/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-32.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 04:25:14,505 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 04:25:14,570 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 04:25:14,574 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 04:25:14,574 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 04:25:14,595 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 04:25:14,595 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 04:25:14,596 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 04:25:14,596 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 04:25:14,599 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 04:25:14,599 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 04:25:14,600 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 04:25:14,600 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 04:25:14,601 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 04:25:14,601 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 04:25:14,601 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 04:25:14,601 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 04:25:14,601 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 04:25:14,602 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 04:25:14,602 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 04:25:14,602 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 04:25:14,602 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 04:25:14,602 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 04:25:14,603 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 04:25:14,603 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 04:25:14,603 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 04:25:14,603 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 04:25:14,603 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 04:25:14,604 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 04:25:14,604 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 04:25:14,604 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 04:25:14,605 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 04:25:14,605 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 04:25:14,605 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 04:25:14,605 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 04:25:14,605 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 04:25:14,605 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 04:25:14,606 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 04:25:14,606 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 04:25:14,606 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 04:25:14,606 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 04:25:14,606 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 04:25:14,606 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 04:25:14,606 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 04:25:14,790 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 04:25:14,802 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 04:25:14,803 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 04:25:14,804 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 04:25:14,808 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 04:25:14,809 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-32.i [2023-12-16 04:25:15,973 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 04:25:16,242 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 04:25:16,243 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-32.i [2023-12-16 04:25:16,252 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4ba15d33/70345c6ad77f422385e641022369958a/FLAGb5d516e79 [2023-12-16 04:25:16,270 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4ba15d33/70345c6ad77f422385e641022369958a [2023-12-16 04:25:16,272 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 04:25:16,274 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 04:25:16,276 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 04:25:16,277 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 04:25:16,281 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 04:25:16,282 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:25:16" (1/1) ... [2023-12-16 04:25:16,283 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9557e6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:25:16, skipping insertion in model container [2023-12-16 04:25:16,283 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:25:16" (1/1) ... [2023-12-16 04:25:16,330 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 04:25:16,490 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-32.i[916,929] [2023-12-16 04:25:16,543 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 04:25:16,557 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 04:25:16,570 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-32.i[916,929] [2023-12-16 04:25:16,614 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 04:25:16,635 INFO L206 MainTranslator]: Completed translation [2023-12-16 04:25:16,635 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:25:16 WrapperNode [2023-12-16 04:25:16,635 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 04:25:16,637 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 04:25:16,637 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 04:25:16,637 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 04:25:16,643 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:25:16" (1/1) ... [2023-12-16 04:25:16,657 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:25:16" (1/1) ... [2023-12-16 04:25:16,699 INFO L138 Inliner]: procedures = 26, calls = 165, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 466 [2023-12-16 04:25:16,701 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 04:25:16,702 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 04:25:16,702 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 04:25:16,702 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 04:25:16,711 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:25:16" (1/1) ... [2023-12-16 04:25:16,712 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:25:16" (1/1) ... [2023-12-16 04:25:16,716 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:25:16" (1/1) ... [2023-12-16 04:25:16,759 INFO L175 MemorySlicer]: Split 124 memory accesses to 13 slices as follows [2, 7, 18, 20, 8, 8, 12, 12, 8, 6, 7, 10, 6]. 16 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]. The 15 writes are split as follows [0, 1, 1, 1, 1, 2, 1, 1, 1, 1, 3, 1, 1]. [2023-12-16 04:25:16,759 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:25:16" (1/1) ... [2023-12-16 04:25:16,759 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:25:16" (1/1) ... [2023-12-16 04:25:16,768 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:25:16" (1/1) ... [2023-12-16 04:25:16,771 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:25:16" (1/1) ... [2023-12-16 04:25:16,789 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:25:16" (1/1) ... [2023-12-16 04:25:16,791 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:25:16" (1/1) ... [2023-12-16 04:25:16,794 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 04:25:16,795 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 04:25:16,795 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 04:25:16,795 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 04:25:16,796 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:25:16" (1/1) ... [2023-12-16 04:25:16,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 04:25:16,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:25:16,849 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 04:25:16,864 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 04:25:16,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 04:25:16,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-16 04:25:16,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-16 04:25:16,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-12-16 04:25:16,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-12-16 04:25:16,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-12-16 04:25:16,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-12-16 04:25:16,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-12-16 04:25:16,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-12-16 04:25:16,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-12-16 04:25:16,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-12-16 04:25:16,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-12-16 04:25:16,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-12-16 04:25:16,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2023-12-16 04:25:16,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-16 04:25:16,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-16 04:25:16,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-12-16 04:25:16,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-12-16 04:25:16,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-12-16 04:25:16,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-12-16 04:25:16,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-12-16 04:25:16,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-12-16 04:25:16,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-12-16 04:25:16,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-12-16 04:25:16,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-12-16 04:25:16,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-12-16 04:25:16,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2023-12-16 04:25:16,875 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 04:25:16,876 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 04:25:16,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 04:25:16,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-16 04:25:16,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-16 04:25:16,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-16 04:25:16,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-12-16 04:25:16,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-12-16 04:25:16,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-12-16 04:25:16,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-12-16 04:25:16,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-12-16 04:25:16,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-12-16 04:25:16,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-12-16 04:25:16,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-12-16 04:25:16,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-12-16 04:25:16,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 04:25:16,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 04:25:16,988 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 04:25:16,990 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 04:25:17,490 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 04:25:17,513 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 04:25:17,513 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 04:25:17,513 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:25:17 BoogieIcfgContainer [2023-12-16 04:25:17,514 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 04:25:17,515 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 04:25:17,515 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 04:25:17,517 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 04:25:17,517 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 04:25:16" (1/3) ... [2023-12-16 04:25:17,517 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39195c72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:25:17, skipping insertion in model container [2023-12-16 04:25:17,518 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:25:16" (2/3) ... [2023-12-16 04:25:17,518 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39195c72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:25:17, skipping insertion in model container [2023-12-16 04:25:17,518 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:25:17" (3/3) ... [2023-12-16 04:25:17,518 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-32.i [2023-12-16 04:25:17,536 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 04:25:17,536 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 04:25:17,567 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 04:25:17,570 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;@7ccd007f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 04:25:17,571 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 04:25:17,573 INFO L276 IsEmpty]: Start isEmpty. Operand has 92 states, 71 states have (on average 1.408450704225352) internal successors, (100), 72 states have internal predecessors, (100), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-16 04:25:17,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-12-16 04:25:17,581 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:25:17,581 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:25:17,582 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:25:17,585 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:25:17,585 INFO L85 PathProgramCache]: Analyzing trace with hash -2144138923, now seen corresponding path program 1 times [2023-12-16 04:25:17,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:25:17,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480863609] [2023-12-16 04:25:17,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:25:17,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:25:17,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:17,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:25:17,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:17,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:25:17,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:17,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:25:17,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:17,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:25:17,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:17,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:25:17,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:17,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:25:17,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:17,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:25:17,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:17,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:25:17,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:17,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:25:17,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:17,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:25:17,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:17,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:25:17,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:17,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:25:17,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:17,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:25:17,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:17,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:25:17,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:17,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:25:17,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:17,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:25:17,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:17,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:25:17,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:17,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:25:17,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:17,908 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-16 04:25:17,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:25:17,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480863609] [2023-12-16 04:25:17,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480863609] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:25:17,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:25:17,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 04:25:17,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440395123] [2023-12-16 04:25:17,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:25:17,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 04:25:17,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:25:17,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 04:25:17,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 04:25:17,942 INFO L87 Difference]: Start difference. First operand has 92 states, 71 states have (on average 1.408450704225352) internal successors, (100), 72 states have internal predecessors, (100), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-16 04:25:17,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:25:17,983 INFO L93 Difference]: Finished difference Result 181 states and 288 transitions. [2023-12-16 04:25:17,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 04:25:17,985 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 124 [2023-12-16 04:25:17,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:25:17,990 INFO L225 Difference]: With dead ends: 181 [2023-12-16 04:25:17,990 INFO L226 Difference]: Without dead ends: 90 [2023-12-16 04:25:17,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 04:25:17,994 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:25:17,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 123 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:25:18,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2023-12-16 04:25:18,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2023-12-16 04:25:18,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 70 states have (on average 1.3) internal successors, (91), 70 states have internal predecessors, (91), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-16 04:25:18,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 127 transitions. [2023-12-16 04:25:18,028 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 127 transitions. Word has length 124 [2023-12-16 04:25:18,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:25:18,029 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 127 transitions. [2023-12-16 04:25:18,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-16 04:25:18,029 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 127 transitions. [2023-12-16 04:25:18,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-12-16 04:25:18,031 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:25:18,031 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:25:18,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 04:25:18,032 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:25:18,032 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:25:18,032 INFO L85 PathProgramCache]: Analyzing trace with hash -889367759, now seen corresponding path program 1 times [2023-12-16 04:25:18,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:25:18,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361157894] [2023-12-16 04:25:18,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:25:18,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:25:18,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:18,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:25:18,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:18,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:25:18,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:18,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:25:18,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:18,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:25:18,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:18,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:25:18,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:18,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:25:18,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:18,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:25:18,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:18,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:25:18,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:18,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:25:18,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:18,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:25:18,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:18,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:25:18,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:18,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:25:18,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:18,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:25:18,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:18,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:25:18,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:18,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:25:18,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:18,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:25:18,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:18,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:25:18,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:18,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:25:18,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:18,379 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-16 04:25:18,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:25:18,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361157894] [2023-12-16 04:25:18,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361157894] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:25:18,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:25:18,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 04:25:18,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618006939] [2023-12-16 04:25:18,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:25:18,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 04:25:18,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:25:18,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 04:25:18,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 04:25:18,382 INFO L87 Difference]: Start difference. First operand 90 states and 127 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-16 04:25:18,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:25:18,504 INFO L93 Difference]: Finished difference Result 306 states and 432 transitions. [2023-12-16 04:25:18,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 04:25:18,505 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 124 [2023-12-16 04:25:18,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:25:18,507 INFO L225 Difference]: With dead ends: 306 [2023-12-16 04:25:18,507 INFO L226 Difference]: Without dead ends: 217 [2023-12-16 04:25:18,508 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:25:18,508 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 206 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 04:25:18,509 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 350 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 04:25:18,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2023-12-16 04:25:18,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 185. [2023-12-16 04:25:18,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 146 states have (on average 1.3013698630136987) internal successors, (190), 146 states have internal predecessors, (190), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-12-16 04:25:18,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 262 transitions. [2023-12-16 04:25:18,533 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 262 transitions. Word has length 124 [2023-12-16 04:25:18,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:25:18,535 INFO L495 AbstractCegarLoop]: Abstraction has 185 states and 262 transitions. [2023-12-16 04:25:18,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-16 04:25:18,536 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 262 transitions. [2023-12-16 04:25:18,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-16 04:25:18,537 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:25:18,537 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:25:18,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 04:25:18,538 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:25:18,538 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:25:18,538 INFO L85 PathProgramCache]: Analyzing trace with hash 992937815, now seen corresponding path program 1 times [2023-12-16 04:25:18,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:25:18,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134222237] [2023-12-16 04:25:18,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:25:18,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:25:18,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:19,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:25:19,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:19,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:25:19,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:19,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:25:19,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:19,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:25:19,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:19,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:25:19,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:19,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:25:19,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:19,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:25:19,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:19,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:25:19,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:19,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:25:19,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:19,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:25:19,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:19,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:25:19,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:19,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:25:19,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:19,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:25:19,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:19,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:25:19,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:19,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:25:19,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:19,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:25:19,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:19,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:25:19,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:19,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:25:19,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:19,296 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-16 04:25:19,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:25:19,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134222237] [2023-12-16 04:25:19,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134222237] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:25:19,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:25:19,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-16 04:25:19,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016401504] [2023-12-16 04:25:19,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:25:19,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 04:25:19,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:25:19,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 04:25:19,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-12-16 04:25:19,310 INFO L87 Difference]: Start difference. First operand 185 states and 262 transitions. Second operand has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-16 04:25:19,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:25:19,665 INFO L93 Difference]: Finished difference Result 563 states and 799 transitions. [2023-12-16 04:25:19,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-16 04:25:19,666 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 132 [2023-12-16 04:25:19,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:25:19,668 INFO L225 Difference]: With dead ends: 563 [2023-12-16 04:25:19,669 INFO L226 Difference]: Without dead ends: 379 [2023-12-16 04:25:19,670 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=266, Unknown=0, NotChecked=0, Total=342 [2023-12-16 04:25:19,671 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 276 mSDsluCounter, 926 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 1049 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 04:25:19,671 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 1049 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 04:25:19,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2023-12-16 04:25:19,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 305. [2023-12-16 04:25:19,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 256 states have (on average 1.33203125) internal successors, (341), 258 states have internal predecessors, (341), 44 states have call successors, (44), 4 states have call predecessors, (44), 4 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2023-12-16 04:25:19,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 429 transitions. [2023-12-16 04:25:19,719 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 429 transitions. Word has length 132 [2023-12-16 04:25:19,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:25:19,719 INFO L495 AbstractCegarLoop]: Abstraction has 305 states and 429 transitions. [2023-12-16 04:25:19,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-16 04:25:19,720 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 429 transitions. [2023-12-16 04:25:19,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-16 04:25:19,721 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:25:19,721 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:25:19,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-16 04:25:19,722 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:25:19,722 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:25:19,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1563946672, now seen corresponding path program 1 times [2023-12-16 04:25:19,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:25:19,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676097425] [2023-12-16 04:25:19,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:25:19,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:25:19,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:20,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:25:20,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:20,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:25:20,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:20,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:25:20,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:20,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:25:20,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:20,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:25:20,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:20,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:25:20,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:20,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:25:20,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:20,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:25:20,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:20,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:25:20,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:20,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:25:20,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:20,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:25:20,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:20,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:25:20,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:20,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:25:20,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:20,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:25:20,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:20,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:25:20,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:20,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:25:20,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:20,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:25:20,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:20,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:25:20,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:20,600 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-16 04:25:20,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:25:20,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676097425] [2023-12-16 04:25:20,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676097425] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:25:20,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:25:20,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-16 04:25:20,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146390456] [2023-12-16 04:25:20,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:25:20,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-16 04:25:20,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:25:20,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-16 04:25:20,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-12-16 04:25:20,603 INFO L87 Difference]: Start difference. First operand 305 states and 429 transitions. Second operand has 12 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 12 states have internal predecessors, (47), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-16 04:25:21,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:25:21,115 INFO L93 Difference]: Finished difference Result 637 states and 891 transitions. [2023-12-16 04:25:21,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-16 04:25:21,115 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 12 states have internal predecessors, (47), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 134 [2023-12-16 04:25:21,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:25:21,118 INFO L225 Difference]: With dead ends: 637 [2023-12-16 04:25:21,118 INFO L226 Difference]: Without dead ends: 333 [2023-12-16 04:25:21,119 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=94, Invalid=248, Unknown=0, NotChecked=0, Total=342 [2023-12-16 04:25:21,119 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 456 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 456 SdHoareTripleChecker+Valid, 721 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 04:25:21,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [456 Valid, 721 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 04:25:21,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2023-12-16 04:25:21,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 303. [2023-12-16 04:25:21,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 254 states have (on average 1.3267716535433072) internal successors, (337), 256 states have internal predecessors, (337), 44 states have call successors, (44), 4 states have call predecessors, (44), 4 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2023-12-16 04:25:21,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 425 transitions. [2023-12-16 04:25:21,136 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 425 transitions. Word has length 134 [2023-12-16 04:25:21,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:25:21,155 INFO L495 AbstractCegarLoop]: Abstraction has 303 states and 425 transitions. [2023-12-16 04:25:21,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 12 states have internal predecessors, (47), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-16 04:25:21,155 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 425 transitions. [2023-12-16 04:25:21,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-16 04:25:21,156 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:25:21,156 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:25:21,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-16 04:25:21,157 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:25:21,157 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:25:21,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1420162732, now seen corresponding path program 1 times [2023-12-16 04:25:21,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:25:21,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242594616] [2023-12-16 04:25:21,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:25:21,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:25:21,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:21,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:25:21,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:21,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:25:21,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:21,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:25:21,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:21,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:25:21,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:21,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:25:21,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:21,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:25:21,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:21,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:25:21,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:21,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:25:21,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:21,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:25:21,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:21,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:25:21,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:21,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:25:21,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:21,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:25:21,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:21,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:25:21,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:21,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:25:21,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:21,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:25:21,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:21,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:25:21,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:21,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:25:21,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:21,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:25:21,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:21,293 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-16 04:25:21,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:25:21,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242594616] [2023-12-16 04:25:21,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242594616] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:25:21,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:25:21,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 04:25:21,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002080403] [2023-12-16 04:25:21,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:25:21,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 04:25:21,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:25:21,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 04:25:21,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:25:21,295 INFO L87 Difference]: Start difference. First operand 303 states and 425 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-16 04:25:21,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:25:21,335 INFO L93 Difference]: Finished difference Result 653 states and 917 transitions. [2023-12-16 04:25:21,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 04:25:21,335 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 134 [2023-12-16 04:25:21,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:25:21,337 INFO L225 Difference]: With dead ends: 653 [2023-12-16 04:25:21,337 INFO L226 Difference]: Without dead ends: 351 [2023-12-16 04:25:21,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-16 04:25:21,338 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 60 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:25:21,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 454 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:25:21,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2023-12-16 04:25:21,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 315. [2023-12-16 04:25:21,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 266 states have (on average 1.3120300751879699) internal successors, (349), 268 states have internal predecessors, (349), 44 states have call successors, (44), 4 states have call predecessors, (44), 4 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2023-12-16 04:25:21,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 437 transitions. [2023-12-16 04:25:21,352 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 437 transitions. Word has length 134 [2023-12-16 04:25:21,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:25:21,353 INFO L495 AbstractCegarLoop]: Abstraction has 315 states and 437 transitions. [2023-12-16 04:25:21,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-16 04:25:21,353 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 437 transitions. [2023-12-16 04:25:21,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-16 04:25:21,354 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:25:21,354 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:25:21,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-16 04:25:21,354 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:25:21,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:25:21,355 INFO L85 PathProgramCache]: Analyzing trace with hash -1966748496, now seen corresponding path program 1 times [2023-12-16 04:25:21,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:25:21,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830887801] [2023-12-16 04:25:21,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:25:21,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:25:21,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:22,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:25:22,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:22,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:25:22,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:22,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:25:22,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:22,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:25:22,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:22,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:25:22,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:22,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:25:22,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:22,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:25:22,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:22,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:25:22,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:22,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:25:22,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:22,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:25:22,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:22,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:25:22,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:22,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:25:22,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:22,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:25:22,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:22,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:25:22,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:22,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:25:22,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:22,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:25:22,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:22,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:25:22,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:22,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:25:22,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:22,109 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-16 04:25:22,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:25:22,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830887801] [2023-12-16 04:25:22,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830887801] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:25:22,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:25:22,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-12-16 04:25:22,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046516516] [2023-12-16 04:25:22,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:25:22,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-16 04:25:22,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:25:22,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-16 04:25:22,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2023-12-16 04:25:22,111 INFO L87 Difference]: Start difference. First operand 315 states and 437 transitions. Second operand has 15 states, 14 states have (on average 3.357142857142857) internal successors, (47), 15 states have internal predecessors, (47), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2023-12-16 04:25:23,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:25:23,291 INFO L93 Difference]: Finished difference Result 739 states and 1019 transitions. [2023-12-16 04:25:23,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-16 04:25:23,291 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.357142857142857) internal successors, (47), 15 states have internal predecessors, (47), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 134 [2023-12-16 04:25:23,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:25:23,293 INFO L225 Difference]: With dead ends: 739 [2023-12-16 04:25:23,293 INFO L226 Difference]: Without dead ends: 425 [2023-12-16 04:25:23,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=157, Invalid=599, Unknown=0, NotChecked=0, Total=756 [2023-12-16 04:25:23,295 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 451 mSDsluCounter, 1277 mSDsCounter, 0 mSdLazyCounter, 866 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 451 SdHoareTripleChecker+Valid, 1419 SdHoareTripleChecker+Invalid, 896 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 866 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 04:25:23,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [451 Valid, 1419 Invalid, 896 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 866 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 04:25:23,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2023-12-16 04:25:23,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 320. [2023-12-16 04:25:23,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 271 states have (on average 1.3062730627306274) internal successors, (354), 273 states have internal predecessors, (354), 44 states have call successors, (44), 4 states have call predecessors, (44), 4 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2023-12-16 04:25:23,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 442 transitions. [2023-12-16 04:25:23,312 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 442 transitions. Word has length 134 [2023-12-16 04:25:23,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:25:23,313 INFO L495 AbstractCegarLoop]: Abstraction has 320 states and 442 transitions. [2023-12-16 04:25:23,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.357142857142857) internal successors, (47), 15 states have internal predecessors, (47), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2023-12-16 04:25:23,313 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 442 transitions. [2023-12-16 04:25:23,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-16 04:25:23,314 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:25:23,314 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:25:23,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-16 04:25:23,314 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:25:23,314 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:25:23,314 INFO L85 PathProgramCache]: Analyzing trace with hash 909034632, now seen corresponding path program 1 times [2023-12-16 04:25:23,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:25:23,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633025846] [2023-12-16 04:25:23,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:25:23,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:25:23,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:24,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:25:24,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:24,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:25:24,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:24,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:25:24,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:24,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:25:24,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:24,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:25:24,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:24,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:25:24,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:24,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:25:24,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:24,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:25:24,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:24,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:25:24,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:24,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:25:24,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:24,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:25:24,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:24,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:25:24,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:24,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:25:24,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:24,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:25:24,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:24,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:25:24,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:24,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:25:24,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:24,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:25:24,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:24,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:25:24,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:24,044 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-16 04:25:24,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:25:24,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633025846] [2023-12-16 04:25:24,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633025846] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:25:24,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:25:24,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-12-16 04:25:24,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165948188] [2023-12-16 04:25:24,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:25:24,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-16 04:25:24,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:25:24,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-16 04:25:24,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2023-12-16 04:25:24,046 INFO L87 Difference]: Start difference. First operand 320 states and 442 transitions. Second operand has 15 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 15 states have internal predecessors, (48), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2023-12-16 04:25:25,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:25:25,896 INFO L93 Difference]: Finished difference Result 738 states and 1017 transitions. [2023-12-16 04:25:25,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-16 04:25:25,897 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 15 states have internal predecessors, (48), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 135 [2023-12-16 04:25:25,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:25:25,899 INFO L225 Difference]: With dead ends: 738 [2023-12-16 04:25:25,899 INFO L226 Difference]: Without dead ends: 586 [2023-12-16 04:25:25,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=186, Invalid=806, Unknown=0, NotChecked=0, Total=992 [2023-12-16 04:25:25,900 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 513 mSDsluCounter, 1551 mSDsCounter, 0 mSdLazyCounter, 959 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 513 SdHoareTripleChecker+Valid, 1730 SdHoareTripleChecker+Invalid, 972 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-16 04:25:25,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [513 Valid, 1730 Invalid, 972 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 959 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-16 04:25:25,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2023-12-16 04:25:25,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 333. [2023-12-16 04:25:25,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 284 states have (on average 1.3098591549295775) internal successors, (372), 286 states have internal predecessors, (372), 44 states have call successors, (44), 4 states have call predecessors, (44), 4 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2023-12-16 04:25:25,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 460 transitions. [2023-12-16 04:25:25,925 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 460 transitions. Word has length 135 [2023-12-16 04:25:25,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:25:25,926 INFO L495 AbstractCegarLoop]: Abstraction has 333 states and 460 transitions. [2023-12-16 04:25:25,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 15 states have internal predecessors, (48), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2023-12-16 04:25:25,926 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 460 transitions. [2023-12-16 04:25:25,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-16 04:25:25,928 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:25:25,928 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:25:25,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-16 04:25:25,929 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:25:25,929 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:25:25,929 INFO L85 PathProgramCache]: Analyzing trace with hash 2098488615, now seen corresponding path program 1 times [2023-12-16 04:25:25,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:25:25,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55498402] [2023-12-16 04:25:25,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:25:25,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:25:26,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:26,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:25:26,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:26,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:25:26,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:26,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:25:26,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:26,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:25:26,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:26,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:25:26,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:26,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:25:26,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:26,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:25:26,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:26,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:25:26,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:26,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:25:26,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:26,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:25:26,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:26,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:25:26,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:26,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:25:26,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:26,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:25:26,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:26,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:25:26,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:26,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:25:26,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:26,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:25:26,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:26,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:25:26,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:26,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:25:26,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:26,855 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-16 04:25:26,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:25:26,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55498402] [2023-12-16 04:25:26,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55498402] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:25:26,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:25:26,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-12-16 04:25:26,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38810302] [2023-12-16 04:25:26,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:25:26,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-16 04:25:26,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:25:26,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-16 04:25:26,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2023-12-16 04:25:26,856 INFO L87 Difference]: Start difference. First operand 333 states and 460 transitions. Second operand has 15 states, 14 states have (on average 3.5) internal successors, (49), 15 states have internal predecessors, (49), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2023-12-16 04:25:28,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:25:28,280 INFO L93 Difference]: Finished difference Result 768 states and 1039 transitions. [2023-12-16 04:25:28,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 04:25:28,280 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.5) internal successors, (49), 15 states have internal predecessors, (49), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 136 [2023-12-16 04:25:28,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:25:28,282 INFO L225 Difference]: With dead ends: 768 [2023-12-16 04:25:28,282 INFO L226 Difference]: Without dead ends: 436 [2023-12-16 04:25:28,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=145, Invalid=557, Unknown=0, NotChecked=0, Total=702 [2023-12-16 04:25:28,283 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 422 mSDsluCounter, 1030 mSDsCounter, 0 mSdLazyCounter, 860 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 1150 SdHoareTripleChecker+Invalid, 887 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 860 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:25:28,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [422 Valid, 1150 Invalid, 887 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 860 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-16 04:25:28,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2023-12-16 04:25:28,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 403. [2023-12-16 04:25:28,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 342 states have (on average 1.2836257309941521) internal successors, (439), 346 states have internal predecessors, (439), 52 states have call successors, (52), 8 states have call predecessors, (52), 8 states have return successors, (52), 48 states have call predecessors, (52), 52 states have call successors, (52) [2023-12-16 04:25:28,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 543 transitions. [2023-12-16 04:25:28,355 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 543 transitions. Word has length 136 [2023-12-16 04:25:28,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:25:28,357 INFO L495 AbstractCegarLoop]: Abstraction has 403 states and 543 transitions. [2023-12-16 04:25:28,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.5) internal successors, (49), 15 states have internal predecessors, (49), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2023-12-16 04:25:28,358 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 543 transitions. [2023-12-16 04:25:28,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-16 04:25:28,359 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:25:28,359 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:25:28,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-16 04:25:28,359 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:25:28,359 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:25:28,359 INFO L85 PathProgramCache]: Analyzing trace with hash -1941406328, now seen corresponding path program 1 times [2023-12-16 04:25:28,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:25:28,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082990449] [2023-12-16 04:25:28,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:25:28,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:25:28,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:28,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:25:28,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:28,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:25:28,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:28,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:25:28,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:28,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:25:28,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:28,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:25:28,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:28,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:25:28,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:28,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:25:28,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:28,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:25:28,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:28,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:25:28,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:28,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:25:28,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:28,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:25:28,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:28,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:25:28,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:28,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:25:28,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:28,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:25:28,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:28,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:25:28,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:28,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:25:28,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:28,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:25:28,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:28,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:25:28,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:28,863 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-16 04:25:28,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:25:28,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082990449] [2023-12-16 04:25:28,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082990449] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:25:28,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:25:28,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 04:25:28,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182091404] [2023-12-16 04:25:28,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:25:28,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 04:25:28,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:25:28,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 04:25:28,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-16 04:25:28,865 INFO L87 Difference]: Start difference. First operand 403 states and 543 transitions. Second operand has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2023-12-16 04:25:29,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:25:29,185 INFO L93 Difference]: Finished difference Result 615 states and 816 transitions. [2023-12-16 04:25:29,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 04:25:29,185 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 136 [2023-12-16 04:25:29,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:25:29,188 INFO L225 Difference]: With dead ends: 615 [2023-12-16 04:25:29,188 INFO L226 Difference]: Without dead ends: 613 [2023-12-16 04:25:29,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2023-12-16 04:25:29,189 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 223 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 651 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 04:25:29,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 651 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 04:25:29,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2023-12-16 04:25:29,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 609. [2023-12-16 04:25:29,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 609 states, 523 states have (on average 1.2676864244741874) internal successors, (663), 531 states have internal predecessors, (663), 72 states have call successors, (72), 13 states have call predecessors, (72), 13 states have return successors, (72), 64 states have call predecessors, (72), 72 states have call successors, (72) [2023-12-16 04:25:29,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 807 transitions. [2023-12-16 04:25:29,234 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 807 transitions. Word has length 136 [2023-12-16 04:25:29,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:25:29,235 INFO L495 AbstractCegarLoop]: Abstraction has 609 states and 807 transitions. [2023-12-16 04:25:29,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2023-12-16 04:25:29,235 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 807 transitions. [2023-12-16 04:25:29,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-16 04:25:29,236 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:25:29,236 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:25:29,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-16 04:25:29,236 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:25:29,236 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:25:29,236 INFO L85 PathProgramCache]: Analyzing trace with hash 573751753, now seen corresponding path program 1 times [2023-12-16 04:25:29,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:25:29,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66855875] [2023-12-16 04:25:29,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:25:29,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:25:29,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:29,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:25:29,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:29,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:25:29,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:29,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:25:29,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:29,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:25:29,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:29,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:25:29,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:29,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:25:29,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:29,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:25:29,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:29,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:25:29,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:29,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:25:29,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:29,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:25:29,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:29,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:25:29,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:29,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:25:29,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:29,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:25:29,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:29,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:25:29,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:29,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:25:29,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:29,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:25:29,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:29,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:25:29,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:29,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:25:29,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:29,779 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-16 04:25:29,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:25:29,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66855875] [2023-12-16 04:25:29,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66855875] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:25:29,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:25:29,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-16 04:25:29,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570571725] [2023-12-16 04:25:29,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:25:29,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-16 04:25:29,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:25:29,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-16 04:25:29,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2023-12-16 04:25:29,780 INFO L87 Difference]: Start difference. First operand 609 states and 807 transitions. Second operand has 13 states, 13 states have (on average 3.769230769230769) internal successors, (49), 13 states have internal predecessors, (49), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-16 04:25:30,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:25:30,428 INFO L93 Difference]: Finished difference Result 1495 states and 1991 transitions. [2023-12-16 04:25:30,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-16 04:25:30,428 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.769230769230769) internal successors, (49), 13 states have internal predecessors, (49), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 136 [2023-12-16 04:25:30,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:25:30,431 INFO L225 Difference]: With dead ends: 1495 [2023-12-16 04:25:30,431 INFO L226 Difference]: Without dead ends: 891 [2023-12-16 04:25:30,433 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=110, Invalid=442, Unknown=0, NotChecked=0, Total=552 [2023-12-16 04:25:30,433 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 285 mSDsluCounter, 1663 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 1825 SdHoareTripleChecker+Invalid, 559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 04:25:30,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 1825 Invalid, 559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 557 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 04:25:30,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 891 states. [2023-12-16 04:25:30,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 891 to 634. [2023-12-16 04:25:30,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 634 states, 548 states have (on average 1.2682481751824817) internal successors, (695), 556 states have internal predecessors, (695), 72 states have call successors, (72), 13 states have call predecessors, (72), 13 states have return successors, (72), 64 states have call predecessors, (72), 72 states have call successors, (72) [2023-12-16 04:25:30,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 839 transitions. [2023-12-16 04:25:30,507 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 839 transitions. Word has length 136 [2023-12-16 04:25:30,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:25:30,507 INFO L495 AbstractCegarLoop]: Abstraction has 634 states and 839 transitions. [2023-12-16 04:25:30,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.769230769230769) internal successors, (49), 13 states have internal predecessors, (49), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-16 04:25:30,507 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 839 transitions. [2023-12-16 04:25:30,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-16 04:25:30,508 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:25:30,508 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:25:30,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-16 04:25:30,509 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:25:30,509 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:25:30,509 INFO L85 PathProgramCache]: Analyzing trace with hash -359293278, now seen corresponding path program 1 times [2023-12-16 04:25:30,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:25:30,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841138088] [2023-12-16 04:25:30,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:25:30,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:25:30,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:32,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:25:32,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:32,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:25:32,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:32,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:25:32,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:32,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:25:32,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:32,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:25:32,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:32,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:25:32,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:32,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:25:32,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:32,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:25:32,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:32,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:25:32,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:32,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:25:32,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:32,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:25:32,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:32,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:25:32,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:32,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:25:32,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:32,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:25:32,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:32,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:25:32,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:32,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:25:32,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:32,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:25:32,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:32,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:25:32,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:32,286 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-16 04:25:32,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:25:32,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841138088] [2023-12-16 04:25:32,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841138088] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:25:32,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:25:32,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2023-12-16 04:25:32,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246286363] [2023-12-16 04:25:32,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:25:32,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-16 04:25:32,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:25:32,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-16 04:25:32,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=480, Unknown=0, NotChecked=0, Total=552 [2023-12-16 04:25:32,288 INFO L87 Difference]: Start difference. First operand 634 states and 839 transitions. Second operand has 24 states, 22 states have (on average 2.227272727272727) internal successors, (49), 24 states have internal predecessors, (49), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 7 states have call successors, (18) [2023-12-16 04:25:40,981 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-16 04:25:42,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-16 04:25:43,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:25:43,044 INFO L93 Difference]: Finished difference Result 1517 states and 2005 transitions. [2023-12-16 04:25:43,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-12-16 04:25:43,044 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 22 states have (on average 2.227272727272727) internal successors, (49), 24 states have internal predecessors, (49), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 7 states have call successors, (18) Word has length 136 [2023-12-16 04:25:43,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:25:43,059 INFO L225 Difference]: With dead ends: 1517 [2023-12-16 04:25:43,059 INFO L226 Difference]: Without dead ends: 888 [2023-12-16 04:25:43,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 373 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=343, Invalid=1727, Unknown=0, NotChecked=0, Total=2070 [2023-12-16 04:25:43,061 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 588 mSDsluCounter, 2133 mSDsCounter, 0 mSdLazyCounter, 1852 mSolverCounterSat, 48 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 588 SdHoareTripleChecker+Valid, 2296 SdHoareTripleChecker+Invalid, 1901 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1852 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2023-12-16 04:25:43,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [588 Valid, 2296 Invalid, 1901 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1852 Invalid, 1 Unknown, 0 Unchecked, 8.3s Time] [2023-12-16 04:25:43,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 888 states. [2023-12-16 04:25:43,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 888 to 643. [2023-12-16 04:25:43,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 643 states, 557 states have (on average 1.2692998204667865) internal successors, (707), 565 states have internal predecessors, (707), 72 states have call successors, (72), 13 states have call predecessors, (72), 13 states have return successors, (72), 64 states have call predecessors, (72), 72 states have call successors, (72) [2023-12-16 04:25:43,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 851 transitions. [2023-12-16 04:25:43,112 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 851 transitions. Word has length 136 [2023-12-16 04:25:43,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:25:43,113 INFO L495 AbstractCegarLoop]: Abstraction has 643 states and 851 transitions. [2023-12-16 04:25:43,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 22 states have (on average 2.227272727272727) internal successors, (49), 24 states have internal predecessors, (49), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 7 states have call successors, (18) [2023-12-16 04:25:43,113 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 851 transitions. [2023-12-16 04:25:43,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-16 04:25:43,114 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:25:43,115 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:25:43,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-16 04:25:43,115 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:25:43,115 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:25:43,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1981515887, now seen corresponding path program 1 times [2023-12-16 04:25:43,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:25:43,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96907720] [2023-12-16 04:25:43,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:25:43,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:25:43,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:43,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:25:43,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:43,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:25:43,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:43,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:25:43,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:43,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:25:43,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:43,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:25:43,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:43,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:25:43,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:43,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:25:43,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:43,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:25:43,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:43,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:25:43,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:43,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:25:43,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:43,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:25:43,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:43,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:25:43,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:43,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:25:43,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:43,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:25:43,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:43,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:25:43,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:43,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:25:43,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:43,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:25:43,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:43,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:25:43,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:43,563 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-16 04:25:43,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:25:43,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96907720] [2023-12-16 04:25:43,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96907720] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:25:43,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:25:43,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-16 04:25:43,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856583781] [2023-12-16 04:25:43,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:25:43,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-16 04:25:43,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:25:43,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-16 04:25:43,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-12-16 04:25:43,565 INFO L87 Difference]: Start difference. First operand 643 states and 851 transitions. Second operand has 11 states, 10 states have (on average 5.0) internal successors, (50), 11 states have internal predecessors, (50), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2023-12-16 04:25:44,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:25:44,094 INFO L93 Difference]: Finished difference Result 1374 states and 1842 transitions. [2023-12-16 04:25:44,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-16 04:25:44,095 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.0) internal successors, (50), 11 states have internal predecessors, (50), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 137 [2023-12-16 04:25:44,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:25:44,098 INFO L225 Difference]: With dead ends: 1374 [2023-12-16 04:25:44,098 INFO L226 Difference]: Without dead ends: 1086 [2023-12-16 04:25:44,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=149, Invalid=451, Unknown=0, NotChecked=0, Total=600 [2023-12-16 04:25:44,100 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 388 mSDsluCounter, 941 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 1117 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 04:25:44,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [388 Valid, 1117 Invalid, 474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 04:25:44,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1086 states. [2023-12-16 04:25:44,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1086 to 911. [2023-12-16 04:25:44,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 911 states, 799 states have (on average 1.2765957446808511) internal successors, (1020), 811 states have internal predecessors, (1020), 94 states have call successors, (94), 17 states have call predecessors, (94), 17 states have return successors, (94), 82 states have call predecessors, (94), 94 states have call successors, (94) [2023-12-16 04:25:44,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 911 states to 911 states and 1208 transitions. [2023-12-16 04:25:44,196 INFO L78 Accepts]: Start accepts. Automaton has 911 states and 1208 transitions. Word has length 137 [2023-12-16 04:25:44,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:25:44,196 INFO L495 AbstractCegarLoop]: Abstraction has 911 states and 1208 transitions. [2023-12-16 04:25:44,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.0) internal successors, (50), 11 states have internal predecessors, (50), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2023-12-16 04:25:44,196 INFO L276 IsEmpty]: Start isEmpty. Operand 911 states and 1208 transitions. [2023-12-16 04:25:44,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-16 04:25:44,211 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:25:44,211 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:25:44,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-16 04:25:44,211 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:25:44,211 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:25:44,211 INFO L85 PathProgramCache]: Analyzing trace with hash 506640274, now seen corresponding path program 1 times [2023-12-16 04:25:44,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:25:44,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509438982] [2023-12-16 04:25:44,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:25:44,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:25:44,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:44,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:25:44,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:44,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:25:44,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:44,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:25:44,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:44,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:25:44,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:44,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:25:44,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:44,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:25:44,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:44,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:25:44,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:44,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:25:44,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:44,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:25:44,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:44,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:25:44,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:44,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:25:44,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:44,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:25:44,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:44,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:25:44,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:44,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:25:44,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:44,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:25:44,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:44,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:25:44,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:44,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:25:44,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:44,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:25:44,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:44,923 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-16 04:25:44,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:25:44,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509438982] [2023-12-16 04:25:44,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509438982] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:25:44,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:25:44,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 04:25:44,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162014501] [2023-12-16 04:25:44,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:25:44,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 04:25:44,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:25:44,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 04:25:44,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-12-16 04:25:44,924 INFO L87 Difference]: Start difference. First operand 911 states and 1208 transitions. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-16 04:25:45,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:25:45,335 INFO L93 Difference]: Finished difference Result 2203 states and 2929 transitions. [2023-12-16 04:25:45,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-16 04:25:45,335 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 137 [2023-12-16 04:25:45,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:25:45,339 INFO L225 Difference]: With dead ends: 2203 [2023-12-16 04:25:45,339 INFO L226 Difference]: Without dead ends: 1297 [2023-12-16 04:25:45,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2023-12-16 04:25:45,340 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 205 mSDsluCounter, 876 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 1036 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 04:25:45,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 1036 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 04:25:45,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1297 states. [2023-12-16 04:25:45,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1297 to 892. [2023-12-16 04:25:45,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 892 states, 780 states have (on average 1.2705128205128204) internal successors, (991), 792 states have internal predecessors, (991), 94 states have call successors, (94), 17 states have call predecessors, (94), 17 states have return successors, (94), 82 states have call predecessors, (94), 94 states have call successors, (94) [2023-12-16 04:25:45,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 892 states to 892 states and 1179 transitions. [2023-12-16 04:25:45,391 INFO L78 Accepts]: Start accepts. Automaton has 892 states and 1179 transitions. Word has length 137 [2023-12-16 04:25:45,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:25:45,392 INFO L495 AbstractCegarLoop]: Abstraction has 892 states and 1179 transitions. [2023-12-16 04:25:45,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-16 04:25:45,392 INFO L276 IsEmpty]: Start isEmpty. Operand 892 states and 1179 transitions. [2023-12-16 04:25:45,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-16 04:25:45,393 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:25:45,393 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:25:45,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-16 04:25:45,393 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:25:45,393 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:25:45,394 INFO L85 PathProgramCache]: Analyzing trace with hash 368236730, now seen corresponding path program 1 times [2023-12-16 04:25:45,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:25:45,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310742961] [2023-12-16 04:25:45,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:25:45,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:25:45,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:45,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:25:45,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:45,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:25:45,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:45,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:25:45,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:45,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:25:45,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:45,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:25:45,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:45,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:25:45,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:45,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:25:45,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:45,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:25:45,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:45,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:25:45,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:45,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:25:45,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:45,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:25:45,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:45,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:25:45,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:45,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:25:45,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:45,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:25:45,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:45,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:25:45,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:45,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:25:45,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:45,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:25:45,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:45,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:25:45,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:45,587 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-16 04:25:45,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:25:45,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310742961] [2023-12-16 04:25:45,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310742961] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:25:45,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:25:45,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 04:25:45,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498620388] [2023-12-16 04:25:45,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:25:45,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 04:25:45,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:25:45,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 04:25:45,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:25:45,590 INFO L87 Difference]: Start difference. First operand 892 states and 1179 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-16 04:25:45,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:25:45,734 INFO L93 Difference]: Finished difference Result 1793 states and 2364 transitions. [2023-12-16 04:25:45,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 04:25:45,735 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 138 [2023-12-16 04:25:45,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:25:45,737 INFO L225 Difference]: With dead ends: 1793 [2023-12-16 04:25:45,737 INFO L226 Difference]: Without dead ends: 906 [2023-12-16 04:25:45,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 04:25:45,739 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 45 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 04:25:45,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 493 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 04:25:45,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 906 states. [2023-12-16 04:25:45,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 906 to 892. [2023-12-16 04:25:45,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 892 states, 780 states have (on average 1.2628205128205128) internal successors, (985), 792 states have internal predecessors, (985), 94 states have call successors, (94), 17 states have call predecessors, (94), 17 states have return successors, (94), 82 states have call predecessors, (94), 94 states have call successors, (94) [2023-12-16 04:25:45,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 892 states to 892 states and 1173 transitions. [2023-12-16 04:25:45,790 INFO L78 Accepts]: Start accepts. Automaton has 892 states and 1173 transitions. Word has length 138 [2023-12-16 04:25:45,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:25:45,790 INFO L495 AbstractCegarLoop]: Abstraction has 892 states and 1173 transitions. [2023-12-16 04:25:45,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-16 04:25:45,790 INFO L276 IsEmpty]: Start isEmpty. Operand 892 states and 1173 transitions. [2023-12-16 04:25:45,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-16 04:25:45,792 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:25:45,792 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:25:45,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-16 04:25:45,793 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:25:45,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:25:45,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1513506001, now seen corresponding path program 1 times [2023-12-16 04:25:45,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:25:45,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424623255] [2023-12-16 04:25:45,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:25:45,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:25:45,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:45,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:25:45,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:45,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:25:45,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:45,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:25:45,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:45,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:25:45,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:45,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:25:45,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:45,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:25:45,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:45,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:25:45,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:45,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:25:45,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:45,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:25:45,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:45,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:25:45,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:45,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:25:45,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:45,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:25:45,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:45,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:25:45,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:45,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:25:45,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:45,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:25:45,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:45,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:25:45,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:45,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:25:45,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:45,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:25:45,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:45,945 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-16 04:25:45,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:25:45,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424623255] [2023-12-16 04:25:45,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424623255] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:25:45,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:25:45,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 04:25:45,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565549443] [2023-12-16 04:25:45,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:25:45,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 04:25:45,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:25:45,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 04:25:45,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:25:45,946 INFO L87 Difference]: Start difference. First operand 892 states and 1173 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-16 04:25:46,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:25:46,077 INFO L93 Difference]: Finished difference Result 2388 states and 3145 transitions. [2023-12-16 04:25:46,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 04:25:46,078 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 138 [2023-12-16 04:25:46,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:25:46,082 INFO L225 Difference]: With dead ends: 2388 [2023-12-16 04:25:46,082 INFO L226 Difference]: Without dead ends: 1501 [2023-12-16 04:25:46,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 04:25:46,085 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 96 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 646 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 04:25:46,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 646 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 04:25:46,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1501 states. [2023-12-16 04:25:46,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1501 to 1277. [2023-12-16 04:25:46,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1277 states, 1113 states have (on average 1.2533692722371967) internal successors, (1395), 1132 states have internal predecessors, (1395), 138 states have call successors, (138), 25 states have call predecessors, (138), 25 states have return successors, (138), 119 states have call predecessors, (138), 138 states have call successors, (138) [2023-12-16 04:25:46,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1277 states to 1277 states and 1671 transitions. [2023-12-16 04:25:46,160 INFO L78 Accepts]: Start accepts. Automaton has 1277 states and 1671 transitions. Word has length 138 [2023-12-16 04:25:46,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:25:46,161 INFO L495 AbstractCegarLoop]: Abstraction has 1277 states and 1671 transitions. [2023-12-16 04:25:46,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-16 04:25:46,161 INFO L276 IsEmpty]: Start isEmpty. Operand 1277 states and 1671 transitions. [2023-12-16 04:25:46,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-16 04:25:46,162 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:25:46,162 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:25:46,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-16 04:25:46,162 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:25:46,162 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:25:46,162 INFO L85 PathProgramCache]: Analyzing trace with hash -546772243, now seen corresponding path program 1 times [2023-12-16 04:25:46,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:25:46,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875589059] [2023-12-16 04:25:46,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:25:46,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:25:46,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:46,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:25:46,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:46,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:25:46,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:46,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:25:46,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:46,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:25:46,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:46,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:25:46,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:46,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:25:46,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:46,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:25:46,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:46,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:25:46,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:46,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:25:46,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:46,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:25:46,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:46,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:25:46,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:46,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:25:46,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:46,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:25:46,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:46,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:25:46,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:46,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:25:46,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:46,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:25:46,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:46,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:25:46,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:46,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:25:46,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:46,285 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-16 04:25:46,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:25:46,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875589059] [2023-12-16 04:25:46,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875589059] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:25:46,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:25:46,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 04:25:46,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312621284] [2023-12-16 04:25:46,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:25:46,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 04:25:46,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:25:46,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 04:25:46,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 04:25:46,287 INFO L87 Difference]: Start difference. First operand 1277 states and 1671 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-16 04:25:46,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:25:46,451 INFO L93 Difference]: Finished difference Result 3011 states and 3941 transitions. [2023-12-16 04:25:46,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 04:25:46,452 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 139 [2023-12-16 04:25:46,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:25:46,456 INFO L225 Difference]: With dead ends: 3011 [2023-12-16 04:25:46,456 INFO L226 Difference]: Without dead ends: 1739 [2023-12-16 04:25:46,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2023-12-16 04:25:46,458 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 94 mSDsluCounter, 564 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:25:46,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 695 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:25:46,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1739 states. [2023-12-16 04:25:46,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1739 to 1309. [2023-12-16 04:25:46,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1309 states, 1145 states have (on average 1.246288209606987) internal successors, (1427), 1164 states have internal predecessors, (1427), 138 states have call successors, (138), 25 states have call predecessors, (138), 25 states have return successors, (138), 119 states have call predecessors, (138), 138 states have call successors, (138) [2023-12-16 04:25:46,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1309 states to 1309 states and 1703 transitions. [2023-12-16 04:25:46,531 INFO L78 Accepts]: Start accepts. Automaton has 1309 states and 1703 transitions. Word has length 139 [2023-12-16 04:25:46,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:25:46,532 INFO L495 AbstractCegarLoop]: Abstraction has 1309 states and 1703 transitions. [2023-12-16 04:25:46,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-16 04:25:46,532 INFO L276 IsEmpty]: Start isEmpty. Operand 1309 states and 1703 transitions. [2023-12-16 04:25:46,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-16 04:25:46,533 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:25:46,533 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:25:46,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-16 04:25:46,533 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:25:46,533 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:25:46,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1226830613, now seen corresponding path program 1 times [2023-12-16 04:25:46,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:25:46,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778233973] [2023-12-16 04:25:46,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:25:46,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:25:46,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:46,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:25:46,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:46,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:25:46,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:46,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:25:46,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:46,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:25:46,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:46,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:25:46,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:46,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:25:46,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:46,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:25:46,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:46,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:25:46,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:46,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:25:46,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:46,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:25:46,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:46,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:25:46,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:46,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:25:46,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:46,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:25:46,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:46,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:25:46,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:46,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:25:46,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:46,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:25:46,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:46,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:25:46,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:46,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:25:46,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:46,667 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-16 04:25:46,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:25:46,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778233973] [2023-12-16 04:25:46,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778233973] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:25:46,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:25:46,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 04:25:46,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631169698] [2023-12-16 04:25:46,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:25:46,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 04:25:46,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:25:46,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 04:25:46,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:25:46,670 INFO L87 Difference]: Start difference. First operand 1309 states and 1703 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-16 04:25:46,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:25:46,803 INFO L93 Difference]: Finished difference Result 2221 states and 2904 transitions. [2023-12-16 04:25:46,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 04:25:46,804 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 139 [2023-12-16 04:25:46,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:25:46,807 INFO L225 Difference]: With dead ends: 2221 [2023-12-16 04:25:46,807 INFO L226 Difference]: Without dead ends: 1436 [2023-12-16 04:25:46,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 04:25:46,809 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 105 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 710 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 04:25:46,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 710 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 04:25:46,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1436 states. [2023-12-16 04:25:46,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1436 to 1297. [2023-12-16 04:25:46,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1297 states, 1130 states have (on average 1.2424778761061948) internal successors, (1404), 1149 states have internal predecessors, (1404), 140 states have call successors, (140), 26 states have call predecessors, (140), 26 states have return successors, (140), 121 states have call predecessors, (140), 140 states have call successors, (140) [2023-12-16 04:25:46,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1297 states to 1297 states and 1684 transitions. [2023-12-16 04:25:46,884 INFO L78 Accepts]: Start accepts. Automaton has 1297 states and 1684 transitions. Word has length 139 [2023-12-16 04:25:46,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:25:46,884 INFO L495 AbstractCegarLoop]: Abstraction has 1297 states and 1684 transitions. [2023-12-16 04:25:46,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-16 04:25:46,884 INFO L276 IsEmpty]: Start isEmpty. Operand 1297 states and 1684 transitions. [2023-12-16 04:25:46,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-16 04:25:46,885 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:25:46,885 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:25:46,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-16 04:25:46,885 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:25:46,885 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:25:46,885 INFO L85 PathProgramCache]: Analyzing trace with hash -343509217, now seen corresponding path program 1 times [2023-12-16 04:25:46,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:25:46,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75412837] [2023-12-16 04:25:46,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:25:46,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:25:46,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:47,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:25:47,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:47,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:25:47,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:47,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:25:47,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:47,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:25:47,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:47,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:25:47,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:47,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:25:47,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:47,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:25:47,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:47,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:25:47,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:47,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:25:47,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:47,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:25:47,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:47,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:25:47,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:47,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:25:47,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:47,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:25:47,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:47,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:25:47,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:47,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:25:47,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:47,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:25:47,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:47,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:25:47,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:47,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:25:47,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:47,248 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-16 04:25:47,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:25:47,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75412837] [2023-12-16 04:25:47,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75412837] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:25:47,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:25:47,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 04:25:47,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076703020] [2023-12-16 04:25:47,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:25:47,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 04:25:47,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:25:47,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 04:25:47,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:25:47,250 INFO L87 Difference]: Start difference. First operand 1297 states and 1684 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-16 04:25:47,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:25:47,412 INFO L93 Difference]: Finished difference Result 2519 states and 3259 transitions. [2023-12-16 04:25:47,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 04:25:47,412 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 140 [2023-12-16 04:25:47,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:25:47,415 INFO L225 Difference]: With dead ends: 2519 [2023-12-16 04:25:47,415 INFO L226 Difference]: Without dead ends: 1227 [2023-12-16 04:25:47,417 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 04:25:47,418 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 24 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 04:25:47,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 405 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 04:25:47,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1227 states. [2023-12-16 04:25:47,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1227 to 1225. [2023-12-16 04:25:47,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1225 states, 1058 states have (on average 1.220226843100189) internal successors, (1291), 1077 states have internal predecessors, (1291), 140 states have call successors, (140), 26 states have call predecessors, (140), 26 states have return successors, (140), 121 states have call predecessors, (140), 140 states have call successors, (140) [2023-12-16 04:25:47,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1225 states to 1225 states and 1571 transitions. [2023-12-16 04:25:47,488 INFO L78 Accepts]: Start accepts. Automaton has 1225 states and 1571 transitions. Word has length 140 [2023-12-16 04:25:47,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:25:47,489 INFO L495 AbstractCegarLoop]: Abstraction has 1225 states and 1571 transitions. [2023-12-16 04:25:47,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-16 04:25:47,489 INFO L276 IsEmpty]: Start isEmpty. Operand 1225 states and 1571 transitions. [2023-12-16 04:25:47,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-16 04:25:47,490 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:25:47,490 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:25:47,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-16 04:25:47,490 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:25:47,490 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:25:47,490 INFO L85 PathProgramCache]: Analyzing trace with hash -1175221717, now seen corresponding path program 1 times [2023-12-16 04:25:47,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:25:47,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688832355] [2023-12-16 04:25:47,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:25:47,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:25:47,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:47,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:25:47,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:47,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:25:47,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:47,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:25:47,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:47,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:25:47,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:47,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:25:47,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:47,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:25:47,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:47,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:25:47,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:47,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:25:47,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:47,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:25:47,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:47,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:25:47,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:47,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:25:47,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:47,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:25:47,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:47,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:25:47,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:47,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:25:47,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:47,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:25:47,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:47,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:25:47,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:47,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:25:47,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:47,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:25:47,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:47,905 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-16 04:25:47,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:25:47,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688832355] [2023-12-16 04:25:47,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688832355] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:25:47,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:25:47,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-16 04:25:47,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371055580] [2023-12-16 04:25:47,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:25:47,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 04:25:47,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:25:47,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 04:25:47,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-16 04:25:47,907 INFO L87 Difference]: Start difference. First operand 1225 states and 1571 transitions. Second operand has 10 states, 9 states have (on average 5.888888888888889) internal successors, (53), 10 states have internal predecessors, (53), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2023-12-16 04:25:48,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:25:48,638 INFO L93 Difference]: Finished difference Result 2501 states and 3195 transitions. [2023-12-16 04:25:48,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-16 04:25:48,652 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.888888888888889) internal successors, (53), 10 states have internal predecessors, (53), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 140 [2023-12-16 04:25:48,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:25:48,657 INFO L225 Difference]: With dead ends: 2501 [2023-12-16 04:25:48,658 INFO L226 Difference]: Without dead ends: 1770 [2023-12-16 04:25:48,659 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=193, Invalid=563, Unknown=0, NotChecked=0, Total=756 [2023-12-16 04:25:48,660 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 328 mSDsluCounter, 988 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 1163 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 04:25:48,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [328 Valid, 1163 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 04:25:48,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1770 states. [2023-12-16 04:25:48,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1770 to 1351. [2023-12-16 04:25:48,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1351 states, 1184 states have (on average 1.2322635135135136) internal successors, (1459), 1203 states have internal predecessors, (1459), 140 states have call successors, (140), 26 states have call predecessors, (140), 26 states have return successors, (140), 121 states have call predecessors, (140), 140 states have call successors, (140) [2023-12-16 04:25:48,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1351 states to 1351 states and 1739 transitions. [2023-12-16 04:25:48,822 INFO L78 Accepts]: Start accepts. Automaton has 1351 states and 1739 transitions. Word has length 140 [2023-12-16 04:25:48,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:25:48,822 INFO L495 AbstractCegarLoop]: Abstraction has 1351 states and 1739 transitions. [2023-12-16 04:25:48,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.888888888888889) internal successors, (53), 10 states have internal predecessors, (53), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2023-12-16 04:25:48,822 INFO L276 IsEmpty]: Start isEmpty. Operand 1351 states and 1739 transitions. [2023-12-16 04:25:48,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-16 04:25:48,823 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:25:48,823 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:25:48,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-16 04:25:48,823 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:25:48,824 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:25:48,824 INFO L85 PathProgramCache]: Analyzing trace with hash -956366999, now seen corresponding path program 1 times [2023-12-16 04:25:48,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:25:48,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945123415] [2023-12-16 04:25:48,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:25:48,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:25:48,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:48,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:25:48,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:48,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:25:48,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:48,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:25:48,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:48,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:25:48,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:48,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:25:48,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:48,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:25:48,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:48,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:25:48,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:48,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:25:48,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:48,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:25:48,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:48,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:25:48,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:48,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:25:48,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:48,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:25:48,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:48,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:25:48,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:48,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:25:48,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:48,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:25:48,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:48,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:25:48,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:48,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:25:48,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:48,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:25:48,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:48,958 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-16 04:25:48,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:25:48,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945123415] [2023-12-16 04:25:48,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945123415] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:25:48,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:25:48,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 04:25:48,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055986977] [2023-12-16 04:25:48,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:25:48,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 04:25:48,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:25:48,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 04:25:48,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:25:48,960 INFO L87 Difference]: Start difference. First operand 1351 states and 1739 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-16 04:25:49,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:25:49,098 INFO L93 Difference]: Finished difference Result 2919 states and 3730 transitions. [2023-12-16 04:25:49,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 04:25:49,099 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 140 [2023-12-16 04:25:49,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:25:49,103 INFO L225 Difference]: With dead ends: 2919 [2023-12-16 04:25:49,103 INFO L226 Difference]: Without dead ends: 1573 [2023-12-16 04:25:49,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 04:25:49,106 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 95 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 660 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:25:49,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 660 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:25:49,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1573 states. [2023-12-16 04:25:49,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1573 to 1399. [2023-12-16 04:25:49,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1399 states, 1209 states have (on average 1.2191894127377998) internal successors, (1474), 1230 states have internal predecessors, (1474), 158 states have call successors, (158), 31 states have call predecessors, (158), 31 states have return successors, (158), 137 states have call predecessors, (158), 158 states have call successors, (158) [2023-12-16 04:25:49,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1399 states to 1399 states and 1790 transitions. [2023-12-16 04:25:49,191 INFO L78 Accepts]: Start accepts. Automaton has 1399 states and 1790 transitions. Word has length 140 [2023-12-16 04:25:49,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:25:49,192 INFO L495 AbstractCegarLoop]: Abstraction has 1399 states and 1790 transitions. [2023-12-16 04:25:49,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-16 04:25:49,192 INFO L276 IsEmpty]: Start isEmpty. Operand 1399 states and 1790 transitions. [2023-12-16 04:25:49,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-16 04:25:49,193 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:25:49,193 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:25:49,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-16 04:25:49,193 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:25:49,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:25:49,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1844549273, now seen corresponding path program 1 times [2023-12-16 04:25:49,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:25:49,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901566994] [2023-12-16 04:25:49,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:25:49,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:25:49,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:49,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:25:49,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:49,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:25:49,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:49,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:25:49,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:49,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:25:49,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:49,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:25:49,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:49,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:25:49,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:49,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:25:49,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:49,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:25:49,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:49,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:25:49,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:49,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:25:49,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:49,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:25:49,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:49,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:25:49,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:49,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:25:49,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:49,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:25:49,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:49,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:25:49,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:49,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:25:49,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:49,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:25:49,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:49,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:25:49,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:49,627 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-16 04:25:49,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:25:49,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901566994] [2023-12-16 04:25:49,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901566994] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:25:49,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:25:49,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-16 04:25:49,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265385212] [2023-12-16 04:25:49,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:25:49,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 04:25:49,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:25:49,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 04:25:49,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-12-16 04:25:49,629 INFO L87 Difference]: Start difference. First operand 1399 states and 1790 transitions. Second operand has 10 states, 8 states have (on average 6.625) internal successors, (53), 10 states have internal predecessors, (53), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 6 states have call successors, (18) [2023-12-16 04:25:50,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:25:50,058 INFO L93 Difference]: Finished difference Result 2940 states and 3734 transitions. [2023-12-16 04:25:50,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 04:25:50,059 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 6.625) internal successors, (53), 10 states have internal predecessors, (53), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 6 states have call successors, (18) Word has length 140 [2023-12-16 04:25:50,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:25:50,063 INFO L225 Difference]: With dead ends: 2940 [2023-12-16 04:25:50,063 INFO L226 Difference]: Without dead ends: 1546 [2023-12-16 04:25:50,065 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2023-12-16 04:25:50,066 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 266 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 04:25:50,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 457 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 04:25:50,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1546 states. [2023-12-16 04:25:50,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1546 to 1324. [2023-12-16 04:25:50,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1324 states, 1145 states have (on average 1.211353711790393) internal successors, (1387), 1163 states have internal predecessors, (1387), 146 states have call successors, (146), 32 states have call predecessors, (146), 32 states have return successors, (146), 128 states have call predecessors, (146), 146 states have call successors, (146) [2023-12-16 04:25:50,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1324 states to 1324 states and 1679 transitions. [2023-12-16 04:25:50,189 INFO L78 Accepts]: Start accepts. Automaton has 1324 states and 1679 transitions. Word has length 140 [2023-12-16 04:25:50,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:25:50,190 INFO L495 AbstractCegarLoop]: Abstraction has 1324 states and 1679 transitions. [2023-12-16 04:25:50,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 6.625) internal successors, (53), 10 states have internal predecessors, (53), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 6 states have call successors, (18) [2023-12-16 04:25:50,190 INFO L276 IsEmpty]: Start isEmpty. Operand 1324 states and 1679 transitions. [2023-12-16 04:25:50,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-16 04:25:50,191 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:25:50,191 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:25:50,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-16 04:25:50,191 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:25:50,191 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:25:50,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1790187183, now seen corresponding path program 1 times [2023-12-16 04:25:50,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:25:50,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844171194] [2023-12-16 04:25:50,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:25:50,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:25:50,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:51,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:25:51,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:51,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:25:51,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:51,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:25:51,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:51,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:25:51,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:51,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:25:51,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:51,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:25:51,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:51,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:25:51,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:51,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:25:51,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:51,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:25:51,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:51,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:25:51,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:51,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:25:51,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:51,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:25:51,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:51,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:25:51,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:51,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:25:51,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:51,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:25:51,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:51,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:25:51,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:51,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:25:51,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:51,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:25:51,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:51,605 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-16 04:25:51,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:25:51,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844171194] [2023-12-16 04:25:51,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844171194] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:25:51,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:25:51,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2023-12-16 04:25:51,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382513763] [2023-12-16 04:25:51,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:25:51,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-12-16 04:25:51,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:25:51,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-12-16 04:25:51,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2023-12-16 04:25:51,607 INFO L87 Difference]: Start difference. First operand 1324 states and 1679 transitions. Second operand has 25 states, 24 states have (on average 2.2916666666666665) internal successors, (55), 25 states have internal predecessors, (55), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2023-12-16 04:25:54,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:25:54,615 INFO L93 Difference]: Finished difference Result 1456 states and 1827 transitions. [2023-12-16 04:25:54,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2023-12-16 04:25:54,615 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 2.2916666666666665) internal successors, (55), 25 states have internal predecessors, (55), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 142 [2023-12-16 04:25:54,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:25:54,620 INFO L225 Difference]: With dead ends: 1456 [2023-12-16 04:25:54,620 INFO L226 Difference]: Without dead ends: 1454 [2023-12-16 04:25:54,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1153 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=806, Invalid=4024, Unknown=0, NotChecked=0, Total=4830 [2023-12-16 04:25:54,623 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 877 mSDsluCounter, 1488 mSDsCounter, 0 mSdLazyCounter, 1244 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 877 SdHoareTripleChecker+Valid, 1594 SdHoareTripleChecker+Invalid, 1325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 1244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:25:54,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [877 Valid, 1594 Invalid, 1325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 1244 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-16 04:25:54,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1454 states. [2023-12-16 04:25:54,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1454 to 1384. [2023-12-16 04:25:54,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1384 states, 1205 states have (on average 1.2024896265560165) internal successors, (1449), 1223 states have internal predecessors, (1449), 146 states have call successors, (146), 32 states have call predecessors, (146), 32 states have return successors, (146), 128 states have call predecessors, (146), 146 states have call successors, (146) [2023-12-16 04:25:54,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1384 states to 1384 states and 1741 transitions. [2023-12-16 04:25:54,699 INFO L78 Accepts]: Start accepts. Automaton has 1384 states and 1741 transitions. Word has length 142 [2023-12-16 04:25:54,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:25:54,699 INFO L495 AbstractCegarLoop]: Abstraction has 1384 states and 1741 transitions. [2023-12-16 04:25:54,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 2.2916666666666665) internal successors, (55), 25 states have internal predecessors, (55), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2023-12-16 04:25:54,700 INFO L276 IsEmpty]: Start isEmpty. Operand 1384 states and 1741 transitions. [2023-12-16 04:25:54,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-16 04:25:54,701 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:25:54,701 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:25:54,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-16 04:25:54,701 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:25:54,701 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:25:54,701 INFO L85 PathProgramCache]: Analyzing trace with hash 665464840, now seen corresponding path program 1 times [2023-12-16 04:25:54,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:25:54,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936896853] [2023-12-16 04:25:54,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:25:54,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:25:54,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:55,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:25:55,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:55,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:25:55,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:55,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:25:55,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:55,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:25:55,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:55,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:25:55,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:55,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:25:55,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:55,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:25:55,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:55,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:25:55,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:55,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:25:55,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:55,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:25:55,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:55,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:25:55,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:55,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:25:55,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:55,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:25:55,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:55,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:25:55,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:55,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:25:55,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:55,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:25:55,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:55,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:25:55,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:55,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:25:55,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:55,061 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-16 04:25:55,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:25:55,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936896853] [2023-12-16 04:25:55,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936896853] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:25:55,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:25:55,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 04:25:55,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076619192] [2023-12-16 04:25:55,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:25:55,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 04:25:55,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:25:55,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 04:25:55,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-12-16 04:25:55,063 INFO L87 Difference]: Start difference. First operand 1384 states and 1741 transitions. Second operand has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-16 04:25:55,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:25:55,441 INFO L93 Difference]: Finished difference Result 3637 states and 4567 transitions. [2023-12-16 04:25:55,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 04:25:55,441 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 142 [2023-12-16 04:25:55,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:25:55,449 INFO L225 Difference]: With dead ends: 3637 [2023-12-16 04:25:55,449 INFO L226 Difference]: Without dead ends: 2274 [2023-12-16 04:25:55,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2023-12-16 04:25:55,454 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 172 mSDsluCounter, 681 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 815 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 04:25:55,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 815 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 04:25:55,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2274 states. [2023-12-16 04:25:55,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2274 to 2044. [2023-12-16 04:25:55,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2044 states, 1792 states have (on average 1.2020089285714286) internal successors, (2154), 1814 states have internal predecessors, (2154), 210 states have call successors, (210), 41 states have call predecessors, (210), 41 states have return successors, (210), 188 states have call predecessors, (210), 210 states have call successors, (210) [2023-12-16 04:25:55,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2044 states to 2044 states and 2574 transitions. [2023-12-16 04:25:55,586 INFO L78 Accepts]: Start accepts. Automaton has 2044 states and 2574 transitions. Word has length 142 [2023-12-16 04:25:55,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:25:55,587 INFO L495 AbstractCegarLoop]: Abstraction has 2044 states and 2574 transitions. [2023-12-16 04:25:55,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-16 04:25:55,588 INFO L276 IsEmpty]: Start isEmpty. Operand 2044 states and 2574 transitions. [2023-12-16 04:25:55,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-16 04:25:55,589 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:25:55,589 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:25:55,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-16 04:25:55,590 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:25:55,590 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:25:55,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1571332465, now seen corresponding path program 1 times [2023-12-16 04:25:55,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:25:55,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60113473] [2023-12-16 04:25:55,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:25:55,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:25:55,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:55,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:25:55,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:55,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:25:55,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:55,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:25:55,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:55,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:25:55,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:55,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:25:55,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:55,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:25:55,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:55,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:25:55,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:55,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:25:55,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:55,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:25:55,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:55,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:25:55,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:55,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:25:55,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:55,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:25:55,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:55,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:25:55,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:55,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:25:55,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:55,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:25:55,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:55,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:25:55,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:55,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:25:55,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:55,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:25:55,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:55,766 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-16 04:25:55,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:25:55,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60113473] [2023-12-16 04:25:55,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60113473] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:25:55,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:25:55,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 04:25:55,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616371184] [2023-12-16 04:25:55,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:25:55,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 04:25:55,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:25:55,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 04:25:55,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:25:55,769 INFO L87 Difference]: Start difference. First operand 2044 states and 2574 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-16 04:25:56,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:25:56,014 INFO L93 Difference]: Finished difference Result 5019 states and 6289 transitions. [2023-12-16 04:25:56,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 04:25:56,015 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 142 [2023-12-16 04:25:56,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:25:56,030 INFO L225 Difference]: With dead ends: 5019 [2023-12-16 04:25:56,030 INFO L226 Difference]: Without dead ends: 2988 [2023-12-16 04:25:56,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 04:25:56,034 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 66 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 04:25:56,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 559 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 04:25:56,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2988 states. [2023-12-16 04:25:56,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2988 to 2480. [2023-12-16 04:25:56,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2480 states, 2207 states have (on average 1.1957408246488446) internal successors, (2639), 2231 states have internal predecessors, (2639), 226 states have call successors, (226), 46 states have call predecessors, (226), 46 states have return successors, (226), 202 states have call predecessors, (226), 226 states have call successors, (226) [2023-12-16 04:25:56,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2480 states to 2480 states and 3091 transitions. [2023-12-16 04:25:56,171 INFO L78 Accepts]: Start accepts. Automaton has 2480 states and 3091 transitions. Word has length 142 [2023-12-16 04:25:56,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:25:56,171 INFO L495 AbstractCegarLoop]: Abstraction has 2480 states and 3091 transitions. [2023-12-16 04:25:56,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-16 04:25:56,172 INFO L276 IsEmpty]: Start isEmpty. Operand 2480 states and 3091 transitions. [2023-12-16 04:25:56,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-16 04:25:56,173 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:25:56,173 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:25:56,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-16 04:25:56,173 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:25:56,173 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:25:56,173 INFO L85 PathProgramCache]: Analyzing trace with hash -1141824685, now seen corresponding path program 1 times [2023-12-16 04:25:56,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:25:56,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278441221] [2023-12-16 04:25:56,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:25:56,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:25:56,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:56,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:25:56,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:56,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:25:56,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:56,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:25:56,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:56,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:25:56,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:56,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:25:56,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:56,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:25:56,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:56,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:25:56,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:56,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:25:56,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:56,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:25:56,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:56,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:25:56,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:56,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:25:56,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:56,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:25:56,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:56,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:25:56,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:56,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:25:56,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:56,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:25:56,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:56,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:25:56,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:56,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:25:56,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:56,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:25:56,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:56,919 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-16 04:25:56,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:25:56,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278441221] [2023-12-16 04:25:56,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278441221] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:25:56,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:25:56,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-16 04:25:56,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690174067] [2023-12-16 04:25:56,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:25:56,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-16 04:25:56,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:25:56,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-16 04:25:56,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2023-12-16 04:25:56,920 INFO L87 Difference]: Start difference. First operand 2480 states and 3091 transitions. Second operand has 14 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 14 states have internal predecessors, (56), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2023-12-16 04:25:58,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:25:58,095 INFO L93 Difference]: Finished difference Result 5673 states and 7074 transitions. [2023-12-16 04:25:58,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-16 04:25:58,109 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 14 states have internal predecessors, (56), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 143 [2023-12-16 04:25:58,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:25:58,120 INFO L225 Difference]: With dead ends: 5673 [2023-12-16 04:25:58,120 INFO L226 Difference]: Without dead ends: 3206 [2023-12-16 04:25:58,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=184, Invalid=746, Unknown=0, NotChecked=0, Total=930 [2023-12-16 04:25:58,136 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 642 mSDsluCounter, 902 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 642 SdHoareTripleChecker+Valid, 1038 SdHoareTripleChecker+Invalid, 770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 04:25:58,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [642 Valid, 1038 Invalid, 770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 04:25:58,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3206 states. [2023-12-16 04:25:58,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3206 to 3048. [2023-12-16 04:25:58,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3048 states, 2691 states have (on average 1.1936083240431066) internal successors, (3212), 2720 states have internal predecessors, (3212), 296 states have call successors, (296), 60 states have call predecessors, (296), 60 states have return successors, (296), 267 states have call predecessors, (296), 296 states have call successors, (296) [2023-12-16 04:25:58,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3048 states to 3048 states and 3804 transitions. [2023-12-16 04:25:58,292 INFO L78 Accepts]: Start accepts. Automaton has 3048 states and 3804 transitions. Word has length 143 [2023-12-16 04:25:58,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:25:58,292 INFO L495 AbstractCegarLoop]: Abstraction has 3048 states and 3804 transitions. [2023-12-16 04:25:58,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 14 states have internal predecessors, (56), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2023-12-16 04:25:58,292 INFO L276 IsEmpty]: Start isEmpty. Operand 3048 states and 3804 transitions. [2023-12-16 04:25:58,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-16 04:25:58,293 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:25:58,294 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:25:58,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-16 04:25:58,294 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:25:58,294 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:25:58,294 INFO L85 PathProgramCache]: Analyzing trace with hash 1313827338, now seen corresponding path program 1 times [2023-12-16 04:25:58,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:25:58,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126857690] [2023-12-16 04:25:58,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:25:58,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:25:58,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:59,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:25:59,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:59,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:25:59,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:59,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:25:59,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:59,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:25:59,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:59,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:25:59,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:59,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:25:59,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:59,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:25:59,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:59,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:25:59,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:59,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:25:59,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:59,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:25:59,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:59,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:25:59,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:59,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:25:59,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:59,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:25:59,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:59,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:25:59,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:59,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:25:59,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:59,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:25:59,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:59,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:25:59,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:59,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:25:59,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:59,185 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 42 proven. 9 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2023-12-16 04:25:59,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:25:59,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126857690] [2023-12-16 04:25:59,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126857690] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 04:25:59,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2069605740] [2023-12-16 04:25:59,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:25:59,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:25:59,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:25:59,188 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 04:25:59,189 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-16 04:25:59,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:59,395 INFO L262 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 44 conjunts are in the unsatisfiable core [2023-12-16 04:25:59,407 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:25:59,481 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 32 treesize of output 27 [2023-12-16 04:25:59,684 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 35 treesize of output 27 [2023-12-16 04:25:59,725 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 47 treesize of output 39 [2023-12-16 04:25:59,743 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 25 [2023-12-16 04:25:59,864 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-16 04:25:59,864 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:25:59,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2069605740] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:25:59,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 04:25:59,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [19] total 30 [2023-12-16 04:25:59,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866905989] [2023-12-16 04:25:59,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:25:59,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-16 04:25:59,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:25:59,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-16 04:25:59,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2023-12-16 04:25:59,866 INFO L87 Difference]: Start difference. First operand 3048 states and 3804 transitions. Second operand has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 13 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-16 04:26:00,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:26:00,637 INFO L93 Difference]: Finished difference Result 4275 states and 5235 transitions. [2023-12-16 04:26:00,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-16 04:26:00,637 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 13 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 143 [2023-12-16 04:26:00,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:26:00,646 INFO L225 Difference]: With dead ends: 4275 [2023-12-16 04:26:00,646 INFO L226 Difference]: Without dead ends: 4273 [2023-12-16 04:26:00,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=207, Invalid=1599, Unknown=0, NotChecked=0, Total=1806 [2023-12-16 04:26:00,649 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 140 mSDsluCounter, 1162 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 1303 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 04:26:00,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 1303 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 04:26:00,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4273 states. [2023-12-16 04:26:00,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4273 to 3571. [2023-12-16 04:26:00,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3571 states, 3214 states have (on average 1.1975731176104543) internal successors, (3849), 3243 states have internal predecessors, (3849), 296 states have call successors, (296), 60 states have call predecessors, (296), 60 states have return successors, (296), 267 states have call predecessors, (296), 296 states have call successors, (296) [2023-12-16 04:26:00,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3571 states to 3571 states and 4441 transitions. [2023-12-16 04:26:00,850 INFO L78 Accepts]: Start accepts. Automaton has 3571 states and 4441 transitions. Word has length 143 [2023-12-16 04:26:00,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:26:00,851 INFO L495 AbstractCegarLoop]: Abstraction has 3571 states and 4441 transitions. [2023-12-16 04:26:00,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 13 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-16 04:26:00,851 INFO L276 IsEmpty]: Start isEmpty. Operand 3571 states and 4441 transitions. [2023-12-16 04:26:00,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-16 04:26:00,852 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:26:00,852 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:26:00,859 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-16 04:26:01,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-12-16 04:26:01,059 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:26:01,060 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:26:01,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1206132596, now seen corresponding path program 1 times [2023-12-16 04:26:01,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:26:01,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569607133] [2023-12-16 04:26:01,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:26:01,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:26:01,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:01,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:26:01,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:01,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:26:01,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:01,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:26:01,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:01,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:26:01,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:01,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:26:01,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:01,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:26:01,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:01,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:26:01,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:01,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:26:01,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:01,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:26:01,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:01,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:26:01,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:01,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:26:01,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:01,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:26:01,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:01,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:26:01,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:01,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:26:01,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:01,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:26:01,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:01,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:26:01,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:01,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:26:01,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:01,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:26:01,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:01,303 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-16 04:26:01,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:26:01,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569607133] [2023-12-16 04:26:01,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569607133] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:26:01,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:26:01,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 04:26:01,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033881179] [2023-12-16 04:26:01,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:26:01,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 04:26:01,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:26:01,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 04:26:01,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 04:26:01,305 INFO L87 Difference]: Start difference. First operand 3571 states and 4441 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-16 04:26:01,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:26:01,641 INFO L93 Difference]: Finished difference Result 7445 states and 9208 transitions. [2023-12-16 04:26:01,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 04:26:01,641 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 143 [2023-12-16 04:26:01,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:26:01,647 INFO L225 Difference]: With dead ends: 7445 [2023-12-16 04:26:01,647 INFO L226 Difference]: Without dead ends: 3907 [2023-12-16 04:26:01,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-16 04:26:01,652 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 39 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 650 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 04:26:01,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 650 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 04:26:01,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3907 states. [2023-12-16 04:26:01,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3907 to 3571. [2023-12-16 04:26:01,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3571 states, 3214 states have (on average 1.1916614810205353) internal successors, (3830), 3243 states have internal predecessors, (3830), 296 states have call successors, (296), 60 states have call predecessors, (296), 60 states have return successors, (296), 267 states have call predecessors, (296), 296 states have call successors, (296) [2023-12-16 04:26:01,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3571 states to 3571 states and 4422 transitions. [2023-12-16 04:26:01,833 INFO L78 Accepts]: Start accepts. Automaton has 3571 states and 4422 transitions. Word has length 143 [2023-12-16 04:26:01,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:26:01,833 INFO L495 AbstractCegarLoop]: Abstraction has 3571 states and 4422 transitions. [2023-12-16 04:26:01,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-16 04:26:01,833 INFO L276 IsEmpty]: Start isEmpty. Operand 3571 states and 4422 transitions. [2023-12-16 04:26:01,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-16 04:26:01,835 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:26:01,835 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:26:01,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-16 04:26:01,835 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:26:01,835 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:26:01,835 INFO L85 PathProgramCache]: Analyzing trace with hash -491610996, now seen corresponding path program 1 times [2023-12-16 04:26:01,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:26:01,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60287620] [2023-12-16 04:26:01,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:26:01,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:26:01,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:02,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:26:02,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:02,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:26:02,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:02,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:26:02,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:02,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:26:02,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:02,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:26:02,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:02,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:26:02,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:02,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:26:02,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:02,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:26:02,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:02,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:26:02,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:02,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:26:02,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:02,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:26:02,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:02,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:26:02,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:02,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:26:02,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:02,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:26:02,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:02,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:26:02,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:02,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:26:02,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:02,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:26:02,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:02,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:26:02,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:02,181 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-16 04:26:02,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:26:02,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60287620] [2023-12-16 04:26:02,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60287620] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:26:02,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:26:02,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 04:26:02,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92933597] [2023-12-16 04:26:02,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:26:02,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 04:26:02,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:26:02,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 04:26:02,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-16 04:26:02,182 INFO L87 Difference]: Start difference. First operand 3571 states and 4422 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-16 04:26:02,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:26:02,533 INFO L93 Difference]: Finished difference Result 7530 states and 9292 transitions. [2023-12-16 04:26:02,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 04:26:02,534 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 143 [2023-12-16 04:26:02,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:26:02,540 INFO L225 Difference]: With dead ends: 7530 [2023-12-16 04:26:02,540 INFO L226 Difference]: Without dead ends: 3992 [2023-12-16 04:26:02,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-12-16 04:26:02,546 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 44 mSDsluCounter, 608 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 753 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 04:26:02,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 753 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 04:26:02,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3992 states. [2023-12-16 04:26:02,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3992 to 3739. [2023-12-16 04:26:02,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3739 states, 3382 states have (on average 1.1874630396215258) internal successors, (4016), 3411 states have internal predecessors, (4016), 296 states have call successors, (296), 60 states have call predecessors, (296), 60 states have return successors, (296), 267 states have call predecessors, (296), 296 states have call successors, (296) [2023-12-16 04:26:02,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3739 states to 3739 states and 4608 transitions. [2023-12-16 04:26:02,716 INFO L78 Accepts]: Start accepts. Automaton has 3739 states and 4608 transitions. Word has length 143 [2023-12-16 04:26:02,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:26:02,716 INFO L495 AbstractCegarLoop]: Abstraction has 3739 states and 4608 transitions. [2023-12-16 04:26:02,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-16 04:26:02,716 INFO L276 IsEmpty]: Start isEmpty. Operand 3739 states and 4608 transitions. [2023-12-16 04:26:02,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-16 04:26:02,718 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:26:02,718 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:26:02,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-16 04:26:02,718 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:26:02,718 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:26:02,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1283396366, now seen corresponding path program 1 times [2023-12-16 04:26:02,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:26:02,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646907086] [2023-12-16 04:26:02,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:26:02,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:26:02,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:02,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:26:02,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:02,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:26:02,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:02,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:26:02,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:02,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:26:02,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:02,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:26:02,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:02,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:26:02,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:02,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:26:02,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:02,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:26:02,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:02,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:26:02,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:02,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:26:02,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:02,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:26:02,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:02,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:26:02,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:02,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:26:02,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:02,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:26:02,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:02,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:26:02,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:02,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:26:02,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:02,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:26:02,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:02,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:26:02,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:02,976 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-16 04:26:02,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:26:02,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646907086] [2023-12-16 04:26:02,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646907086] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:26:02,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:26:02,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-16 04:26:02,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409163512] [2023-12-16 04:26:02,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:26:02,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 04:26:02,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:26:02,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 04:26:02,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-16 04:26:02,977 INFO L87 Difference]: Start difference. First operand 3739 states and 4608 transitions. Second operand has 10 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-16 04:26:03,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:26:03,393 INFO L93 Difference]: Finished difference Result 5399 states and 6727 transitions. [2023-12-16 04:26:03,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 04:26:03,394 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 143 [2023-12-16 04:26:03,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:26:03,417 INFO L225 Difference]: With dead ends: 5399 [2023-12-16 04:26:03,417 INFO L226 Difference]: Without dead ends: 5397 [2023-12-16 04:26:03,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2023-12-16 04:26:03,419 INFO L413 NwaCegarLoop]: 235 mSDtfsCounter, 140 mSDsluCounter, 1710 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 1945 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 04:26:03,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 1945 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 04:26:03,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5397 states. [2023-12-16 04:26:03,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5397 to 5234. [2023-12-16 04:26:03,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5234 states, 4602 states have (on average 1.1875271621034333) internal successors, (5465), 4649 states have internal predecessors, (5465), 526 states have call successors, (526), 105 states have call predecessors, (526), 105 states have return successors, (526), 479 states have call predecessors, (526), 526 states have call successors, (526) [2023-12-16 04:26:03,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5234 states to 5234 states and 6517 transitions. [2023-12-16 04:26:03,929 INFO L78 Accepts]: Start accepts. Automaton has 5234 states and 6517 transitions. Word has length 143 [2023-12-16 04:26:03,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:26:03,929 INFO L495 AbstractCegarLoop]: Abstraction has 5234 states and 6517 transitions. [2023-12-16 04:26:03,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-16 04:26:03,929 INFO L276 IsEmpty]: Start isEmpty. Operand 5234 states and 6517 transitions. [2023-12-16 04:26:03,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-16 04:26:03,931 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:26:03,931 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:26:03,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-12-16 04:26:03,931 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:26:03,931 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:26:03,931 INFO L85 PathProgramCache]: Analyzing trace with hash -577043397, now seen corresponding path program 1 times [2023-12-16 04:26:03,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:26:03,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181331133] [2023-12-16 04:26:03,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:26:03,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:26:04,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:04,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:26:04,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:04,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:26:04,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:04,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:26:04,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:04,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:26:04,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:04,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:26:04,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:04,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:26:04,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:04,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:26:04,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:04,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:26:04,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:04,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:26:04,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:04,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:26:04,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:04,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:26:04,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:04,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:26:04,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:04,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:26:04,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:04,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:26:04,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:04,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:26:04,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:04,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:26:04,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:04,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:26:04,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:04,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:26:04,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:04,682 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-16 04:26:04,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:26:04,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181331133] [2023-12-16 04:26:04,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181331133] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:26:04,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:26:04,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-16 04:26:04,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045259224] [2023-12-16 04:26:04,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:26:04,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-16 04:26:04,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:26:04,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-16 04:26:04,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2023-12-16 04:26:04,684 INFO L87 Difference]: Start difference. First operand 5234 states and 6517 transitions. Second operand has 13 states, 11 states have (on average 5.090909090909091) internal successors, (56), 13 states have internal predecessors, (56), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 6 states have call successors, (18) [2023-12-16 04:26:06,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:26:06,636 INFO L93 Difference]: Finished difference Result 11958 states and 14756 transitions. [2023-12-16 04:26:06,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-16 04:26:06,636 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 5.090909090909091) internal successors, (56), 13 states have internal predecessors, (56), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 6 states have call successors, (18) Word has length 143 [2023-12-16 04:26:06,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:26:06,649 INFO L225 Difference]: With dead ends: 11958 [2023-12-16 04:26:06,649 INFO L226 Difference]: Without dead ends: 6757 [2023-12-16 04:26:06,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=109, Invalid=397, Unknown=0, NotChecked=0, Total=506 [2023-12-16 04:26:06,657 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 385 mSDsluCounter, 871 mSDsCounter, 0 mSdLazyCounter, 806 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 1064 SdHoareTripleChecker+Invalid, 862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:26:06,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [385 Valid, 1064 Invalid, 862 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 806 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-16 04:26:06,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6757 states. [2023-12-16 04:26:07,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6757 to 5070. [2023-12-16 04:26:07,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5070 states, 4495 states have (on average 1.171523915461624) internal successors, (5266), 4532 states have internal predecessors, (5266), 466 states have call successors, (466), 108 states have call predecessors, (466), 108 states have return successors, (466), 429 states have call predecessors, (466), 466 states have call successors, (466) [2023-12-16 04:26:07,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5070 states to 5070 states and 6198 transitions. [2023-12-16 04:26:07,076 INFO L78 Accepts]: Start accepts. Automaton has 5070 states and 6198 transitions. Word has length 143 [2023-12-16 04:26:07,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:26:07,076 INFO L495 AbstractCegarLoop]: Abstraction has 5070 states and 6198 transitions. [2023-12-16 04:26:07,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 5.090909090909091) internal successors, (56), 13 states have internal predecessors, (56), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 6 states have call successors, (18) [2023-12-16 04:26:07,076 INFO L276 IsEmpty]: Start isEmpty. Operand 5070 states and 6198 transitions. [2023-12-16 04:26:07,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-16 04:26:07,078 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:26:07,078 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:26:07,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-12-16 04:26:07,078 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:26:07,078 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:26:07,078 INFO L85 PathProgramCache]: Analyzing trace with hash -1599171722, now seen corresponding path program 1 times [2023-12-16 04:26:07,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:26:07,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906012160] [2023-12-16 04:26:07,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:26:07,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:26:07,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:08,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:26:08,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:08,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:26:08,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:08,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:26:08,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:08,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:26:08,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:08,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:26:08,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:08,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:26:08,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:08,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:26:08,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:08,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:26:08,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:08,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:26:08,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:08,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:26:08,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:08,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:26:08,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:08,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:26:08,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:08,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:26:08,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:08,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:26:08,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:08,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:26:08,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:08,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:26:08,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:08,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:26:08,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:08,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:26:08,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:08,047 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-16 04:26:08,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:26:08,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906012160] [2023-12-16 04:26:08,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906012160] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:26:08,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:26:08,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-16 04:26:08,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288524779] [2023-12-16 04:26:08,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:26:08,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-16 04:26:08,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:26:08,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-16 04:26:08,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2023-12-16 04:26:08,048 INFO L87 Difference]: Start difference. First operand 5070 states and 6198 transitions. Second operand has 18 states, 17 states have (on average 3.411764705882353) internal successors, (58), 18 states have internal predecessors, (58), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2023-12-16 04:26:10,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:26:10,333 INFO L93 Difference]: Finished difference Result 5501 states and 6676 transitions. [2023-12-16 04:26:10,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-12-16 04:26:10,334 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.411764705882353) internal successors, (58), 18 states have internal predecessors, (58), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 145 [2023-12-16 04:26:10,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:26:10,343 INFO L225 Difference]: With dead ends: 5501 [2023-12-16 04:26:10,343 INFO L226 Difference]: Without dead ends: 5499 [2023-12-16 04:26:10,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 526 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=517, Invalid=2239, Unknown=0, NotChecked=0, Total=2756 [2023-12-16 04:26:10,345 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 561 mSDsluCounter, 1469 mSDsCounter, 0 mSdLazyCounter, 1224 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 561 SdHoareTripleChecker+Valid, 1627 SdHoareTripleChecker+Invalid, 1307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 1224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-16 04:26:10,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [561 Valid, 1627 Invalid, 1307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 1224 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-16 04:26:10,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5499 states. [2023-12-16 04:26:10,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5499 to 5070. [2023-12-16 04:26:10,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5070 states, 4495 states have (on average 1.1721913236929922) internal successors, (5269), 4532 states have internal predecessors, (5269), 466 states have call successors, (466), 108 states have call predecessors, (466), 108 states have return successors, (466), 429 states have call predecessors, (466), 466 states have call successors, (466) [2023-12-16 04:26:10,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5070 states to 5070 states and 6201 transitions. [2023-12-16 04:26:10,729 INFO L78 Accepts]: Start accepts. Automaton has 5070 states and 6201 transitions. Word has length 145 [2023-12-16 04:26:10,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:26:10,729 INFO L495 AbstractCegarLoop]: Abstraction has 5070 states and 6201 transitions. [2023-12-16 04:26:10,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.411764705882353) internal successors, (58), 18 states have internal predecessors, (58), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2023-12-16 04:26:10,729 INFO L276 IsEmpty]: Start isEmpty. Operand 5070 states and 6201 transitions. [2023-12-16 04:26:10,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-12-16 04:26:10,731 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:26:10,731 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:26:10,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-12-16 04:26:10,732 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:26:10,732 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:26:10,732 INFO L85 PathProgramCache]: Analyzing trace with hash -276410012, now seen corresponding path program 1 times [2023-12-16 04:26:10,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:26:10,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106661819] [2023-12-16 04:26:10,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:26:10,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms Received shutdown request... [2023-12-16 04:26:10,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2023-12-16 04:26:10,770 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 04:26:10,775 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 04:26:10,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-12-16 04:26:10,776 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 147 with TraceHistMax 18,while AutomatonFreeRefinementEngine was Timeout during feasibility check between IpTcStrategyModuleSmtInterpolCraig [106661819] and IpTcStrategyModuleZ3 [18789843]. [2023-12-16 04:26:10,779 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:26:10,781 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 04:26:10,783 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 04:26:10 BoogieIcfgContainer [2023-12-16 04:26:10,783 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 04:26:10,783 INFO L158 Benchmark]: Toolchain (without parser) took 54509.89ms. Allocated memory was 231.7MB in the beginning and 1.2GB in the end (delta: 937.4MB). Free memory was 182.2MB in the beginning and 478.4MB in the end (delta: -296.3MB). Peak memory consumption was 642.0MB. Max. memory is 8.0GB. [2023-12-16 04:26:10,785 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 173.0MB. Free memory was 124.0MB in the beginning and 123.9MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 04:26:10,785 INFO L158 Benchmark]: CACSL2BoogieTranslator took 359.60ms. Allocated memory is still 231.7MB. Free memory was 182.2MB in the beginning and 167.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2023-12-16 04:26:10,786 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.59ms. Allocated memory is still 231.7MB. Free memory was 167.5MB in the beginning and 163.7MB in the end (delta: 3.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 04:26:10,786 INFO L158 Benchmark]: Boogie Preprocessor took 92.70ms. Allocated memory is still 231.7MB. Free memory was 163.7MB in the beginning and 159.1MB in the end (delta: 4.7MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-16 04:26:10,786 INFO L158 Benchmark]: RCFGBuilder took 718.64ms. Allocated memory is still 231.7MB. Free memory was 159.1MB in the beginning and 181.6MB in the end (delta: -22.6MB). Peak memory consumption was 25.0MB. Max. memory is 8.0GB. [2023-12-16 04:26:10,787 INFO L158 Benchmark]: TraceAbstraction took 53268.09ms. Allocated memory was 231.7MB in the beginning and 1.2GB in the end (delta: 937.4MB). Free memory was 181.1MB in the beginning and 478.4MB in the end (delta: -297.3MB). Peak memory consumption was 640.1MB. Max. memory is 8.0GB. [2023-12-16 04:26:10,788 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 173.0MB. Free memory was 124.0MB in the beginning and 123.9MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 359.60ms. Allocated memory is still 231.7MB. Free memory was 182.2MB in the beginning and 167.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 64.59ms. Allocated memory is still 231.7MB. Free memory was 167.5MB in the beginning and 163.7MB in the end (delta: 3.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 92.70ms. Allocated memory is still 231.7MB. Free memory was 163.7MB in the beginning and 159.1MB in the end (delta: 4.7MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 718.64ms. Allocated memory is still 231.7MB. Free memory was 159.1MB in the beginning and 181.6MB in the end (delta: -22.6MB). Peak memory consumption was 25.0MB. Max. memory is 8.0GB. * TraceAbstraction took 53268.09ms. Allocated memory was 231.7MB in the beginning and 1.2GB in the end (delta: 937.4MB). Free memory was 181.1MB in the beginning and 478.4MB in the end (delta: -297.3MB). Peak memory consumption was 640.1MB. 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: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 147 with TraceHistMax 18,while AutomatonFreeRefinementEngine was Timeout during feasibility check between IpTcStrategyModuleSmtInterpolCraig [106661819] and IpTcStrategyModuleZ3 [18789843]. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 92 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 53.2s, OverallIterations: 32, TraceHistogramMax: 18, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 31.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 8194 SdHoareTripleChecker+Valid, 17.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8192 mSDsluCounter, 30498 SdHoareTripleChecker+Invalid, 16.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 25864 mSDsCounter, 714 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12948 IncrementalHoareTripleChecker+Invalid, 13663 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 714 mSolverCounterUnsat, 4634 mSDtfsCounter, 12948 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1945 GetRequests, 1379 SyntacticMatches, 3 SemanticMatches, 563 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3318 ImplicationChecksByTransitivity, 12.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5234occurred in iteration=29, InterpolantAutomatonStates: 438, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.6s AutomataMinimizationTime, 31 MinimizatonAttempts, 7809 StatesRemovedByMinimization, 30 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 15.8s InterpolantComputationTime, 4421 NumberOfCodeBlocks, 4421 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 4389 ConstructedInterpolants, 0 QuantifiedInterpolants, 29047 SizeOfPredicates, 30 NumberOfNonLiveVariables, 574 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 32 InterpolantComputations, 31 PerfectInterpolantSequences, 19575/19584 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