding path program 1 times [2023-12-20 03:07:46,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:07:46,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416675179] [2023-12-20 03:07:46,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:07:46,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:07:46,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:07:47,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:07:47,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:07:47,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416675179] [2023-12-20 03:07:47,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416675179] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:07:47,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:07:47,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 03:07:47,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340049962] [2023-12-20 03:07:47,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:07:47,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 03:07:47,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:07:47,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 03:07:47,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 03:07:47,081 INFO L87 Difference]: Start difference. First operand 225 states and 289 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:07:47,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:07:47,351 INFO L93 Difference]: Finished difference Result 478 states and 629 transitions. [2023-12-20 03:07:47,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-20 03:07:47,352 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 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 49 [2023-12-20 03:07:47,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:07:47,353 INFO L225 Difference]: With dead ends: 478 [2023-12-20 03:07:47,353 INFO L226 Difference]: Without dead ends: 350 [2023-12-20 03:07:47,356 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2023-12-20 03:07:47,360 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 799 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 799 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 03:07:47,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [799 Valid, 438 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 03:07:47,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2023-12-20 03:07:47,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 225. [2023-12-20 03:07:47,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 218 states have (on average 1.3211009174311927) internal successors, (288), 224 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:07:47,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 288 transitions. [2023-12-20 03:07:47,374 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 288 transitions. Word has length 49 [2023-12-20 03:07:47,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:07:47,375 INFO L495 AbstractCegarLoop]: Abstraction has 225 states and 288 transitions. [2023-12-20 03:07:47,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:07:47,375 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 288 transitions. [2023-12-20 03:07:47,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-12-20 03:07:47,380 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:07:47,380 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] [2023-12-20 03:07:47,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-20 03:07:47,380 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:07:47,380 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:07:47,381 INFO L85 PathProgramCache]: Analyzing trace with hash 754421757, now seen corresponding path program 1 times [2023-12-20 03:07:47,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:07:47,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429138513] [2023-12-20 03:07:47,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:07:47,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:07:47,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:07:47,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:07:47,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:07:47,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429138513] [2023-12-20 03:07:47,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429138513] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:07:47,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:07:47,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:07:47,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479991744] [2023-12-20 03:07:47,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:07:47,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:07:47,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:07:47,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:07:47,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:07:47,639 INFO L87 Difference]: Start difference. First operand 225 states and 288 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:07:48,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:07:48,029 INFO L93 Difference]: Finished difference Result 547 states and 742 transitions. [2023-12-20 03:07:48,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 03:07:48,030 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 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 49 [2023-12-20 03:07:48,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:07:48,032 INFO L225 Difference]: With dead ends: 547 [2023-12-20 03:07:48,032 INFO L226 Difference]: Without dead ends: 541 [2023-12-20 03:07:48,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2023-12-20 03:07:48,033 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 563 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 563 SdHoareTripleChecker+Valid, 752 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 03:07:48,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [563 Valid, 752 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 03:07:48,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2023-12-20 03:07:48,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 225. [2023-12-20 03:07:48,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 218 states have (on average 1.31651376146789) internal successors, (287), 224 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:07:48,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 287 transitions. [2023-12-20 03:07:48,041 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 287 transitions. Word has length 49 [2023-12-20 03:07:48,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:07:48,042 INFO L495 AbstractCegarLoop]: Abstraction has 225 states and 287 transitions. [2023-12-20 03:07:48,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:07:48,042 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 287 transitions. [2023-12-20 03:07:48,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-12-20 03:07:48,042 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:07:48,042 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] [2023-12-20 03:07:48,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-20 03:07:48,043 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:07:48,043 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:07:48,043 INFO L85 PathProgramCache]: Analyzing trace with hash -175435075, now seen corresponding path program 1 times [2023-12-20 03:07:48,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:07:48,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047688441] [2023-12-20 03:07:48,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:07:48,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:07:48,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:07:48,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:07:48,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:07:48,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047688441] [2023-12-20 03:07:48,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047688441] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:07:48,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:07:48,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:07:48,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546270780] [2023-12-20 03:07:48,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:07:48,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:07:48,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:07:48,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:07:48,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:07:48,254 INFO L87 Difference]: Start difference. First operand 225 states and 287 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:07:48,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:07:48,646 INFO L93 Difference]: Finished difference Result 462 states and 630 transitions. [2023-12-20 03:07:48,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 03:07:48,648 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 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 49 [2023-12-20 03:07:48,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:07:48,649 INFO L225 Difference]: With dead ends: 462 [2023-12-20 03:07:48,649 INFO L226 Difference]: Without dead ends: 359 [2023-12-20 03:07:48,650 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 [2023-12-20 03:07:48,650 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 600 mSDsluCounter, 530 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 600 SdHoareTripleChecker+Valid, 662 SdHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 03:07:48,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [600 Valid, 662 Invalid, 441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 03:07:48,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2023-12-20 03:07:48,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 225. [2023-12-20 03:07:48,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 218 states have (on average 1.311926605504587) internal successors, (286), 224 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:07:48,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 286 transitions. [2023-12-20 03:07:48,657 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 286 transitions. Word has length 49 [2023-12-20 03:07:48,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:07:48,657 INFO L495 AbstractCegarLoop]: Abstraction has 225 states and 286 transitions. [2023-12-20 03:07:48,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:07:48,657 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 286 transitions. [2023-12-20 03:07:48,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-12-20 03:07:48,658 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:07:48,658 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] [2023-12-20 03:07:48,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-20 03:07:48,658 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:07:48,659 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:07:48,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1893856322, now seen corresponding path program 1 times [2023-12-20 03:07:48,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:07:48,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769832453] [2023-12-20 03:07:48,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:07:48,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:07:48,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:07:49,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:07:49,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:07:49,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769832453] [2023-12-20 03:07:49,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769832453] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:07:49,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:07:49,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-20 03:07:49,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072924060] [2023-12-20 03:07:49,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:07:49,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-20 03:07:49,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:07:49,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-20 03:07:49,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-20 03:07:49,231 INFO L87 Difference]: Start difference. First operand 225 states and 286 transitions. Second operand has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 11 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) [2023-12-20 03:07:49,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:07:49,790 INFO L93 Difference]: Finished difference Result 583 states and 812 transitions. [2023-12-20 03:07:49,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 03:07:49,790 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 11 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 [2023-12-20 03:07:49,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:07:49,793 INFO L225 Difference]: With dead ends: 583 [2023-12-20 03:07:49,793 INFO L226 Difference]: Without dead ends: 487 [2023-12-20 03:07:49,793 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2023-12-20 03:07:49,794 INFO L413 NwaCegarLoop]: 224 mSDtfsCounter, 1111 mSDsluCounter, 1375 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1111 SdHoareTripleChecker+Valid, 1599 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 03:07:49,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1111 Valid, 1599 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 03:07:49,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2023-12-20 03:07:49,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 213. [2023-12-20 03:07:49,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 207 states have (on average 1.3140096618357489) internal successors, (272), 212 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:07:49,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 272 transitions. [2023-12-20 03:07:49,801 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 272 transitions. Word has length 50 [2023-12-20 03:07:49,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:07:49,802 INFO L495 AbstractCegarLoop]: Abstraction has 213 states and 272 transitions. [2023-12-20 03:07:49,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 11 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) [2023-12-20 03:07:49,802 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 272 transitions. [2023-12-20 03:07:49,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-20 03:07:49,802 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:07:49,803 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] [2023-12-20 03:07:49,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-20 03:07:49,803 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:07:49,803 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:07:49,803 INFO L85 PathProgramCache]: Analyzing trace with hash 883237538, now seen corresponding path program 1 times [2023-12-20 03:07:49,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:07:49,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259817063] [2023-12-20 03:07:49,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:07:49,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:07:49,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:07:50,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:07:50,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:07:50,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259817063] [2023-12-20 03:07:50,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259817063] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:07:50,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:07:50,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-20 03:07:50,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403301552] [2023-12-20 03:07:50,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:07:50,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-20 03:07:50,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:07:50,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-20 03:07:50,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-20 03:07:50,294 INFO L87 Difference]: Start difference. First operand 213 states and 272 transitions. Second operand has 12 states, 12 states have (on average 4.25) internal successors, (51), 11 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) [2023-12-20 03:07:50,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:07:50,730 INFO L93 Difference]: Finished difference Result 460 states and 628 transitions. [2023-12-20 03:07:50,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-20 03:07:50,731 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 11 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 [2023-12-20 03:07:50,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:07:50,733 INFO L225 Difference]: With dead ends: 460 [2023-12-20 03:07:50,733 INFO L226 Difference]: Without dead ends: 443 [2023-12-20 03:07:50,733 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=99, Invalid=321, Unknown=0, NotChecked=0, Total=420 [2023-12-20 03:07:50,734 INFO L413 NwaCegarLoop]: 262 mSDtfsCounter, 995 mSDsluCounter, 1170 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 995 SdHoareTripleChecker+Valid, 1432 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 03:07:50,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [995 Valid, 1432 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 03:07:50,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2023-12-20 03:07:50,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 196. [2023-12-20 03:07:50,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 192 states have (on average 1.3125) internal successors, (252), 195 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:07:50,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 252 transitions. [2023-12-20 03:07:50,741 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 252 transitions. Word has length 51 [2023-12-20 03:07:50,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:07:50,741 INFO L495 AbstractCegarLoop]: Abstraction has 196 states and 252 transitions. [2023-12-20 03:07:50,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 11 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) [2023-12-20 03:07:50,742 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 252 transitions. [2023-12-20 03:07:50,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-20 03:07:50,742 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:07:50,742 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] [2023-12-20 03:07:50,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-20 03:07:50,742 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:07:50,743 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:07:50,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1387229666, now seen corresponding path program 1 times [2023-12-20 03:07:50,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:07:50,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243283232] [2023-12-20 03:07:50,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:07:50,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:07:50,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:07:51,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:07:51,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:07:51,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243283232] [2023-12-20 03:07:51,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243283232] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:07:51,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:07:51,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-20 03:07:51,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509521539] [2023-12-20 03:07:51,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:07:51,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-20 03:07:51,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:07:51,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-20 03:07:51,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-12-20 03:07:51,162 INFO L87 Difference]: Start difference. First operand 196 states and 252 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) [2023-12-20 03:07:51,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:07:51,583 INFO L93 Difference]: Finished difference Result 554 states and 777 transitions. [2023-12-20 03:07:51,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:07:51,583 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 [2023-12-20 03:07:51,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:07:51,585 INFO L225 Difference]: With dead ends: 554 [2023-12-20 03:07:51,585 INFO L226 Difference]: Without dead ends: 446 [2023-12-20 03:07:51,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=134, Invalid=328, Unknown=0, NotChecked=0, Total=462 [2023-12-20 03:07:51,586 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 998 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 998 SdHoareTripleChecker+Valid, 761 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 03:07:51,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [998 Valid, 761 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 03:07:51,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2023-12-20 03:07:51,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 172. [2023-12-20 03:07:51,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 170 states have (on average 1.3176470588235294) internal successors, (224), 171 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) [2023-12-20 03:07:51,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 224 transitions. [2023-12-20 03:07:51,593 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 224 transitions. Word has length 51 [2023-12-20 03:07:51,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:07:51,593 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 224 transitions. [2023-12-20 03:07:51,594 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) [2023-12-20 03:07:51,594 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 224 transitions. [2023-12-20 03:07:51,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-20 03:07:51,594 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:07:51,594 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] [2023-12-20 03:07:51,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-20 03:07:51,595 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:07:51,595 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:07:51,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1523929374, now seen corresponding path program 1 times [2023-12-20 03:07:51,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:07:51,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529225342] [2023-12-20 03:07:51,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:07:51,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:07:51,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:07:51,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:07:51,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:07:51,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529225342] [2023-12-20 03:07:51,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529225342] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:07:51,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:07:51,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-20 03:07:51,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648913490] [2023-12-20 03:07:51,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:07:51,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-20 03:07:51,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:07:51,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-20 03:07:51,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-12-20 03:07:51,890 INFO L87 Difference]: Start difference. First operand 172 states and 224 transitions. Second operand has 10 states, 10 states have (on average 5.3) internal successors, (53), 9 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) [2023-12-20 03:07:52,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:07:52,204 INFO L93 Difference]: Finished difference Result 327 states and 440 transitions. [2023-12-20 03:07:52,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-20 03:07:52,204 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 9 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 [2023-12-20 03:07:52,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:07:52,205 INFO L225 Difference]: With dead ends: 327 [2023-12-20 03:07:52,205 INFO L226 Difference]: Without dead ends: 209 [2023-12-20 03:07:52,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=101, Invalid=279, Unknown=0, NotChecked=0, Total=380 [2023-12-20 03:07:52,206 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 477 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 477 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 03:07:52,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [477 Valid, 424 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 03:07:52,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2023-12-20 03:07:52,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 172. [2023-12-20 03:07:52,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 170 states have (on average 1.3058823529411765) internal successors, (222), 171 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:07:52,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 222 transitions. [2023-12-20 03:07:52,211 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 222 transitions. Word has length 53 [2023-12-20 03:07:52,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:07:52,211 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 222 transitions. [2023-12-20 03:07:52,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 9 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) [2023-12-20 03:07:52,211 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 222 transitions. [2023-12-20 03:07:52,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-20 03:07:52,212 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:07:52,213 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] [2023-12-20 03:07:52,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-20 03:07:52,213 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:07:52,214 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:07:52,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1353414343, now seen corresponding path program 1 times [2023-12-20 03:07:52,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:07:52,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436932556] [2023-12-20 03:07:52,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:07:52,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:07:52,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:07:52,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:07:52,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:07:52,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436932556] [2023-12-20 03:07:52,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436932556] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:07:52,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:07:52,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-12-20 03:07:52,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268971250] [2023-12-20 03:07:52,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:07:52,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-20 03:07:52,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:07:52,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-20 03:07:52,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2023-12-20 03:07:52,934 INFO L87 Difference]: Start difference. First operand 172 states and 222 transitions. Second operand has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 17 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:07:53,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:07:53,846 INFO L93 Difference]: Finished difference Result 644 states and 906 transitions. [2023-12-20 03:07:53,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-20 03:07:53,846 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 17 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2023-12-20 03:07:53,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:07:53,849 INFO L225 Difference]: With dead ends: 644 [2023-12-20 03:07:53,849 INFO L226 Difference]: Without dead ends: 638 [2023-12-20 03:07:53,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=169, Invalid=823, Unknown=0, NotChecked=0, Total=992 [2023-12-20 03:07:53,850 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 831 mSDsluCounter, 1723 mSDsCounter, 0 mSdLazyCounter, 809 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 831 SdHoareTripleChecker+Valid, 1881 SdHoareTripleChecker+Invalid, 809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 809 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-20 03:07:53,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [831 Valid, 1881 Invalid, 809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 809 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-20 03:07:53,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2023-12-20 03:07:53,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 179. [2023-12-20 03:07:53,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 177 states have (on average 1.305084745762712) internal successors, (231), 178 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:07:53,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 231 transitions. [2023-12-20 03:07:53,857 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 231 transitions. Word has length 55 [2023-12-20 03:07:53,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:07:53,857 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 231 transitions. [2023-12-20 03:07:53,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 17 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:07:53,858 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 231 transitions. [2023-12-20 03:07:53,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-20 03:07:53,858 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:07:53,858 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] [2023-12-20 03:07:53,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-20 03:07:53,858 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:07:53,859 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:07:53,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1713847366, now seen corresponding path program 1 times [2023-12-20 03:07:53,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:07:53,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246528372] [2023-12-20 03:07:53,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:07:53,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:07:53,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:07:54,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:07:54,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:07:54,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246528372] [2023-12-20 03:07:54,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246528372] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:07:54,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:07:54,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-20 03:07:54,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958426708] [2023-12-20 03:07:54,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:07:54,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-20 03:07:54,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:07:54,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-20 03:07:54,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2023-12-20 03:07:54,976 INFO L87 Difference]: Start difference. First operand 179 states and 231 transitions. Second operand has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 18 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:07:56,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:07:56,644 INFO L93 Difference]: Finished difference Result 643 states and 904 transitions. [2023-12-20 03:07:56,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-20 03:07:56,645 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 18 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2023-12-20 03:07:56,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:07:56,647 INFO L225 Difference]: With dead ends: 643 [2023-12-20 03:07:56,647 INFO L226 Difference]: Without dead ends: 637 [2023-12-20 03:07:56,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=204, Invalid=986, Unknown=0, NotChecked=0, Total=1190 [2023-12-20 03:07:56,649 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 637 mSDsluCounter, 2549 mSDsCounter, 0 mSdLazyCounter, 1220 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 637 SdHoareTripleChecker+Valid, 2759 SdHoareTripleChecker+Invalid, 1222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 03:07:56,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [637 Valid, 2759 Invalid, 1222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1220 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 03:07:56,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2023-12-20 03:07:56,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 172. [2023-12-20 03:07:56,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 170 states have (on average 1.3) internal successors, (221), 171 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:07:56,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 221 transitions. [2023-12-20 03:07:56,655 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 221 transitions. Word has length 56 [2023-12-20 03:07:56,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:07:56,655 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 221 transitions. [2023-12-20 03:07:56,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 18 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:07:56,655 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 221 transitions. [2023-12-20 03:07:56,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-20 03:07:56,656 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:07:56,656 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] [2023-12-20 03:07:56,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-20 03:07:56,656 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:07:56,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:07:56,657 INFO L85 PathProgramCache]: Analyzing trace with hash -576071502, now seen corresponding path program 1 times [2023-12-20 03:07:56,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:07:56,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669289353] [2023-12-20 03:07:56,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:07:56,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:07:56,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:07:57,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:07:57,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:07:57,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669289353] [2023-12-20 03:07:57,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669289353] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:07:57,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:07:57,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-20 03:07:57,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074270547] [2023-12-20 03:07:57,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:07:57,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-20 03:07:57,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:07:57,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-20 03:07:57,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2023-12-20 03:07:57,297 INFO L87 Difference]: Start difference. First operand 172 states and 221 transitions. Second operand has 15 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 14 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:07:58,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:07:58,840 INFO L93 Difference]: Finished difference Result 1192 states and 1703 transitions. [2023-12-20 03:07:58,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-20 03:07:58,840 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 14 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2023-12-20 03:07:58,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:07:58,844 INFO L225 Difference]: With dead ends: 1192 [2023-12-20 03:07:58,844 INFO L226 Difference]: Without dead ends: 1186 [2023-12-20 03:07:58,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=206, Invalid=786, Unknown=0, NotChecked=0, Total=992 [2023-12-20 03:07:58,845 INFO L413 NwaCegarLoop]: 404 mSDtfsCounter, 1609 mSDsluCounter, 3129 mSDsCounter, 0 mSdLazyCounter, 1223 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1609 SdHoareTripleChecker+Valid, 3533 SdHoareTripleChecker+Invalid, 1229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 03:07:58,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1609 Valid, 3533 Invalid, 1229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1223 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 03:07:58,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1186 states. [2023-12-20 03:07:58,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1186 to 179. [2023-12-20 03:07:58,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 177 states have (on average 1.2994350282485876) internal successors, (230), 178 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:07:58,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 230 transitions. [2023-12-20 03:07:58,854 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 230 transitions. Word has length 56 [2023-12-20 03:07:58,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:07:58,854 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 230 transitions. [2023-12-20 03:07:58,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 14 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:07:58,855 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 230 transitions. [2023-12-20 03:07:58,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-20 03:07:58,855 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:07:58,855 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] [2023-12-20 03:07:58,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-20 03:07:58,856 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:07:58,856 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:07:58,856 INFO L85 PathProgramCache]: Analyzing trace with hash 2029328315, now seen corresponding path program 1 times [2023-12-20 03:07:58,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:07:58,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537551205] [2023-12-20 03:07:58,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:07:58,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:07:58,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:07:59,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:07:59,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:07:59,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537551205] [2023-12-20 03:07:59,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537551205] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:07:59,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:07:59,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-12-20 03:07:59,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366926486] [2023-12-20 03:07:59,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:07:59,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-20 03:07:59,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:07:59,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-20 03:07:59,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2023-12-20 03:07:59,509 INFO L87 Difference]: Start difference. First operand 179 states and 230 transitions. Second operand has 18 states, 18 states have (on average 3.1666666666666665) internal successors, (57), 17 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:08:00,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:08:00,397 INFO L93 Difference]: Finished difference Result 373 states and 508 transitions. [2023-12-20 03:08:00,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-20 03:08:00,398 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.1666666666666665) internal successors, (57), 17 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2023-12-20 03:08:00,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:08:00,399 INFO L225 Difference]: With dead ends: 373 [2023-12-20 03:08:00,399 INFO L226 Difference]: Without dead ends: 367 [2023-12-20 03:08:00,400 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=148, Invalid=664, Unknown=0, NotChecked=0, Total=812 [2023-12-20 03:08:00,401 INFO L413 NwaCegarLoop]: 247 mSDtfsCounter, 291 mSDsluCounter, 2563 mSDsCounter, 0 mSdLazyCounter, 1088 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 2810 SdHoareTripleChecker+Invalid, 1091 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1088 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-20 03:08:00,401 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [291 Valid, 2810 Invalid, 1091 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1088 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-20 03:08:00,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2023-12-20 03:08:00,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 166. [2023-12-20 03:08:00,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 165 states have (on average 1.303030303030303) internal successors, (215), 165 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:08:00,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 215 transitions. [2023-12-20 03:08:00,407 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 215 transitions. Word has length 57 [2023-12-20 03:08:00,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:08:00,407 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 215 transitions. [2023-12-20 03:08:00,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.1666666666666665) internal successors, (57), 17 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:08:00,407 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 215 transitions. [2023-12-20 03:08:00,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-20 03:08:00,408 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:08:00,408 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:08:00,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-20 03:08:00,409 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:08:00,409 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:08:00,409 INFO L85 PathProgramCache]: Analyzing trace with hash 51586787, now seen corresponding path program 1 times [2023-12-20 03:08:00,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:08:00,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913173626] [2023-12-20 03:08:00,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:08:00,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:08:00,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:08:00,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:08:00,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:08:00,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913173626] [2023-12-20 03:08:00,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913173626] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:08:00,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:08:00,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-20 03:08:00,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106162707] [2023-12-20 03:08:00,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:08:00,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 03:08:00,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:08:00,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 03:08:00,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 03:08:00,484 INFO L87 Difference]: Start difference. First operand 166 states and 215 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 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) [2023-12-20 03:08:00,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:08:00,544 INFO L93 Difference]: Finished difference Result 670 states and 971 transitions. [2023-12-20 03:08:00,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-20 03:08:00,545 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 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 [2023-12-20 03:08:00,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:08:00,547 INFO L225 Difference]: With dead ends: 670 [2023-12-20 03:08:00,547 INFO L226 Difference]: Without dead ends: 586 [2023-12-20 03:08:00,549 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 [2023-12-20 03:08:00,549 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 534 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 461 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 [2023-12-20 03:08:00,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [534 Valid, 461 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:08:00,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2023-12-20 03:08:00,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 248. [2023-12-20 03:08:00,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 247 states have (on average 1.360323886639676) internal successors, (336), 247 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:08:00,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 336 transitions. [2023-12-20 03:08:00,557 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 336 transitions. Word has length 74 [2023-12-20 03:08:00,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:08:00,557 INFO L495 AbstractCegarLoop]: Abstraction has 248 states and 336 transitions. [2023-12-20 03:08:00,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 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) [2023-12-20 03:08:00,558 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 336 transitions. [2023-12-20 03:08:00,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-20 03:08:00,558 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:08:00,558 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] [2023-12-20 03:08:00,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-20 03:08:00,559 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:08:00,559 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:08:00,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1857068940, now seen corresponding path program 1 times [2023-12-20 03:08:00,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:08:00,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036864778] [2023-12-20 03:08:00,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:08:00,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:08:00,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:08:00,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:08:00,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:08:00,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036864778] [2023-12-20 03:08:00,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036864778] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:08:00,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:08:00,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-20 03:08:00,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729733395] [2023-12-20 03:08:00,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:08:00,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 03:08:00,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:08:00,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 03:08:00,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-20 03:08:00,647 INFO L87 Difference]: Start difference. First operand 248 states and 336 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) [2023-12-20 03:08:00,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:08:00,698 INFO L93 Difference]: Finished difference Result 830 states and 1199 transitions. [2023-12-20 03:08:00,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 03:08:00,699 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 [2023-12-20 03:08:00,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:08:00,701 INFO L225 Difference]: With dead ends: 830 [2023-12-20 03:08:00,701 INFO L226 Difference]: Without dead ends: 664 [2023-12-20 03:08:00,702 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 [2023-12-20 03:08:00,702 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 295 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 420 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 [2023-12-20 03:08:00,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 420 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:08:00,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2023-12-20 03:08:00,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 412. [2023-12-20 03:08:00,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 411 states have (on average 1.4111922141119222) internal successors, (580), 411 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:08:00,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 580 transitions. [2023-12-20 03:08:00,712 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 580 transitions. Word has length 76 [2023-12-20 03:08:00,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:08:00,713 INFO L495 AbstractCegarLoop]: Abstraction has 412 states and 580 transitions. [2023-12-20 03:08:00,713 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) [2023-12-20 03:08:00,713 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 580 transitions. [2023-12-20 03:08:00,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-20 03:08:00,714 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:08:00,714 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] [2023-12-20 03:08:00,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-20 03:08:00,714 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:08:00,714 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:08:00,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1771586931, now seen corresponding path program 1 times [2023-12-20 03:08:00,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:08:00,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002716257] [2023-12-20 03:08:00,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:08:00,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:08:00,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:08:00,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:08:00,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:08:00,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002716257] [2023-12-20 03:08:00,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002716257] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:08:00,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:08:00,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:08:00,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504384658] [2023-12-20 03:08:00,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:08:00,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:08:00,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:08:00,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:08:00,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:08:00,753 INFO L87 Difference]: Start difference. First operand 412 states and 580 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 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) [2023-12-20 03:08:00,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:08:00,772 INFO L93 Difference]: Finished difference Result 1020 states and 1470 transitions. [2023-12-20 03:08:00,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:08:00,772 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 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 [2023-12-20 03:08:00,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:08:00,774 INFO L225 Difference]: With dead ends: 1020 [2023-12-20 03:08:00,775 INFO L226 Difference]: Without dead ends: 690 [2023-12-20 03:08:00,775 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:08:00,776 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 51 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:08:00,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 288 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:08:00,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2023-12-20 03:08:00,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 688. [2023-12-20 03:08:00,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 688 states, 687 states have (on average 1.4002911208151383) internal successors, (962), 687 states have internal predecessors, (962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:08:00,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 962 transitions. [2023-12-20 03:08:00,792 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 962 transitions. Word has length 76 [2023-12-20 03:08:00,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:08:00,792 INFO L495 AbstractCegarLoop]: Abstraction has 688 states and 962 transitions. [2023-12-20 03:08:00,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 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) [2023-12-20 03:08:00,792 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 962 transitions. [2023-12-20 03:08:00,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-20 03:08:00,793 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:08:00,793 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:08:00,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-20 03:08:00,793 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:08:00,794 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:08:00,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1838080443, now seen corresponding path program 1 times [2023-12-20 03:08:00,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:08:00,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571677396] [2023-12-20 03:08:00,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:08:00,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:08:00,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:08:00,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:08:00,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:08:00,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571677396] [2023-12-20 03:08:00,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571677396] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:08:00,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:08:00,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:08:00,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46320974] [2023-12-20 03:08:00,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:08:00,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:08:00,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:08:00,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:08:00,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:08:00,839 INFO L87 Difference]: Start difference. First operand 688 states and 962 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 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) [2023-12-20 03:08:00,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:08:00,860 INFO L93 Difference]: Finished difference Result 1296 states and 1836 transitions. [2023-12-20 03:08:00,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:08:00,861 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 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 [2023-12-20 03:08:00,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:08:00,863 INFO L225 Difference]: With dead ends: 1296 [2023-12-20 03:08:00,863 INFO L226 Difference]: Without dead ends: 690 [2023-12-20 03:08:00,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:08:00,864 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 51 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:08:00,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 207 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:08:00,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2023-12-20 03:08:00,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 688. [2023-12-20 03:08:00,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 688 states, 687 states have (on average 1.3944687045123727) internal successors, (958), 687 states have internal predecessors, (958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:08:00,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 958 transitions. [2023-12-20 03:08:00,877 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 958 transitions. Word has length 76 [2023-12-20 03:08:00,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:08:00,877 INFO L495 AbstractCegarLoop]: Abstraction has 688 states and 958 transitions. [2023-12-20 03:08:00,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 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) [2023-12-20 03:08:00,877 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 958 transitions. [2023-12-20 03:08:00,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-20 03:08:00,879 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:08:00,879 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] [2023-12-20 03:08:00,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-20 03:08:00,879 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:08:00,881 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:08:00,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1823220340, now seen corresponding path program 1 times [2023-12-20 03:08:00,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:08:00,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549656394] [2023-12-20 03:08:00,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:08:00,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:08:00,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:08:00,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:08:00,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:08:00,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549656394] [2023-12-20 03:08:00,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549656394] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:08:00,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:08:00,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-20 03:08:00,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854421637] [2023-12-20 03:08:00,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:08:00,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 03:08:00,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:08:00,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 03:08:00,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-20 03:08:00,955 INFO L87 Difference]: Start difference. First operand 688 states and 958 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) [2023-12-20 03:08:01,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:08:01,010 INFO L93 Difference]: Finished difference Result 1754 states and 2486 transitions. [2023-12-20 03:08:01,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 03:08:01,011 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 [2023-12-20 03:08:01,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:08:01,015 INFO L225 Difference]: With dead ends: 1754 [2023-12-20 03:08:01,015 INFO L226 Difference]: Without dead ends: 1450 [2023-12-20 03:08:01,016 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 [2023-12-20 03:08:01,016 INFO L413 NwaCegarLoop]: 182 mSDtfsCounter, 288 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:08:01,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 473 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:08:01,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1450 states. [2023-12-20 03:08:01,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1450 to 1142. [2023-12-20 03:08:01,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1142 states, 1141 states have (on average 1.4075372480280455) internal successors, (1606), 1141 states have internal predecessors, (1606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:08:01,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1142 states to 1142 states and 1606 transitions. [2023-12-20 03:08:01,042 INFO L78 Accepts]: Start accepts. Automaton has 1142 states and 1606 transitions. Word has length 76 [2023-12-20 03:08:01,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:08:01,043 INFO L495 AbstractCegarLoop]: Abstraction has 1142 states and 1606 transitions. [2023-12-20 03:08:01,043 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) [2023-12-20 03:08:01,043 INFO L276 IsEmpty]: Start isEmpty. Operand 1142 states and 1606 transitions. [2023-12-20 03:08:01,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-20 03:08:01,045 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:08:01,045 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] [2023-12-20 03:08:01,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-20 03:08:01,045 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:08:01,046 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:08:01,046 INFO L85 PathProgramCache]: Analyzing trace with hash 405281676, now seen corresponding path program 1 times [2023-12-20 03:08:01,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:08:01,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631144683] [2023-12-20 03:08:01,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:08:01,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:08:01,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:08:01,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:08:01,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:08:01,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631144683] [2023-12-20 03:08:01,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631144683] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:08:01,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:08:01,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-20 03:08:01,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798736200] [2023-12-20 03:08:01,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:08:01,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 03:08:01,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:08:01,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 03:08:01,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-20 03:08:01,124 INFO L87 Difference]: Start difference. First operand 1142 states and 1606 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) [2023-12-20 03:08:01,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:08:01,172 INFO L93 Difference]: Finished difference Result 2056 states and 2918 transitions. [2023-12-20 03:08:01,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 03:08:01,172 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 [2023-12-20 03:08:01,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:08:01,177 INFO L225 Difference]: With dead ends: 2056 [2023-12-20 03:08:01,177 INFO L226 Difference]: Without dead ends: 1752 [2023-12-20 03:08:01,180 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 [2023-12-20 03:08:01,181 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 290 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:08:01,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 421 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:08:01,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1752 states. [2023-12-20 03:08:01,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1752 to 1444. [2023-12-20 03:08:01,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1444 states, 1443 states have (on average 1.4123354123354124) internal successors, (2038), 1443 states have internal predecessors, (2038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:08:01,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 2038 transitions. [2023-12-20 03:08:01,213 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 2038 transitions. Word has length 76 [2023-12-20 03:08:01,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:08:01,213 INFO L495 AbstractCegarLoop]: Abstraction has 1444 states and 2038 transitions. [2023-12-20 03:08:01,213 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) [2023-12-20 03:08:01,213 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 2038 transitions. [2023-12-20 03:08:01,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-20 03:08:01,214 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:08:01,214 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] [2023-12-20 03:08:01,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-20 03:08:01,215 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:08:01,215 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:08:01,215 INFO L85 PathProgramCache]: Analyzing trace with hash -838790076, now seen corresponding path program 1 times [2023-12-20 03:08:01,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:08:01,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687772704] [2023-12-20 03:08:01,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:08:01,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:08:01,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:08:01,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:08:01,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:08:01,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687772704] [2023-12-20 03:08:01,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687772704] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:08:01,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:08:01,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:08:01,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809031980] [2023-12-20 03:08:01,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:08:01,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:08:01,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:08:01,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:08:01,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:08:01,288 INFO L87 Difference]: Start difference. First operand 1444 states and 2038 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) [2023-12-20 03:08:01,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:08:01,308 INFO L93 Difference]: Finished difference Result 3682 states and 5214 transitions. [2023-12-20 03:08:01,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:08:01,309 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 [2023-12-20 03:08:01,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:08:01,316 INFO L225 Difference]: With dead ends: 3682 [2023-12-20 03:08:01,316 INFO L226 Difference]: Without dead ends: 2320 [2023-12-20 03:08:01,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:08:01,318 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 60 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:08:01,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 267 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:08:01,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2320 states. [2023-12-20 03:08:01,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2320 to 2174. [2023-12-20 03:08:01,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2174 states, 2173 states have (on average 1.3943856419696272) internal successors, (3030), 2173 states have internal predecessors, (3030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:08:01,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2174 states to 2174 states and 3030 transitions. [2023-12-20 03:08:01,361 INFO L78 Accepts]: Start accepts. Automaton has 2174 states and 3030 transitions. Word has length 77 [2023-12-20 03:08:01,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:08:01,361 INFO L495 AbstractCegarLoop]: Abstraction has 2174 states and 3030 transitions. [2023-12-20 03:08:01,361 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) [2023-12-20 03:08:01,361 INFO L276 IsEmpty]: Start isEmpty. Operand 2174 states and 3030 transitions. [2023-12-20 03:08:01,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-20 03:08:01,362 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:08:01,362 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:08:01,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-20 03:08:01,362 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)] === [2023-12-20 03:08:01,363 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:08:01,363 INFO L85 PathProgramCache]: Analyzing trace with hash -361763827, now seen corresponding path program 1 times [2023-12-20 03:08:01,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:08:01,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963662486] [2023-12-20 03:08:01,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:08:01,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:08:01,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:08:01,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:08:01,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:08:01,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963662486] [2023-12-20 03:08:01,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963662486] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:08:01,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:08:01,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:08:01,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484825837] [2023-12-20 03:08:01,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:08:01,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:08:01,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:08:01,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:08:01,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:08:01,402 INFO L87 Difference]: Start difference. First operand 2174 states and 3030 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:08:01,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:08:01,429 INFO L93 Difference]: Finished difference Result 4350 states and 6087 transitions. [2023-12-20 03:08:01,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:08:01,429 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2023-12-20 03:08:01,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:08:01,436 INFO L225 Difference]: With dead ends: 4350 [2023-12-20 03:08:01,437 INFO L226 Difference]: Without dead ends: 2258 [2023-12-20 03:08:01,440 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:08:01,441 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 68 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:08:01,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 202 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:08:01,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2258 states. [2023-12-20 03:08:01,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2258 to 2256. [2023-12-20 03:08:01,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2256 states, 2255 states have (on average 1.3778270509977828) internal successors, (3107), 2255 states have internal predecessors, (3107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:08:01,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2256 states to 2256 states and 3107 transitions. [2023-12-20 03:08:01,489 INFO L78 Accepts]: Start accepts. Automaton has 2256 states and 3107 transitions. Word has length 78 [2023-12-20 03:08:01,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:08:01,489 INFO L495 AbstractCegarLoop]: Abstraction has 2256 states and 3107 transitions. [2023-12-20 03:08:01,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:08:01,489 INFO L276 IsEmpty]: Start isEmpty. Operand 2256 states and 3107 transitions. [2023-12-20 03:08:01,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-20 03:08:01,490 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:08:01,490 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:08:01,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-20 03:08:01,490 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)] === [2023-12-20 03:08:01,491 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:08:01,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1235003982, now seen corresponding path program 1 times [2023-12-20 03:08:01,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:08:01,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436891494] [2023-12-20 03:08:01,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:08:01,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:08:01,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:08:01,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:08:01,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:08:01,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436891494] [2023-12-20 03:08:01,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436891494] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:08:01,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:08:01,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:08:01,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264554427] [2023-12-20 03:08:01,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:08:01,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:08:01,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:08:01,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:08:01,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:08:01,570 INFO L87 Difference]: Start difference. First operand 2256 states and 3107 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:08:01,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:08:01,617 INFO L93 Difference]: Finished difference Result 6380 states and 8751 transitions. [2023-12-20 03:08:01,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:08:01,618 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2023-12-20 03:08:01,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:08:01,630 INFO L225 Difference]: With dead ends: 6380 [2023-12-20 03:08:01,630 INFO L226 Difference]: Without dead ends: 4206 [2023-12-20 03:08:01,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:08:01,633 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 53 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:08:01,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 263 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:08:01,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4206 states. [2023-12-20 03:08:01,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4206 to 3980. [2023-12-20 03:08:01,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3980 states, 3979 states have (on average 1.356119628047248) internal successors, (5396), 3979 states have internal predecessors, (5396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:08:01,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3980 states to 3980 states and 5396 transitions. [2023-12-20 03:08:01,710 INFO L78 Accepts]: Start accepts. Automaton has 3980 states and 5396 transitions. Word has length 78 [2023-12-20 03:08:01,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:08:01,710 INFO L495 AbstractCegarLoop]: Abstraction has 3980 states and 5396 transitions. [2023-12-20 03:08:01,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:08:01,711 INFO L276 IsEmpty]: Start isEmpty. Operand 3980 states and 5396 transitions. [2023-12-20 03:08:01,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-20 03:08:01,711 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:08:01,712 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:08:01,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-20 03:08:01,712 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)] === [2023-12-20 03:08:01,712 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:08:01,712 INFO L85 PathProgramCache]: Analyzing trace with hash -1857807879, now seen corresponding path program 1 times [2023-12-20 03:08:01,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:08:01,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592322480] [2023-12-20 03:08:01,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:08:01,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:08:01,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:08:01,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:08:01,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:08:01,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592322480] [2023-12-20 03:08:01,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592322480] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:08:01,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:08:01,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:08:01,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78418416] [2023-12-20 03:08:01,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:08:01,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:08:01,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:08:01,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:08:01,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:08:01,787 INFO L87 Difference]: Start difference. First operand 3980 states and 5396 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:08:01,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:08:01,827 INFO L93 Difference]: Finished difference Result 11328 states and 15226 transitions. [2023-12-20 03:08:01,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:08:01,828 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2023-12-20 03:08:01,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:08:01,865 INFO L225 Difference]: With dead ends: 11328 [2023-12-20 03:08:01,865 INFO L226 Difference]: Without dead ends: 7430 [2023-12-20 03:08:01,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:08:01,873 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 43 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:08:01,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 263 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:08:01,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7430 states. [2023-12-20 03:08:01,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7430 to 6980. [2023-12-20 03:08:01,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6980 states, 6979 states have (on average 1.3248316377704543) internal successors, (9246), 6979 states have internal predecessors, (9246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:08:02,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6980 states to 6980 states and 9246 transitions. [2023-12-20 03:08:02,014 INFO L78 Accepts]: Start accepts. Automaton has 6980 states and 9246 transitions. Word has length 79 [2023-12-20 03:08:02,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:08:02,014 INFO L495 AbstractCegarLoop]: Abstraction has 6980 states and 9246 transitions. [2023-12-20 03:08:02,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:08:02,014 INFO L276 IsEmpty]: Start isEmpty. Operand 6980 states and 9246 transitions. [2023-12-20 03:08:02,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-20 03:08:02,015 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:08:02,015 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:08:02,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-20 03:08:02,016 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)] === [2023-12-20 03:08:02,016 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:08:02,016 INFO L85 PathProgramCache]: Analyzing trace with hash 123926530, now seen corresponding path program 1 times [2023-12-20 03:08:02,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:08:02,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809201774] [2023-12-20 03:08:02,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:08:02,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:08:02,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:08:02,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:08:02,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:08:02,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809201774] [2023-12-20 03:08:02,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809201774] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:08:02,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:08:02,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 03:08:02,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551621630] [2023-12-20 03:08:02,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:08:02,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 03:08:02,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:08:02,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 03:08:02,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-20 03:08:02,173 INFO L87 Difference]: Start difference. First operand 6980 states and 9246 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:08:02,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:08:02,249 INFO L93 Difference]: Finished difference Result 10516 states and 13892 transitions. [2023-12-20 03:08:02,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-20 03:08:02,254 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2023-12-20 03:08:02,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:08:02,275 INFO L225 Difference]: With dead ends: 10516 [2023-12-20 03:08:02,275 INFO L226 Difference]: Without dead ends: 10514 [2023-12-20 03:08:02,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-12-20 03:08:02,280 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 205 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 633 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 [2023-12-20 03:08:02,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 633 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:08:02,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10514 states. [2023-12-20 03:08:02,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10514 to 7172. [2023-12-20 03:08:02,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7172 states, 7171 states have (on average 1.30497838516246) internal successors, (9358), 7171 states have internal predecessors, (9358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:08:02,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7172 states to 7172 states and 9358 transitions. [2023-12-20 03:08:02,456 INFO L78 Accepts]: Start accepts. Automaton has 7172 states and 9358 transitions. Word has length 80 [2023-12-20 03:08:02,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:08:02,456 INFO L495 AbstractCegarLoop]: Abstraction has 7172 states and 9358 transitions. [2023-12-20 03:08:02,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:08:02,457 INFO L276 IsEmpty]: Start isEmpty. Operand 7172 states and 9358 transitions. [2023-12-20 03:08:02,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-20 03:08:02,459 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:08:02,459 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] [2023-12-20 03:08:02,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-20 03:08:02,459 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)] === [2023-12-20 03:08:02,460 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:08:02,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1385171760, now seen corresponding path program 1 times [2023-12-20 03:08:02,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:08:02,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682275655] [2023-12-20 03:08:02,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:08:02,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:08:02,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:08:02,825 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:08:02,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:08:02,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682275655] [2023-12-20 03:08:02,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682275655] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:08:02,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [819728471] [2023-12-20 03:08:02,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:08:02,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:08:02,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:08:02,832 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 03:08:02,844 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-20 03:08:03,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:08:03,023 INFO L262 TraceCheckSpWp]: Trace formula consists of 505 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-20 03:08:03,030 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:08:03,631 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:08:03,632 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 03:08:04,538 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:08:04,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [819728471] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 03:08:04,538 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 03:08:04,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 26 [2023-12-20 03:08:04,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110377519] [2023-12-20 03:08:04,539 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 03:08:04,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-12-20 03:08:04,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:08:04,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-12-20 03:08:04,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2023-12-20 03:08:04,541 INFO L87 Difference]: Start difference. First operand 7172 states and 9358 transitions. Second operand has 27 states, 27 states have (on average 9.148148148148149) internal successors, (247), 26 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:08:21,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:08:21,255 INFO L93 Difference]: Finished difference Result 115929 states and 146520 transitions. [2023-12-20 03:08:21,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 363 states. [2023-12-20 03:08:21,256 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 9.148148148148149) internal successors, (247), 26 states have internal predecessors, (247), 0 states have call successors, (0), 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 [2023-12-20 03:08:21,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:08:21,488 INFO L225 Difference]: With dead ends: 115929 [2023-12-20 03:08:21,488 INFO L226 Difference]: Without dead ends: 108839 [2023-12-20 03:08:21,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 571 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 384 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65152 ImplicationChecksByTransitivity, 13.7s TimeCoverageRelationStatistics Valid=15513, Invalid=133097, Unknown=0, NotChecked=0, Total=148610 [2023-12-20 03:08:21,777 INFO L413 NwaCegarLoop]: 287 mSDtfsCounter, 7591 mSDsluCounter, 4360 mSDsCounter, 0 mSdLazyCounter, 4280 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7591 SdHoareTripleChecker+Valid, 4647 SdHoareTripleChecker+Invalid, 4347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 4280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-20 03:08:21,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7591 Valid, 4647 Invalid, 4347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 4280 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-20 03:08:21,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108839 states. [2023-12-20 03:08:22,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108839 to 26642. [2023-12-20 03:08:22,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26642 states, 26641 states have (on average 1.290980068315754) internal successors, (34393), 26641 states have internal predecessors, (34393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:08:22,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26642 states to 26642 states and 34393 transitions. [2023-12-20 03:08:22,906 INFO L78 Accepts]: Start accepts. Automaton has 26642 states and 34393 transitions. Word has length 102 [2023-12-20 03:08:22,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:08:22,906 INFO L495 AbstractCegarLoop]: Abstraction has 26642 states and 34393 transitions. [2023-12-20 03:08:22,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 9.148148148148149) internal successors, (247), 26 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:08:22,906 INFO L276 IsEmpty]: Start isEmpty. Operand 26642 states and 34393 transitions. [2023-12-20 03:08:22,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-20 03:08:22,911 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:08:22,911 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] [2023-12-20 03:08:22,923 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-20 03:08:23,119 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,SelfDestructingSolverStorable25 [2023-12-20 03:08:23,120 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)] === [2023-12-20 03:08:23,121 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:08:23,121 INFO L85 PathProgramCache]: Analyzing trace with hash -1001508215, now seen corresponding path program 1 times [2023-12-20 03:08:23,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:08:23,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250603977] [2023-12-20 03:08:23,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:08:23,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:08:23,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:08:23,741 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:08:23,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:08:23,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250603977] [2023-12-20 03:08:23,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250603977] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:08:23,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1803106702] [2023-12-20 03:08:23,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:08:23,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:08:23,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:08:23,743 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 03:08:23,746 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-20 03:08:23,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:08:23,913 INFO L262 TraceCheckSpWp]: Trace formula consists of 510 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-20 03:08:23,918 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:08:24,383 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:08:24,384 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 03:08:24,986 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:08:24,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1803106702] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 03:08:24,986 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 03:08:24,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10, 10] total 30 [2023-12-20 03:08:24,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841826085] [2023-12-20 03:08:24,987 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 03:08:24,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-12-20 03:08:24,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:08:24,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-12-20 03:08:24,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=792, Unknown=0, NotChecked=0, Total=870 [2023-12-20 03:08:24,989 INFO L87 Difference]: Start difference. First operand 26642 states and 34393 transitions. Second operand has 30 states, 30 states have (on average 9.433333333333334) internal successors, (283), 30 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) [2023-12-20 03:09:22,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:09:22,490 INFO L93 Difference]: Finished difference Result 314238 states and 397114 transitions. [2023-12-20 03:09:22,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 847 states. [2023-12-20 03:09:22,490 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 9.433333333333334) internal successors, (283), 30 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 [2023-12-20 03:09:22,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:09:22,982 INFO L225 Difference]: With dead ends: 314238 [2023-12-20 03:09:22,982 INFO L226 Difference]: Without dead ends: 287686 [2023-12-20 03:09:23,434 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1062 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 873 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 373859 ImplicationChecksByTransitivity, 52.8s TimeCoverageRelationStatistics Valid=66538, Invalid=698212, Unknown=0, NotChecked=0, Total=764750 [2023-12-20 03:09:23,435 INFO L413 NwaCegarLoop]: 260 mSDtfsCounter, 29109 mSDsluCounter, 4162 mSDsCounter, 0 mSdLazyCounter, 4155 mSolverCounterSat, 360 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29109 SdHoareTripleChecker+Valid, 4422 SdHoareTripleChecker+Invalid, 4515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 360 IncrementalHoareTripleChecker+Valid, 4155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-12-20 03:09:23,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29109 Valid, 4422 Invalid, 4515 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [360 Valid, 4155 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-12-20 03:09:23,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287686 states. [2023-12-20 03:09:25,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287686 to 64808. [2023-12-20 03:09:25,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64808 states, 64807 states have (on average 1.284676038082306) internal successors, (83256), 64807 states have internal predecessors, (83256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:09:25,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64808 states to 64808 states and 83256 transitions. [2023-12-20 03:09:25,578 INFO L78 Accepts]: Start accepts. Automaton has 64808 states and 83256 transitions. Word has length 103 [2023-12-20 03:09:25,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:09:25,578 INFO L495 AbstractCegarLoop]: Abstraction has 64808 states and 83256 transitions. [2023-12-20 03:09:25,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 9.433333333333334) internal successors, (283), 30 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) [2023-12-20 03:09:25,579 INFO L276 IsEmpty]: Start isEmpty. Operand 64808 states and 83256 transitions. [2023-12-20 03:09:25,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-20 03:09:25,588 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:09:25,588 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] [2023-12-20 03:09:25,596 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-20 03:09:25,795 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,SelfDestructingSolverStorable26 [2023-12-20 03:09:25,795 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)] === [2023-12-20 03:09:25,796 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:09:25,796 INFO L85 PathProgramCache]: Analyzing trace with hash -4760264, now seen corresponding path program 1 times [2023-12-20 03:09:25,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:09:25,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481437372] [2023-12-20 03:09:25,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:09:25,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:09:25,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:09:26,070 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:09:26,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:09:26,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481437372] [2023-12-20 03:09:26,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481437372] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:09:26,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:09:26,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:09:26,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817529188] [2023-12-20 03:09:26,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:09:26,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:09:26,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:09:26,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:09:26,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:09:26,074 INFO L87 Difference]: Start difference. First operand 64808 states and 83256 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) [2023-12-20 03:09:26,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:09:26,495 INFO L93 Difference]: Finished difference Result 127590 states and 163904 transitions. [2023-12-20 03:09:26,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:09:26,496 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 [2023-12-20 03:09:26,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:09:26,590 INFO L225 Difference]: With dead ends: 127590 [2023-12-20 03:09:26,590 INFO L226 Difference]: Without dead ends: 62910 [2023-12-20 03:09:26,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:09:26,793 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 52 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 247 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 [2023-12-20 03:09:26,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 247 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:09:26,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62910 states. [2023-12-20 03:09:27,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62910 to 56418. [2023-12-20 03:09:27,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56418 states, 56417 states have (on average 1.2783026392753958) internal successors, (72118), 56417 states have internal predecessors, (72118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:09:27,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56418 states to 56418 states and 72118 transitions. [2023-12-20 03:09:27,644 INFO L78 Accepts]: Start accepts. Automaton has 56418 states and 72118 transitions. Word has length 104 [2023-12-20 03:09:27,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:09:27,644 INFO L495 AbstractCegarLoop]: Abstraction has 56418 states and 72118 transitions. [2023-12-20 03:09:27,645 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) [2023-12-20 03:09:27,645 INFO L276 IsEmpty]: Start isEmpty. Operand 56418 states and 72118 transitions. [2023-12-20 03:09:27,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-20 03:09:27,654 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:09:27,654 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] [2023-12-20 03:09:27,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-20 03:09:27,655 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)] === [2023-12-20 03:09:27,655 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:09:27,655 INFO L85 PathProgramCache]: Analyzing trace with hash 2074954427, now seen corresponding path program 1 times [2023-12-20 03:09:27,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:09:27,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331053282] [2023-12-20 03:09:27,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:09:27,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:09:27,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:09:27,842 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-20 03:09:27,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:09:27,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331053282] [2023-12-20 03:09:27,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331053282] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:09:27,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:09:27,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:09:27,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434581620] [2023-12-20 03:09:27,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:09:27,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:09:27,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:09:27,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:09:27,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:09:27,845 INFO L87 Difference]: Start difference. First operand 56418 states and 72118 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:09:28,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:09:28,491 INFO L93 Difference]: Finished difference Result 136482 states and 174265 transitions. [2023-12-20 03:09:28,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-20 03:09:28,491 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 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 104 [2023-12-20 03:09:28,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:09:28,604 INFO L225 Difference]: With dead ends: 136482 [2023-12-20 03:09:28,604 INFO L226 Difference]: Without dead ends: 80164 [2023-12-20 03:09:28,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2023-12-20 03:09:28,650 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 331 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 03:09:28,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [331 Valid, 507 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 03:09:28,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80164 states. [2023-12-20 03:09:29,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80164 to 56418. [2023-12-20 03:09:29,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56418 states, 56417 states have (on average 1.2782317386603328) internal successors, (72114), 56417 states have internal predecessors, (72114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:09:29,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56418 states to 56418 states and 72114 transitions. [2023-12-20 03:09:29,657 INFO L78 Accepts]: Start accepts. Automaton has 56418 states and 72114 transitions. Word has length 104 [2023-12-20 03:09:29,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:09:29,658 INFO L495 AbstractCegarLoop]: Abstraction has 56418 states and 72114 transitions. [2023-12-20 03:09:29,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:09:29,658 INFO L276 IsEmpty]: Start isEmpty. Operand 56418 states and 72114 transitions. [2023-12-20 03:09:29,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-20 03:09:29,664 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:09:29,664 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, 1] [2023-12-20 03:09:29,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-12-20 03:09:29,664 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)] === [2023-12-20 03:09:29,664 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:09:29,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1006298418, now seen corresponding path program 1 times [2023-12-20 03:09:29,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:09:29,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318828374] [2023-12-20 03:09:29,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:09:29,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:09:29,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:09:30,143 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:09:30,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:09:30,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318828374] [2023-12-20 03:09:30,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318828374] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:09:30,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1492589542] [2023-12-20 03:09:30,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:09:30,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:09:30,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:09:30,145 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 03:09:30,147 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-20 03:09:30,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:09:30,331 INFO L262 TraceCheckSpWp]: Trace formula consists of 512 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-20 03:09:30,334 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:09:30,933 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:09:30,934 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 03:09:32,352 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:09:32,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1492589542] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 03:09:32,352 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 03:09:32,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 28 [2023-12-20 03:09:32,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126737354] [2023-12-20 03:09:32,353 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 03:09:32,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-12-20 03:09:32,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:09:32,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-12-20 03:09:32,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=709, Unknown=0, NotChecked=0, Total=812 [2023-12-20 03:09:32,354 INFO L87 Difference]: Start difference. First operand 56418 states and 72114 transitions. Second operand has 29 states, 29 states have (on average 9.068965517241379) internal successors, (263), 28 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) [2023-12-20 03:09:36,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:09:36,101 INFO L93 Difference]: Finished difference Result 235923 states and 298789 transitions. [2023-12-20 03:09:36,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2023-12-20 03:09:36,101 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 9.068965517241379) internal successors, (263), 28 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 105 [2023-12-20 03:09:36,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:09:36,383 INFO L225 Difference]: With dead ends: 235923 [2023-12-20 03:09:36,383 INFO L226 Difference]: Without dead ends: 208641 [2023-12-20 03:09:36,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 192 SyntacticMatches, 1 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1970 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1818, Invalid=6372, Unknown=0, NotChecked=0, Total=8190 [2023-12-20 03:09:36,420 INFO L413 NwaCegarLoop]: 182 mSDtfsCounter, 2557 mSDsluCounter, 1546 mSDsCounter, 0 mSdLazyCounter, 2098 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2557 SdHoareTripleChecker+Valid, 1728 SdHoareTripleChecker+Invalid, 2149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 2098 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-20 03:09:36,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2557 Valid, 1728 Invalid, 2149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 2098 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-20 03:09:36,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208641 states. [2023-12-20 03:09:38,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208641 to 87440. [2023-12-20 03:09:38,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87440 states, 87439 states have (on average 1.2726014707396014) internal successors, (111275), 87439 states have internal predecessors, (111275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:09:38,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87440 states to 87440 states and 111275 transitions. [2023-12-20 03:09:38,201 INFO L78 Accepts]: Start accepts. Automaton has 87440 states and 111275 transitions. Word has length 105 [2023-12-20 03:09:38,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:09:38,201 INFO L495 AbstractCegarLoop]: Abstraction has 87440 states and 111275 transitions. [2023-12-20 03:09:38,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 9.068965517241379) internal successors, (263), 28 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) [2023-12-20 03:09:38,201 INFO L276 IsEmpty]: Start isEmpty. Operand 87440 states and 111275 transitions. [2023-12-20 03:09:38,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-20 03:09:38,211 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:09:38,211 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, 1, 1] [2023-12-20 03:09:38,218 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-20 03:09:38,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:09:38,417 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)] === [2023-12-20 03:09:38,418 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:09:38,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1500704534, now seen corresponding path program 1 times [2023-12-20 03:09:38,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:09:38,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568340862] [2023-12-20 03:09:38,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:09:38,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:09:38,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:09:39,271 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-20 03:09:39,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:09:39,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568340862] [2023-12-20 03:09:39,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568340862] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:09:39,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:09:39,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-12-20 03:09:39,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124101456] [2023-12-20 03:09:39,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:09:39,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-20 03:09:39,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:09:39,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-20 03:09:39,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=236, Unknown=0, NotChecked=0, Total=272 [2023-12-20 03:09:39,273 INFO L87 Difference]: Start difference. First operand 87440 states and 111275 transitions. Second operand has 17 states, 17 states have (on average 5.823529411764706) internal successors, (99), 16 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:09:40,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:09:40,312 INFO L93 Difference]: Finished difference Result 170371 states and 217333 transitions. [2023-12-20 03:09:40,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-20 03:09:40,313 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.823529411764706) internal successors, (99), 16 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2023-12-20 03:09:40,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:09:40,456 INFO L225 Difference]: With dead ends: 170371 [2023-12-20 03:09:40,456 INFO L226 Difference]: Without dead ends: 112075 [2023-12-20 03:09:40,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=160, Invalid=710, Unknown=0, NotChecked=0, Total=870 [2023-12-20 03:09:40,493 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 541 mSDsluCounter, 1136 mSDsCounter, 0 mSdLazyCounter, 666 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 541 SdHoareTripleChecker+Valid, 1243 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 03:09:40,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [541 Valid, 1243 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 666 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 03:09:40,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112075 states. [2023-12-20 03:09:41,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112075 to 79703. [2023-12-20 03:09:41,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79703 states, 79702 states have (on average 1.2747986248776693) internal successors, (101604), 79702 states have internal predecessors, (101604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:09:41,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79703 states to 79703 states and 101604 transitions. [2023-12-20 03:09:41,561 INFO L78 Accepts]: Start accepts. Automaton has 79703 states and 101604 transitions. Word has length 106 [2023-12-20 03:09:41,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:09:41,561 INFO L495 AbstractCegarLoop]: Abstraction has 79703 states and 101604 transitions. [2023-12-20 03:09:41,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.823529411764706) internal successors, (99), 16 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:09:41,562 INFO L276 IsEmpty]: Start isEmpty. Operand 79703 states and 101604 transitions. [2023-12-20 03:09:41,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-20 03:09:41,570 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:09:41,570 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, 1, 1] [2023-12-20 03:09:41,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-12-20 03:09:41,570 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)] === [2023-12-20 03:09:41,571 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:09:41,571 INFO L85 PathProgramCache]: Analyzing trace with hash 973692557, now seen corresponding path program 1 times [2023-12-20 03:09:41,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:09:41,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897115292] [2023-12-20 03:09:41,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:09:41,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:09:41,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:09:42,003 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:09:42,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:09:42,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897115292] [2023-12-20 03:09:42,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897115292] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:09:42,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [376785782] [2023-12-20 03:09:42,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:09:42,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:09:42,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:09:42,005 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 03:09:42,029 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-20 03:09:42,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:09:42,157 INFO L262 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-20 03:09:42,165 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:09:42,812 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:09:42,812 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 03:09:43,632 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:09:43,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [376785782] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 03:09:43,633 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 03:09:43,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11, 12] total 29 [2023-12-20 03:09:43,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990575649] [2023-12-20 03:09:43,633 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 03:09:43,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-12-20 03:09:43,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:09:43,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-12-20 03:09:43,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=736, Unknown=0, NotChecked=0, Total=870 [2023-12-20 03:09:43,635 INFO L87 Difference]: Start difference. First operand 79703 states and 101604 transitions. Second operand has 30 states, 30 states have (on average 10.133333333333333) internal successors, (304), 29 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:09:53,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:09:53,336 INFO L93 Difference]: Finished difference Result 452416 states and 563484 transitions. [2023-12-20 03:09:53,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2023-12-20 03:09:53,336 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 10.133333333333333) internal successors, (304), 29 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2023-12-20 03:09:53,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:09:54,275 INFO L225 Difference]: With dead ends: 452416 [2023-12-20 03:09:54,275 INFO L226 Difference]: Without dead ends: 416909 [2023-12-20 03:09:54,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 412 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 222 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19363 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=9016, Invalid=40936, Unknown=0, NotChecked=0, Total=49952 [2023-12-20 03:09:54,339 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 5525 mSDsluCounter, 2910 mSDsCounter, 0 mSdLazyCounter, 2949 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5525 SdHoareTripleChecker+Valid, 3120 SdHoareTripleChecker+Invalid, 3038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 2949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-20 03:09:54,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5525 Valid, 3120 Invalid, 3038 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 2949 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-20 03:09:54,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416909 states. [2023-12-20 03:09:56,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416909 to 87400. [2023-12-20 03:09:56,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87400 states, 87399 states have (on average 1.27270334900857) internal successors, (111233), 87399 states have internal predecessors, (111233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:09:57,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87400 states to 87400 states and 111233 transitions. [2023-12-20 03:09:57,064 INFO L78 Accepts]: Start accepts. Automaton has 87400 states and 111233 transitions. Word has length 106 [2023-12-20 03:09:57,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:09:57,064 INFO L495 AbstractCegarLoop]: Abstraction has 87400 states and 111233 transitions. [2023-12-20 03:09:57,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 10.133333333333333) internal successors, (304), 29 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:09:57,064 INFO L276 IsEmpty]: Start isEmpty. Operand 87400 states and 111233 transitions. [2023-12-20 03:09:57,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-20 03:09:57,070 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:09:57,071 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, 1, 1] [2023-12-20 03:09:57,077 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-20 03:09:57,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:09:57,277 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)] === [2023-12-20 03:09:57,278 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:09:57,278 INFO L85 PathProgramCache]: Analyzing trace with hash 758794745, now seen corresponding path program 1 times [2023-12-20 03:09:57,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:09:57,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673103904] [2023-12-20 03:09:57,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:09:57,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:09:57,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:09:58,206 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:09:58,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:09:58,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673103904] [2023-12-20 03:09:58,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673103904] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:09:58,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1982739899] [2023-12-20 03:09:58,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:09:58,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:09:58,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:09:58,208 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 03:09:58,210 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-20 03:09:58,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:09:58,360 INFO L262 TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-20 03:09:58,362 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:09:59,657 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:09:59,657 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 03:10:01,189 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:10:01,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1982739899] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 03:10:01,189 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 03:10:01,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 17, 17] total 50 [2023-12-20 03:10:01,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068638568] [2023-12-20 03:10:01,189 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 03:10:01,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2023-12-20 03:10:01,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:10:01,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2023-12-20 03:10:01,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=2297, Unknown=0, NotChecked=0, Total=2450 [2023-12-20 03:10:01,191 INFO L87 Difference]: Start difference. First operand 87400 states and 111233 transitions. Second operand has 50 states, 50 states have (on average 5.94) internal successors, (297), 50 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:10:28,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:10:28,775 INFO L93 Difference]: Finished difference Result 420166 states and 527732 transitions. [2023-12-20 03:10:28,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 291 states. [2023-12-20 03:10:28,775 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 5.94) internal successors, (297), 50 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2023-12-20 03:10:28,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:10:29,239 INFO L225 Difference]: With dead ends: 420166 [2023-12-20 03:10:29,239 INFO L226 Difference]: Without dead ends: 374848 [2023-12-20 03:10:29,349 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 517 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 336 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43786 ImplicationChecksByTransitivity, 21.7s TimeCoverageRelationStatistics Valid=10013, Invalid=103893, Unknown=0, NotChecked=0, Total=113906 [2023-12-20 03:10:29,350 INFO L413 NwaCegarLoop]: 779 mSDtfsCounter, 7431 mSDsluCounter, 23215 mSDsCounter, 0 mSdLazyCounter, 9339 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7431 SdHoareTripleChecker+Valid, 23994 SdHoareTripleChecker+Invalid, 9360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 9339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2023-12-20 03:10:29,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7431 Valid, 23994 Invalid, 9360 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [21 Valid, 9339 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2023-12-20 03:10:29,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374848 states. [2023-12-20 03:10:31,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374848 to 131279. [2023-12-20 03:10:32,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131279 states, 131278 states have (on average 1.278721491796036) internal successors, (167868), 131278 states have internal predecessors, (167868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:10:32,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131279 states to 131279 states and 167868 transitions. [2023-12-20 03:10:32,169 INFO L78 Accepts]: Start accepts. Automaton has 131279 states and 167868 transitions. Word has length 106 [2023-12-20 03:10:32,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:10:32,170 INFO L495 AbstractCegarLoop]: Abstraction has 131279 states and 167868 transitions. [2023-12-20 03:10:32,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 5.94) internal successors, (297), 50 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:10:32,170 INFO L276 IsEmpty]: Start isEmpty. Operand 131279 states and 167868 transitions. [2023-12-20 03:10:32,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-20 03:10:32,176 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:10:32,176 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, 1, 1, 1] [2023-12-20 03:10:32,181 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-20 03:10:32,376 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,SelfDestructingSolverStorable32 [2023-12-20 03:10:32,376 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)] === [2023-12-20 03:10:32,377 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:10:32,377 INFO L85 PathProgramCache]: Analyzing trace with hash 1349385958, now seen corresponding path program 1 times [2023-12-20 03:10:32,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:10:32,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253403999] [2023-12-20 03:10:32,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:10:32,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:10:32,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:10:32,956 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:10:32,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:10:32,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253403999] [2023-12-20 03:10:32,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253403999] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:10:32,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [731323617] [2023-12-20 03:10:32,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:10:32,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:10:32,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:10:32,957 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) [2023-12-20 03:10:32,960 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-20 03:10:33,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:10:33,139 INFO L262 TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-20 03:10:33,142 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:10:34,149 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:10:34,149 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 03:10:36,561 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:10:36,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [731323617] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 03:10:36,562 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 03:10:36,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17, 17] total 46 [2023-12-20 03:10:36,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665520986] [2023-12-20 03:10:36,562 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 03:10:36,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-12-20 03:10:36,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:10:36,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-12-20 03:10:36,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=1889, Unknown=0, NotChecked=0, Total=2070 [2023-12-20 03:10:36,565 INFO L87 Difference]: Start difference. First operand 131279 states and 167868 transitions. Second operand has 46 states, 46 states have (on average 6.3478260869565215) internal successors, (292), 46 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) [2023-12-20 03:10:40,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:10:40,643 INFO L93 Difference]: Finished difference Result 464447 states and 589003 transitions. [2023-12-20 03:10:40,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2023-12-20 03:10:40,644 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 6.3478260869565215) internal successors, (292), 46 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 107 [2023-12-20 03:10:40,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:10:41,568 INFO L225 Difference]: With dead ends: 464447 [2023-12-20 03:10:41,568 INFO L226 Difference]: Without dead ends: 408157 [2023-12-20 03:10:41,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1634 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=944, Invalid=5862, Unknown=0, NotChecked=0, Total=6806 [2023-12-20 03:10:41,639 INFO L413 NwaCegarLoop]: 312 mSDtfsCounter, 2068 mSDsluCounter, 7248 mSDsCounter, 0 mSdLazyCounter, 2198 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2068 SdHoareTripleChecker+Valid, 7560 SdHoareTripleChecker+Invalid, 2217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 2198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-20 03:10:41,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2068 Valid, 7560 Invalid, 2217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 2198 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-20 03:10:41,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408157 states. [2023-12-20 03:10:44,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408157 to 154426. [2023-12-20 03:10:44,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154426 states, 154425 states have (on average 1.2769823538934757) internal successors, (197198), 154425 states have internal predecessors, (197198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:10:44,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154426 states to 154426 states and 197198 transitions. [2023-12-20 03:10:44,651 INFO L78 Accepts]: Start accepts. Automaton has 154426 states and 197198 transitions. Word has length 107 [2023-12-20 03:10:44,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:10:44,652 INFO L495 AbstractCegarLoop]: Abstraction has 154426 states and 197198 transitions. [2023-12-20 03:10:44,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 6.3478260869565215) internal successors, (292), 46 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) [2023-12-20 03:10:44,653 INFO L276 IsEmpty]: Start isEmpty. Operand 154426 states and 197198 transitions. [2023-12-20 03:10:44,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-20 03:10:44,662 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:10:44,662 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, 1, 1, 1] [2023-12-20 03:10:44,668 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-12-20 03:10:44,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:10:44,868 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)] === [2023-12-20 03:10:44,868 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:10:44,869 INFO L85 PathProgramCache]: Analyzing trace with hash 86487211, now seen corresponding path program 1 times [2023-12-20 03:10:44,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:10:44,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063101787] [2023-12-20 03:10:44,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:10:44,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:10:44,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:10:45,927 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:10:45,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:10:45,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063101787] [2023-12-20 03:10:45,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063101787] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:10:45,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [526536810] [2023-12-20 03:10:45,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:10:45,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:10:45,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:10:45,930 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) [2023-12-20 03:10:45,932 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-20 03:10:46,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:10:46,103 INFO L262 TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 41 conjunts are in the unsatisfiable core [2023-12-20 03:10:46,106 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:10:47,876 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:10:47,876 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 03:10:49,236 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:10:49,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [526536810] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 03:10:49,236 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 03:10:49,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 21, 17] total 53 [2023-12-20 03:10:49,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924616705] [2023-12-20 03:10:49,236 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 03:10:49,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2023-12-20 03:10:49,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:10:49,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2023-12-20 03:10:49,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=263, Invalid=2493, Unknown=0, NotChecked=0, Total=2756 [2023-12-20 03:10:49,238 INFO L87 Difference]: Start difference. First operand 154426 states and 197198 transitions. Second operand has 53 states, 53 states have (on average 5.452830188679245) internal successors, (289), 53 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) [2023-12-20 03:13:21,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:13:21,905 INFO L93 Difference]: Finished difference Result 922933 states and 1157550 transitions. [2023-12-20 03:13:21,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 1006 states. [2023-12-20 03:13:21,906 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 53 states have (on average 5.452830188679245) internal successors, (289), 53 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 107 [2023-12-20 03:13:21,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:13:23,329 INFO L225 Difference]: With dead ends: 922933 [2023-12-20 03:13:23,329 INFO L226 Difference]: Without dead ends: 871415 [2023-12-20 03:13:23,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1234 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 1055 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 523470 ImplicationChecksByTransitivity, 131.6s TimeCoverageRelationStatistics Valid=73900, Invalid=1042292, Unknown=0, NotChecked=0, Total=1116192 [2023-12-20 03:13:23,788 INFO L413 NwaCegarLoop]: 1687 mSDtfsCounter, 22660 mSDsluCounter, 51029 mSDsCounter, 0 mSdLazyCounter, 21678 mSolverCounterSat, 235 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22660 SdHoareTripleChecker+Valid, 52716 SdHoareTripleChecker+Invalid, 21913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 235 IncrementalHoareTripleChecker+Valid, 21678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2023-12-20 03:13:23,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22660 Valid, 52716 Invalid, 21913 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [235 Valid, 21678 Invalid, 0 Unknown, 0 Unchecked, 15.3s Time] [2023-12-20 03:13:24,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 871415 states. [2023-12-20 03:13:28,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 871415 to 160909. [2023-12-20 03:13:28,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160909 states, 160908 states have (on average 1.2803713923484228) internal successors, (206022), 160908 states have internal predecessors, (206022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:13:28,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160909 states to 160909 states and 206022 transitions. [2023-12-20 03:13:28,943 INFO L78 Accepts]: Start accepts. Automaton has 160909 states and 206022 transitions. Word has length 107 [2023-12-20 03:13:28,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:13:28,944 INFO L495 AbstractCegarLoop]: Abstraction has 160909 states and 206022 transitions. [2023-12-20 03:13:28,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 5.452830188679245) internal successors, (289), 53 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) [2023-12-20 03:13:28,944 INFO L276 IsEmpty]: Start isEmpty. Operand 160909 states and 206022 transitions. [2023-12-20 03:13:28,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-20 03:13:28,951 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:13:28,951 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, 1] [2023-12-20 03:13:28,958 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-20 03:13:29,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:13:29,152 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)] === [2023-12-20 03:13:29,152 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:13:29,153 INFO L85 PathProgramCache]: Analyzing trace with hash -1273309656, now seen corresponding path program 1 times [2023-12-20 03:13:29,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:13:29,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193282522] [2023-12-20 03:13:29,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:13:29,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:13:29,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:13:30,051 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:13:30,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:13:30,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193282522] [2023-12-20 03:13:30,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193282522] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:13:30,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1127761465] [2023-12-20 03:13:30,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:13:30,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:13:30,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:13:30,053 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) [2023-12-20 03:13:30,061 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-20 03:13:30,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:13:30,202 INFO L262 TraceCheckSpWp]: Trace formula consists of 512 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-20 03:13:30,204 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:13:30,502 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-20 03:13:30,503 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 03:13:31,171 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-20 03:13:31,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1127761465] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 03:13:31,171 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 03:13:31,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 7, 9] total 30 [2023-12-20 03:13:31,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242218601] [2023-12-20 03:13:31,171 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 03:13:31,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-12-20 03:13:31,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:13:31,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-12-20 03:13:31,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=762, Unknown=0, NotChecked=0, Total=870 [2023-12-20 03:13:31,174 INFO L87 Difference]: Start difference. First operand 160909 states and 206022 transitions. Second operand has 30 states, 30 states have (on average 10.166666666666666) internal successors, (305), 30 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:13:41,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:13:41,910 INFO L93 Difference]: Finished difference Result 735829 states and 943259 transitions. [2023-12-20 03:13:41,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2023-12-20 03:13:41,911 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 10.166666666666666) internal successors, (305), 30 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2023-12-20 03:13:41,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:13:43,052 INFO L225 Difference]: With dead ends: 735829 [2023-12-20 03:13:43,052 INFO L226 Difference]: Without dead ends: 575047 [2023-12-20 03:13:43,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 417 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 215 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18895 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=5339, Invalid=41533, Unknown=0, NotChecked=0, Total=46872 [2023-12-20 03:13:43,208 INFO L413 NwaCegarLoop]: 452 mSDtfsCounter, 4288 mSDsluCounter, 8212 mSDsCounter, 0 mSdLazyCounter, 5325 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4288 SdHoareTripleChecker+Valid, 8664 SdHoareTripleChecker+Invalid, 5400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 5325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-12-20 03:13:43,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4288 Valid, 8664 Invalid, 5400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 5325 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-12-20 03:13:43,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575047 states. [2023-12-20 03:13:47,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575047 to 413245. [2023-12-20 03:13:48,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413245 states, 413244 states have (on average 1.2826731906573356) internal successors, (530057), 413244 states have internal predecessors, (530057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:13:49,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413245 states to 413245 states and 530057 transitions. [2023-12-20 03:13:49,324 INFO L78 Accepts]: Start accepts. Automaton has 413245 states and 530057 transitions. Word has length 107 [2023-12-20 03:13:49,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:13:49,324 INFO L495 AbstractCegarLoop]: Abstraction has 413245 states and 530057 transitions. [2023-12-20 03:13:49,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 10.166666666666666) internal successors, (305), 30 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:13:49,324 INFO L276 IsEmpty]: Start isEmpty. Operand 413245 states and 530057 transitions. [2023-12-20 03:13:49,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-20 03:13:49,330 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:13:49,330 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:13:49,336 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-20 03:13:49,531 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,SelfDestructingSolverStorable35 [2023-12-20 03:13:49,532 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)] === [2023-12-20 03:13:49,532 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:13:49,532 INFO L85 PathProgramCache]: Analyzing trace with hash -1725363870, now seen corresponding path program 1 times [2023-12-20 03:13:49,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:13:49,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002041081] [2023-12-20 03:13:49,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:13:49,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:13:49,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:13:50,150 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:13:50,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:13:50,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002041081] [2023-12-20 03:13:50,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002041081] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:13:50,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1319205130] [2023-12-20 03:13:50,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:13:50,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:13:50,151 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:13:50,152 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) [2023-12-20 03:13:50,153 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-20 03:13:50,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:13:50,295 INFO L262 TraceCheckSpWp]: Trace formula consists of 510 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-20 03:13:50,298 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:13:50,827 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:13:50,827 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 03:13:51,349 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:13:51,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1319205130] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 03:13:51,350 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 03:13:51,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 9] total 21 [2023-12-20 03:13:51,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497798233] [2023-12-20 03:13:51,350 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 03:13:51,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-12-20 03:13:51,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:13:51,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-12-20 03:13:51,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=354, Unknown=0, NotChecked=0, Total=420 [2023-12-20 03:13:51,351 INFO L87 Difference]: Start difference. First operand 413245 states and 530057 transitions. Second operand has 21 states, 21 states have (on average 12.857142857142858) internal successors, (270), 21 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:13:55,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:13:55,218 INFO L93 Difference]: Finished difference Result 772483 states and 984229 transitions. [2023-12-20 03:13:55,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-12-20 03:13:55,219 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 12.857142857142858) internal successors, (270), 21 states have internal predecessors, (270), 0 states have call successors, (0), 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 107 [2023-12-20 03:13:55,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:13:57,270 INFO L225 Difference]: With dead ends: 772483 [2023-12-20 03:13:57,270 INFO L226 Difference]: Without dead ends: 736672 [2023-12-20 03:13:57,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 630 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=687, Invalid=2283, Unknown=0, NotChecked=0, Total=2970 [2023-12-20 03:13:57,564 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 1352 mSDsluCounter, 1395 mSDsCounter, 0 mSdLazyCounter, 1366 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1352 SdHoareTripleChecker+Valid, 1519 SdHoareTripleChecker+Invalid, 1373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 03:13:57,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1352 Valid, 1519 Invalid, 1373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1366 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 03:13:58,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736672 states.