/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-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+sep-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 23:31:19,695 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 23:31:19,754 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-15 23:31:19,757 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 23:31:19,758 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 23:31:19,775 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 23:31:19,776 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 23:31:19,776 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 23:31:19,776 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 23:31:19,779 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 23:31:19,779 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 23:31:19,780 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 23:31:19,780 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 23:31:19,781 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 23:31:19,781 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 23:31:19,781 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 23:31:19,781 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 23:31:19,781 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 23:31:19,782 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 23:31:19,782 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 23:31:19,782 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 23:31:19,784 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 23:31:19,784 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 23:31:19,784 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 23:31:19,784 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 23:31:19,784 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 23:31:19,785 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 23:31:19,785 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 23:31:19,785 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 23:31:19,785 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 23:31:19,786 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 23:31:19,786 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 23:31:19,786 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 23:31:19,786 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 23:31:19,786 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 23:31:19,787 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 23:31:19,787 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 23:31:19,787 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 23:31:19,787 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 23:31:19,787 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 23:31:19,787 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 23:31:19,787 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 23:31:19,787 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 23:31:19,787 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 23:31:19,970 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 23:31:19,994 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 23:31:19,996 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 23:31:19,997 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 23:31:19,999 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 23:31:20,000 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+sep-reducer.c [2023-12-15 23:31:21,048 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 23:31:21,387 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 23:31:21,388 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+sep-reducer.c [2023-12-15 23:31:21,422 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8090a0184/508ff8d18f3649c5aac7bf05353977c4/FLAG4f2866141 [2023-12-15 23:31:21,436 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8090a0184/508ff8d18f3649c5aac7bf05353977c4 [2023-12-15 23:31:21,438 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 23:31:21,439 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 23:31:21,442 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 23:31:21,442 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 23:31:21,445 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 23:31:21,445 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:31:21" (1/1) ... [2023-12-15 23:31:21,446 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a020f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:31:21, skipping insertion in model container [2023-12-15 23:31:21,446 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:31:21" (1/1) ... [2023-12-15 23:31:21,571 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 23:31:21,927 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-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[32048,32061] [2023-12-15 23:31:22,000 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-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[55802,55815] [2023-12-15 23:31:22,033 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-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[64372,64385] [2023-12-15 23:31:22,084 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-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[91775,91788] [2023-12-15 23:31:22,125 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-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[106857,106870] [2023-12-15 23:31:22,165 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-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[123963,123976] [2023-12-15 23:31:22,201 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-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[141761,141774] [2023-12-15 23:31:22,341 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 23:31:22,362 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 23:31:22,421 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-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[32048,32061] [2023-12-15 23:31:22,450 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-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[55802,55815] [2023-12-15 23:31:22,459 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-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[64372,64385] [2023-12-15 23:31:22,487 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-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[91775,91788] [2023-12-15 23:31:22,505 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[106857,106870] [2023-12-15 23:31:22,523 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-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[123963,123976] [2023-12-15 23:31:22,543 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-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[141761,141774] [2023-12-15 23:31:22,678 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 23:31:22,699 INFO L206 MainTranslator]: Completed translation [2023-12-15 23:31:22,701 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:31:22 WrapperNode [2023-12-15 23:31:22,701 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 23:31:22,701 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 23:31:22,702 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 23:31:22,702 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 23:31:22,706 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:31:22" (1/1) ... [2023-12-15 23:31:22,744 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:31:22" (1/1) ... [2023-12-15 23:31:22,856 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 10238 [2023-12-15 23:31:22,857 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 23:31:22,857 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 23:31:22,857 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 23:31:22,857 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 23:31:22,866 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:31:22" (1/1) ... [2023-12-15 23:31:22,866 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:31:22" (1/1) ... [2023-12-15 23:31:22,887 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:31:22" (1/1) ... [2023-12-15 23:31:22,942 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]. [2023-12-15 23:31:22,943 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:31:22" (1/1) ... [2023-12-15 23:31:22,943 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:31:22" (1/1) ... [2023-12-15 23:31:22,989 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:31:22" (1/1) ... [2023-12-15 23:31:23,014 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:31:22" (1/1) ... [2023-12-15 23:31:23,031 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:31:22" (1/1) ... [2023-12-15 23:31:23,048 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:31:22" (1/1) ... [2023-12-15 23:31:23,077 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 23:31:23,078 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 23:31:23,078 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 23:31:23,078 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 23:31:23,079 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:31:22" (1/1) ... [2023-12-15 23:31:23,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 23:31:23,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 23:31:23,102 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) [2023-12-15 23:31:23,106 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 [2023-12-15 23:31:23,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 23:31:23,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 23:31:23,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 23:31:23,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 23:31:23,458 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 23:31:23,459 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 23:31:26,186 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 23:31:26,277 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 23:31:26,277 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-15 23:31:26,277 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:31:26 BoogieIcfgContainer [2023-12-15 23:31:26,278 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 23:31:26,280 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 23:31:26,280 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 23:31:26,282 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 23:31:26,283 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:31:21" (1/3) ... [2023-12-15 23:31:26,284 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3622cae6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:31:26, skipping insertion in model container [2023-12-15 23:31:26,284 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:31:22" (2/3) ... [2023-12-15 23:31:26,284 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3622cae6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:31:26, skipping insertion in model container [2023-12-15 23:31:26,284 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:31:26" (3/3) ... [2023-12-15 23:31:26,285 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+sep-reducer.c [2023-12-15 23:31:26,297 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 23:31:26,297 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2023-12-15 23:31:26,347 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 23:31:26,351 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;@62c413dc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 23:31:26,351 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-12-15 23:31:26,360 INFO L276 IsEmpty]: Start isEmpty. Operand has 2044 states, 2036 states have (on average 1.7770137524557956) internal successors, (3618), 2043 states have internal predecessors, (3618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:26,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-15 23:31:26,376 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:31:26,377 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:31:26,377 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-15 23:31:26,381 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:31:26,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1909444281, now seen corresponding path program 1 times [2023-12-15 23:31:26,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:31:26,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864565805] [2023-12-15 23:31:26,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:31:26,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:31:26,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:31:26,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:31:26,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:31:26,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864565805] [2023-12-15 23:31:26,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864565805] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:31:26,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:31:26,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 23:31:26,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408284116] [2023-12-15 23:31:26,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:31:26,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 23:31:26,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:31:26,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 23:31:26,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 23:31:26,870 INFO L87 Difference]: Start difference. First operand has 2044 states, 2036 states have (on average 1.7770137524557956) internal successors, (3618), 2043 states have internal predecessors, (3618), 0 states have call successors, (0), 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 12.8) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:28,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:31:28,243 INFO L93 Difference]: Finished difference Result 3311 states and 5744 transitions. [2023-12-15 23:31:28,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 23:31:28,245 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2023-12-15 23:31:28,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:31:28,260 INFO L225 Difference]: With dead ends: 3311 [2023-12-15 23:31:28,261 INFO L226 Difference]: Without dead ends: 2140 [2023-12-15 23:31:28,265 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 [2023-12-15 23:31:28,268 INFO L413 NwaCegarLoop]: 1717 mSDtfsCounter, 10209 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 1523 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10209 SdHoareTripleChecker+Valid, 2238 SdHoareTripleChecker+Invalid, 1547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-15 23:31:28,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10209 Valid, 2238 Invalid, 1547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1523 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-15 23:31:28,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2023-12-15 23:31:28,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 2125. [2023-12-15 23:31:28,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2125 states, 2118 states have (on average 1.3035882908404155) internal successors, (2761), 2124 states have internal predecessors, (2761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:28,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2125 states to 2125 states and 2761 transitions. [2023-12-15 23:31:28,363 INFO L78 Accepts]: Start accepts. Automaton has 2125 states and 2761 transitions. Word has length 64 [2023-12-15 23:31:28,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:31:28,363 INFO L495 AbstractCegarLoop]: Abstraction has 2125 states and 2761 transitions. [2023-12-15 23:31:28,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:28,363 INFO L276 IsEmpty]: Start isEmpty. Operand 2125 states and 2761 transitions. [2023-12-15 23:31:28,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-15 23:31:28,367 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:31:28,367 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] [2023-12-15 23:31:28,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-15 23:31:28,367 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-15 23:31:28,368 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:31:28,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1273964660, now seen corresponding path program 1 times [2023-12-15 23:31:28,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:31:28,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207893938] [2023-12-15 23:31:28,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:31:28,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:31:28,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:31:28,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:31:28,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:31:28,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207893938] [2023-12-15 23:31:28,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207893938] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:31:28,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:31:28,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 23:31:28,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23212196] [2023-12-15 23:31:28,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:31:28,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 23:31:28,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:31:28,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 23:31:28,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 23:31:28,482 INFO L87 Difference]: Start difference. First operand 2125 states and 2761 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:29,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:31:29,566 INFO L93 Difference]: Finished difference Result 4351 states and 5735 transitions. [2023-12-15 23:31:29,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 23:31:29,566 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2023-12-15 23:31:29,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:31:29,574 INFO L225 Difference]: With dead ends: 4351 [2023-12-15 23:31:29,574 INFO L226 Difference]: Without dead ends: 2932 [2023-12-15 23:31:29,576 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 [2023-12-15 23:31:29,577 INFO L413 NwaCegarLoop]: 1084 mSDtfsCounter, 7918 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 1466 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7918 SdHoareTripleChecker+Valid, 1481 SdHoareTripleChecker+Invalid, 1497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-15 23:31:29,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7918 Valid, 1481 Invalid, 1497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1466 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-15 23:31:29,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2932 states. [2023-12-15 23:31:29,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2932 to 2926. [2023-12-15 23:31:29,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2926 states, 2919 states have (on average 1.3096951010620075) internal successors, (3823), 2925 states have internal predecessors, (3823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:29,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2926 states to 2926 states and 3823 transitions. [2023-12-15 23:31:29,619 INFO L78 Accepts]: Start accepts. Automaton has 2926 states and 3823 transitions. Word has length 65 [2023-12-15 23:31:29,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:31:29,619 INFO L495 AbstractCegarLoop]: Abstraction has 2926 states and 3823 transitions. [2023-12-15 23:31:29,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:29,619 INFO L276 IsEmpty]: Start isEmpty. Operand 2926 states and 3823 transitions. [2023-12-15 23:31:29,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-15 23:31:29,622 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:31:29,622 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] [2023-12-15 23:31:29,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-15 23:31:29,622 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-15 23:31:29,622 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:31:29,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1135153234, now seen corresponding path program 1 times [2023-12-15 23:31:29,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:31:29,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434750209] [2023-12-15 23:31:29,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:31:29,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:31:29,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:31:29,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:31:29,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:31:29,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434750209] [2023-12-15 23:31:29,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434750209] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:31:29,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:31:29,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 23:31:29,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479699554] [2023-12-15 23:31:29,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:31:29,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 23:31:29,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:31:29,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 23:31:29,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 23:31:29,729 INFO L87 Difference]: Start difference. First operand 2926 states and 3823 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:30,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:31:30,770 INFO L93 Difference]: Finished difference Result 6088 states and 7979 transitions. [2023-12-15 23:31:30,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 23:31:30,771 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2023-12-15 23:31:30,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:31:30,780 INFO L225 Difference]: With dead ends: 6088 [2023-12-15 23:31:30,780 INFO L226 Difference]: Without dead ends: 3982 [2023-12-15 23:31:30,783 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 [2023-12-15 23:31:30,783 INFO L413 NwaCegarLoop]: 1037 mSDtfsCounter, 7349 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 1327 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7349 SdHoareTripleChecker+Valid, 1413 SdHoareTripleChecker+Invalid, 1388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-15 23:31:30,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7349 Valid, 1413 Invalid, 1388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1327 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-15 23:31:30,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3982 states. [2023-12-15 23:31:30,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3982 to 3966. [2023-12-15 23:31:30,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3966 states, 3959 states have (on average 1.2924981055822178) internal successors, (5117), 3965 states have internal predecessors, (5117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:30,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3966 states to 3966 states and 5117 transitions. [2023-12-15 23:31:30,843 INFO L78 Accepts]: Start accepts. Automaton has 3966 states and 5117 transitions. Word has length 65 [2023-12-15 23:31:30,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:31:30,844 INFO L495 AbstractCegarLoop]: Abstraction has 3966 states and 5117 transitions. [2023-12-15 23:31:30,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:30,845 INFO L276 IsEmpty]: Start isEmpty. Operand 3966 states and 5117 transitions. [2023-12-15 23:31:30,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-15 23:31:30,849 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:31:30,849 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:31:30,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-15 23:31:30,849 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-15 23:31:30,850 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:31:30,850 INFO L85 PathProgramCache]: Analyzing trace with hash -1544378841, now seen corresponding path program 1 times [2023-12-15 23:31:30,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:31:30,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781101049] [2023-12-15 23:31:30,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:31:30,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:31:30,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:31:31,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:31:31,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:31:31,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781101049] [2023-12-15 23:31:31,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781101049] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:31:31,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:31:31,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-15 23:31:31,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968188684] [2023-12-15 23:31:31,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:31:31,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-15 23:31:31,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:31:31,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-15 23:31:31,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-15 23:31:31,265 INFO L87 Difference]: Start difference. First operand 3966 states and 5117 transitions. Second operand has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:34,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:31:34,516 INFO L93 Difference]: Finished difference Result 7947 states and 10800 transitions. [2023-12-15 23:31:34,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-15 23:31:34,517 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2023-12-15 23:31:34,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:31:34,536 INFO L225 Difference]: With dead ends: 7947 [2023-12-15 23:31:34,536 INFO L226 Difference]: Without dead ends: 7150 [2023-12-15 23:31:34,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2023-12-15 23:31:34,545 INFO L413 NwaCegarLoop]: 1161 mSDtfsCounter, 7572 mSDsluCounter, 5872 mSDsCounter, 0 mSdLazyCounter, 6781 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7572 SdHoareTripleChecker+Valid, 7033 SdHoareTripleChecker+Invalid, 6788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 6781 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-12-15 23:31:34,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7572 Valid, 7033 Invalid, 6788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 6781 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-12-15 23:31:34,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7150 states. [2023-12-15 23:31:34,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7150 to 3973. [2023-12-15 23:31:34,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3973 states, 3966 states have (on average 1.291981845688351) internal successors, (5124), 3972 states have internal predecessors, (5124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:34,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3973 states to 3973 states and 5124 transitions. [2023-12-15 23:31:34,641 INFO L78 Accepts]: Start accepts. Automaton has 3973 states and 5124 transitions. Word has length 66 [2023-12-15 23:31:34,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:31:34,641 INFO L495 AbstractCegarLoop]: Abstraction has 3973 states and 5124 transitions. [2023-12-15 23:31:34,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:34,641 INFO L276 IsEmpty]: Start isEmpty. Operand 3973 states and 5124 transitions. [2023-12-15 23:31:34,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-15 23:31:34,645 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:31:34,645 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:31:34,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-15 23:31:34,645 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-15 23:31:34,645 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:31:34,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1262167379, now seen corresponding path program 1 times [2023-12-15 23:31:34,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:31:34,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533092757] [2023-12-15 23:31:34,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:31:34,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:31:34,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:31:34,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:31:34,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:31:34,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533092757] [2023-12-15 23:31:34,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533092757] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:31:34,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:31:34,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 23:31:34,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266931560] [2023-12-15 23:31:34,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:31:34,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 23:31:34,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:31:34,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 23:31:34,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 23:31:34,764 INFO L87 Difference]: Start difference. First operand 3973 states and 5124 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:35,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:31:35,667 INFO L93 Difference]: Finished difference Result 7878 states and 10269 transitions. [2023-12-15 23:31:35,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 23:31:35,668 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2023-12-15 23:31:35,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:31:35,681 INFO L225 Difference]: With dead ends: 7878 [2023-12-15 23:31:35,682 INFO L226 Difference]: Without dead ends: 5327 [2023-12-15 23:31:35,685 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 [2023-12-15 23:31:35,685 INFO L413 NwaCegarLoop]: 918 mSDtfsCounter, 6410 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 1144 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6410 SdHoareTripleChecker+Valid, 1253 SdHoareTripleChecker+Invalid, 1175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-15 23:31:35,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6410 Valid, 1253 Invalid, 1175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1144 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-15 23:31:35,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5327 states. [2023-12-15 23:31:35,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5327 to 5317. [2023-12-15 23:31:35,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5317 states, 5310 states have (on average 1.2998116760828626) internal successors, (6902), 5316 states have internal predecessors, (6902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:35,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5317 states to 5317 states and 6902 transitions. [2023-12-15 23:31:35,767 INFO L78 Accepts]: Start accepts. Automaton has 5317 states and 6902 transitions. Word has length 67 [2023-12-15 23:31:35,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:31:35,768 INFO L495 AbstractCegarLoop]: Abstraction has 5317 states and 6902 transitions. [2023-12-15 23:31:35,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:35,768 INFO L276 IsEmpty]: Start isEmpty. Operand 5317 states and 6902 transitions. [2023-12-15 23:31:35,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-15 23:31:35,773 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:31:35,773 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:31:35,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-15 23:31:35,773 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-15 23:31:35,774 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:31:35,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1978451918, now seen corresponding path program 1 times [2023-12-15 23:31:35,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:31:35,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664269606] [2023-12-15 23:31:35,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:31:35,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:31:35,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:31:36,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:31:36,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:31:36,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664269606] [2023-12-15 23:31:36,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664269606] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:31:36,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:31:36,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 23:31:36,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136434106] [2023-12-15 23:31:36,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:31:36,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-15 23:31:36,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:31:36,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-15 23:31:36,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-15 23:31:36,049 INFO L87 Difference]: Start difference. First operand 5317 states and 6902 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:37,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:31:37,533 INFO L93 Difference]: Finished difference Result 6515 states and 8524 transitions. [2023-12-15 23:31:37,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-15 23:31:37,536 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2023-12-15 23:31:37,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:31:37,553 INFO L225 Difference]: With dead ends: 6515 [2023-12-15 23:31:37,553 INFO L226 Difference]: Without dead ends: 6509 [2023-12-15 23:31:37,556 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2023-12-15 23:31:37,556 INFO L413 NwaCegarLoop]: 941 mSDtfsCounter, 6710 mSDsluCounter, 3040 mSDsCounter, 0 mSdLazyCounter, 3441 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6710 SdHoareTripleChecker+Valid, 3981 SdHoareTripleChecker+Invalid, 3458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 3441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-15 23:31:37,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6710 Valid, 3981 Invalid, 3458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 3441 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-15 23:31:37,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6509 states. [2023-12-15 23:31:37,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6509 to 5317. [2023-12-15 23:31:37,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5317 states, 5310 states have (on average 1.299623352165725) internal successors, (6901), 5316 states have internal predecessors, (6901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:37,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5317 states to 5317 states and 6901 transitions. [2023-12-15 23:31:37,647 INFO L78 Accepts]: Start accepts. Automaton has 5317 states and 6901 transitions. Word has length 67 [2023-12-15 23:31:37,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:31:37,648 INFO L495 AbstractCegarLoop]: Abstraction has 5317 states and 6901 transitions. [2023-12-15 23:31:37,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:37,648 INFO L276 IsEmpty]: Start isEmpty. Operand 5317 states and 6901 transitions. [2023-12-15 23:31:37,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-15 23:31:37,652 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:31:37,652 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:31:37,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-15 23:31:37,653 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-15 23:31:37,653 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:31:37,653 INFO L85 PathProgramCache]: Analyzing trace with hash -396667281, now seen corresponding path program 1 times [2023-12-15 23:31:37,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:31:37,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797871740] [2023-12-15 23:31:37,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:31:37,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:31:37,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:31:38,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:31:38,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:31:38,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797871740] [2023-12-15 23:31:38,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797871740] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:31:38,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:31:38,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-15 23:31:38,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88834682] [2023-12-15 23:31:38,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:31:38,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-15 23:31:38,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:31:38,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-15 23:31:38,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-12-15 23:31:38,197 INFO L87 Difference]: Start difference. First operand 5317 states and 6901 transitions. Second operand has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 12 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:40,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:31:40,537 INFO L93 Difference]: Finished difference Result 19086 states and 27018 transitions. [2023-12-15 23:31:40,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-12-15 23:31:40,538 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 12 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2023-12-15 23:31:40,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:31:40,564 INFO L225 Difference]: With dead ends: 19086 [2023-12-15 23:31:40,564 INFO L226 Difference]: Without dead ends: 19082 [2023-12-15 23:31:40,568 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=293, Invalid=1039, Unknown=0, NotChecked=0, Total=1332 [2023-12-15 23:31:40,568 INFO L413 NwaCegarLoop]: 1770 mSDtfsCounter, 10305 mSDsluCounter, 14875 mSDsCounter, 0 mSdLazyCounter, 3200 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10305 SdHoareTripleChecker+Valid, 16645 SdHoareTripleChecker+Invalid, 3214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 3200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-15 23:31:40,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10305 Valid, 16645 Invalid, 3214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 3200 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-15 23:31:40,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19082 states. [2023-12-15 23:31:40,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19082 to 5313. [2023-12-15 23:31:40,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5313 states, 5307 states have (on average 1.299415865837573) internal successors, (6896), 5312 states have internal predecessors, (6896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:40,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5313 states to 5313 states and 6896 transitions. [2023-12-15 23:31:40,688 INFO L78 Accepts]: Start accepts. Automaton has 5313 states and 6896 transitions. Word has length 67 [2023-12-15 23:31:40,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:31:40,688 INFO L495 AbstractCegarLoop]: Abstraction has 5313 states and 6896 transitions. [2023-12-15 23:31:40,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 12 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:40,689 INFO L276 IsEmpty]: Start isEmpty. Operand 5313 states and 6896 transitions. [2023-12-15 23:31:40,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-15 23:31:40,695 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:31:40,695 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] [2023-12-15 23:31:40,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-15 23:31:40,696 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-15 23:31:40,696 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:31:40,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1679399413, now seen corresponding path program 1 times [2023-12-15 23:31:40,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:31:40,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028566399] [2023-12-15 23:31:40,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:31:40,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:31:40,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:31:40,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:31:40,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:31:40,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028566399] [2023-12-15 23:31:40,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028566399] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:31:40,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:31:40,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-15 23:31:40,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555759088] [2023-12-15 23:31:40,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:31:40,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-15 23:31:40,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:31:40,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-15 23:31:40,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-15 23:31:40,930 INFO L87 Difference]: Start difference. First operand 5313 states and 6896 transitions. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:43,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:31:43,651 INFO L93 Difference]: Finished difference Result 12220 states and 16965 transitions. [2023-12-15 23:31:43,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-15 23:31:43,651 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2023-12-15 23:31:43,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:31:43,666 INFO L225 Difference]: With dead ends: 12220 [2023-12-15 23:31:43,666 INFO L226 Difference]: Without dead ends: 10897 [2023-12-15 23:31:43,669 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=123, Invalid=383, Unknown=0, NotChecked=0, Total=506 [2023-12-15 23:31:43,671 INFO L413 NwaCegarLoop]: 1196 mSDtfsCounter, 7410 mSDsluCounter, 5258 mSDsCounter, 0 mSdLazyCounter, 5366 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7410 SdHoareTripleChecker+Valid, 6454 SdHoareTripleChecker+Invalid, 5396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 5366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-15 23:31:43,671 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7410 Valid, 6454 Invalid, 5396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 5366 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-15 23:31:43,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10897 states. [2023-12-15 23:31:43,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10897 to 5292. [2023-12-15 23:31:43,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5292 states, 5286 states have (on average 1.2996594778660613) internal successors, (6870), 5291 states have internal predecessors, (6870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:43,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5292 states to 5292 states and 6870 transitions. [2023-12-15 23:31:43,755 INFO L78 Accepts]: Start accepts. Automaton has 5292 states and 6870 transitions. Word has length 68 [2023-12-15 23:31:43,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:31:43,755 INFO L495 AbstractCegarLoop]: Abstraction has 5292 states and 6870 transitions. [2023-12-15 23:31:43,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:43,755 INFO L276 IsEmpty]: Start isEmpty. Operand 5292 states and 6870 transitions. [2023-12-15 23:31:43,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-15 23:31:43,759 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:31:43,760 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] [2023-12-15 23:31:43,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-15 23:31:43,760 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-15 23:31:43,760 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:31:43,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1296136613, now seen corresponding path program 1 times [2023-12-15 23:31:43,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:31:43,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923559518] [2023-12-15 23:31:43,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:31:43,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:31:43,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:31:44,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:31:44,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:31:44,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923559518] [2023-12-15 23:31:44,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923559518] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:31:44,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:31:44,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-15 23:31:44,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982883194] [2023-12-15 23:31:44,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:31:44,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-15 23:31:44,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:31:44,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-15 23:31:44,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2023-12-15 23:31:44,229 INFO L87 Difference]: Start difference. First operand 5292 states and 6870 transitions. Second operand has 14 states, 14 states have (on average 4.857142857142857) internal successors, (68), 13 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:46,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:31:46,755 INFO L93 Difference]: Finished difference Result 22739 states and 32539 transitions. [2023-12-15 23:31:46,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-15 23:31:46,756 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.857142857142857) internal successors, (68), 13 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2023-12-15 23:31:46,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:31:46,788 INFO L225 Difference]: With dead ends: 22739 [2023-12-15 23:31:46,788 INFO L226 Difference]: Without dead ends: 21392 [2023-12-15 23:31:46,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 344 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=356, Invalid=1204, Unknown=0, NotChecked=0, Total=1560 [2023-12-15 23:31:46,799 INFO L413 NwaCegarLoop]: 1988 mSDtfsCounter, 17902 mSDsluCounter, 13093 mSDsCounter, 0 mSdLazyCounter, 2425 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17902 SdHoareTripleChecker+Valid, 15081 SdHoareTripleChecker+Invalid, 2454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 2425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-15 23:31:46,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17902 Valid, 15081 Invalid, 2454 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [29 Valid, 2425 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-15 23:31:46,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21392 states. [2023-12-15 23:31:46,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21392 to 5243. [2023-12-15 23:31:46,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5243 states, 5238 states have (on average 1.3010691103474608) internal successors, (6815), 5242 states have internal predecessors, (6815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:46,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5243 states to 5243 states and 6815 transitions. [2023-12-15 23:31:46,930 INFO L78 Accepts]: Start accepts. Automaton has 5243 states and 6815 transitions. Word has length 68 [2023-12-15 23:31:46,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:31:46,931 INFO L495 AbstractCegarLoop]: Abstraction has 5243 states and 6815 transitions. [2023-12-15 23:31:46,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.857142857142857) internal successors, (68), 13 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:46,931 INFO L276 IsEmpty]: Start isEmpty. Operand 5243 states and 6815 transitions. [2023-12-15 23:31:46,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-15 23:31:46,934 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:31:46,935 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:31:46,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-15 23:31:46,935 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-15 23:31:46,935 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:31:46,935 INFO L85 PathProgramCache]: Analyzing trace with hash 479527467, now seen corresponding path program 1 times [2023-12-15 23:31:46,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:31:46,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447926111] [2023-12-15 23:31:46,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:31:46,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:31:46,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:31:47,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:31:47,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:31:47,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447926111] [2023-12-15 23:31:47,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447926111] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:31:47,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:31:47,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-15 23:31:47,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796423932] [2023-12-15 23:31:47,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:31:47,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-15 23:31:47,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:31:47,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-15 23:31:47,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-12-15 23:31:47,375 INFO L87 Difference]: Start difference. First operand 5243 states and 6815 transitions. Second operand has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 12 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:49,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:31:49,844 INFO L93 Difference]: Finished difference Result 19146 states and 26972 transitions. [2023-12-15 23:31:49,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-12-15 23:31:49,845 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 12 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2023-12-15 23:31:49,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:31:49,866 INFO L225 Difference]: With dead ends: 19146 [2023-12-15 23:31:49,867 INFO L226 Difference]: Without dead ends: 17820 [2023-12-15 23:31:49,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=324, Invalid=866, Unknown=0, NotChecked=0, Total=1190 [2023-12-15 23:31:49,874 INFO L413 NwaCegarLoop]: 1847 mSDtfsCounter, 12994 mSDsluCounter, 9521 mSDsCounter, 0 mSdLazyCounter, 2148 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12994 SdHoareTripleChecker+Valid, 11368 SdHoareTripleChecker+Invalid, 2150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-15 23:31:49,874 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12994 Valid, 11368 Invalid, 2150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2148 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-15 23:31:49,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17820 states. [2023-12-15 23:31:49,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17820 to 5253. [2023-12-15 23:31:49,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5253 states, 5248 states have (on average 1.3010670731707317) internal successors, (6828), 5252 states have internal predecessors, (6828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:49,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5253 states to 5253 states and 6828 transitions. [2023-12-15 23:31:49,983 INFO L78 Accepts]: Start accepts. Automaton has 5253 states and 6828 transitions. Word has length 69 [2023-12-15 23:31:49,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:31:49,983 INFO L495 AbstractCegarLoop]: Abstraction has 5253 states and 6828 transitions. [2023-12-15 23:31:49,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 12 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:49,984 INFO L276 IsEmpty]: Start isEmpty. Operand 5253 states and 6828 transitions. [2023-12-15 23:31:49,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-15 23:31:49,992 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:31:49,992 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:31:49,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-15 23:31:49,992 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-15 23:31:49,993 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:31:49,993 INFO L85 PathProgramCache]: Analyzing trace with hash 1779915904, now seen corresponding path program 1 times [2023-12-15 23:31:49,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:31:49,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978860170] [2023-12-15 23:31:49,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:31:49,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:31:50,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:31:50,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:31:50,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:31:50,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978860170] [2023-12-15 23:31:50,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978860170] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:31:50,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:31:50,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 23:31:50,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856357497] [2023-12-15 23:31:50,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:31:50,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 23:31:50,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:31:50,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 23:31:50,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:31:50,041 INFO L87 Difference]: Start difference. First operand 5253 states and 6828 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:50,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:31:50,197 INFO L93 Difference]: Finished difference Result 10480 states and 13783 transitions. [2023-12-15 23:31:50,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 23:31:50,198 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2023-12-15 23:31:50,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:31:50,205 INFO L225 Difference]: With dead ends: 10480 [2023-12-15 23:31:50,205 INFO L226 Difference]: Without dead ends: 6396 [2023-12-15 23:31:50,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:31:50,210 INFO L413 NwaCegarLoop]: 1556 mSDtfsCounter, 1557 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1557 SdHoareTripleChecker+Valid, 2090 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 23:31:50,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1557 Valid, 2090 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 23:31:50,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6396 states. [2023-12-15 23:31:50,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6396 to 6385. [2023-12-15 23:31:50,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6385 states, 6381 states have (on average 1.3015201379094186) internal successors, (8305), 6384 states have internal predecessors, (8305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:50,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6385 states to 6385 states and 8305 transitions. [2023-12-15 23:31:50,295 INFO L78 Accepts]: Start accepts. Automaton has 6385 states and 8305 transitions. Word has length 70 [2023-12-15 23:31:50,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:31:50,296 INFO L495 AbstractCegarLoop]: Abstraction has 6385 states and 8305 transitions. [2023-12-15 23:31:50,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:50,296 INFO L276 IsEmpty]: Start isEmpty. Operand 6385 states and 8305 transitions. [2023-12-15 23:31:50,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-15 23:31:50,300 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:31:50,300 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:31:50,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-15 23:31:50,302 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)] === [2023-12-15 23:31:50,302 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:31:50,302 INFO L85 PathProgramCache]: Analyzing trace with hash 912265829, now seen corresponding path program 1 times [2023-12-15 23:31:50,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:31:50,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964299845] [2023-12-15 23:31:50,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:31:50,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:31:50,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:31:50,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:31:50,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:31:50,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964299845] [2023-12-15 23:31:50,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964299845] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:31:50,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:31:50,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 23:31:50,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98093468] [2023-12-15 23:31:50,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:31:50,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 23:31:50,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:31:50,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 23:31:50,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:31:50,344 INFO L87 Difference]: Start difference. First operand 6385 states and 8305 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:50,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:31:50,414 INFO L93 Difference]: Finished difference Result 10223 states and 13764 transitions. [2023-12-15 23:31:50,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 23:31:50,414 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2023-12-15 23:31:50,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:31:50,422 INFO L225 Difference]: With dead ends: 10223 [2023-12-15 23:31:50,422 INFO L226 Difference]: Without dead ends: 6204 [2023-12-15 23:31:50,427 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 [2023-12-15 23:31:50,428 INFO L413 NwaCegarLoop]: 1220 mSDtfsCounter, 1194 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1194 SdHoareTripleChecker+Valid, 1675 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 23:31:50,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1194 Valid, 1675 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 23:31:50,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6204 states. [2023-12-15 23:31:50,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6204 to 6191. [2023-12-15 23:31:50,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6191 states, 6188 states have (on average 1.3413057530704589) internal successors, (8300), 6190 states have internal predecessors, (8300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:50,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6191 states to 6191 states and 8300 transitions. [2023-12-15 23:31:50,490 INFO L78 Accepts]: Start accepts. Automaton has 6191 states and 8300 transitions. Word has length 70 [2023-12-15 23:31:50,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:31:50,490 INFO L495 AbstractCegarLoop]: Abstraction has 6191 states and 8300 transitions. [2023-12-15 23:31:50,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:50,491 INFO L276 IsEmpty]: Start isEmpty. Operand 6191 states and 8300 transitions. [2023-12-15 23:31:50,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-15 23:31:50,494 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:31:50,494 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:31:50,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-15 23:31:50,494 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-15 23:31:50,494 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:31:50,495 INFO L85 PathProgramCache]: Analyzing trace with hash -1909306532, now seen corresponding path program 1 times [2023-12-15 23:31:50,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:31:50,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525468144] [2023-12-15 23:31:50,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:31:50,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:31:50,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:31:50,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:31:50,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:31:50,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525468144] [2023-12-15 23:31:50,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525468144] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:31:50,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:31:50,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 23:31:50,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153920241] [2023-12-15 23:31:50,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:31:50,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-15 23:31:50,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:31:50,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-15 23:31:50,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-15 23:31:50,666 INFO L87 Difference]: Start difference. First operand 6191 states and 8300 transitions. Second operand has 8 states, 8 states have (on average 8.75) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:52,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:31:52,078 INFO L93 Difference]: Finished difference Result 10962 states and 14955 transitions. [2023-12-15 23:31:52,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-15 23:31:52,080 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2023-12-15 23:31:52,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:31:52,093 INFO L225 Difference]: With dead ends: 10962 [2023-12-15 23:31:52,093 INFO L226 Difference]: Without dead ends: 10953 [2023-12-15 23:31:52,095 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2023-12-15 23:31:52,096 INFO L413 NwaCegarLoop]: 775 mSDtfsCounter, 4107 mSDsluCounter, 2973 mSDsCounter, 0 mSdLazyCounter, 3305 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4107 SdHoareTripleChecker+Valid, 3748 SdHoareTripleChecker+Invalid, 3336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 3305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-15 23:31:52,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4107 Valid, 3748 Invalid, 3336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 3305 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-15 23:31:52,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10953 states. [2023-12-15 23:31:52,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10953 to 6191. [2023-12-15 23:31:52,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6191 states, 6188 states have (on average 1.3411441499676793) internal successors, (8299), 6190 states have internal predecessors, (8299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:52,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6191 states to 6191 states and 8299 transitions. [2023-12-15 23:31:52,177 INFO L78 Accepts]: Start accepts. Automaton has 6191 states and 8299 transitions. Word has length 70 [2023-12-15 23:31:52,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:31:52,177 INFO L495 AbstractCegarLoop]: Abstraction has 6191 states and 8299 transitions. [2023-12-15 23:31:52,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:52,178 INFO L276 IsEmpty]: Start isEmpty. Operand 6191 states and 8299 transitions. [2023-12-15 23:31:52,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-15 23:31:52,181 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:31:52,181 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:31:52,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-15 23:31:52,182 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-15 23:31:52,182 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:31:52,182 INFO L85 PathProgramCache]: Analyzing trace with hash -902166453, now seen corresponding path program 1 times [2023-12-15 23:31:52,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:31:52,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43304356] [2023-12-15 23:31:52,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:31:52,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:31:52,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:31:52,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:31:52,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:31:52,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43304356] [2023-12-15 23:31:52,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43304356] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:31:52,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:31:52,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-15 23:31:52,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620557998] [2023-12-15 23:31:52,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:31:52,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-15 23:31:52,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:31:52,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-15 23:31:52,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2023-12-15 23:31:52,658 INFO L87 Difference]: Start difference. First operand 6191 states and 8299 transitions. Second operand has 14 states, 14 states have (on average 5.071428571428571) internal successors, (71), 13 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:55,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:31:55,191 INFO L93 Difference]: Finished difference Result 39056 states and 56849 transitions. [2023-12-15 23:31:55,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-15 23:31:55,192 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.071428571428571) internal successors, (71), 13 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2023-12-15 23:31:55,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:31:55,229 INFO L225 Difference]: With dead ends: 39056 [2023-12-15 23:31:55,229 INFO L226 Difference]: Without dead ends: 39044 [2023-12-15 23:31:55,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=345, Invalid=1215, Unknown=0, NotChecked=0, Total=1560 [2023-12-15 23:31:55,236 INFO L413 NwaCegarLoop]: 1449 mSDtfsCounter, 13402 mSDsluCounter, 9545 mSDsCounter, 0 mSdLazyCounter, 1994 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13402 SdHoareTripleChecker+Valid, 10994 SdHoareTripleChecker+Invalid, 2019 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-15 23:31:55,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13402 Valid, 10994 Invalid, 2019 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1994 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-15 23:31:55,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39044 states. [2023-12-15 23:31:55,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39044 to 6179. [2023-12-15 23:31:55,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6179 states, 6177 states have (on average 1.3415897684960336) internal successors, (8287), 6178 states have internal predecessors, (8287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:55,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6179 states to 6179 states and 8287 transitions. [2023-12-15 23:31:55,413 INFO L78 Accepts]: Start accepts. Automaton has 6179 states and 8287 transitions. Word has length 71 [2023-12-15 23:31:55,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:31:55,413 INFO L495 AbstractCegarLoop]: Abstraction has 6179 states and 8287 transitions. [2023-12-15 23:31:55,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.071428571428571) internal successors, (71), 13 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:55,414 INFO L276 IsEmpty]: Start isEmpty. Operand 6179 states and 8287 transitions. [2023-12-15 23:31:55,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-15 23:31:55,417 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:31:55,417 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:31:55,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-15 23:31:55,418 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-15 23:31:55,419 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:31:55,419 INFO L85 PathProgramCache]: Analyzing trace with hash -1452369226, now seen corresponding path program 1 times [2023-12-15 23:31:55,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:31:55,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784941959] [2023-12-15 23:31:55,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:31:55,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:31:55,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:31:55,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:31:55,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:31:55,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784941959] [2023-12-15 23:31:55,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784941959] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:31:55,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:31:55,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-15 23:31:55,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449441562] [2023-12-15 23:31:55,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:31:55,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-15 23:31:55,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:31:55,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-15 23:31:55,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-15 23:31:55,631 INFO L87 Difference]: Start difference. First operand 6179 states and 8287 transitions. Second operand has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:57,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:31:57,275 INFO L93 Difference]: Finished difference Result 14310 states and 20257 transitions. [2023-12-15 23:31:57,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 23:31:57,276 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2023-12-15 23:31:57,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:31:57,285 INFO L225 Difference]: With dead ends: 14310 [2023-12-15 23:31:57,285 INFO L226 Difference]: Without dead ends: 11015 [2023-12-15 23:31:57,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2023-12-15 23:31:57,294 INFO L413 NwaCegarLoop]: 740 mSDtfsCounter, 4673 mSDsluCounter, 3387 mSDsCounter, 0 mSdLazyCounter, 3512 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4673 SdHoareTripleChecker+Valid, 4127 SdHoareTripleChecker+Invalid, 3517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 3512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-15 23:31:57,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4673 Valid, 4127 Invalid, 3517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 3512 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-15 23:31:57,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11015 states. [2023-12-15 23:31:57,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11015 to 6179. [2023-12-15 23:31:57,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6179 states, 6177 states have (on average 1.3414278776104904) internal successors, (8286), 6178 states have internal predecessors, (8286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:57,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6179 states to 6179 states and 8286 transitions. [2023-12-15 23:31:57,382 INFO L78 Accepts]: Start accepts. Automaton has 6179 states and 8286 transitions. Word has length 71 [2023-12-15 23:31:57,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:31:57,382 INFO L495 AbstractCegarLoop]: Abstraction has 6179 states and 8286 transitions. [2023-12-15 23:31:57,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:57,382 INFO L276 IsEmpty]: Start isEmpty. Operand 6179 states and 8286 transitions. [2023-12-15 23:31:57,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-15 23:31:57,386 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:31:57,386 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:31:57,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-15 23:31:57,386 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-15 23:31:57,387 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:31:57,387 INFO L85 PathProgramCache]: Analyzing trace with hash 1101201042, now seen corresponding path program 1 times [2023-12-15 23:31:57,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:31:57,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828944934] [2023-12-15 23:31:57,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:31:57,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:31:57,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:31:57,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:31:57,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:31:57,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828944934] [2023-12-15 23:31:57,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828944934] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:31:57,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:31:57,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 23:31:57,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416410394] [2023-12-15 23:31:57,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:31:57,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 23:31:57,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:31:57,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 23:31:57,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:31:57,459 INFO L87 Difference]: Start difference. First operand 6179 states and 8286 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:57,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:31:57,522 INFO L93 Difference]: Finished difference Result 11738 states and 16578 transitions. [2023-12-15 23:31:57,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 23:31:57,522 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 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 72 [2023-12-15 23:31:57,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:31:57,529 INFO L225 Difference]: With dead ends: 11738 [2023-12-15 23:31:57,529 INFO L226 Difference]: Without dead ends: 8019 [2023-12-15 23:31:57,533 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 [2023-12-15 23:31:57,533 INFO L413 NwaCegarLoop]: 1303 mSDtfsCounter, 759 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 759 SdHoareTripleChecker+Valid, 1838 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 23:31:57,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [759 Valid, 1838 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 23:31:57,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8019 states. [2023-12-15 23:31:57,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8019 to 8017. [2023-12-15 23:31:57,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8017 states, 8015 states have (on average 1.3840299438552714) internal successors, (11093), 8016 states have internal predecessors, (11093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:57,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8017 states to 8017 states and 11093 transitions. [2023-12-15 23:31:57,606 INFO L78 Accepts]: Start accepts. Automaton has 8017 states and 11093 transitions. Word has length 72 [2023-12-15 23:31:57,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:31:57,606 INFO L495 AbstractCegarLoop]: Abstraction has 8017 states and 11093 transitions. [2023-12-15 23:31:57,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:57,607 INFO L276 IsEmpty]: Start isEmpty. Operand 8017 states and 11093 transitions. [2023-12-15 23:31:57,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-15 23:31:57,610 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:31:57,610 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] [2023-12-15 23:31:57,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-15 23:31:57,610 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-15 23:31:57,610 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:31:57,610 INFO L85 PathProgramCache]: Analyzing trace with hash 457049012, now seen corresponding path program 1 times [2023-12-15 23:31:57,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:31:57,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967135109] [2023-12-15 23:31:57,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:31:57,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:31:57,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:31:57,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:31:57,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:31:57,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967135109] [2023-12-15 23:31:57,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967135109] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:31:57,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:31:57,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-15 23:31:57,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063155084] [2023-12-15 23:31:57,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:31:57,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-15 23:31:57,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:31:57,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-15 23:31:57,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-15 23:31:57,807 INFO L87 Difference]: Start difference. First operand 8017 states and 11093 transitions. Second operand has 9 states, 9 states have (on average 8.0) internal successors, (72), 8 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:59,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:31:59,703 INFO L93 Difference]: Finished difference Result 17535 states and 24730 transitions. [2023-12-15 23:31:59,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-15 23:31:59,704 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.0) internal successors, (72), 8 states have internal predecessors, (72), 0 states have call successors, (0), 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 72 [2023-12-15 23:31:59,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:31:59,721 INFO L225 Difference]: With dead ends: 17535 [2023-12-15 23:31:59,721 INFO L226 Difference]: Without dead ends: 16024 [2023-12-15 23:31:59,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=123, Invalid=383, Unknown=0, NotChecked=0, Total=506 [2023-12-15 23:31:59,727 INFO L413 NwaCegarLoop]: 893 mSDtfsCounter, 4970 mSDsluCounter, 3968 mSDsCounter, 0 mSdLazyCounter, 3811 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4970 SdHoareTripleChecker+Valid, 4861 SdHoareTripleChecker+Invalid, 3834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 3811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-15 23:31:59,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4970 Valid, 4861 Invalid, 3834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 3811 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-15 23:31:59,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16024 states. [2023-12-15 23:31:59,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16024 to 8017. [2023-12-15 23:31:59,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8017 states, 8015 states have (on average 1.3839051777916407) internal successors, (11092), 8016 states have internal predecessors, (11092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:59,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8017 states to 8017 states and 11092 transitions. [2023-12-15 23:31:59,848 INFO L78 Accepts]: Start accepts. Automaton has 8017 states and 11092 transitions. Word has length 72 [2023-12-15 23:31:59,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:31:59,848 INFO L495 AbstractCegarLoop]: Abstraction has 8017 states and 11092 transitions. [2023-12-15 23:31:59,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.0) internal successors, (72), 8 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:59,849 INFO L276 IsEmpty]: Start isEmpty. Operand 8017 states and 11092 transitions. [2023-12-15 23:31:59,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-15 23:31:59,851 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:31:59,852 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] [2023-12-15 23:31:59,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-15 23:31:59,852 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-15 23:31:59,852 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:31:59,852 INFO L85 PathProgramCache]: Analyzing trace with hash -501754829, now seen corresponding path program 1 times [2023-12-15 23:31:59,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:31:59,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825284551] [2023-12-15 23:31:59,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:31:59,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:31:59,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:32:00,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:32:00,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:32:00,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825284551] [2023-12-15 23:32:00,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825284551] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:32:00,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:32:00,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 23:32:00,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244009609] [2023-12-15 23:32:00,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:32:00,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-15 23:32:00,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:32:00,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-15 23:32:00,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-15 23:32:00,051 INFO L87 Difference]: Start difference. First operand 8017 states and 11092 transitions. Second operand has 8 states, 8 states have (on average 9.0) internal successors, (72), 7 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:01,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:32:01,589 INFO L93 Difference]: Finished difference Result 18653 states and 26247 transitions. [2023-12-15 23:32:01,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 23:32:01,589 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 7 states have internal predecessors, (72), 0 states have call successors, (0), 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 72 [2023-12-15 23:32:01,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:32:01,614 INFO L225 Difference]: With dead ends: 18653 [2023-12-15 23:32:01,615 INFO L226 Difference]: Without dead ends: 17214 [2023-12-15 23:32:01,623 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-12-15 23:32:01,626 INFO L413 NwaCegarLoop]: 867 mSDtfsCounter, 4312 mSDsluCounter, 3248 mSDsCounter, 0 mSdLazyCounter, 3477 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4312 SdHoareTripleChecker+Valid, 4115 SdHoareTripleChecker+Invalid, 3504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 3477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-15 23:32:01,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4312 Valid, 4115 Invalid, 3504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 3477 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-15 23:32:01,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17214 states. [2023-12-15 23:32:01,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17214 to 8017. [2023-12-15 23:32:01,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8017 states, 8015 states have (on average 1.38378041172801) internal successors, (11091), 8016 states have internal predecessors, (11091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:01,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8017 states to 8017 states and 11091 transitions. [2023-12-15 23:32:01,752 INFO L78 Accepts]: Start accepts. Automaton has 8017 states and 11091 transitions. Word has length 72 [2023-12-15 23:32:01,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:32:01,753 INFO L495 AbstractCegarLoop]: Abstraction has 8017 states and 11091 transitions. [2023-12-15 23:32:01,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 7 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:01,753 INFO L276 IsEmpty]: Start isEmpty. Operand 8017 states and 11091 transitions. [2023-12-15 23:32:01,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-15 23:32:01,756 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:32:01,756 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:32:01,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-15 23:32:01,756 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-15 23:32:01,757 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:32:01,757 INFO L85 PathProgramCache]: Analyzing trace with hash -285849865, now seen corresponding path program 1 times [2023-12-15 23:32:01,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:32:01,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790741300] [2023-12-15 23:32:01,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:32:01,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:32:01,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:32:01,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:32:01,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:32:01,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790741300] [2023-12-15 23:32:01,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790741300] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:32:01,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:32:01,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 23:32:01,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84212640] [2023-12-15 23:32:01,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:32:01,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 23:32:01,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:32:01,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 23:32:01,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:32:01,814 INFO L87 Difference]: Start difference. First operand 8017 states and 11091 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:01,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:32:01,877 INFO L93 Difference]: Finished difference Result 16479 states and 23672 transitions. [2023-12-15 23:32:01,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 23:32:01,878 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2023-12-15 23:32:01,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:32:01,887 INFO L225 Difference]: With dead ends: 16479 [2023-12-15 23:32:01,887 INFO L226 Difference]: Without dead ends: 10687 [2023-12-15 23:32:01,893 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 [2023-12-15 23:32:01,894 INFO L413 NwaCegarLoop]: 1244 mSDtfsCounter, 719 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 719 SdHoareTripleChecker+Valid, 1803 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 23:32:01,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [719 Valid, 1803 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 23:32:01,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10687 states. [2023-12-15 23:32:01,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10687 to 8591. [2023-12-15 23:32:01,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8591 states, 8589 states have (on average 1.4058679706601467) internal successors, (12075), 8590 states have internal predecessors, (12075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:01,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8591 states to 8591 states and 12075 transitions. [2023-12-15 23:32:01,970 INFO L78 Accepts]: Start accepts. Automaton has 8591 states and 12075 transitions. Word has length 73 [2023-12-15 23:32:01,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:32:01,970 INFO L495 AbstractCegarLoop]: Abstraction has 8591 states and 12075 transitions. [2023-12-15 23:32:01,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:01,970 INFO L276 IsEmpty]: Start isEmpty. Operand 8591 states and 12075 transitions. [2023-12-15 23:32:01,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-15 23:32:01,972 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:32:01,972 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:32:01,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-15 23:32:01,973 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-15 23:32:01,973 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:32:01,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1153775987, now seen corresponding path program 1 times [2023-12-15 23:32:01,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:32:01,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616777093] [2023-12-15 23:32:01,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:32:01,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:32:01,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:32:02,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:32:02,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:32:02,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616777093] [2023-12-15 23:32:02,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616777093] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:32:02,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:32:02,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 23:32:02,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479102879] [2023-12-15 23:32:02,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:32:02,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 23:32:02,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:32:02,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 23:32:02,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:32:02,016 INFO L87 Difference]: Start difference. First operand 8591 states and 12075 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:02,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:32:02,094 INFO L93 Difference]: Finished difference Result 21969 states and 31419 transitions. [2023-12-15 23:32:02,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 23:32:02,094 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2023-12-15 23:32:02,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:32:02,109 INFO L225 Difference]: With dead ends: 21969 [2023-12-15 23:32:02,109 INFO L226 Difference]: Without dead ends: 14913 [2023-12-15 23:32:02,118 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 [2023-12-15 23:32:02,119 INFO L413 NwaCegarLoop]: 1326 mSDtfsCounter, 766 mSDsluCounter, 998 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 766 SdHoareTripleChecker+Valid, 2324 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 23:32:02,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [766 Valid, 2324 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 23:32:02,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14913 states. [2023-12-15 23:32:02,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14913 to 14911. [2023-12-15 23:32:02,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14911 states, 14909 states have (on average 1.4026426990408478) internal successors, (20912), 14910 states have internal predecessors, (20912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:02,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14911 states to 14911 states and 20912 transitions. [2023-12-15 23:32:02,291 INFO L78 Accepts]: Start accepts. Automaton has 14911 states and 20912 transitions. Word has length 73 [2023-12-15 23:32:02,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:32:02,291 INFO L495 AbstractCegarLoop]: Abstraction has 14911 states and 20912 transitions. [2023-12-15 23:32:02,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:02,291 INFO L276 IsEmpty]: Start isEmpty. Operand 14911 states and 20912 transitions. [2023-12-15 23:32:02,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-15 23:32:02,295 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:32:02,295 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] [2023-12-15 23:32:02,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-15 23:32:02,296 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-15 23:32:02,297 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:32:02,297 INFO L85 PathProgramCache]: Analyzing trace with hash -571162426, now seen corresponding path program 1 times [2023-12-15 23:32:02,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:32:02,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446513849] [2023-12-15 23:32:02,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:32:02,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:32:02,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:32:02,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:32:02,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:32:02,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446513849] [2023-12-15 23:32:02,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446513849] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:32:02,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:32:02,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 23:32:02,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730039857] [2023-12-15 23:32:02,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:32:02,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 23:32:02,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:32:02,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 23:32:02,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:32:02,348 INFO L87 Difference]: Start difference. First operand 14911 states and 20912 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:02,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:32:02,461 INFO L93 Difference]: Finished difference Result 31032 states and 44080 transitions. [2023-12-15 23:32:02,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 23:32:02,462 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2023-12-15 23:32:02,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:32:02,482 INFO L225 Difference]: With dead ends: 31032 [2023-12-15 23:32:02,482 INFO L226 Difference]: Without dead ends: 17129 [2023-12-15 23:32:02,498 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 [2023-12-15 23:32:02,498 INFO L413 NwaCegarLoop]: 1159 mSDtfsCounter, 1106 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1106 SdHoareTripleChecker+Valid, 1572 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 23:32:02,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1106 Valid, 1572 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 23:32:02,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17129 states. [2023-12-15 23:32:02,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17129 to 13723. [2023-12-15 23:32:02,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13723 states, 13721 states have (on average 1.4171707601486772) internal successors, (19445), 13722 states have internal predecessors, (19445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:02,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13723 states to 13723 states and 19445 transitions. [2023-12-15 23:32:02,652 INFO L78 Accepts]: Start accepts. Automaton has 13723 states and 19445 transitions. Word has length 74 [2023-12-15 23:32:02,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:32:02,652 INFO L495 AbstractCegarLoop]: Abstraction has 13723 states and 19445 transitions. [2023-12-15 23:32:02,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:02,653 INFO L276 IsEmpty]: Start isEmpty. Operand 13723 states and 19445 transitions. [2023-12-15 23:32:02,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-15 23:32:02,655 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:32:02,655 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:32:02,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-15 23:32:02,655 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-15 23:32:02,656 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:32:02,656 INFO L85 PathProgramCache]: Analyzing trace with hash -312693235, now seen corresponding path program 1 times [2023-12-15 23:32:02,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:32:02,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242231797] [2023-12-15 23:32:02,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:32:02,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:32:02,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:32:02,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:32:02,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:32:02,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242231797] [2023-12-15 23:32:02,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242231797] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:32:02,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:32:02,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-15 23:32:02,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561432533] [2023-12-15 23:32:02,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:32:02,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-15 23:32:02,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:32:02,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-15 23:32:02,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2023-12-15 23:32:02,966 INFO L87 Difference]: Start difference. First operand 13723 states and 19445 transitions. Second operand has 12 states, 12 states have (on average 6.166666666666667) internal successors, (74), 11 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) [2023-12-15 23:32:06,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:32:06,121 INFO L93 Difference]: Finished difference Result 62934 states and 89691 transitions. [2023-12-15 23:32:06,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2023-12-15 23:32:06,123 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.166666666666667) internal successors, (74), 11 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 [2023-12-15 23:32:06,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:32:06,201 INFO L225 Difference]: With dead ends: 62934 [2023-12-15 23:32:06,201 INFO L226 Difference]: Without dead ends: 62642 [2023-12-15 23:32:06,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 872 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=655, Invalid=2101, Unknown=0, NotChecked=0, Total=2756 [2023-12-15 23:32:06,226 INFO L413 NwaCegarLoop]: 1168 mSDtfsCounter, 9910 mSDsluCounter, 4662 mSDsCounter, 0 mSdLazyCounter, 4776 mSolverCounterSat, 193 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9910 SdHoareTripleChecker+Valid, 5830 SdHoareTripleChecker+Invalid, 4969 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 193 IncrementalHoareTripleChecker+Valid, 4776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-15 23:32:06,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9910 Valid, 5830 Invalid, 4969 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [193 Valid, 4776 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-15 23:32:06,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62642 states. [2023-12-15 23:32:06,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62642 to 13723. [2023-12-15 23:32:06,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13723 states, 13721 states have (on average 1.4170978791633262) internal successors, (19444), 13722 states have internal predecessors, (19444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:06,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13723 states to 13723 states and 19444 transitions. [2023-12-15 23:32:06,689 INFO L78 Accepts]: Start accepts. Automaton has 13723 states and 19444 transitions. Word has length 74 [2023-12-15 23:32:06,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:32:06,690 INFO L495 AbstractCegarLoop]: Abstraction has 13723 states and 19444 transitions. [2023-12-15 23:32:06,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.166666666666667) internal successors, (74), 11 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) [2023-12-15 23:32:06,690 INFO L276 IsEmpty]: Start isEmpty. Operand 13723 states and 19444 transitions. [2023-12-15 23:32:06,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-15 23:32:06,692 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:32:06,692 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] [2023-12-15 23:32:06,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-15 23:32:06,692 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-15 23:32:06,693 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:32:06,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1981166582, now seen corresponding path program 1 times [2023-12-15 23:32:06,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:32:06,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127776558] [2023-12-15 23:32:06,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:32:06,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:32:06,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:32:06,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:32:06,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:32:06,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127776558] [2023-12-15 23:32:06,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127776558] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:32:06,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:32:06,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 23:32:06,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406344060] [2023-12-15 23:32:06,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:32:06,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-15 23:32:06,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:32:06,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-15 23:32:06,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-15 23:32:06,846 INFO L87 Difference]: Start difference. First operand 13723 states and 19444 transitions. Second operand has 8 states, 8 states have (on average 9.25) internal successors, (74), 7 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) [2023-12-15 23:32:07,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:32:07,959 INFO L93 Difference]: Finished difference Result 18036 states and 25403 transitions. [2023-12-15 23:32:07,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 23:32:07,959 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 7 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 [2023-12-15 23:32:07,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:32:07,979 INFO L225 Difference]: With dead ends: 18036 [2023-12-15 23:32:07,979 INFO L226 Difference]: Without dead ends: 17820 [2023-12-15 23:32:07,985 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2023-12-15 23:32:07,985 INFO L413 NwaCegarLoop]: 692 mSDtfsCounter, 4616 mSDsluCounter, 2214 mSDsCounter, 0 mSdLazyCounter, 2374 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4616 SdHoareTripleChecker+Valid, 2906 SdHoareTripleChecker+Invalid, 2390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 2374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-15 23:32:07,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4616 Valid, 2906 Invalid, 2390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 2374 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-15 23:32:07,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17820 states. [2023-12-15 23:32:08,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17820 to 13718. [2023-12-15 23:32:08,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13718 states, 13716 states have (on average 1.4169582968795567) internal successors, (19435), 13717 states have internal predecessors, (19435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:08,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13718 states to 13718 states and 19435 transitions. [2023-12-15 23:32:08,132 INFO L78 Accepts]: Start accepts. Automaton has 13718 states and 19435 transitions. Word has length 74 [2023-12-15 23:32:08,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:32:08,132 INFO L495 AbstractCegarLoop]: Abstraction has 13718 states and 19435 transitions. [2023-12-15 23:32:08,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 7 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) [2023-12-15 23:32:08,132 INFO L276 IsEmpty]: Start isEmpty. Operand 13718 states and 19435 transitions. [2023-12-15 23:32:08,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-15 23:32:08,135 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:32:08,135 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:32:08,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-15 23:32:08,135 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-15 23:32:08,135 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:32:08,135 INFO L85 PathProgramCache]: Analyzing trace with hash 4590360, now seen corresponding path program 1 times [2023-12-15 23:32:08,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:32:08,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897096358] [2023-12-15 23:32:08,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:32:08,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:32:08,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:32:08,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:32:08,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:32:08,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897096358] [2023-12-15 23:32:08,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897096358] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:32:08,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:32:08,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 23:32:08,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064489845] [2023-12-15 23:32:08,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:32:08,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-15 23:32:08,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:32:08,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-15 23:32:08,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-15 23:32:08,384 INFO L87 Difference]: Start difference. First operand 13718 states and 19435 transitions. Second operand has 8 states, 8 states have (on average 9.375) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:09,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:32:09,430 INFO L93 Difference]: Finished difference Result 20922 states and 29593 transitions. [2023-12-15 23:32:09,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 23:32:09,430 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2023-12-15 23:32:09,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:32:09,451 INFO L225 Difference]: With dead ends: 20922 [2023-12-15 23:32:09,451 INFO L226 Difference]: Without dead ends: 20708 [2023-12-15 23:32:09,458 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2023-12-15 23:32:09,458 INFO L413 NwaCegarLoop]: 712 mSDtfsCounter, 3758 mSDsluCounter, 2243 mSDsCounter, 0 mSdLazyCounter, 2347 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3758 SdHoareTripleChecker+Valid, 2955 SdHoareTripleChecker+Invalid, 2362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-15 23:32:09,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3758 Valid, 2955 Invalid, 2362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 2347 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-15 23:32:09,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20708 states. [2023-12-15 23:32:09,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20708 to 13718. [2023-12-15 23:32:09,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13718 states, 13716 states have (on average 1.4168853893263342) internal successors, (19434), 13717 states have internal predecessors, (19434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:09,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13718 states to 13718 states and 19434 transitions. [2023-12-15 23:32:09,609 INFO L78 Accepts]: Start accepts. Automaton has 13718 states and 19434 transitions. Word has length 75 [2023-12-15 23:32:09,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:32:09,609 INFO L495 AbstractCegarLoop]: Abstraction has 13718 states and 19434 transitions. [2023-12-15 23:32:09,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:09,609 INFO L276 IsEmpty]: Start isEmpty. Operand 13718 states and 19434 transitions. [2023-12-15 23:32:09,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-15 23:32:09,611 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:32:09,611 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:32:09,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-15 23:32:09,612 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-15 23:32:09,612 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:32:09,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1159060167, now seen corresponding path program 1 times [2023-12-15 23:32:09,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:32:09,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662821902] [2023-12-15 23:32:09,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:32:09,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:32:09,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:32:09,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:32:09,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:32:09,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662821902] [2023-12-15 23:32:09,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662821902] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:32:09,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:32:09,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 23:32:09,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620249661] [2023-12-15 23:32:09,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:32:09,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-15 23:32:09,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:32:09,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-15 23:32:09,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-15 23:32:09,766 INFO L87 Difference]: Start difference. First operand 13718 states and 19434 transitions. Second operand has 8 states, 8 states have (on average 9.375) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:11,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:32:11,034 INFO L93 Difference]: Finished difference Result 20972 states and 29641 transitions. [2023-12-15 23:32:11,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 23:32:11,034 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2023-12-15 23:32:11,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:32:11,055 INFO L225 Difference]: With dead ends: 20972 [2023-12-15 23:32:11,055 INFO L226 Difference]: Without dead ends: 20736 [2023-12-15 23:32:11,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-12-15 23:32:11,062 INFO L413 NwaCegarLoop]: 778 mSDtfsCounter, 3789 mSDsluCounter, 2927 mSDsCounter, 0 mSdLazyCounter, 2980 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3789 SdHoareTripleChecker+Valid, 3705 SdHoareTripleChecker+Invalid, 2996 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 2980 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-15 23:32:11,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3789 Valid, 3705 Invalid, 2996 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 2980 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-15 23:32:11,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20736 states. [2023-12-15 23:32:11,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20736 to 13718. [2023-12-15 23:32:11,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13718 states, 13716 states have (on average 1.4168124817731116) internal successors, (19433), 13717 states have internal predecessors, (19433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:11,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13718 states to 13718 states and 19433 transitions. [2023-12-15 23:32:11,258 INFO L78 Accepts]: Start accepts. Automaton has 13718 states and 19433 transitions. Word has length 75 [2023-12-15 23:32:11,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:32:11,258 INFO L495 AbstractCegarLoop]: Abstraction has 13718 states and 19433 transitions. [2023-12-15 23:32:11,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:11,258 INFO L276 IsEmpty]: Start isEmpty. Operand 13718 states and 19433 transitions. [2023-12-15 23:32:11,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-15 23:32:11,260 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:32:11,260 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:32:11,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-15 23:32:11,260 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-15 23:32:11,261 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:32:11,261 INFO L85 PathProgramCache]: Analyzing trace with hash 484371982, now seen corresponding path program 1 times [2023-12-15 23:32:11,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:32:11,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124455539] [2023-12-15 23:32:11,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:32:11,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:32:11,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:32:11,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:32:11,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:32:11,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124455539] [2023-12-15 23:32:11,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124455539] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:32:11,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:32:11,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 23:32:11,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962145735] [2023-12-15 23:32:11,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:32:11,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-15 23:32:11,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:32:11,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-15 23:32:11,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-15 23:32:11,397 INFO L87 Difference]: Start difference. First operand 13718 states and 19433 transitions. Second operand has 8 states, 8 states have (on average 9.375) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:12,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:32:12,570 INFO L93 Difference]: Finished difference Result 20922 states and 29591 transitions. [2023-12-15 23:32:12,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 23:32:12,571 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2023-12-15 23:32:12,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:32:12,592 INFO L225 Difference]: With dead ends: 20922 [2023-12-15 23:32:12,592 INFO L226 Difference]: Without dead ends: 20708 [2023-12-15 23:32:12,598 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 [2023-12-15 23:32:12,599 INFO L413 NwaCegarLoop]: 728 mSDtfsCounter, 2665 mSDsluCounter, 2922 mSDsCounter, 0 mSdLazyCounter, 2789 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2665 SdHoareTripleChecker+Valid, 3650 SdHoareTripleChecker+Invalid, 2804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-15 23:32:12,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2665 Valid, 3650 Invalid, 2804 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 2789 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-15 23:32:12,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20708 states. [2023-12-15 23:32:12,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20708 to 13718. [2023-12-15 23:32:12,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13718 states, 13716 states have (on average 1.4167395742198892) internal successors, (19432), 13717 states have internal predecessors, (19432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:12,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13718 states to 13718 states and 19432 transitions. [2023-12-15 23:32:12,758 INFO L78 Accepts]: Start accepts. Automaton has 13718 states and 19432 transitions. Word has length 75 [2023-12-15 23:32:12,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:32:12,758 INFO L495 AbstractCegarLoop]: Abstraction has 13718 states and 19432 transitions. [2023-12-15 23:32:12,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:12,758 INFO L276 IsEmpty]: Start isEmpty. Operand 13718 states and 19432 transitions. [2023-12-15 23:32:12,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-15 23:32:12,760 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:32:12,760 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:32:12,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-15 23:32:12,760 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-15 23:32:12,760 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:32:12,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1269088861, now seen corresponding path program 1 times [2023-12-15 23:32:12,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:32:12,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361352675] [2023-12-15 23:32:12,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:32:12,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:32:12,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:32:13,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:32:13,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:32:13,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361352675] [2023-12-15 23:32:13,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361352675] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:32:13,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:32:13,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-15 23:32:13,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58690983] [2023-12-15 23:32:13,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:32:13,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-15 23:32:13,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:32:13,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-15 23:32:13,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-15 23:32:13,060 INFO L87 Difference]: Start difference. First operand 13718 states and 19432 transitions. Second operand has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 10 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:15,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:32:15,132 INFO L93 Difference]: Finished difference Result 48819 states and 69869 transitions. [2023-12-15 23:32:15,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-12-15 23:32:15,133 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 10 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2023-12-15 23:32:15,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:32:15,185 INFO L225 Difference]: With dead ends: 48819 [2023-12-15 23:32:15,185 INFO L226 Difference]: Without dead ends: 48583 [2023-12-15 23:32:15,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 325 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=332, Invalid=928, Unknown=0, NotChecked=0, Total=1260 [2023-12-15 23:32:15,202 INFO L413 NwaCegarLoop]: 855 mSDtfsCounter, 8914 mSDsluCounter, 2956 mSDsCounter, 0 mSdLazyCounter, 3263 mSolverCounterSat, 253 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8914 SdHoareTripleChecker+Valid, 3811 SdHoareTripleChecker+Invalid, 3516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 253 IncrementalHoareTripleChecker+Valid, 3263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-15 23:32:15,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8914 Valid, 3811 Invalid, 3516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [253 Valid, 3263 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-15 23:32:15,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48583 states. [2023-12-15 23:32:15,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48583 to 13722. [2023-12-15 23:32:15,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13722 states, 13720 states have (on average 1.4166180758017493) internal successors, (19436), 13721 states have internal predecessors, (19436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:15,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13722 states to 13722 states and 19436 transitions. [2023-12-15 23:32:15,536 INFO L78 Accepts]: Start accepts. Automaton has 13722 states and 19436 transitions. Word has length 75 [2023-12-15 23:32:15,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:32:15,536 INFO L495 AbstractCegarLoop]: Abstraction has 13722 states and 19436 transitions. [2023-12-15 23:32:15,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 10 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:15,536 INFO L276 IsEmpty]: Start isEmpty. Operand 13722 states and 19436 transitions. [2023-12-15 23:32:15,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-15 23:32:15,538 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:32:15,538 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:32:15,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-15 23:32:15,538 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-15 23:32:15,539 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:32:15,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1308758756, now seen corresponding path program 1 times [2023-12-15 23:32:15,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:32:15,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934925710] [2023-12-15 23:32:15,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:32:15,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:32:15,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:32:15,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:32:15,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:32:15,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934925710] [2023-12-15 23:32:15,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934925710] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:32:15,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:32:15,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-15 23:32:15,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678467644] [2023-12-15 23:32:15,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:32:15,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-15 23:32:15,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:32:15,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-15 23:32:15,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-15 23:32:15,809 INFO L87 Difference]: Start difference. First operand 13722 states and 19436 transitions. Second operand has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 10 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2023-12-15 23:32:16,880 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-15 23:32:16,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 23:32:16,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-12-15 23:32:16,885 INFO L413 NwaCegarLoop]: 495 mSDtfsCounter, 6053 mSDsluCounter, 1320 mSDsCounter, 0 mSdLazyCounter, 1869 mSolverCounterSat, 192 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6053 SdHoareTripleChecker+Valid, 1815 SdHoareTripleChecker+Invalid, 2061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 192 IncrementalHoareTripleChecker+Valid, 1869 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-15 23:32:16,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6053 Valid, 1815 Invalid, 2061 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [192 Valid, 1869 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-15 23:32:16,886 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2023-12-15 23:32:16,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-15 23:32:16,887 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (13722states) and FLOYD_HOARE automaton (currently 14 states, 11 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-11-2-1 term,while SimplifyDDA2 was simplifying 9 xjuncts wrt. a ATOM-1 context. [2023-12-15 23:32:16,888 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2023-12-15 23:32:16,888 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2023-12-15 23:32:16,888 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (3 of 7 remaining) [2023-12-15 23:32:16,888 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (2 of 7 remaining) [2023-12-15 23:32:16,888 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2023-12-15 23:32:16,889 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2023-12-15 23:32:16,891 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:32:16,893 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 23:32:16,895 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 11:32:16 BoogieIcfgContainer [2023-12-15 23:32:16,895 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 23:32:16,895 INFO L158 Benchmark]: Toolchain (without parser) took 55456.31ms. Allocated memory was 238.0MB in the beginning and 1.0GB in the end (delta: 772.8MB). Free memory was 182.6MB in the beginning and 388.8MB in the end (delta: -206.2MB). Peak memory consumption was 567.0MB. Max. memory is 8.0GB. [2023-12-15 23:32:16,895 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 198.2MB. Free memory is still 149.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 23:32:16,895 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1259.23ms. Allocated memory is still 238.0MB. Free memory was 182.2MB in the beginning and 170.1MB in the end (delta: 12.1MB). Peak memory consumption was 87.9MB. Max. memory is 8.0GB. [2023-12-15 23:32:16,895 INFO L158 Benchmark]: Boogie Procedure Inliner took 155.20ms. Allocated memory is still 238.0MB. Free memory was 170.1MB in the beginning and 133.9MB in the end (delta: 36.2MB). Peak memory consumption was 35.7MB. Max. memory is 8.0GB. [2023-12-15 23:32:16,895 INFO L158 Benchmark]: Boogie Preprocessor took 219.91ms. Allocated memory is still 238.0MB. Free memory was 133.9MB in the beginning and 96.7MB in the end (delta: 37.2MB). Peak memory consumption was 37.7MB. Max. memory is 8.0GB. [2023-12-15 23:32:16,896 INFO L158 Benchmark]: RCFGBuilder took 3199.66ms. Allocated memory was 238.0MB in the beginning and 589.3MB in the end (delta: 351.3MB). Free memory was 96.7MB in the beginning and 358.5MB in the end (delta: -261.8MB). Peak memory consumption was 107.8MB. Max. memory is 8.0GB. [2023-12-15 23:32:16,897 INFO L158 Benchmark]: TraceAbstraction took 50615.03ms. Allocated memory was 589.3MB in the beginning and 1.0GB in the end (delta: 421.5MB). Free memory was 357.5MB in the beginning and 388.8MB in the end (delta: -31.3MB). Peak memory consumption was 389.7MB. Max. memory is 8.0GB. [2023-12-15 23:32:16,899 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 198.2MB. Free memory is still 149.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1259.23ms. Allocated memory is still 238.0MB. Free memory was 182.2MB in the beginning and 170.1MB in the end (delta: 12.1MB). Peak memory consumption was 87.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 155.20ms. Allocated memory is still 238.0MB. Free memory was 170.1MB in the beginning and 133.9MB in the end (delta: 36.2MB). Peak memory consumption was 35.7MB. Max. memory is 8.0GB. * Boogie Preprocessor took 219.91ms. Allocated memory is still 238.0MB. Free memory was 133.9MB in the beginning and 96.7MB in the end (delta: 37.2MB). Peak memory consumption was 37.7MB. Max. memory is 8.0GB. * RCFGBuilder took 3199.66ms. Allocated memory was 238.0MB in the beginning and 589.3MB in the end (delta: 351.3MB). Free memory was 96.7MB in the beginning and 358.5MB in the end (delta: -261.8MB). Peak memory consumption was 107.8MB. Max. memory is 8.0GB. * TraceAbstraction took 50615.03ms. Allocated memory was 589.3MB in the beginning and 1.0GB in the end (delta: 421.5MB). Free memory was 357.5MB in the beginning and 388.8MB in the end (delta: -31.3MB). Peak memory consumption was 389.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 4865]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 4865). Cancelled while NwaCegarLoop was constructing difference of abstraction (13722states) and FLOYD_HOARE automaton (currently 14 states, 11 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-11-2-1 term,while SimplifyDDA2 was simplifying 9 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 2290]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 2290). Cancelled while NwaCegarLoop was constructing difference of abstraction (13722states) and FLOYD_HOARE automaton (currently 14 states, 11 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-11-2-1 term,while SimplifyDDA2 was simplifying 9 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 4200]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 4200). Cancelled while NwaCegarLoop was constructing difference of abstraction (13722states) and FLOYD_HOARE automaton (currently 14 states, 11 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-11-2-1 term,while SimplifyDDA2 was simplifying 9 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 6953]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 6953). Cancelled while NwaCegarLoop was constructing difference of abstraction (13722states) and FLOYD_HOARE automaton (currently 14 states, 11 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-11-2-1 term,while SimplifyDDA2 was simplifying 9 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 8100]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 8100). Cancelled while NwaCegarLoop was constructing difference of abstraction (13722states) and FLOYD_HOARE automaton (currently 14 states, 11 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-11-2-1 term,while SimplifyDDA2 was simplifying 9 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 9447]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 9447). Cancelled while NwaCegarLoop was constructing difference of abstraction (13722states) and FLOYD_HOARE automaton (currently 14 states, 11 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-11-2-1 term,while SimplifyDDA2 was simplifying 9 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 10854]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 10854). Cancelled while NwaCegarLoop was constructing difference of abstraction (13722states) and FLOYD_HOARE automaton (currently 14 states, 11 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-11-2-1 term,while SimplifyDDA2 was simplifying 9 xjuncts wrt. a ATOM-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 2044 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 50.6s, OverallIterations: 28, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 40.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 172049 SdHoareTripleChecker+Valid, 30.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 172049 mSDsluCounter, 130766 SdHoareTripleChecker+Invalid, 24.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 99147 mSDsCounter, 1138 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 65771 IncrementalHoareTripleChecker+Invalid, 66909 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1138 mSolverCounterUnsat, 31619 mSDtfsCounter, 65771 mSolverCounterSat, 0.5s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 502 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 467 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3026 ImplicationChecksByTransitivity, 7.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14911occurred in iteration=20, InterpolantAutomatonStates: 393, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.5s AutomataMinimizationTime, 27 MinimizatonAttempts, 226583 StatesRemovedByMinimization, 27 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 5.3s InterpolantComputationTime, 1977 NumberOfCodeBlocks, 1977 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 1949 ConstructedInterpolants, 0 QuantifiedInterpolants, 16245 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 28 InterpolantComputations, 28 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown