/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/forester-heap/sll-01-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 16:44:46,768 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 16:44:46,842 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-19 16:44:46,847 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 16:44:46,847 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 16:44:46,869 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 16:44:46,870 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 16:44:46,870 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 16:44:46,870 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 16:44:46,873 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 16:44:46,873 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 16:44:46,874 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 16:44:46,874 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 16:44:46,875 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 16:44:46,875 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 16:44:46,875 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 16:44:46,876 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 16:44:46,876 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 16:44:46,876 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 16:44:46,876 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 16:44:46,876 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 16:44:46,877 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 16:44:46,877 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 16:44:46,877 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 16:44:46,877 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 16:44:46,877 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 16:44:46,877 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 16:44:46,878 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 16:44:46,878 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 16:44:46,878 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 16:44:46,879 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 16:44:46,879 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 16:44:46,879 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 16:44:46,879 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 16:44:46,880 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 16:44:46,880 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 16:44:46,880 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 16:44:46,880 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 16:44:46,880 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 16:44:46,880 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 16:44:46,880 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 16:44:46,881 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 16:44:46,881 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 16:44:46,881 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 16:44:47,023 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 16:44:47,035 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 16:44:47,037 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 16:44:47,037 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 16:44:47,038 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 16:44:47,038 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/sll-01-1.i [2023-12-19 16:44:48,074 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 16:44:48,248 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 16:44:48,248 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-01-1.i [2023-12-19 16:44:48,257 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1807643ae/5f31e90eda644ca7a8020c67ab661857/FLAG8b16541d8 [2023-12-19 16:44:48,266 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1807643ae/5f31e90eda644ca7a8020c67ab661857 [2023-12-19 16:44:48,268 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 16:44:48,269 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 16:44:48,270 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 16:44:48,270 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 16:44:48,277 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 16:44:48,278 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:44:48" (1/1) ... [2023-12-19 16:44:48,279 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5972cbe5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:44:48, skipping insertion in model container [2023-12-19 16:44:48,279 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:44:48" (1/1) ... [2023-12-19 16:44:48,335 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 16:44:48,584 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-01-1.i[22034,22047] [2023-12-19 16:44:48,600 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-01-1.i[22307,22320] [2023-12-19 16:44:48,602 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-01-1.i[22516,22529] [2023-12-19 16:44:48,602 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-01-1.i[22586,22599] [2023-12-19 16:44:48,604 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-01-1.i[22853,22866] [2023-12-19 16:44:48,605 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-01-1.i[22961,22974] [2023-12-19 16:44:48,606 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-01-1.i[23192,23205] [2023-12-19 16:44:48,607 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-01-1.i[23272,23285] [2023-12-19 16:44:48,607 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-01-1.i[23351,23364] [2023-12-19 16:44:48,612 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-01-1.i[23441,23454] [2023-12-19 16:44:48,614 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-01-1.i[23619,23632] [2023-12-19 16:44:48,614 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-01-1.i[23697,23710] [2023-12-19 16:44:48,615 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-01-1.i[23774,23787] [2023-12-19 16:44:48,617 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 16:44:48,627 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 16:44:48,653 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-01-1.i[22034,22047] [2023-12-19 16:44:48,655 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-01-1.i[22307,22320] [2023-12-19 16:44:48,656 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-01-1.i[22516,22529] [2023-12-19 16:44:48,656 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-01-1.i[22586,22599] [2023-12-19 16:44:48,658 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-01-1.i[22853,22866] [2023-12-19 16:44:48,658 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-01-1.i[22961,22974] [2023-12-19 16:44:48,659 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-01-1.i[23192,23205] [2023-12-19 16:44:48,659 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-01-1.i[23272,23285] [2023-12-19 16:44:48,660 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-01-1.i[23351,23364] [2023-12-19 16:44:48,660 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-01-1.i[23441,23454] [2023-12-19 16:44:48,661 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-01-1.i[23619,23632] [2023-12-19 16:44:48,662 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-01-1.i[23697,23710] [2023-12-19 16:44:48,662 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-01-1.i[23774,23787] [2023-12-19 16:44:48,663 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 16:44:48,679 INFO L206 MainTranslator]: Completed translation [2023-12-19 16:44:48,680 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:44:48 WrapperNode [2023-12-19 16:44:48,680 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 16:44:48,681 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 16:44:48,681 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 16:44:48,681 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 16:44:48,685 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:44:48" (1/1) ... [2023-12-19 16:44:48,693 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:44:48" (1/1) ... [2023-12-19 16:44:48,710 INFO L138 Inliner]: procedures = 119, calls = 41, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 224 [2023-12-19 16:44:48,710 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 16:44:48,710 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 16:44:48,711 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 16:44:48,711 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 16:44:48,717 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:44:48" (1/1) ... [2023-12-19 16:44:48,717 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:44:48" (1/1) ... [2023-12-19 16:44:48,719 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:44:48" (1/1) ... [2023-12-19 16:44:48,737 INFO L175 MemorySlicer]: Split 31 memory accesses to 2 slices as follows [2, 29]. 94 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 11 writes are split as follows [0, 11]. [2023-12-19 16:44:48,738 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:44:48" (1/1) ... [2023-12-19 16:44:48,738 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:44:48" (1/1) ... [2023-12-19 16:44:48,744 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:44:48" (1/1) ... [2023-12-19 16:44:48,747 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:44:48" (1/1) ... [2023-12-19 16:44:48,761 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:44:48" (1/1) ... [2023-12-19 16:44:48,762 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:44:48" (1/1) ... [2023-12-19 16:44:48,764 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 16:44:48,765 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 16:44:48,765 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 16:44:48,765 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 16:44:48,765 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:44:48" (1/1) ... [2023-12-19 16:44:48,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 16:44:48,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 16:44:48,795 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) [2023-12-19 16:44:48,797 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 [2023-12-19 16:44:48,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-19 16:44:48,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 16:44:48,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-12-19 16:44:48,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-12-19 16:44:48,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-12-19 16:44:48,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-12-19 16:44:48,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-19 16:44:48,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 16:44:48,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-19 16:44:48,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 16:44:48,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 16:44:48,937 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 16:44:48,939 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 16:44:49,168 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 16:44:49,188 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 16:44:49,188 INFO L309 CfgBuilder]: Removed 30 assume(true) statements. [2023-12-19 16:44:49,188 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:44:49 BoogieIcfgContainer [2023-12-19 16:44:49,188 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 16:44:49,190 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 16:44:49,190 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 16:44:49,192 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 16:44:49,192 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 04:44:48" (1/3) ... [2023-12-19 16:44:49,193 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fafcd43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:44:49, skipping insertion in model container [2023-12-19 16:44:49,193 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:44:48" (2/3) ... [2023-12-19 16:44:49,193 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fafcd43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:44:49, skipping insertion in model container [2023-12-19 16:44:49,193 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:44:49" (3/3) ... [2023-12-19 16:44:49,194 INFO L112 eAbstractionObserver]: Analyzing ICFG sll-01-1.i [2023-12-19 16:44:49,205 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 16:44:49,205 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2023-12-19 16:44:49,235 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 16:44:49,239 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;@6e4930c2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 16:44:49,239 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2023-12-19 16:44:49,243 INFO L276 IsEmpty]: Start isEmpty. Operand has 80 states, 66 states have (on average 2.0) internal successors, (132), 79 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 16:44:49,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-12-19 16:44:49,247 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 16:44:49,248 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-12-19 16:44:49,248 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2023-12-19 16:44:49,252 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 16:44:49,252 INFO L85 PathProgramCache]: Analyzing trace with hash 348139, now seen corresponding path program 1 times [2023-12-19 16:44:49,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 16:44:49,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688190793] [2023-12-19 16:44:49,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 16:44:49,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 16:44:49,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:44:49,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 16:44:49,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 16:44:49,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688190793] [2023-12-19 16:44:49,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688190793] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 16:44:49,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 16:44:49,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 16:44:49,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062708923] [2023-12-19 16:44:49,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 16:44:49,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 16:44:49,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 16:44:49,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 16:44:49,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 16:44:49,463 INFO L87 Difference]: Start difference. First operand has 80 states, 66 states have (on average 2.0) internal successors, (132), 79 states have internal predecessors, (132), 0 states have call successors, (0), 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 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 16:44:49,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 16:44:49,522 INFO L93 Difference]: Finished difference Result 175 states and 291 transitions. [2023-12-19 16:44:49,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 16:44:49,526 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 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 3 [2023-12-19 16:44:49,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 16:44:49,532 INFO L225 Difference]: With dead ends: 175 [2023-12-19 16:44:49,532 INFO L226 Difference]: Without dead ends: 94 [2023-12-19 16:44:49,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 16:44:49,537 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 83 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 16:44:49,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 93 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 16:44:49,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2023-12-19 16:44:49,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 76. [2023-12-19 16:44:49,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 64 states have (on average 1.328125) internal successors, (85), 75 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 16:44:49,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 85 transitions. [2023-12-19 16:44:49,573 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 85 transitions. Word has length 3 [2023-12-19 16:44:49,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 16:44:49,574 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 85 transitions. [2023-12-19 16:44:49,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 16:44:49,574 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 85 transitions. [2023-12-19 16:44:49,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-19 16:44:49,574 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 16:44:49,575 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 16:44:49,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-19 16:44:49,575 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2023-12-19 16:44:49,576 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 16:44:49,576 INFO L85 PathProgramCache]: Analyzing trace with hash -85138699, now seen corresponding path program 1 times [2023-12-19 16:44:49,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 16:44:49,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665166393] [2023-12-19 16:44:49,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 16:44:49,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 16:44:49,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:44:49,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 16:44:49,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 16:44:49,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665166393] [2023-12-19 16:44:49,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665166393] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 16:44:49,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 16:44:49,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 16:44:49,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714017406] [2023-12-19 16:44:49,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 16:44:49,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 16:44:49,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 16:44:49,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 16:44:49,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 16:44:49,714 INFO L87 Difference]: Start difference. First operand 76 states and 85 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 16:44:49,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 16:44:49,786 INFO L93 Difference]: Finished difference Result 200 states and 222 transitions. [2023-12-19 16:44:49,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 16:44:49,787 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 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 9 [2023-12-19 16:44:49,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 16:44:49,790 INFO L225 Difference]: With dead ends: 200 [2023-12-19 16:44:49,790 INFO L226 Difference]: Without dead ends: 131 [2023-12-19 16:44:49,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-19 16:44:49,792 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 58 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 16:44:49,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 200 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 16:44:49,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2023-12-19 16:44:49,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 78. [2023-12-19 16:44:49,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 66 states have (on average 1.3181818181818181) internal successors, (87), 77 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 16:44:49,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 87 transitions. [2023-12-19 16:44:49,807 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 87 transitions. Word has length 9 [2023-12-19 16:44:49,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 16:44:49,807 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 87 transitions. [2023-12-19 16:44:49,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 16:44:49,807 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 87 transitions. [2023-12-19 16:44:49,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-19 16:44:49,808 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 16:44:49,808 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 16:44:49,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-19 16:44:49,808 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2023-12-19 16:44:49,808 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 16:44:49,808 INFO L85 PathProgramCache]: Analyzing trace with hash -85136777, now seen corresponding path program 1 times [2023-12-19 16:44:49,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 16:44:49,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641195583] [2023-12-19 16:44:49,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 16:44:49,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 16:44:49,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:44:49,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 16:44:49,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 16:44:49,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641195583] [2023-12-19 16:44:49,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641195583] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 16:44:49,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 16:44:49,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 16:44:49,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277173985] [2023-12-19 16:44:49,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 16:44:49,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 16:44:49,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 16:44:49,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 16:44:49,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 16:44:49,891 INFO L87 Difference]: Start difference. First operand 78 states and 87 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 16:44:49,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 16:44:49,963 INFO L93 Difference]: Finished difference Result 132 states and 147 transitions. [2023-12-19 16:44:49,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 16:44:49,963 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 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 9 [2023-12-19 16:44:49,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 16:44:49,966 INFO L225 Difference]: With dead ends: 132 [2023-12-19 16:44:49,966 INFO L226 Difference]: Without dead ends: 130 [2023-12-19 16:44:49,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-19 16:44:49,968 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 55 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 16:44:49,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 198 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 16:44:49,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2023-12-19 16:44:49,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 79. [2023-12-19 16:44:49,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 67 states have (on average 1.3134328358208955) internal successors, (88), 78 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 16:44:49,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 88 transitions. [2023-12-19 16:44:49,981 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 88 transitions. Word has length 9 [2023-12-19 16:44:49,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 16:44:49,981 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 88 transitions. [2023-12-19 16:44:49,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 16:44:49,982 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 88 transitions. [2023-12-19 16:44:49,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-19 16:44:49,982 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 16:44:49,982 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 16:44:49,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-19 16:44:49,982 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2023-12-19 16:44:49,982 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 16:44:49,983 INFO L85 PathProgramCache]: Analyzing trace with hash -83289735, now seen corresponding path program 1 times [2023-12-19 16:44:49,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 16:44:49,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73021060] [2023-12-19 16:44:49,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 16:44:49,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 16:44:50,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:44:50,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 16:44:50,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 16:44:50,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73021060] [2023-12-19 16:44:50,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73021060] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 16:44:50,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 16:44:50,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 16:44:50,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927512063] [2023-12-19 16:44:50,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 16:44:50,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 16:44:50,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 16:44:50,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 16:44:50,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-19 16:44:50,065 INFO L87 Difference]: Start difference. First operand 79 states and 88 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 16:44:50,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 16:44:50,097 INFO L93 Difference]: Finished difference Result 79 states and 88 transitions. [2023-12-19 16:44:50,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 16:44:50,098 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 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 9 [2023-12-19 16:44:50,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 16:44:50,098 INFO L225 Difference]: With dead ends: 79 [2023-12-19 16:44:50,098 INFO L226 Difference]: Without dead ends: 77 [2023-12-19 16:44:50,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-19 16:44:50,099 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 1 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 16:44:50,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 138 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 16:44:50,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2023-12-19 16:44:50,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 76. [2023-12-19 16:44:50,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 65 states have (on average 1.3076923076923077) internal successors, (85), 75 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 16:44:50,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 85 transitions. [2023-12-19 16:44:50,104 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 85 transitions. Word has length 9 [2023-12-19 16:44:50,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 16:44:50,105 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 85 transitions. [2023-12-19 16:44:50,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 16:44:50,105 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 85 transitions. [2023-12-19 16:44:50,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-19 16:44:50,105 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 16:44:50,105 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 16:44:50,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-19 16:44:50,106 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2023-12-19 16:44:50,106 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 16:44:50,106 INFO L85 PathProgramCache]: Analyzing trace with hash -198671904, now seen corresponding path program 1 times [2023-12-19 16:44:50,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 16:44:50,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498503132] [2023-12-19 16:44:50,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 16:44:50,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 16:44:50,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:44:50,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 16:44:50,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 16:44:50,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498503132] [2023-12-19 16:44:50,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498503132] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 16:44:50,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 16:44:50,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 16:44:50,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052572645] [2023-12-19 16:44:50,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 16:44:50,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 16:44:50,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 16:44:50,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 16:44:50,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 16:44:50,144 INFO L87 Difference]: Start difference. First operand 76 states and 85 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 16:44:50,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 16:44:50,173 INFO L93 Difference]: Finished difference Result 79 states and 89 transitions. [2023-12-19 16:44:50,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 16:44:50,173 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 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 14 [2023-12-19 16:44:50,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 16:44:50,174 INFO L225 Difference]: With dead ends: 79 [2023-12-19 16:44:50,174 INFO L226 Difference]: Without dead ends: 75 [2023-12-19 16:44:50,174 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 [2023-12-19 16:44:50,175 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 16 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 16:44:50,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 122 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 16:44:50,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2023-12-19 16:44:50,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 72. [2023-12-19 16:44:50,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 63 states have (on average 1.2857142857142858) internal successors, (81), 71 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 16:44:50,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 81 transitions. [2023-12-19 16:44:50,181 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 81 transitions. Word has length 14 [2023-12-19 16:44:50,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 16:44:50,181 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 81 transitions. [2023-12-19 16:44:50,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 16:44:50,182 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 81 transitions. [2023-12-19 16:44:50,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-19 16:44:50,182 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 16:44:50,182 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 16:44:50,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-19 16:44:50,182 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2023-12-19 16:44:50,183 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 16:44:50,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1863857528, now seen corresponding path program 1 times [2023-12-19 16:44:50,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 16:44:50,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745660117] [2023-12-19 16:44:50,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 16:44:50,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 16:44:50,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:44:50,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 16:44:50,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 16:44:50,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745660117] [2023-12-19 16:44:50,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745660117] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 16:44:50,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 16:44:50,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 16:44:50,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004007996] [2023-12-19 16:44:50,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 16:44:50,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 16:44:50,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 16:44:50,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 16:44:50,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 16:44:50,231 INFO L87 Difference]: Start difference. First operand 72 states and 81 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 16:44:50,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 16:44:50,285 INFO L93 Difference]: Finished difference Result 131 states and 145 transitions. [2023-12-19 16:44:50,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 16:44:50,286 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 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 15 [2023-12-19 16:44:50,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 16:44:50,287 INFO L225 Difference]: With dead ends: 131 [2023-12-19 16:44:50,287 INFO L226 Difference]: Without dead ends: 111 [2023-12-19 16:44:50,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-19 16:44:50,290 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 131 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 16:44:50,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 112 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 16:44:50,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2023-12-19 16:44:50,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 71. [2023-12-19 16:44:50,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 63 states have (on average 1.2698412698412698) internal successors, (80), 70 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 16:44:50,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 80 transitions. [2023-12-19 16:44:50,305 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 80 transitions. Word has length 15 [2023-12-19 16:44:50,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 16:44:50,305 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 80 transitions. [2023-12-19 16:44:50,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 16:44:50,306 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 80 transitions. [2023-12-19 16:44:50,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-19 16:44:50,306 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 16:44:50,306 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 16:44:50,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-19 16:44:50,307 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2023-12-19 16:44:50,307 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 16:44:50,307 INFO L85 PathProgramCache]: Analyzing trace with hash -219174669, now seen corresponding path program 1 times [2023-12-19 16:44:50,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 16:44:50,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065107534] [2023-12-19 16:44:50,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 16:44:50,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 16:44:50,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:44:50,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 16:44:50,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 16:44:50,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065107534] [2023-12-19 16:44:50,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065107534] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 16:44:50,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 16:44:50,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 16:44:50,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778944881] [2023-12-19 16:44:50,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 16:44:50,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 16:44:50,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 16:44:50,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 16:44:50,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 16:44:50,353 INFO L87 Difference]: Start difference. First operand 71 states and 80 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 16:44:50,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 16:44:50,366 INFO L93 Difference]: Finished difference Result 117 states and 133 transitions. [2023-12-19 16:44:50,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 16:44:50,366 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 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 19 [2023-12-19 16:44:50,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 16:44:50,367 INFO L225 Difference]: With dead ends: 117 [2023-12-19 16:44:50,367 INFO L226 Difference]: Without dead ends: 76 [2023-12-19 16:44:50,368 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 [2023-12-19 16:44:50,368 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 3 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 16:44:50,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 144 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 16:44:50,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2023-12-19 16:44:50,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 74. [2023-12-19 16:44:50,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 66 states have (on average 1.2727272727272727) internal successors, (84), 73 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 16:44:50,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 84 transitions. [2023-12-19 16:44:50,377 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 84 transitions. Word has length 19 [2023-12-19 16:44:50,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 16:44:50,378 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 84 transitions. [2023-12-19 16:44:50,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 16:44:50,378 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 84 transitions. [2023-12-19 16:44:50,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-19 16:44:50,379 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 16:44:50,379 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] [2023-12-19 16:44:50,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-19 16:44:50,379 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2023-12-19 16:44:50,380 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 16:44:50,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1795515351, now seen corresponding path program 1 times [2023-12-19 16:44:50,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 16:44:50,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486876059] [2023-12-19 16:44:50,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 16:44:50,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 16:44:50,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:44:50,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 16:44:50,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 16:44:50,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486876059] [2023-12-19 16:44:50,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486876059] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 16:44:50,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 16:44:50,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 16:44:50,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654979241] [2023-12-19 16:44:50,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 16:44:50,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 16:44:50,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 16:44:50,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 16:44:50,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 16:44:50,424 INFO L87 Difference]: Start difference. First operand 74 states and 84 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 16:44:50,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 16:44:50,436 INFO L93 Difference]: Finished difference Result 74 states and 84 transitions. [2023-12-19 16:44:50,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 16:44:50,436 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 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 20 [2023-12-19 16:44:50,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 16:44:50,437 INFO L225 Difference]: With dead ends: 74 [2023-12-19 16:44:50,437 INFO L226 Difference]: Without dead ends: 72 [2023-12-19 16:44:50,437 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 [2023-12-19 16:44:50,438 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 13 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 16:44:50,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 125 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 16:44:50,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2023-12-19 16:44:50,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2023-12-19 16:44:50,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 65 states have (on average 1.2615384615384615) internal successors, (82), 71 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 16:44:50,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 82 transitions. [2023-12-19 16:44:50,443 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 82 transitions. Word has length 20 [2023-12-19 16:44:50,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 16:44:50,443 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 82 transitions. [2023-12-19 16:44:50,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 16:44:50,443 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 82 transitions. [2023-12-19 16:44:50,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-19 16:44:50,443 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 16:44:50,444 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] [2023-12-19 16:44:50,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-19 16:44:50,447 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2023-12-19 16:44:50,447 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 16:44:50,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1692801264, now seen corresponding path program 1 times [2023-12-19 16:44:50,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 16:44:50,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204559497] [2023-12-19 16:44:50,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 16:44:50,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 16:44:50,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:44:50,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 16:44:50,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 16:44:50,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204559497] [2023-12-19 16:44:50,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204559497] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 16:44:50,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 16:44:50,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 16:44:50,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153703018] [2023-12-19 16:44:50,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 16:44:50,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 16:44:50,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 16:44:50,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 16:44:50,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-19 16:44:50,543 INFO L87 Difference]: Start difference. First operand 72 states and 82 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 16:44:50,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 16:44:50,589 INFO L93 Difference]: Finished difference Result 73 states and 83 transitions. [2023-12-19 16:44:50,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 16:44:50,590 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 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 22 [2023-12-19 16:44:50,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 16:44:50,591 INFO L225 Difference]: With dead ends: 73 [2023-12-19 16:44:50,591 INFO L226 Difference]: Without dead ends: 71 [2023-12-19 16:44:50,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-19 16:44:50,592 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 1 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 16:44:50,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 110 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 16:44:50,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2023-12-19 16:44:50,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 70. [2023-12-19 16:44:50,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 64 states have (on average 1.25) internal successors, (80), 69 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 16:44:50,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 80 transitions. [2023-12-19 16:44:50,596 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 80 transitions. Word has length 22 [2023-12-19 16:44:50,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 16:44:50,596 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 80 transitions. [2023-12-19 16:44:50,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 16:44:50,596 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 80 transitions. [2023-12-19 16:44:50,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-19 16:44:50,598 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 16:44:50,598 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] [2023-12-19 16:44:50,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-19 16:44:50,598 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2023-12-19 16:44:50,598 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 16:44:50,598 INFO L85 PathProgramCache]: Analyzing trace with hash 679211624, now seen corresponding path program 1 times [2023-12-19 16:44:50,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 16:44:50,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58181518] [2023-12-19 16:44:50,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 16:44:50,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 16:44:50,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:44:50,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 16:44:50,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 16:44:50,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58181518] [2023-12-19 16:44:50,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58181518] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 16:44:50,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 16:44:50,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 16:44:50,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492992884] [2023-12-19 16:44:50,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 16:44:50,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 16:44:50,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 16:44:50,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 16:44:50,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-19 16:44:50,784 INFO L87 Difference]: Start difference. First operand 70 states and 80 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 16:44:50,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 16:44:50,947 INFO L93 Difference]: Finished difference Result 198 states and 224 transitions. [2023-12-19 16:44:50,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 16:44:50,947 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 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 23 [2023-12-19 16:44:50,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 16:44:50,948 INFO L225 Difference]: With dead ends: 198 [2023-12-19 16:44:50,948 INFO L226 Difference]: Without dead ends: 156 [2023-12-19 16:44:50,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-12-19 16:44:50,951 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 142 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 16:44:50,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 251 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 16:44:50,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2023-12-19 16:44:50,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 92. [2023-12-19 16:44:50,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 86 states have (on average 1.2325581395348837) internal successors, (106), 91 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 16:44:50,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 106 transitions. [2023-12-19 16:44:50,958 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 106 transitions. Word has length 23 [2023-12-19 16:44:50,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 16:44:50,959 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 106 transitions. [2023-12-19 16:44:50,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 16:44:50,960 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 106 transitions. [2023-12-19 16:44:50,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-19 16:44:50,962 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 16:44:50,962 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] [2023-12-19 16:44:50,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-19 16:44:50,962 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2023-12-19 16:44:50,963 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 16:44:50,963 INFO L85 PathProgramCache]: Analyzing trace with hash 578615784, now seen corresponding path program 1 times [2023-12-19 16:44:50,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 16:44:50,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396782215] [2023-12-19 16:44:50,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 16:44:50,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 16:44:50,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:44:51,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 16:44:51,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 16:44:51,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396782215] [2023-12-19 16:44:51,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396782215] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 16:44:51,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 16:44:51,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 16:44:51,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065735343] [2023-12-19 16:44:51,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 16:44:51,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 16:44:51,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 16:44:51,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 16:44:51,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 16:44:51,379 INFO L87 Difference]: Start difference. First operand 92 states and 106 transitions. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 16:44:51,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 16:44:51,654 INFO L93 Difference]: Finished difference Result 197 states and 221 transitions. [2023-12-19 16:44:51,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 16:44:51,655 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 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 23 [2023-12-19 16:44:51,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 16:44:51,656 INFO L225 Difference]: With dead ends: 197 [2023-12-19 16:44:51,657 INFO L226 Difference]: Without dead ends: 195 [2023-12-19 16:44:51,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-12-19 16:44:51,657 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 198 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 16:44:51,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 385 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 16:44:51,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2023-12-19 16:44:51,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 104. [2023-12-19 16:44:51,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 98 states have (on average 1.2244897959183674) internal successors, (120), 103 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 16:44:51,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 120 transitions. [2023-12-19 16:44:51,669 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 120 transitions. Word has length 23 [2023-12-19 16:44:51,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 16:44:51,671 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 120 transitions. [2023-12-19 16:44:51,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 16:44:51,671 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 120 transitions. [2023-12-19 16:44:51,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-12-19 16:44:51,672 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 16:44:51,672 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] [2023-12-19 16:44:51,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-19 16:44:51,673 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2023-12-19 16:44:51,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 16:44:51,673 INFO L85 PathProgramCache]: Analyzing trace with hash -751953218, now seen corresponding path program 1 times [2023-12-19 16:44:51,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 16:44:51,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7021049] [2023-12-19 16:44:51,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 16:44:51,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 16:44:51,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:44:51,748 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-19 16:44:51,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 16:44:51,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7021049] [2023-12-19 16:44:51,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7021049] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 16:44:51,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 16:44:51,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 16:44:51,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832011210] [2023-12-19 16:44:51,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 16:44:51,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 16:44:51,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 16:44:51,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 16:44:51,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 16:44:51,749 INFO L87 Difference]: Start difference. First operand 104 states and 120 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 16:44:51,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 16:44:51,825 INFO L93 Difference]: Finished difference Result 155 states and 177 transitions. [2023-12-19 16:44:51,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 16:44:51,825 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 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 25 [2023-12-19 16:44:51,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 16:44:51,825 INFO L225 Difference]: With dead ends: 155 [2023-12-19 16:44:51,826 INFO L226 Difference]: Without dead ends: 137 [2023-12-19 16:44:51,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-19 16:44:51,826 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 22 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 16:44:51,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 186 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 16:44:51,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2023-12-19 16:44:51,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 129. [2023-12-19 16:44:51,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 123 states have (on average 1.2357723577235773) internal successors, (152), 128 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 16:44:51,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 152 transitions. [2023-12-19 16:44:51,842 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 152 transitions. Word has length 25 [2023-12-19 16:44:51,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 16:44:51,842 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 152 transitions. [2023-12-19 16:44:51,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 16:44:51,843 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 152 transitions. [2023-12-19 16:44:51,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-12-19 16:44:51,844 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 16:44:51,844 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] [2023-12-19 16:44:51,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-19 16:44:51,844 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2023-12-19 16:44:51,844 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 16:44:51,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1359692350, now seen corresponding path program 1 times [2023-12-19 16:44:51,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 16:44:51,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182911755] [2023-12-19 16:44:51,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 16:44:51,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 16:44:51,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:44:51,889 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-19 16:44:51,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 16:44:51,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182911755] [2023-12-19 16:44:51,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182911755] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 16:44:51,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 16:44:51,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 16:44:51,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636835182] [2023-12-19 16:44:51,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 16:44:51,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 16:44:51,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 16:44:51,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 16:44:51,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 16:44:51,890 INFO L87 Difference]: Start difference. First operand 129 states and 152 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 16:44:51,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 16:44:51,932 INFO L93 Difference]: Finished difference Result 129 states and 152 transitions. [2023-12-19 16:44:51,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 16:44:51,932 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 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 25 [2023-12-19 16:44:51,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 16:44:51,933 INFO L225 Difference]: With dead ends: 129 [2023-12-19 16:44:51,933 INFO L226 Difference]: Without dead ends: 127 [2023-12-19 16:44:51,933 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 [2023-12-19 16:44:51,934 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 49 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 16:44:51,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 73 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 16:44:51,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2023-12-19 16:44:51,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2023-12-19 16:44:51,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 122 states have (on average 1.2295081967213115) internal successors, (150), 126 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 16:44:51,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 150 transitions. [2023-12-19 16:44:51,951 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 150 transitions. Word has length 25 [2023-12-19 16:44:51,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 16:44:51,951 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 150 transitions. [2023-12-19 16:44:51,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 16:44:51,951 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 150 transitions. [2023-12-19 16:44:51,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-19 16:44:51,952 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 16:44:51,952 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] [2023-12-19 16:44:51,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-19 16:44:51,952 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2023-12-19 16:44:51,952 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 16:44:51,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1843174537, now seen corresponding path program 1 times [2023-12-19 16:44:51,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 16:44:51,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719927185] [2023-12-19 16:44:51,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 16:44:51,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 16:44:51,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:44:52,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 16:44:52,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 16:44:52,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719927185] [2023-12-19 16:44:52,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719927185] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 16:44:52,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 16:44:52,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 16:44:52,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854908348] [2023-12-19 16:44:52,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 16:44:52,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 16:44:52,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 16:44:52,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 16:44:52,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 16:44:52,283 INFO L87 Difference]: Start difference. First operand 127 states and 150 transitions. Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 16:44:52,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 16:44:52,552 INFO L93 Difference]: Finished difference Result 214 states and 245 transitions. [2023-12-19 16:44:52,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 16:44:52,552 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 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 26 [2023-12-19 16:44:52,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 16:44:52,553 INFO L225 Difference]: With dead ends: 214 [2023-12-19 16:44:52,553 INFO L226 Difference]: Without dead ends: 212 [2023-12-19 16:44:52,554 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-12-19 16:44:52,554 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 196 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 16:44:52,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 341 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 16:44:52,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2023-12-19 16:44:52,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 130. [2023-12-19 16:44:52,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 125 states have (on average 1.224) internal successors, (153), 129 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 16:44:52,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 153 transitions. [2023-12-19 16:44:52,575 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 153 transitions. Word has length 26 [2023-12-19 16:44:52,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 16:44:52,575 INFO L495 AbstractCegarLoop]: Abstraction has 130 states and 153 transitions. [2023-12-19 16:44:52,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 16:44:52,575 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 153 transitions. [2023-12-19 16:44:52,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-12-19 16:44:52,576 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 16:44:52,576 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 16:44:52,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-19 16:44:52,577 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2023-12-19 16:44:52,577 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 16:44:52,577 INFO L85 PathProgramCache]: Analyzing trace with hash 1835173535, now seen corresponding path program 1 times [2023-12-19 16:44:52,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 16:44:52,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843677716] [2023-12-19 16:44:52,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 16:44:52,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 16:44:52,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:44:52,672 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 16:44:52,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 16:44:52,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843677716] [2023-12-19 16:44:52,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843677716] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 16:44:52,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1265912177] [2023-12-19 16:44:52,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 16:44:52,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 16:44:52,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 16:44:52,675 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 16:44:52,729 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-19 16:44:52,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:44:52,797 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-19 16:44:52,800 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 16:44:52,834 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-19 16:44:52,838 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-19 16:44:52,874 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-12-19 16:44:52,879 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-12-19 16:44:53,014 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 16:44:53,015 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 16:44:53,077 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 16:44:53,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1265912177] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 16:44:53,078 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-19 16:44:53,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 4] total 7 [2023-12-19 16:44:53,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344286137] [2023-12-19 16:44:53,080 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-19 16:44:53,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-19 16:44:53,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 16:44:53,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-19 16:44:53,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-19 16:44:53,081 INFO L87 Difference]: Start difference. First operand 130 states and 153 transitions. Second operand has 8 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 16:44:53,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 16:44:53,243 INFO L93 Difference]: Finished difference Result 215 states and 248 transitions. [2023-12-19 16:44:53,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 16:44:53,243 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2023-12-19 16:44:53,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 16:44:53,244 INFO L225 Difference]: With dead ends: 215 [2023-12-19 16:44:53,244 INFO L226 Difference]: Without dead ends: 155 [2023-12-19 16:44:53,245 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-12-19 16:44:53,246 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 97 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 16:44:53,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 213 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 16:44:53,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2023-12-19 16:44:53,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 132. [2023-12-19 16:44:53,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 127 states have (on average 1.204724409448819) internal successors, (153), 131 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 16:44:53,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 153 transitions. [2023-12-19 16:44:53,266 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 153 transitions. Word has length 28 [2023-12-19 16:44:53,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 16:44:53,266 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 153 transitions. [2023-12-19 16:44:53,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 16:44:53,266 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 153 transitions. [2023-12-19 16:44:53,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-12-19 16:44:53,266 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 16:44:53,266 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] [2023-12-19 16:44:53,275 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-19 16:44:53,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-12-19 16:44:53,472 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2023-12-19 16:44:53,473 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 16:44:53,473 INFO L85 PathProgramCache]: Analyzing trace with hash 762414011, now seen corresponding path program 1 times [2023-12-19 16:44:53,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 16:44:53,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091910073] [2023-12-19 16:44:53,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 16:44:53,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 16:44:53,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:44:53,645 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 16:44:53,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 16:44:53,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091910073] [2023-12-19 16:44:53,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091910073] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 16:44:53,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 16:44:53,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 16:44:53,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38204253] [2023-12-19 16:44:53,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 16:44:53,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 16:44:53,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 16:44:53,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 16:44:53,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-19 16:44:53,647 INFO L87 Difference]: Start difference. First operand 132 states and 153 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 16:44:53,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 16:44:53,798 INFO L93 Difference]: Finished difference Result 209 states and 236 transitions. [2023-12-19 16:44:53,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 16:44:53,799 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 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 28 [2023-12-19 16:44:53,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 16:44:53,799 INFO L225 Difference]: With dead ends: 209 [2023-12-19 16:44:53,799 INFO L226 Difference]: Without dead ends: 189 [2023-12-19 16:44:53,800 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-19 16:44:53,800 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 96 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 16:44:53,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 250 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 16:44:53,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2023-12-19 16:44:53,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 142. [2023-12-19 16:44:53,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 137 states have (on average 1.197080291970803) internal successors, (164), 141 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 16:44:53,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 164 transitions. [2023-12-19 16:44:53,821 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 164 transitions. Word has length 28 [2023-12-19 16:44:53,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 16:44:53,821 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 164 transitions. [2023-12-19 16:44:53,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 16:44:53,821 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 164 transitions. [2023-12-19 16:44:53,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-12-19 16:44:53,821 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 16:44:53,821 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] [2023-12-19 16:44:53,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-19 16:44:53,822 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2023-12-19 16:44:53,822 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 16:44:53,822 INFO L85 PathProgramCache]: Analyzing trace with hash 981268729, now seen corresponding path program 1 times [2023-12-19 16:44:53,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 16:44:53,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687637670] [2023-12-19 16:44:53,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 16:44:53,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 16:44:53,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:44:53,881 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-19 16:44:53,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 16:44:53,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687637670] [2023-12-19 16:44:53,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687637670] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 16:44:53,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 16:44:53,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 16:44:53,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472237205] [2023-12-19 16:44:53,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 16:44:53,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 16:44:53,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 16:44:53,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 16:44:53,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-19 16:44:53,883 INFO L87 Difference]: Start difference. First operand 142 states and 164 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 16:44:53,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 16:44:53,986 INFO L93 Difference]: Finished difference Result 191 states and 217 transitions. [2023-12-19 16:44:53,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 16:44:53,986 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 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 28 [2023-12-19 16:44:53,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 16:44:53,987 INFO L225 Difference]: With dead ends: 191 [2023-12-19 16:44:53,987 INFO L226 Difference]: Without dead ends: 175 [2023-12-19 16:44:53,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-19 16:44:53,988 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 23 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 16:44:53,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 229 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 16:44:53,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2023-12-19 16:44:54,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 161. [2023-12-19 16:44:54,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 156 states have (on average 1.205128205128205) internal successors, (188), 160 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 16:44:54,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 188 transitions. [2023-12-19 16:44:54,011 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 188 transitions. Word has length 28 [2023-12-19 16:44:54,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 16:44:54,011 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 188 transitions. [2023-12-19 16:44:54,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 16:44:54,011 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 188 transitions. [2023-12-19 16:44:54,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-12-19 16:44:54,011 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 16:44:54,011 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] [2023-12-19 16:44:54,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-19 16:44:54,012 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2023-12-19 16:44:54,012 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 16:44:54,012 INFO L85 PathProgramCache]: Analyzing trace with hash -984027121, now seen corresponding path program 1 times [2023-12-19 16:44:54,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 16:44:54,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546663087] [2023-12-19 16:44:54,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 16:44:54,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 16:44:54,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:44:54,064 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 16:44:54,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 16:44:54,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546663087] [2023-12-19 16:44:54,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546663087] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 16:44:54,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 16:44:54,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 16:44:54,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785013310] [2023-12-19 16:44:54,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 16:44:54,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 16:44:54,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 16:44:54,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 16:44:54,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 16:44:54,067 INFO L87 Difference]: Start difference. First operand 161 states and 188 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 16:44:54,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 16:44:54,102 INFO L93 Difference]: Finished difference Result 279 states and 334 transitions. [2023-12-19 16:44:54,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 16:44:54,103 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 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 30 [2023-12-19 16:44:54,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 16:44:54,103 INFO L225 Difference]: With dead ends: 279 [2023-12-19 16:44:54,104 INFO L226 Difference]: Without dead ends: 207 [2023-12-19 16:44:54,104 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 [2023-12-19 16:44:54,104 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 7 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 16:44:54,105 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 141 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 16:44:54,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2023-12-19 16:44:54,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 195. [2023-12-19 16:44:54,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 190 states have (on average 1.2157894736842105) internal successors, (231), 194 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 16:44:54,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 231 transitions. [2023-12-19 16:44:54,140 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 231 transitions. Word has length 30 [2023-12-19 16:44:54,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 16:44:54,140 INFO L495 AbstractCegarLoop]: Abstraction has 195 states and 231 transitions. [2023-12-19 16:44:54,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 16:44:54,140 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 231 transitions. [2023-12-19 16:44:54,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-19 16:44:54,141 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 16:44:54,141 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 16:44:54,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-19 16:44:54,141 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2023-12-19 16:44:54,141 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 16:44:54,142 INFO L85 PathProgramCache]: Analyzing trace with hash 536850794, now seen corresponding path program 1 times [2023-12-19 16:44:54,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 16:44:54,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531038147] [2023-12-19 16:44:54,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 16:44:54,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 16:44:54,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:44:54,236 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 16:44:54,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 16:44:54,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531038147] [2023-12-19 16:44:54,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531038147] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 16:44:54,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1903791856] [2023-12-19 16:44:54,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 16:44:54,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 16:44:54,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 16:44:54,240 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 16:44:54,241 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-19 16:44:54,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:44:54,338 INFO L262 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-19 16:44:54,340 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 16:44:54,346 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-19 16:44:54,351 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-19 16:44:54,367 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2023-12-19 16:44:54,373 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2023-12-19 16:44:54,462 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-19 16:44:54,462 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 16:44:54,519 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-19 16:44:54,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1903791856] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 16:44:54,520 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-19 16:44:54,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 3] total 7 [2023-12-19 16:44:54,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615341014] [2023-12-19 16:44:54,520 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-19 16:44:54,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 16:44:54,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 16:44:54,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 16:44:54,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-19 16:44:54,521 INFO L87 Difference]: Start difference. First operand 195 states and 231 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) 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) [2023-12-19 16:44:54,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 16:44:54,751 INFO L93 Difference]: Finished difference Result 320 states and 369 transitions. [2023-12-19 16:44:54,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-19 16:44:54,752 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) 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 31 [2023-12-19 16:44:54,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 16:44:54,753 INFO L225 Difference]: With dead ends: 320 [2023-12-19 16:44:54,753 INFO L226 Difference]: Without dead ends: 286 [2023-12-19 16:44:54,753 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-12-19 16:44:54,754 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 142 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 16:44:54,754 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 295 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 16:44:54,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2023-12-19 16:44:54,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 222. [2023-12-19 16:44:54,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 217 states have (on average 1.2211981566820276) internal successors, (265), 221 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 16:44:54,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 265 transitions. [2023-12-19 16:44:54,788 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 265 transitions. Word has length 31 [2023-12-19 16:44:54,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 16:44:54,788 INFO L495 AbstractCegarLoop]: Abstraction has 222 states and 265 transitions. [2023-12-19 16:44:54,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) 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) [2023-12-19 16:44:54,788 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 265 transitions. [2023-12-19 16:44:54,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-12-19 16:44:54,788 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 16:44:54,788 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 16:44:54,801 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-19 16:44:54,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 16:44:54,994 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2023-12-19 16:44:54,994 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 16:44:54,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1948386110, now seen corresponding path program 1 times [2023-12-19 16:44:54,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 16:44:54,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935902671] [2023-12-19 16:44:54,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 16:44:54,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 16:44:55,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:44:55,061 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 16:44:55,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 16:44:55,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935902671] [2023-12-19 16:44:55,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935902671] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 16:44:55,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 16:44:55,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 16:44:55,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913123445] [2023-12-19 16:44:55,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 16:44:55,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 16:44:55,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 16:44:55,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 16:44:55,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 16:44:55,062 INFO L87 Difference]: Start difference. First operand 222 states and 265 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 16:44:55,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 16:44:55,130 INFO L93 Difference]: Finished difference Result 291 states and 344 transitions. [2023-12-19 16:44:55,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 16:44:55,130 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 0 states have call successors, (0), 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 34 [2023-12-19 16:44:55,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 16:44:55,131 INFO L225 Difference]: With dead ends: 291 [2023-12-19 16:44:55,131 INFO L226 Difference]: Without dead ends: 138 [2023-12-19 16:44:55,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 16:44:55,131 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 5 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 16:44:55,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 200 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 16:44:55,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2023-12-19 16:44:55,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 137. [2023-12-19 16:44:55,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 133 states have (on average 1.1578947368421053) internal successors, (154), 136 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 16:44:55,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 154 transitions. [2023-12-19 16:44:55,148 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 154 transitions. Word has length 34 [2023-12-19 16:44:55,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 16:44:55,148 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 154 transitions. [2023-12-19 16:44:55,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 16:44:55,149 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 154 transitions. [2023-12-19 16:44:55,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-12-19 16:44:55,149 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 16:44:55,149 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 16:44:55,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-19 16:44:55,149 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2023-12-19 16:44:55,150 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 16:44:55,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1936567885, now seen corresponding path program 1 times [2023-12-19 16:44:55,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 16:44:55,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144112731] [2023-12-19 16:44:55,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 16:44:55,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 16:44:55,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:44:55,318 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 16:44:55,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 16:44:55,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144112731] [2023-12-19 16:44:55,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144112731] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 16:44:55,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 16:44:55,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 16:44:55,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601648028] [2023-12-19 16:44:55,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 16:44:55,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 16:44:55,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 16:44:55,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 16:44:55,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 16:44:55,320 INFO L87 Difference]: Start difference. First operand 137 states and 154 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 16:44:55,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 16:44:55,398 INFO L93 Difference]: Finished difference Result 223 states and 253 transitions. [2023-12-19 16:44:55,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 16:44:55,398 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 0 states have call successors, (0), 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 35 [2023-12-19 16:44:55,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 16:44:55,399 INFO L225 Difference]: With dead ends: 223 [2023-12-19 16:44:55,399 INFO L226 Difference]: Without dead ends: 146 [2023-12-19 16:44:55,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-19 16:44:55,400 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 14 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 16:44:55,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 214 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 16:44:55,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2023-12-19 16:44:55,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 139. [2023-12-19 16:44:55,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 135 states have (on average 1.1555555555555554) internal successors, (156), 138 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 16:44:55,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 156 transitions. [2023-12-19 16:44:55,418 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 156 transitions. Word has length 35 [2023-12-19 16:44:55,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 16:44:55,418 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 156 transitions. [2023-12-19 16:44:55,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 16:44:55,418 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 156 transitions. [2023-12-19 16:44:55,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-12-19 16:44:55,419 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 16:44:55,419 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 16:44:55,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-19 16:44:55,419 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2023-12-19 16:44:55,419 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 16:44:55,419 INFO L85 PathProgramCache]: Analyzing trace with hash -1337331057, now seen corresponding path program 1 times [2023-12-19 16:44:55,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 16:44:55,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891654991] [2023-12-19 16:44:55,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 16:44:55,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 16:44:55,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:44:55,833 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 16:44:55,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 16:44:55,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891654991] [2023-12-19 16:44:55,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891654991] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 16:44:55,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1507776336] [2023-12-19 16:44:55,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 16:44:55,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 16:44:55,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 16:44:55,835 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 16:44:55,850 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-19 16:44:55,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:44:55,951 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 39 conjunts are in the unsatisfiable core [2023-12-19 16:44:55,954 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 16:44:55,958 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-12-19 16:44:55,982 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-19 16:44:55,988 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-19 16:44:56,096 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-12-19 16:44:56,096 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2023-12-19 16:44:56,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:44:56,106 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 26 [2023-12-19 16:44:56,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:44:56,113 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 26 [2023-12-19 16:44:56,119 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2023-12-19 16:44:56,125 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2023-12-19 16:44:56,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:44:56,352 INFO L349 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2023-12-19 16:44:56,353 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 277 treesize of output 122 [2023-12-19 16:44:56,375 INFO L349 Elim1Store]: treesize reduction 179, result has 0.6 percent of original size [2023-12-19 16:44:56,376 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 353 treesize of output 228 [2023-12-19 16:44:56,384 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 24 [2023-12-19 16:44:56,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:44:56,392 INFO L349 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2023-12-19 16:44:56,393 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 283 treesize of output 128 [2023-12-19 16:44:56,408 INFO L349 Elim1Store]: treesize reduction 179, result has 0.6 percent of original size [2023-12-19 16:44:56,408 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 359 treesize of output 230 [2023-12-19 16:44:56,415 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 83 [2023-12-19 16:44:56,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:44:56,424 INFO L349 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2023-12-19 16:44:56,424 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 229 treesize of output 94 [2023-12-19 16:44:56,435 INFO L349 Elim1Store]: treesize reduction 108, result has 0.9 percent of original size [2023-12-19 16:44:56,436 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 241 treesize of output 176 [2023-12-19 16:44:56,442 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 40 [2023-12-19 16:44:56,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:44:56,462 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-19 16:44:56,462 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 251 treesize of output 111 [2023-12-19 16:44:56,489 INFO L349 Elim1Store]: treesize reduction 98, result has 10.1 percent of original size [2023-12-19 16:44:56,489 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 293 treesize of output 220 [2023-12-19 16:44:56,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:44:56,505 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 16 [2023-12-19 16:44:56,509 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 29 [2023-12-19 16:44:56,517 INFO L349 Elim1Store]: treesize reduction 4, result has 75.0 percent of original size [2023-12-19 16:44:56,517 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 22 [2023-12-19 16:44:56,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:44:56,549 INFO L349 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2023-12-19 16:44:56,549 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 299 treesize of output 132 [2023-12-19 16:44:56,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:44:56,565 INFO L349 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2023-12-19 16:44:56,565 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 305 treesize of output 138 [2023-12-19 16:44:56,802 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 16:44:56,802 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 16:44:57,035 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 16:44:57,035 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 118 treesize of output 131 [2023-12-19 16:44:57,072 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 1 [2023-12-19 16:44:57,400 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-19 16:44:57,404 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 16:44:57,404 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 58 treesize of output 51 [2023-12-19 16:44:57,407 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-19 16:44:57,410 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 16:44:57,410 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 689 treesize of output 559 [2023-12-19 16:44:57,426 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 16:44:57,426 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 370 treesize of output 302 [2023-12-19 16:44:57,435 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 16:44:57,435 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 285 treesize of output 267 [2023-12-19 16:44:57,441 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 259 treesize of output 231 [2023-12-19 16:44:57,558 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-19 16:44:57,562 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 16:44:57,562 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 58 treesize of output 64 [2023-12-19 16:44:57,565 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-19 16:44:57,570 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 16:44:57,570 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 45 treesize of output 51 [2023-12-19 16:44:57,574 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-19 16:44:57,574 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 74 [2023-12-19 16:44:57,578 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-19 16:44:57,581 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 16:44:57,581 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 496 treesize of output 462 [2023-12-19 16:44:57,591 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 200 treesize of output 192 [2023-12-19 16:44:57,596 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 138 treesize of output 130 [2023-12-19 16:44:57,599 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 184 treesize of output 160 [2023-12-19 16:44:57,603 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 171 treesize of output 147 [2023-12-19 16:44:57,607 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 90 [2023-12-19 16:44:57,768 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 16:44:57,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1507776336] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 16:44:57,769 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-19 16:44:57,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 20 [2023-12-19 16:44:57,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060045188] [2023-12-19 16:44:57,769 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-19 16:44:57,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-12-19 16:44:57,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 16:44:57,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-12-19 16:44:57,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=320, Unknown=9, NotChecked=0, Total=420 [2023-12-19 16:44:57,770 INFO L87 Difference]: Start difference. First operand 139 states and 156 transitions. Second operand has 21 states, 21 states have (on average 4.333333333333333) internal successors, (91), 20 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 16:44:59,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 16:44:59,601 INFO L93 Difference]: Finished difference Result 394 states and 439 transitions. [2023-12-19 16:44:59,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-19 16:44:59,603 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 4.333333333333333) internal successors, (91), 20 states have internal predecessors, (91), 0 states have call successors, (0), 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 35 [2023-12-19 16:44:59,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 16:44:59,604 INFO L225 Difference]: With dead ends: 394 [2023-12-19 16:44:59,604 INFO L226 Difference]: Without dead ends: 334 [2023-12-19 16:44:59,604 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=375, Invalid=1055, Unknown=52, NotChecked=0, Total=1482 [2023-12-19 16:44:59,605 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 626 mSDsluCounter, 741 mSDsCounter, 0 mSdLazyCounter, 543 mSolverCounterSat, 53 mSolverCounterUnsat, 115 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 626 SdHoareTripleChecker+Valid, 836 SdHoareTripleChecker+Invalid, 711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 543 IncrementalHoareTripleChecker+Invalid, 115 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-19 16:44:59,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [626 Valid, 836 Invalid, 711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 543 Invalid, 115 Unknown, 0 Unchecked, 1.0s Time] [2023-12-19 16:44:59,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2023-12-19 16:44:59,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 141. [2023-12-19 16:44:59,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 137 states have (on average 1.1532846715328466) internal successors, (158), 140 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 16:44:59,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 158 transitions. [2023-12-19 16:44:59,626 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 158 transitions. Word has length 35 [2023-12-19 16:44:59,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 16:44:59,626 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 158 transitions. [2023-12-19 16:44:59,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 4.333333333333333) internal successors, (91), 20 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 16:44:59,626 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 158 transitions. [2023-12-19 16:44:59,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-12-19 16:44:59,626 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 16:44:59,626 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 16:44:59,646 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-19 16:44:59,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 16:44:59,833 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2023-12-19 16:44:59,833 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 16:44:59,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1048858225, now seen corresponding path program 1 times [2023-12-19 16:44:59,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 16:44:59,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860164167] [2023-12-19 16:44:59,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 16:44:59,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 16:44:59,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:45:00,516 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 16:45:00,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 16:45:00,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860164167] [2023-12-19 16:45:00,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860164167] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 16:45:00,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [360178256] [2023-12-19 16:45:00,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 16:45:00,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 16:45:00,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 16:45:00,522 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 16:45:00,551 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-19 16:45:00,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:45:00,644 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 51 conjunts are in the unsatisfiable core [2023-12-19 16:45:00,646 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 16:45:00,649 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-12-19 16:45:00,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:45:00,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:45:00,683 INFO L349 Elim1Store]: treesize reduction 77, result has 8.3 percent of original size [2023-12-19 16:45:00,683 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 121 treesize of output 112 [2023-12-19 16:45:00,697 INFO L349 Elim1Store]: treesize reduction 26, result has 35.0 percent of original size [2023-12-19 16:45:00,697 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 29 [2023-12-19 16:45:00,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:45:00,705 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 41 [2023-12-19 16:45:00,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:45:00,886 INFO L349 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2023-12-19 16:45:00,887 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 78 treesize of output 69 [2023-12-19 16:45:00,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:45:00,895 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2023-12-19 16:45:00,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:45:00,908 INFO L349 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2023-12-19 16:45:00,908 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 77 treesize of output 62 [2023-12-19 16:45:00,930 INFO L349 Elim1Store]: treesize reduction 32, result has 45.8 percent of original size [2023-12-19 16:45:00,930 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 45 treesize of output 47 [2023-12-19 16:45:00,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:45:00,941 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-19 16:45:00,969 INFO L349 Elim1Store]: treesize reduction 8, result has 61.9 percent of original size [2023-12-19 16:45:00,970 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 22 [2023-12-19 16:45:01,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:45:01,167 INFO L349 Elim1Store]: treesize reduction 52, result has 22.4 percent of original size [2023-12-19 16:45:01,168 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 111 treesize of output 85 [2023-12-19 16:45:01,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:45:01,178 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 60 [2023-12-19 16:45:01,762 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 16:45:01,763 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 16:45:02,051 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 16:45:02,053 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 175 treesize of output 169 [2023-12-19 16:45:02,074 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 16:45:02,075 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 163 treesize of output 157 [2023-12-19 16:49:13,633 WARN L293 SmtUtils]: Spent 4.10m on a formula simplification. DAG size of input: 987 DAG size of output: 442 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-12-19 16:49:13,633 INFO L349 Elim1Store]: treesize reduction 75139, result has 20.8 percent of original size [2023-12-19 16:49:13,635 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 24 new quantified variables, introduced 122 case distinctions, treesize of input 1512007 treesize of output 1150966 Received shutdown request... [2023-12-19 16:59:26,094 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 [2023-12-19 16:59:26,094 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-19 16:59:26,324 WARN L235 SmtUtils]: Removed 110 from assertion stack [2023-12-19 16:59:26,326 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (12 of 13 remaining) [2023-12-19 16:59:26,336 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-19 16:59:26,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 16:59:26,527 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 36 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 2513 for 609036ms.. [2023-12-19 16:59:26,529 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (11 of 13 remaining) [2023-12-19 16:59:26,529 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (10 of 13 remaining) [2023-12-19 16:59:26,529 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (9 of 13 remaining) [2023-12-19 16:59:26,529 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (8 of 13 remaining) [2023-12-19 16:59:26,529 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (7 of 13 remaining) [2023-12-19 16:59:26,529 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (6 of 13 remaining) [2023-12-19 16:59:26,529 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (5 of 13 remaining) [2023-12-19 16:59:26,529 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION (4 of 13 remaining) [2023-12-19 16:59:26,529 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION (3 of 13 remaining) [2023-12-19 16:59:26,529 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION (2 of 13 remaining) [2023-12-19 16:59:26,529 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION (1 of 13 remaining) [2023-12-19 16:59:26,529 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION (0 of 13 remaining) [2023-12-19 16:59:26,532 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] [2023-12-19 16:59:26,533 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-19 16:59:26,535 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 04:59:26 BoogieIcfgContainer [2023-12-19 16:59:26,535 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-19 16:59:26,535 INFO L158 Benchmark]: Toolchain (without parser) took 878265.88ms. Allocated memory was 176.2MB in the beginning and 639.6MB in the end (delta: 463.5MB). Free memory was 129.5MB in the beginning and 538.0MB in the end (delta: -408.5MB). Peak memory consumption was 374.7MB. Max. memory is 8.0GB. [2023-12-19 16:59:26,535 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 176.2MB. Free memory is still 133.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-19 16:59:26,535 INFO L158 Benchmark]: CACSL2BoogieTranslator took 410.03ms. Allocated memory is still 176.2MB. Free memory was 129.5MB in the beginning and 108.5MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2023-12-19 16:59:26,535 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.48ms. Allocated memory is still 176.2MB. Free memory was 108.5MB in the beginning and 106.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-19 16:59:26,535 INFO L158 Benchmark]: Boogie Preprocessor took 53.84ms. Allocated memory is still 176.2MB. Free memory was 106.4MB in the beginning and 103.2MB in the end (delta: 3.3MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-19 16:59:26,536 INFO L158 Benchmark]: RCFGBuilder took 423.66ms. Allocated memory is still 176.2MB. Free memory was 102.7MB in the beginning and 81.3MB in the end (delta: 21.4MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2023-12-19 16:59:26,536 INFO L158 Benchmark]: TraceAbstraction took 877344.96ms. Allocated memory was 176.2MB in the beginning and 639.6MB in the end (delta: 463.5MB). Free memory was 80.2MB in the beginning and 538.0MB in the end (delta: -457.8MB). Peak memory consumption was 325.4MB. Max. memory is 8.0GB. [2023-12-19 16:59:26,536 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 176.2MB. Free memory is still 133.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 410.03ms. Allocated memory is still 176.2MB. Free memory was 129.5MB in the beginning and 108.5MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 29.48ms. Allocated memory is still 176.2MB. Free memory was 108.5MB in the beginning and 106.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 53.84ms. Allocated memory is still 176.2MB. Free memory was 106.4MB in the beginning and 103.2MB in the end (delta: 3.3MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 423.66ms. Allocated memory is still 176.2MB. Free memory was 102.7MB in the beginning and 81.3MB in the end (delta: 21.4MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * TraceAbstraction took 877344.96ms. Allocated memory was 176.2MB in the beginning and 639.6MB in the end (delta: 463.5MB). Free memory was 80.2MB in the beginning and 538.0MB in the end (delta: -457.8MB). Peak memory consumption was 325.4MB. 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: 1036]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 1036). Cancelled while NwaCegarLoop was analyzing trace of length 36 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 2513 for 609036ms.. - TimeoutResultAtElement [Line: 1004]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 1004). Cancelled while NwaCegarLoop was analyzing trace of length 36 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 2513 for 609036ms.. - TimeoutResultAtElement [Line: 1004]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 1004). Cancelled while NwaCegarLoop was analyzing trace of length 36 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 2513 for 609036ms.. - TimeoutResultAtElement [Line: 1015]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 1015). Cancelled while NwaCegarLoop was analyzing trace of length 36 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 2513 for 609036ms.. - TimeoutResultAtElement [Line: 1016]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 1016). Cancelled while NwaCegarLoop was analyzing trace of length 36 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 2513 for 609036ms.. - TimeoutResultAtElement [Line: 1016]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 1016). Cancelled while NwaCegarLoop was analyzing trace of length 36 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 2513 for 609036ms.. - TimeoutResultAtElement [Line: 1023]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 1023). Cancelled while NwaCegarLoop was analyzing trace of length 36 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 2513 for 609036ms.. - TimeoutResultAtElement [Line: 1035]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 1035). Cancelled while NwaCegarLoop was analyzing trace of length 36 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 2513 for 609036ms.. - TimeoutResultAtElement [Line: 1037]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 1037). Cancelled while NwaCegarLoop was analyzing trace of length 36 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 2513 for 609036ms.. - TimeoutResultAtElement [Line: 1040]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 1040). Cancelled while NwaCegarLoop was analyzing trace of length 36 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 2513 for 609036ms.. - TimeoutResultAtElement [Line: 1052]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 1052). Cancelled while NwaCegarLoop was analyzing trace of length 36 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 2513 for 609036ms.. - TimeoutResultAtElement [Line: 1053]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 1053). Cancelled while NwaCegarLoop was analyzing trace of length 36 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 2513 for 609036ms.. - TimeoutResultAtElement [Line: 1054]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 1054). Cancelled while NwaCegarLoop was analyzing trace of length 36 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 2513 for 609036ms.. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 80 locations, 13 error locations. Started 1 CEGAR loops. OverallTime: 877.3s, OverallIterations: 23, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 115 mSolverCounterUnknown, 1978 SdHoareTripleChecker+Valid, 2.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1978 mSDsluCounter, 4856 SdHoareTripleChecker+Invalid, 2.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3294 mSDsCounter, 117 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2011 IncrementalHoareTripleChecker+Invalid, 2243 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 117 mSolverCounterUnsat, 1562 mSDtfsCounter, 2011 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 327 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 303 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=222occurred in iteration=19, InterpolantAutomatonStates: 133, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 22 MinimizatonAttempts, 775 StatesRemovedByMinimization, 20 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 4.8s InterpolantComputationTime, 585 NumberOfCodeBlocks, 585 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 651 ConstructedInterpolants, 33 QuantifiedInterpolants, 9478 SizeOfPredicates, 18 NumberOfNonLiveVariables, 462 ConjunctsInSsa, 75 ConjunctsInUnsatCore, 28 InterpolantComputations, 19 PerfectInterpolantSequences, 21/34 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