/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-66.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 15:39:49,832 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 15:39:49,888 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-19 15:39:49,893 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 15:39:49,893 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 15:39:49,918 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 15:39:49,918 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 15:39:49,918 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 15:39:49,919 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 15:39:49,922 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 15:39:49,922 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 15:39:49,922 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 15:39:49,923 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 15:39:49,923 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 15:39:49,923 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 15:39:49,923 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 15:39:49,923 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 15:39:49,923 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 15:39:49,924 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 15:39:49,924 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 15:39:49,924 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 15:39:49,924 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 15:39:49,924 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 15:39:49,924 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 15:39:49,925 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 15:39:49,925 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 15:39:49,925 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 15:39:49,925 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 15:39:49,925 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 15:39:49,925 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 15:39:49,925 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 15:39:49,926 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 15:39:49,926 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 15:39:49,926 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 15:39:49,926 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 15:39:49,926 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 15:39:49,926 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 15:39:49,926 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 15:39:49,926 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 15:39:49,926 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 15:39:49,927 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 15:39:49,927 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 15:39:49,927 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 15:39:49,928 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 15:39:50,110 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 15:39:50,128 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 15:39:50,129 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 15:39:50,130 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 15:39:50,131 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 15:39:50,131 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-66.i [2023-12-19 15:39:51,150 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 15:39:51,314 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 15:39:51,315 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-66.i [2023-12-19 15:39:51,329 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05260677c/db30785720e644f7a78a78b0b890d6f6/FLAG8a69cdf02 [2023-12-19 15:39:51,342 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05260677c/db30785720e644f7a78a78b0b890d6f6 [2023-12-19 15:39:51,345 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 15:39:51,347 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 15:39:51,349 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 15:39:51,349 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 15:39:51,352 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 15:39:51,353 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 03:39:51" (1/1) ... [2023-12-19 15:39:51,353 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32decaf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:39:51, skipping insertion in model container [2023-12-19 15:39:51,353 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 03:39:51" (1/1) ... [2023-12-19 15:39:51,379 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 15:39:51,466 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-66.i[916,929] [2023-12-19 15:39:51,507 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 15:39:51,517 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 15:39:51,525 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-66.i[916,929] [2023-12-19 15:39:51,555 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 15:39:51,566 INFO L206 MainTranslator]: Completed translation [2023-12-19 15:39:51,567 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:39:51 WrapperNode [2023-12-19 15:39:51,567 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 15:39:51,568 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 15:39:51,568 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 15:39:51,568 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 15:39:51,574 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:39:51" (1/1) ... [2023-12-19 15:39:51,593 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:39:51" (1/1) ... [2023-12-19 15:39:51,626 INFO L138 Inliner]: procedures = 26, calls = 160, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 460 [2023-12-19 15:39:51,626 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 15:39:51,627 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 15:39:51,627 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 15:39:51,627 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 15:39:51,636 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:39:51" (1/1) ... [2023-12-19 15:39:51,636 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:39:51" (1/1) ... [2023-12-19 15:39:51,640 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:39:51" (1/1) ... [2023-12-19 15:39:51,676 INFO L175 MemorySlicer]: Split 123 memory accesses to 13 slices as follows [2, 7, 10, 8, 14, 8, 16, 8, 8, 14, 8, 13, 7]. 13 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 16 writes are split as follows [0, 2, 1, 1, 2, 1, 1, 1, 1, 1, 3, 1, 1]. [2023-12-19 15:39:51,677 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:39:51" (1/1) ... [2023-12-19 15:39:51,677 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:39:51" (1/1) ... [2023-12-19 15:39:51,686 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:39:51" (1/1) ... [2023-12-19 15:39:51,691 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:39:51" (1/1) ... [2023-12-19 15:39:51,693 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:39:51" (1/1) ... [2023-12-19 15:39:51,695 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:39:51" (1/1) ... [2023-12-19 15:39:51,699 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 15:39:51,699 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 15:39:51,699 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 15:39:51,699 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 15:39:51,700 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:39:51" (1/1) ... [2023-12-19 15:39:51,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 15:39:51,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:39:51,727 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-19 15:39:51,737 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-19 15:39:51,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 15:39:51,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-19 15:39:51,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-19 15:39:51,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-12-19 15:39:51,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-12-19 15:39:51,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-12-19 15:39:51,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-12-19 15:39:51,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-12-19 15:39:51,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-12-19 15:39:51,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-12-19 15:39:51,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-12-19 15:39:51,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-12-19 15:39:51,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-12-19 15:39:51,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2023-12-19 15:39:51,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-19 15:39:51,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-19 15:39:51,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-12-19 15:39:51,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-12-19 15:39:51,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-12-19 15:39:51,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-12-19 15:39:51,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-12-19 15:39:51,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-12-19 15:39:51,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-12-19 15:39:51,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-12-19 15:39:51,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-12-19 15:39:51,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-12-19 15:39:51,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2023-12-19 15:39:51,758 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-19 15:39:51,758 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-19 15:39:51,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 15:39:51,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-19 15:39:51,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-19 15:39:51,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-19 15:39:51,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-12-19 15:39:51,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-12-19 15:39:51,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-12-19 15:39:51,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-12-19 15:39:51,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-12-19 15:39:51,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-12-19 15:39:51,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-12-19 15:39:51,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-12-19 15:39:51,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-12-19 15:39:51,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 15:39:51,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 15:39:51,903 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 15:39:51,905 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 15:39:52,256 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 15:39:52,303 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 15:39:52,303 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-19 15:39:52,303 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 03:39:52 BoogieIcfgContainer [2023-12-19 15:39:52,303 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 15:39:52,305 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 15:39:52,305 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 15:39:52,307 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 15:39:52,307 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 03:39:51" (1/3) ... [2023-12-19 15:39:52,308 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@693f2d8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 03:39:52, skipping insertion in model container [2023-12-19 15:39:52,308 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:39:51" (2/3) ... [2023-12-19 15:39:52,308 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@693f2d8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 03:39:52, skipping insertion in model container [2023-12-19 15:39:52,308 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 03:39:52" (3/3) ... [2023-12-19 15:39:52,309 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-66.i [2023-12-19 15:39:52,322 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 15:39:52,322 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-19 15:39:52,358 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 15:39:52,363 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;@2a8458cf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 15:39:52,363 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-19 15:39:52,367 INFO L276 IsEmpty]: Start isEmpty. Operand has 79 states, 62 states have (on average 1.4516129032258065) internal successors, (90), 63 states have internal predecessors, (90), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-19 15:39:52,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-19 15:39:52,381 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:39:52,382 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:39:52,382 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:39:52,388 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:39:52,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1546467173, now seen corresponding path program 1 times [2023-12-19 15:39:52,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:39:52,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980129153] [2023-12-19 15:39:52,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:39:52,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:39:52,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:39:52,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:39:52,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:39:52,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:39:52,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:39:52,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:39:52,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:39:52,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:39:52,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:39:52,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:39:52,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:39:52,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:39:52,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:39:52,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:39:52,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:39:52,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:39:52,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:39:52,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:39:52,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:39:52,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:39:52,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:39:52,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:39:52,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:39:52,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:39:52,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:39:52,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:39:52,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:39:52,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:39:52,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:39:52,718 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 15:39:52,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:39:52,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980129153] [2023-12-19 15:39:52,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980129153] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:39:52,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:39:52,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 15:39:52,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408394995] [2023-12-19 15:39:52,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:39:52,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-19 15:39:52,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:39:52,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-19 15:39:52,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 15:39:52,747 INFO L87 Difference]: Start difference. First operand has 79 states, 62 states have (on average 1.4516129032258065) internal successors, (90), 63 states have internal predecessors, (90), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) 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, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-19 15:39:52,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:39:52,777 INFO L93 Difference]: Finished difference Result 155 states and 248 transitions. [2023-12-19 15:39:52,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-19 15:39:52,779 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, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 104 [2023-12-19 15:39:52,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:39:52,784 INFO L225 Difference]: With dead ends: 155 [2023-12-19 15:39:52,784 INFO L226 Difference]: Without dead ends: 77 [2023-12-19 15:39:52,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 15:39:52,789 INFO L413 NwaCegarLoop]: 109 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, 109 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 [2023-12-19 15:39:52,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 109 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 15:39:52,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2023-12-19 15:39:52,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2023-12-19 15:39:52,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 61 states have (on average 1.3934426229508197) internal successors, (85), 61 states have internal predecessors, (85), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-19 15:39:52,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 113 transitions. [2023-12-19 15:39:52,818 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 113 transitions. Word has length 104 [2023-12-19 15:39:52,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:39:52,818 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 113 transitions. [2023-12-19 15:39:52,818 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, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-19 15:39:52,819 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 113 transitions. [2023-12-19 15:39:52,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-19 15:39:52,820 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:39:52,821 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:39:52,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-19 15:39:52,821 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:39:52,821 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:39:52,821 INFO L85 PathProgramCache]: Analyzing trace with hash -2127253175, now seen corresponding path program 1 times [2023-12-19 15:39:52,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:39:52,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046482970] [2023-12-19 15:39:52,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:39:52,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:39:52,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:39:52,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:39:52,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:39:52,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:39:52,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:39:52,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:39:52,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:39:52,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:39:52,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:39:52,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:39:52,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:39:52,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:39:52,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:39:52,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:39:52,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:39:52,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:39:52,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:39:52,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:39:52,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:39:52,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:39:52,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:39:52,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:39:52,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:39:52,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:39:52,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:39:52,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:39:52,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:39:52,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:39:52,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:39:53,001 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 15:39:53,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:39:53,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046482970] [2023-12-19 15:39:53,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046482970] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:39:53,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:39:53,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 15:39:53,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993222131] [2023-12-19 15:39:53,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:39:53,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 15:39:53,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:39:53,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 15:39:53,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 15:39:53,004 INFO L87 Difference]: Start difference. First operand 77 states and 113 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, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:39:53,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:39:53,065 INFO L93 Difference]: Finished difference Result 161 states and 236 transitions. [2023-12-19 15:39:53,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 15:39:53,066 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, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 104 [2023-12-19 15:39:53,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:39:53,070 INFO L225 Difference]: With dead ends: 161 [2023-12-19 15:39:53,071 INFO L226 Difference]: Without dead ends: 85 [2023-12-19 15:39:53,071 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:39:53,072 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 12 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 15:39:53,072 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 315 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 15:39:53,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2023-12-19 15:39:53,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 79. [2023-12-19 15:39:53,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 63 states have (on average 1.380952380952381) internal successors, (87), 63 states have internal predecessors, (87), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-19 15:39:53,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 115 transitions. [2023-12-19 15:39:53,081 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 115 transitions. Word has length 104 [2023-12-19 15:39:53,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:39:53,082 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 115 transitions. [2023-12-19 15:39:53,082 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, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:39:53,082 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 115 transitions. [2023-12-19 15:39:53,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-19 15:39:53,083 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:39:53,083 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:39:53,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-19 15:39:53,084 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:39:53,084 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:39:53,084 INFO L85 PathProgramCache]: Analyzing trace with hash -2069994873, now seen corresponding path program 1 times [2023-12-19 15:39:53,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:39:53,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204788177] [2023-12-19 15:39:53,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:39:53,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:39:53,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:39:53,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:39:53,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:39:53,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:39:53,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:39:53,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:39:53,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:39:53,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:39:53,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:39:53,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:39:53,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:39:53,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:39:53,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:39:53,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:39:53,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:39:53,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:39:53,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:39:53,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:39:53,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:39:53,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:39:53,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:39:53,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:39:53,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:39:53,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:39:53,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:39:53,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:39:53,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:39:53,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:39:53,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:39:53,302 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 15:39:53,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:39:53,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204788177] [2023-12-19 15:39:53,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204788177] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:39:53,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:39:53,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 15:39:53,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392884405] [2023-12-19 15:39:53,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:39:53,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 15:39:53,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:39:53,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 15:39:53,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 15:39:53,308 INFO L87 Difference]: Start difference. First operand 79 states and 115 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, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:39:53,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:39:53,351 INFO L93 Difference]: Finished difference Result 161 states and 234 transitions. [2023-12-19 15:39:53,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 15:39:53,352 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, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 104 [2023-12-19 15:39:53,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:39:53,354 INFO L225 Difference]: With dead ends: 161 [2023-12-19 15:39:53,354 INFO L226 Difference]: Without dead ends: 83 [2023-12-19 15:39:53,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:39:53,355 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 3 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 15:39:53,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 316 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 15:39:53,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2023-12-19 15:39:53,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 81. [2023-12-19 15:39:53,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 65 states have (on average 1.3692307692307693) internal successors, (89), 65 states have internal predecessors, (89), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-19 15:39:53,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 117 transitions. [2023-12-19 15:39:53,367 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 117 transitions. Word has length 104 [2023-12-19 15:39:53,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:39:53,367 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 117 transitions. [2023-12-19 15:39:53,367 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, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:39:53,367 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 117 transitions. [2023-12-19 15:39:53,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-19 15:39:53,368 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:39:53,368 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:39:53,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-19 15:39:53,369 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:39:53,369 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:39:53,369 INFO L85 PathProgramCache]: Analyzing trace with hash -2069935291, now seen corresponding path program 1 times [2023-12-19 15:39:53,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:39:53,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148399956] [2023-12-19 15:39:53,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:39:53,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:39:53,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:39:53,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:39:53,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:39:53,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:39:53,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:39:53,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:39:53,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:39:53,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:39:53,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:39:53,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:39:53,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:39:53,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:39:53,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:39:53,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:39:53,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:39:53,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:39:53,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:39:53,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:39:53,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:39:53,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:39:53,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:39:53,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:39:53,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:39:53,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:39:53,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:39:53,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:39:53,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:39:53,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:39:53,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:39:53,686 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 15:39:53,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:39:53,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148399956] [2023-12-19 15:39:53,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148399956] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:39:53,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:39:53,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 15:39:53,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598129703] [2023-12-19 15:39:53,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:39:53,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 15:39:53,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:39:53,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 15:39:53,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-19 15:39:53,688 INFO L87 Difference]: Start difference. First operand 81 states and 117 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, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:39:53,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:39:53,787 INFO L93 Difference]: Finished difference Result 241 states and 349 transitions. [2023-12-19 15:39:53,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 15:39:53,788 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, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 104 [2023-12-19 15:39:53,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:39:53,791 INFO L225 Difference]: With dead ends: 241 [2023-12-19 15:39:53,791 INFO L226 Difference]: Without dead ends: 161 [2023-12-19 15:39:53,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-19 15:39:53,797 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 76 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 15:39:53,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 303 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 15:39:53,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2023-12-19 15:39:53,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 153. [2023-12-19 15:39:53,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 122 states have (on average 1.3524590163934427) internal successors, (165), 122 states have internal predecessors, (165), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-19 15:39:53,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 221 transitions. [2023-12-19 15:39:53,808 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 221 transitions. Word has length 104 [2023-12-19 15:39:53,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:39:53,808 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 221 transitions. [2023-12-19 15:39:53,808 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, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:39:53,808 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 221 transitions. [2023-12-19 15:39:53,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-19 15:39:53,809 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:39:53,810 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:39:53,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-19 15:39:53,810 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:39:53,810 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:39:53,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1113492940, now seen corresponding path program 1 times [2023-12-19 15:39:53,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:39:53,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195354320] [2023-12-19 15:39:53,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:39:53,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:39:53,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:28,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:40:28,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:28,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:40:28,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:28,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:40:28,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:28,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:40:28,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:28,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:40:28,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:28,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:40:28,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:28,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:40:28,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:28,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:40:28,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:28,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:40:28,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:28,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:40:28,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:28,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:40:28,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:28,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:40:28,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:28,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:40:28,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:28,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:40:28,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:28,481 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 15:40:28,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:40:28,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195354320] [2023-12-19 15:40:28,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195354320] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:40:28,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:40:28,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2023-12-19 15:40:28,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532315421] [2023-12-19 15:40:28,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:40:28,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-12-19 15:40:28,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:40:28,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-12-19 15:40:28,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=377, Unknown=0, NotChecked=0, Total=462 [2023-12-19 15:40:28,485 INFO L87 Difference]: Start difference. First operand 153 states and 221 transitions. Second operand has 22 states, 18 states have (on average 2.111111111111111) internal successors, (38), 20 states have internal predecessors, (38), 9 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 7 states have call predecessors, (14), 9 states have call successors, (14) [2023-12-19 15:40:36,636 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 [] [2023-12-19 15:40:46,253 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-19 15:40:49,454 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-19 15:40:52,154 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-19 15:41:03,595 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-19 15:41:07,644 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-19 15:41:27,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-19 15:41:52,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-19 15:42:02,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-19 15:42:06,697 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-19 15:42:10,903 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-19 15:42:10,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:42:10,962 INFO L93 Difference]: Finished difference Result 458 states and 660 transitions. [2023-12-19 15:42:10,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-12-19 15:42:10,963 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 18 states have (on average 2.111111111111111) internal successors, (38), 20 states have internal predecessors, (38), 9 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 7 states have call predecessors, (14), 9 states have call successors, (14) Word has length 105 [2023-12-19 15:42:10,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:42:10,965 INFO L225 Difference]: With dead ends: 458 [2023-12-19 15:42:10,965 INFO L226 Difference]: Without dead ends: 378 [2023-12-19 15:42:10,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 396 ImplicationChecksByTransitivity, 68.2s TimeCoverageRelationStatistics Valid=454, Invalid=1703, Unknown=5, NotChecked=0, Total=2162 [2023-12-19 15:42:10,967 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 1936 mSDsluCounter, 1144 mSDsCounter, 0 mSdLazyCounter, 1337 mSolverCounterSat, 165 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 44.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1936 SdHoareTripleChecker+Valid, 1254 SdHoareTripleChecker+Invalid, 1509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 1337 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.0s IncrementalHoareTripleChecker+Time [2023-12-19 15:42:10,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1936 Valid, 1254 Invalid, 1509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 1337 Invalid, 7 Unknown, 0 Unchecked, 45.0s Time] [2023-12-19 15:42:10,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2023-12-19 15:42:10,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 164. [2023-12-19 15:42:10,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 133 states have (on average 1.368421052631579) internal successors, (182), 133 states have internal predecessors, (182), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-19 15:42:10,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 238 transitions. [2023-12-19 15:42:10,992 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 238 transitions. Word has length 105 [2023-12-19 15:42:10,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:42:10,992 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 238 transitions. [2023-12-19 15:42:10,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 18 states have (on average 2.111111111111111) internal successors, (38), 20 states have internal predecessors, (38), 9 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 7 states have call predecessors, (14), 9 states have call successors, (14) [2023-12-19 15:42:10,993 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 238 transitions. [2023-12-19 15:42:10,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-19 15:42:10,994 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:42:10,994 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:42:10,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-19 15:42:10,994 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:42:10,994 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:42:10,994 INFO L85 PathProgramCache]: Analyzing trace with hash -855327502, now seen corresponding path program 1 times [2023-12-19 15:42:10,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:42:10,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090814286] [2023-12-19 15:42:10,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:10,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:42:11,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:11,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:42:11,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:11,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:42:11,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:11,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:42:11,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:11,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:42:11,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:11,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:42:11,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:11,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:42:11,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:11,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:42:11,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:11,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:42:11,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:11,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:42:11,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:11,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:42:11,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:11,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:42:11,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:11,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:42:11,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:11,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:42:11,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:11,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:42:11,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:11,399 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 15:42:11,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:42:11,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090814286] [2023-12-19 15:42:11,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090814286] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:42:11,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:42:11,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-19 15:42:11,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513636069] [2023-12-19 15:42:11,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:42:11,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 15:42:11,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:42:11,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 15:42:11,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-12-19 15:42:11,401 INFO L87 Difference]: Start difference. First operand 164 states and 238 transitions. Second operand has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 9 states have internal predecessors, (38), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:42:11,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:42:11,909 INFO L93 Difference]: Finished difference Result 573 states and 811 transitions. [2023-12-19 15:42:11,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-19 15:42:11,910 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 9 states have internal predecessors, (38), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 105 [2023-12-19 15:42:11,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:42:11,912 INFO L225 Difference]: With dead ends: 573 [2023-12-19 15:42:11,912 INFO L226 Difference]: Without dead ends: 410 [2023-12-19 15:42:11,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2023-12-19 15:42:11,913 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 421 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 651 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-19 15:42:11,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [421 Valid, 651 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-19 15:42:11,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2023-12-19 15:42:11,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 264. [2023-12-19 15:42:11,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 209 states have (on average 1.3157894736842106) internal successors, (275), 211 states have internal predecessors, (275), 48 states have call successors, (48), 6 states have call predecessors, (48), 6 states have return successors, (48), 46 states have call predecessors, (48), 48 states have call successors, (48) [2023-12-19 15:42:11,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 371 transitions. [2023-12-19 15:42:11,975 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 371 transitions. Word has length 105 [2023-12-19 15:42:11,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:42:11,975 INFO L495 AbstractCegarLoop]: Abstraction has 264 states and 371 transitions. [2023-12-19 15:42:11,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 9 states have internal predecessors, (38), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:42:11,976 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 371 transitions. [2023-12-19 15:42:11,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-19 15:42:11,978 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:42:11,978 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:42:11,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-19 15:42:11,978 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:42:11,978 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:42:11,978 INFO L85 PathProgramCache]: Analyzing trace with hash -646711715, now seen corresponding path program 1 times [2023-12-19 15:42:11,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:42:11,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756420178] [2023-12-19 15:42:11,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:11,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:42:12,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:12,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:42:12,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:12,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:42:12,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:12,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:42:12,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:12,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:42:12,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:12,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:42:12,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:12,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:42:12,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:12,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:42:12,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:12,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:42:12,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:12,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:42:12,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:12,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:42:12,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:12,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:42:12,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:12,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:42:12,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:12,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:42:12,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:12,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:42:12,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:12,119 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 15:42:12,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:42:12,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756420178] [2023-12-19 15:42:12,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756420178] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:42:12,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:42:12,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 15:42:12,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108704903] [2023-12-19 15:42:12,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:42:12,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 15:42:12,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:42:12,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 15:42:12,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:42:12,121 INFO L87 Difference]: Start difference. First operand 264 states and 371 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:42:12,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:42:12,193 INFO L93 Difference]: Finished difference Result 586 states and 815 transitions. [2023-12-19 15:42:12,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 15:42:12,193 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 106 [2023-12-19 15:42:12,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:42:12,197 INFO L225 Difference]: With dead ends: 586 [2023-12-19 15:42:12,197 INFO L226 Difference]: Without dead ends: 335 [2023-12-19 15:42:12,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-19 15:42:12,198 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 95 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 15:42:12,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 435 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 15:42:12,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2023-12-19 15:42:12,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 332. [2023-12-19 15:42:12,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 269 states have (on average 1.312267657992565) internal successors, (353), 272 states have internal predecessors, (353), 52 states have call successors, (52), 10 states have call predecessors, (52), 10 states have return successors, (52), 49 states have call predecessors, (52), 52 states have call successors, (52) [2023-12-19 15:42:12,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 457 transitions. [2023-12-19 15:42:12,234 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 457 transitions. Word has length 106 [2023-12-19 15:42:12,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:42:12,235 INFO L495 AbstractCegarLoop]: Abstraction has 332 states and 457 transitions. [2023-12-19 15:42:12,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:42:12,235 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 457 transitions. [2023-12-19 15:42:12,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-19 15:42:12,236 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:42:12,236 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:42:12,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-19 15:42:12,236 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:42:12,236 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:42:12,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1926575393, now seen corresponding path program 1 times [2023-12-19 15:42:12,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:42:12,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380097137] [2023-12-19 15:42:12,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:12,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:42:12,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:13,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:42:13,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:13,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:42:13,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:13,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:42:13,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:13,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:42:13,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:13,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:42:13,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:13,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:42:13,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:13,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:42:13,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:13,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:42:13,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:13,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:42:13,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:13,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:42:13,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:13,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:42:13,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:13,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:42:13,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:13,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:42:13,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:13,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:42:13,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:13,239 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 15:42:13,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:42:13,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380097137] [2023-12-19 15:42:13,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380097137] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:42:13,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:42:13,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-19 15:42:13,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390691634] [2023-12-19 15:42:13,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:42:13,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-19 15:42:13,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:42:13,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-19 15:42:13,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-12-19 15:42:13,241 INFO L87 Difference]: Start difference. First operand 332 states and 457 transitions. Second operand has 13 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 12 states have internal predecessors, (39), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-19 15:42:13,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:42:13,953 INFO L93 Difference]: Finished difference Result 677 states and 930 transitions. [2023-12-19 15:42:13,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-19 15:42:13,964 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 12 states have internal predecessors, (39), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 106 [2023-12-19 15:42:13,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:42:13,967 INFO L225 Difference]: With dead ends: 677 [2023-12-19 15:42:13,967 INFO L226 Difference]: Without dead ends: 362 [2023-12-19 15:42:13,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=139, Invalid=413, Unknown=0, NotChecked=0, Total=552 [2023-12-19 15:42:13,970 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 469 mSDsluCounter, 872 mSDsCounter, 0 mSdLazyCounter, 657 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 469 SdHoareTripleChecker+Valid, 1022 SdHoareTripleChecker+Invalid, 749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-19 15:42:13,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [469 Valid, 1022 Invalid, 749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 657 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-19 15:42:13,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2023-12-19 15:42:13,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 284. [2023-12-19 15:42:13,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 229 states have (on average 1.3056768558951966) internal successors, (299), 231 states have internal predecessors, (299), 46 states have call successors, (46), 8 states have call predecessors, (46), 8 states have return successors, (46), 44 states have call predecessors, (46), 46 states have call successors, (46) [2023-12-19 15:42:13,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 391 transitions. [2023-12-19 15:42:13,992 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 391 transitions. Word has length 106 [2023-12-19 15:42:13,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:42:13,992 INFO L495 AbstractCegarLoop]: Abstraction has 284 states and 391 transitions. [2023-12-19 15:42:13,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 12 states have internal predecessors, (39), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-19 15:42:13,992 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 391 transitions. [2023-12-19 15:42:13,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-19 15:42:13,993 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:42:13,993 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:42:13,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-19 15:42:13,993 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:42:13,994 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:42:13,994 INFO L85 PathProgramCache]: Analyzing trace with hash 374247197, now seen corresponding path program 1 times [2023-12-19 15:42:13,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:42:13,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273510397] [2023-12-19 15:42:13,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:13,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:42:14,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:14,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:42:14,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:14,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:42:14,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:14,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:42:14,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:14,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:42:14,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:14,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:42:14,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:14,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:42:14,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:14,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:42:14,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:14,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:42:14,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:14,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:42:14,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:14,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:42:14,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:14,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:42:14,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:14,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:42:14,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:14,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:42:14,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:14,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:42:14,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:14,210 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 15:42:14,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:42:14,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273510397] [2023-12-19 15:42:14,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273510397] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:42:14,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:42:14,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 15:42:14,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653687165] [2023-12-19 15:42:14,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:42:14,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 15:42:14,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:42:14,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 15:42:14,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:42:14,212 INFO L87 Difference]: Start difference. First operand 284 states and 391 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:42:14,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:42:14,350 INFO L93 Difference]: Finished difference Result 530 states and 731 transitions. [2023-12-19 15:42:14,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 15:42:14,350 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 106 [2023-12-19 15:42:14,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:42:14,351 INFO L225 Difference]: With dead ends: 530 [2023-12-19 15:42:14,351 INFO L226 Difference]: Without dead ends: 283 [2023-12-19 15:42:14,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-19 15:42:14,352 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 103 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 15:42:14,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 426 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 15:42:14,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2023-12-19 15:42:14,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 276. [2023-12-19 15:42:14,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 221 states have (on average 1.2986425339366516) internal successors, (287), 223 states have internal predecessors, (287), 46 states have call successors, (46), 8 states have call predecessors, (46), 8 states have return successors, (46), 44 states have call predecessors, (46), 46 states have call successors, (46) [2023-12-19 15:42:14,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 379 transitions. [2023-12-19 15:42:14,374 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 379 transitions. Word has length 106 [2023-12-19 15:42:14,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:42:14,375 INFO L495 AbstractCegarLoop]: Abstraction has 276 states and 379 transitions. [2023-12-19 15:42:14,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:42:14,375 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 379 transitions. [2023-12-19 15:42:14,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-19 15:42:14,376 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:42:14,376 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:42:14,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-19 15:42:14,377 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:42:14,377 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:42:14,377 INFO L85 PathProgramCache]: Analyzing trace with hash 2134532864, now seen corresponding path program 1 times [2023-12-19 15:42:14,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:42:14,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647015530] [2023-12-19 15:42:14,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:14,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:42:14,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:14,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:42:14,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:14,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:42:14,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:14,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:42:14,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:14,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:42:14,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:14,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:42:14,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:14,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:42:14,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:14,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:42:14,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:14,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:42:14,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:14,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:42:14,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:14,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:42:14,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:14,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:42:14,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:14,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:42:14,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:14,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:42:14,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:14,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:42:14,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:14,428 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 15:42:14,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:42:14,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647015530] [2023-12-19 15:42:14,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647015530] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:42:14,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:42:14,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 15:42:14,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766271330] [2023-12-19 15:42:14,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:42:14,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 15:42:14,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:42:14,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 15:42:14,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 15:42:14,429 INFO L87 Difference]: Start difference. First operand 276 states and 379 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:42:14,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:42:14,460 INFO L93 Difference]: Finished difference Result 569 states and 784 transitions. [2023-12-19 15:42:14,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 15:42:14,460 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 108 [2023-12-19 15:42:14,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:42:14,461 INFO L225 Difference]: With dead ends: 569 [2023-12-19 15:42:14,461 INFO L226 Difference]: Without dead ends: 330 [2023-12-19 15:42:14,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 15:42:14,462 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 30 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 15:42:14,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 218 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 15:42:14,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2023-12-19 15:42:14,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 279. [2023-12-19 15:42:14,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 224 states have (on average 1.2946428571428572) internal successors, (290), 226 states have internal predecessors, (290), 46 states have call successors, (46), 8 states have call predecessors, (46), 8 states have return successors, (46), 44 states have call predecessors, (46), 46 states have call successors, (46) [2023-12-19 15:42:14,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 382 transitions. [2023-12-19 15:42:14,485 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 382 transitions. Word has length 108 [2023-12-19 15:42:14,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:42:14,485 INFO L495 AbstractCegarLoop]: Abstraction has 279 states and 382 transitions. [2023-12-19 15:42:14,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:42:14,486 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 382 transitions. [2023-12-19 15:42:14,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-19 15:42:14,486 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:42:14,486 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:42:14,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-19 15:42:14,487 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:42:14,487 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:42:14,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1902268994, now seen corresponding path program 1 times [2023-12-19 15:42:14,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:42:14,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986021426] [2023-12-19 15:42:14,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:14,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:42:14,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:14,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:42:14,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:14,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:42:14,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:14,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:42:14,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:14,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:42:14,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:14,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:42:14,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:14,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:42:14,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:14,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:42:14,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:14,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:42:14,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:14,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:42:14,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:14,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:42:14,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:14,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:42:14,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:14,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:42:14,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:14,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:42:14,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:14,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:42:14,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:14,593 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 15:42:14,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:42:14,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986021426] [2023-12-19 15:42:14,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986021426] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:42:14,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:42:14,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 15:42:14,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943705798] [2023-12-19 15:42:14,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:42:14,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 15:42:14,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:42:14,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 15:42:14,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:42:14,594 INFO L87 Difference]: Start difference. First operand 279 states and 382 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:42:14,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:42:14,641 INFO L93 Difference]: Finished difference Result 566 states and 778 transitions. [2023-12-19 15:42:14,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 15:42:14,641 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 108 [2023-12-19 15:42:14,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:42:14,643 INFO L225 Difference]: With dead ends: 566 [2023-12-19 15:42:14,643 INFO L226 Difference]: Without dead ends: 324 [2023-12-19 15:42:14,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-19 15:42:14,644 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 63 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 15:42:14,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 401 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 15:42:14,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2023-12-19 15:42:14,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 288. [2023-12-19 15:42:14,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 233 states have (on average 1.2832618025751072) internal successors, (299), 235 states have internal predecessors, (299), 46 states have call successors, (46), 8 states have call predecessors, (46), 8 states have return successors, (46), 44 states have call predecessors, (46), 46 states have call successors, (46) [2023-12-19 15:42:14,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 391 transitions. [2023-12-19 15:42:14,666 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 391 transitions. Word has length 108 [2023-12-19 15:42:14,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:42:14,666 INFO L495 AbstractCegarLoop]: Abstraction has 288 states and 391 transitions. [2023-12-19 15:42:14,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:42:14,666 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 391 transitions. [2023-12-19 15:42:14,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-19 15:42:14,667 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:42:14,667 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:42:14,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-19 15:42:14,667 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:42:14,668 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:42:14,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1454426483, now seen corresponding path program 1 times [2023-12-19 15:42:14,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:42:14,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962159651] [2023-12-19 15:42:14,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:14,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:42:14,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:15,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:42:15,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:15,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:42:15,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:15,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:42:15,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:15,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:42:15,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:15,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:42:15,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:15,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:42:15,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:15,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:42:15,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:15,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:42:15,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:15,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:42:15,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:15,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:42:15,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:15,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:42:15,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:15,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:42:15,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:15,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:42:15,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:15,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:42:15,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:15,322 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 15:42:15,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:42:15,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962159651] [2023-12-19 15:42:15,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962159651] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:42:15,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:42:15,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-19 15:42:15,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455945343] [2023-12-19 15:42:15,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:42:15,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-19 15:42:15,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:42:15,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-19 15:42:15,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-19 15:42:15,323 INFO L87 Difference]: Start difference. First operand 288 states and 391 transitions. Second operand has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:42:15,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:42:15,835 INFO L93 Difference]: Finished difference Result 611 states and 835 transitions. [2023-12-19 15:42:15,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-19 15:42:15,835 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 108 [2023-12-19 15:42:15,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:42:15,837 INFO L225 Difference]: With dead ends: 611 [2023-12-19 15:42:15,837 INFO L226 Difference]: Without dead ends: 455 [2023-12-19 15:42:15,837 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=141, Invalid=365, Unknown=0, NotChecked=0, Total=506 [2023-12-19 15:42:15,838 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 599 mSDsluCounter, 911 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 599 SdHoareTripleChecker+Valid, 1108 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 15:42:15,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [599 Valid, 1108 Invalid, 455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 15:42:15,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2023-12-19 15:42:15,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 295. [2023-12-19 15:42:15,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 240 states have (on average 1.2916666666666667) internal successors, (310), 242 states have internal predecessors, (310), 46 states have call successors, (46), 8 states have call predecessors, (46), 8 states have return successors, (46), 44 states have call predecessors, (46), 46 states have call successors, (46) [2023-12-19 15:42:15,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 402 transitions. [2023-12-19 15:42:15,861 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 402 transitions. Word has length 108 [2023-12-19 15:42:15,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:42:15,861 INFO L495 AbstractCegarLoop]: Abstraction has 295 states and 402 transitions. [2023-12-19 15:42:15,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:42:15,862 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 402 transitions. [2023-12-19 15:42:15,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-19 15:42:15,862 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:42:15,862 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:42:15,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-19 15:42:15,862 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:42:15,863 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:42:15,863 INFO L85 PathProgramCache]: Analyzing trace with hash 433358129, now seen corresponding path program 1 times [2023-12-19 15:42:15,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:42:15,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552932879] [2023-12-19 15:42:15,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:15,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:42:15,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:16,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:42:16,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:16,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:42:16,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:16,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:42:16,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:16,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:42:16,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:16,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:42:16,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:16,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:42:16,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:16,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:42:16,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:16,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:42:16,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:16,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:42:16,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:16,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:42:16,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:16,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:42:16,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:16,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:42:16,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:16,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:42:16,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:16,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:42:16,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:16,206 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 15:42:16,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:42:16,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552932879] [2023-12-19 15:42:16,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552932879] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:42:16,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:42:16,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-19 15:42:16,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457134020] [2023-12-19 15:42:16,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:42:16,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-19 15:42:16,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:42:16,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-19 15:42:16,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-12-19 15:42:16,208 INFO L87 Difference]: Start difference. First operand 295 states and 402 transitions. Second operand has 10 states, 9 states have (on average 4.555555555555555) internal successors, (41), 10 states have internal predecessors, (41), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-19 15:42:16,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:42:16,679 INFO L93 Difference]: Finished difference Result 570 states and 780 transitions. [2023-12-19 15:42:16,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-19 15:42:16,679 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.555555555555555) internal successors, (41), 10 states have internal predecessors, (41), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 108 [2023-12-19 15:42:16,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:42:16,681 INFO L225 Difference]: With dead ends: 570 [2023-12-19 15:42:16,681 INFO L226 Difference]: Without dead ends: 414 [2023-12-19 15:42:16,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2023-12-19 15:42:16,682 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 375 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 15:42:16,682 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 574 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 15:42:16,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2023-12-19 15:42:16,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 295. [2023-12-19 15:42:16,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 240 states have (on average 1.2833333333333334) internal successors, (308), 242 states have internal predecessors, (308), 46 states have call successors, (46), 8 states have call predecessors, (46), 8 states have return successors, (46), 44 states have call predecessors, (46), 46 states have call successors, (46) [2023-12-19 15:42:16,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 400 transitions. [2023-12-19 15:42:16,706 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 400 transitions. Word has length 108 [2023-12-19 15:42:16,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:42:16,707 INFO L495 AbstractCegarLoop]: Abstraction has 295 states and 400 transitions. [2023-12-19 15:42:16,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.555555555555555) internal successors, (41), 10 states have internal predecessors, (41), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-19 15:42:16,707 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 400 transitions. [2023-12-19 15:42:16,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-19 15:42:16,707 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:42:16,708 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:42:16,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-19 15:42:16,708 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:42:16,708 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:42:16,708 INFO L85 PathProgramCache]: Analyzing trace with hash 691523567, now seen corresponding path program 1 times [2023-12-19 15:42:16,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:42:16,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68050839] [2023-12-19 15:42:16,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:16,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:42:16,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:17,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:42:17,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:17,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:42:17,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:17,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:42:17,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:17,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:42:17,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:17,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:42:17,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:17,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:42:17,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:17,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:42:17,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:17,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:42:17,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:17,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:42:17,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:17,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:42:17,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:17,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:42:17,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:17,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:42:17,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:17,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:42:17,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:17,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:42:17,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:17,219 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 15:42:17,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:42:17,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68050839] [2023-12-19 15:42:17,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68050839] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:42:17,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:42:17,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-19 15:42:17,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631899692] [2023-12-19 15:42:17,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:42:17,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-19 15:42:17,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:42:17,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-19 15:42:17,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-12-19 15:42:17,221 INFO L87 Difference]: Start difference. First operand 295 states and 400 transitions. Second operand has 10 states, 8 states have (on average 5.125) internal successors, (41), 9 states have internal predecessors, (41), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-19 15:42:17,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:42:17,508 INFO L93 Difference]: Finished difference Result 523 states and 714 transitions. [2023-12-19 15:42:17,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-19 15:42:17,508 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 5.125) internal successors, (41), 9 states have internal predecessors, (41), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 108 [2023-12-19 15:42:17,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:42:17,509 INFO L225 Difference]: With dead ends: 523 [2023-12-19 15:42:17,510 INFO L226 Difference]: Without dead ends: 367 [2023-12-19 15:42:17,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2023-12-19 15:42:17,510 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 206 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 736 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 15:42:17,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 736 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 15:42:17,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2023-12-19 15:42:17,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 297. [2023-12-19 15:42:17,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 242 states have (on average 1.28099173553719) internal successors, (310), 244 states have internal predecessors, (310), 46 states have call successors, (46), 8 states have call predecessors, (46), 8 states have return successors, (46), 44 states have call predecessors, (46), 46 states have call successors, (46) [2023-12-19 15:42:17,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 402 transitions. [2023-12-19 15:42:17,536 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 402 transitions. Word has length 108 [2023-12-19 15:42:17,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:42:17,536 INFO L495 AbstractCegarLoop]: Abstraction has 297 states and 402 transitions. [2023-12-19 15:42:17,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 5.125) internal successors, (41), 9 states have internal predecessors, (41), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-19 15:42:17,536 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 402 transitions. [2023-12-19 15:42:17,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-19 15:42:17,537 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:42:17,537 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:42:17,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-19 15:42:17,537 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:42:17,537 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:42:17,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1857770587, now seen corresponding path program 1 times [2023-12-19 15:42:17,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:42:17,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730142496] [2023-12-19 15:42:17,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:17,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:42:17,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:18,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:42:18,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:18,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:42:18,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:18,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:42:18,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:18,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:42:18,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:18,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:42:18,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:18,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:42:18,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:18,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:42:18,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:18,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:42:18,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:18,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:42:18,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:18,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:42:18,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:18,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:42:18,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:18,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:42:18,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:18,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:42:18,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:18,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:42:18,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:18,139 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 15:42:18,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:42:18,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730142496] [2023-12-19 15:42:18,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730142496] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:42:18,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:42:18,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-12-19 15:42:18,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347722191] [2023-12-19 15:42:18,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:42:18,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-19 15:42:18,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:42:18,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-19 15:42:18,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2023-12-19 15:42:18,141 INFO L87 Difference]: Start difference. First operand 297 states and 402 transitions. Second operand has 15 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 15 states have internal predecessors, (43), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-19 15:42:18,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:42:18,997 INFO L93 Difference]: Finished difference Result 592 states and 805 transitions. [2023-12-19 15:42:18,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-19 15:42:18,997 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 15 states have internal predecessors, (43), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 110 [2023-12-19 15:42:18,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:42:19,001 INFO L225 Difference]: With dead ends: 592 [2023-12-19 15:42:19,001 INFO L226 Difference]: Without dead ends: 432 [2023-12-19 15:42:19,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=239, Invalid=753, Unknown=0, NotChecked=0, Total=992 [2023-12-19 15:42:19,003 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 670 mSDsluCounter, 868 mSDsCounter, 0 mSdLazyCounter, 671 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 670 SdHoareTripleChecker+Valid, 990 SdHoareTripleChecker+Invalid, 755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-19 15:42:19,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [670 Valid, 990 Invalid, 755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 671 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-19 15:42:19,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2023-12-19 15:42:19,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 282. [2023-12-19 15:42:19,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 243 states have (on average 1.3209876543209877) internal successors, (321), 244 states have internal predecessors, (321), 32 states have call successors, (32), 6 states have call predecessors, (32), 6 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) [2023-12-19 15:42:19,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 385 transitions. [2023-12-19 15:42:19,025 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 385 transitions. Word has length 110 [2023-12-19 15:42:19,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:42:19,025 INFO L495 AbstractCegarLoop]: Abstraction has 282 states and 385 transitions. [2023-12-19 15:42:19,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 15 states have internal predecessors, (43), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-19 15:42:19,025 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 385 transitions. [2023-12-19 15:42:19,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-19 15:42:19,027 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:42:19,027 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:42:19,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-19 15:42:19,027 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:42:19,028 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:42:19,028 INFO L85 PathProgramCache]: Analyzing trace with hash 173149895, now seen corresponding path program 1 times [2023-12-19 15:42:19,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:42:19,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539888542] [2023-12-19 15:42:19,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:19,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:42:19,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:19,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:42:19,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:19,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:42:19,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:19,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:42:19,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:19,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:42:19,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:19,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:42:19,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:19,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:42:19,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:19,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:42:19,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:19,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:42:19,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:19,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:42:19,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:19,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:42:19,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:19,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:42:19,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:19,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:42:19,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:19,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:42:19,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:19,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:42:19,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:19,258 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 15:42:19,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:42:19,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539888542] [2023-12-19 15:42:19,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539888542] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:42:19,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:42:19,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 15:42:19,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889796631] [2023-12-19 15:42:19,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:42:19,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 15:42:19,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:42:19,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 15:42:19,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-19 15:42:19,260 INFO L87 Difference]: Start difference. First operand 282 states and 385 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:42:19,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:42:19,367 INFO L93 Difference]: Finished difference Result 502 states and 687 transitions. [2023-12-19 15:42:19,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 15:42:19,368 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 110 [2023-12-19 15:42:19,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:42:19,369 INFO L225 Difference]: With dead ends: 502 [2023-12-19 15:42:19,369 INFO L226 Difference]: Without dead ends: 329 [2023-12-19 15:42:19,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-12-19 15:42:19,370 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 184 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 15:42:19,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 444 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 15:42:19,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2023-12-19 15:42:19,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 280. [2023-12-19 15:42:19,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 241 states have (on average 1.3153526970954357) internal successors, (317), 242 states have internal predecessors, (317), 32 states have call successors, (32), 6 states have call predecessors, (32), 6 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) [2023-12-19 15:42:19,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 381 transitions. [2023-12-19 15:42:19,391 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 381 transitions. Word has length 110 [2023-12-19 15:42:19,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:42:19,391 INFO L495 AbstractCegarLoop]: Abstraction has 280 states and 381 transitions. [2023-12-19 15:42:19,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:42:19,391 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 381 transitions. [2023-12-19 15:42:19,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-19 15:42:19,392 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:42:19,392 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:42:19,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-19 15:42:19,392 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:42:19,392 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:42:19,393 INFO L85 PathProgramCache]: Analyzing trace with hash 991276688, now seen corresponding path program 1 times [2023-12-19 15:42:19,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:42:19,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814804252] [2023-12-19 15:42:19,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:19,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:42:19,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:19,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:42:19,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:19,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:42:19,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:19,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:42:19,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:19,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:42:19,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:19,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:42:19,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:19,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:42:19,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:19,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:42:19,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:19,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:42:19,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:19,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:42:19,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:19,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:42:19,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:19,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:42:19,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:19,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:42:19,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:19,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:42:19,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:19,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:42:19,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:19,692 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 15:42:19,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:42:19,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814804252] [2023-12-19 15:42:19,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814804252] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:42:19,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:42:19,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-19 15:42:19,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018931100] [2023-12-19 15:42:19,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:42:19,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-19 15:42:19,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:42:19,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-19 15:42:19,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-12-19 15:42:19,693 INFO L87 Difference]: Start difference. First operand 280 states and 381 transitions. Second operand has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-19 15:42:20,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:42:20,122 INFO L93 Difference]: Finished difference Result 659 states and 892 transitions. [2023-12-19 15:42:20,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 15:42:20,136 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 111 [2023-12-19 15:42:20,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:42:20,137 INFO L225 Difference]: With dead ends: 659 [2023-12-19 15:42:20,137 INFO L226 Difference]: Without dead ends: 380 [2023-12-19 15:42:20,138 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2023-12-19 15:42:20,138 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 366 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 15:42:20,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [366 Valid, 631 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 15:42:20,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2023-12-19 15:42:20,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 279. [2023-12-19 15:42:20,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 240 states have (on average 1.3125) internal successors, (315), 241 states have internal predecessors, (315), 32 states have call successors, (32), 6 states have call predecessors, (32), 6 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) [2023-12-19 15:42:20,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 379 transitions. [2023-12-19 15:42:20,159 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 379 transitions. Word has length 111 [2023-12-19 15:42:20,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:42:20,159 INFO L495 AbstractCegarLoop]: Abstraction has 279 states and 379 transitions. [2023-12-19 15:42:20,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-19 15:42:20,159 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 379 transitions. [2023-12-19 15:42:20,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-19 15:42:20,160 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:42:20,160 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:42:20,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-19 15:42:20,160 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:42:20,160 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:42:20,160 INFO L85 PathProgramCache]: Analyzing trace with hash -19840562, now seen corresponding path program 1 times [2023-12-19 15:42:20,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:42:20,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277044436] [2023-12-19 15:42:20,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:20,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:42:20,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:20,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:42:20,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:20,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:42:20,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:20,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:42:20,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:20,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:42:20,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:20,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:42:20,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:20,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:42:20,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:20,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:42:20,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:20,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:42:20,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:20,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:42:20,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:20,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:42:20,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:20,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:42:20,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:20,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:42:20,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:20,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:42:20,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:20,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:42:20,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:20,310 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 15:42:20,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:42:20,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277044436] [2023-12-19 15:42:20,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277044436] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:42:20,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:42:20,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 15:42:20,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173201454] [2023-12-19 15:42:20,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:42:20,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 15:42:20,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:42:20,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 15:42:20,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:42:20,311 INFO L87 Difference]: Start difference. First operand 279 states and 379 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:42:20,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:42:20,388 INFO L93 Difference]: Finished difference Result 560 states and 759 transitions. [2023-12-19 15:42:20,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 15:42:20,388 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 111 [2023-12-19 15:42:20,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:42:20,390 INFO L225 Difference]: With dead ends: 560 [2023-12-19 15:42:20,390 INFO L226 Difference]: Without dead ends: 282 [2023-12-19 15:42:20,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-19 15:42:20,391 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 123 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 15:42:20,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 448 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 15:42:20,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2023-12-19 15:42:20,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 267. [2023-12-19 15:42:20,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 228 states have (on average 1.2982456140350878) internal successors, (296), 229 states have internal predecessors, (296), 32 states have call successors, (32), 6 states have call predecessors, (32), 6 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) [2023-12-19 15:42:20,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 360 transitions. [2023-12-19 15:42:20,417 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 360 transitions. Word has length 111 [2023-12-19 15:42:20,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:42:20,417 INFO L495 AbstractCegarLoop]: Abstraction has 267 states and 360 transitions. [2023-12-19 15:42:20,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:42:20,418 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 360 transitions. [2023-12-19 15:42:20,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-19 15:42:20,418 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:42:20,418 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:42:20,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-19 15:42:20,418 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:42:20,419 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:42:20,419 INFO L85 PathProgramCache]: Analyzing trace with hash -693344004, now seen corresponding path program 1 times [2023-12-19 15:42:20,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:42:20,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200604496] [2023-12-19 15:42:20,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:20,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:42:20,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:20,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:42:20,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:20,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:42:20,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:20,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:42:20,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:20,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:42:20,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:20,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:42:20,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:20,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:42:20,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:20,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:42:20,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:20,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:42:20,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:20,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:42:20,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:20,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:42:20,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:20,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:42:20,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:20,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:42:20,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:20,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:42:20,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:20,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:42:20,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:20,538 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 15:42:20,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:42:20,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200604496] [2023-12-19 15:42:20,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200604496] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:42:20,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:42:20,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 15:42:20,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961833388] [2023-12-19 15:42:20,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:42:20,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 15:42:20,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:42:20,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 15:42:20,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:42:20,539 INFO L87 Difference]: Start difference. First operand 267 states and 360 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:42:20,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:42:20,609 INFO L93 Difference]: Finished difference Result 535 states and 720 transitions. [2023-12-19 15:42:20,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 15:42:20,609 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 111 [2023-12-19 15:42:20,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:42:20,610 INFO L225 Difference]: With dead ends: 535 [2023-12-19 15:42:20,610 INFO L226 Difference]: Without dead ends: 269 [2023-12-19 15:42:20,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-19 15:42:20,611 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 135 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 15:42:20,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 317 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 15:42:20,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2023-12-19 15:42:20,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 267. [2023-12-19 15:42:20,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 228 states have (on average 1.293859649122807) internal successors, (295), 229 states have internal predecessors, (295), 32 states have call successors, (32), 6 states have call predecessors, (32), 6 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) [2023-12-19 15:42:20,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 359 transitions. [2023-12-19 15:42:20,631 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 359 transitions. Word has length 111 [2023-12-19 15:42:20,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:42:20,631 INFO L495 AbstractCegarLoop]: Abstraction has 267 states and 359 transitions. [2023-12-19 15:42:20,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:42:20,631 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 359 transitions. [2023-12-19 15:42:20,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-19 15:42:20,632 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:42:20,632 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:42:20,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-19 15:42:20,632 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:42:20,632 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:42:20,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1503691300, now seen corresponding path program 1 times [2023-12-19 15:42:20,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:42:20,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898261210] [2023-12-19 15:42:20,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:20,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:42:20,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:21,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:42:21,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:21,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:42:21,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:21,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:42:21,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:21,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:42:21,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:21,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:42:21,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:21,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:42:21,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:21,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:42:21,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:21,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:42:21,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:21,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:42:21,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:21,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:42:21,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:21,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:42:21,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:21,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:42:21,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:21,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:42:21,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:21,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:42:21,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:21,139 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 15:42:21,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:42:21,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898261210] [2023-12-19 15:42:21,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898261210] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:42:21,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:42:21,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-19 15:42:21,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250950973] [2023-12-19 15:42:21,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:42:21,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-19 15:42:21,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:42:21,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-19 15:42:21,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-19 15:42:21,140 INFO L87 Difference]: Start difference. First operand 267 states and 359 transitions. Second operand has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 8 states have internal predecessors, (45), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-19 15:42:21,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:42:21,342 INFO L93 Difference]: Finished difference Result 296 states and 394 transitions. [2023-12-19 15:42:21,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 15:42:21,343 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 8 states have internal predecessors, (45), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 112 [2023-12-19 15:42:21,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:42:21,344 INFO L225 Difference]: With dead ends: 296 [2023-12-19 15:42:21,344 INFO L226 Difference]: Without dead ends: 294 [2023-12-19 15:42:21,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-12-19 15:42:21,345 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 236 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 15:42:21,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 410 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 15:42:21,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2023-12-19 15:42:21,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 273. [2023-12-19 15:42:21,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 234 states have (on average 1.2863247863247864) internal successors, (301), 235 states have internal predecessors, (301), 32 states have call successors, (32), 6 states have call predecessors, (32), 6 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) [2023-12-19 15:42:21,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 365 transitions. [2023-12-19 15:42:21,369 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 365 transitions. Word has length 112 [2023-12-19 15:42:21,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:42:21,370 INFO L495 AbstractCegarLoop]: Abstraction has 273 states and 365 transitions. [2023-12-19 15:42:21,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 8 states have internal predecessors, (45), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-19 15:42:21,370 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 365 transitions. [2023-12-19 15:42:21,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-19 15:42:21,371 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:42:21,371 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:42:21,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-19 15:42:21,371 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:42:21,371 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:42:21,371 INFO L85 PathProgramCache]: Analyzing trace with hash 1503750882, now seen corresponding path program 1 times [2023-12-19 15:42:21,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:42:21,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621341375] [2023-12-19 15:42:21,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:21,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:42:21,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:21,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:42:21,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:21,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:42:21,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:21,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:42:21,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:21,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:42:21,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:21,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:42:21,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:21,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:42:21,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:21,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:42:21,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:21,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:42:21,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:21,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:42:21,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:21,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:42:21,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:21,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:42:21,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:21,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:42:21,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:21,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:42:21,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:21,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:42:21,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:21,667 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 15:42:21,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:42:21,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621341375] [2023-12-19 15:42:21,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621341375] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:42:21,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:42:21,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-19 15:42:21,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716621198] [2023-12-19 15:42:21,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:42:21,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-19 15:42:21,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:42:21,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-19 15:42:21,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-19 15:42:21,670 INFO L87 Difference]: Start difference. First operand 273 states and 365 transitions. Second operand has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 8 states have internal predecessors, (45), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-19 15:42:21,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:42:21,858 INFO L93 Difference]: Finished difference Result 586 states and 778 transitions. [2023-12-19 15:42:21,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 15:42:21,858 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 8 states have internal predecessors, (45), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 112 [2023-12-19 15:42:21,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:42:21,859 INFO L225 Difference]: With dead ends: 586 [2023-12-19 15:42:21,859 INFO L226 Difference]: Without dead ends: 314 [2023-12-19 15:42:21,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-12-19 15:42:21,860 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 154 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 15:42:21,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 474 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 15:42:21,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2023-12-19 15:42:21,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 313. [2023-12-19 15:42:21,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 258 states have (on average 1.248062015503876) internal successors, (322), 260 states have internal predecessors, (322), 44 states have call successors, (44), 10 states have call predecessors, (44), 10 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2023-12-19 15:42:21,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 410 transitions. [2023-12-19 15:42:21,902 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 410 transitions. Word has length 112 [2023-12-19 15:42:21,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:42:21,903 INFO L495 AbstractCegarLoop]: Abstraction has 313 states and 410 transitions. [2023-12-19 15:42:21,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 8 states have internal predecessors, (45), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-19 15:42:21,903 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 410 transitions. [2023-12-19 15:42:21,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-19 15:42:21,903 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:42:21,903 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:42:21,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-19 15:42:21,904 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:42:21,904 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:42:21,904 INFO L85 PathProgramCache]: Analyzing trace with hash 1561009184, now seen corresponding path program 1 times [2023-12-19 15:42:21,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:42:21,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176131334] [2023-12-19 15:42:21,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:21,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:42:21,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:22,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:42:22,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:22,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:42:22,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:22,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:42:22,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:22,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:42:22,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:22,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:42:22,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:22,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:42:22,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:22,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:42:22,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:22,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:42:22,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:22,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:42:22,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:22,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:42:22,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:22,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:42:22,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:22,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:42:22,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:22,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:42:22,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:22,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:42:22,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:22,139 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 15:42:22,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:42:22,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176131334] [2023-12-19 15:42:22,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176131334] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:42:22,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:42:22,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 15:42:22,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250476775] [2023-12-19 15:42:22,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:42:22,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 15:42:22,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:42:22,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 15:42:22,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-19 15:42:22,142 INFO L87 Difference]: Start difference. First operand 313 states and 410 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:42:22,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:42:22,239 INFO L93 Difference]: Finished difference Result 605 states and 790 transitions. [2023-12-19 15:42:22,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 15:42:22,240 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 112 [2023-12-19 15:42:22,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:42:22,241 INFO L225 Difference]: With dead ends: 605 [2023-12-19 15:42:22,241 INFO L226 Difference]: Without dead ends: 426 [2023-12-19 15:42:22,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-19 15:42:22,243 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 56 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 15:42:22,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 527 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 15:42:22,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2023-12-19 15:42:22,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 382. [2023-12-19 15:42:22,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 327 states have (on average 1.253822629969419) internal successors, (410), 329 states have internal predecessors, (410), 44 states have call successors, (44), 10 states have call predecessors, (44), 10 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2023-12-19 15:42:22,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 498 transitions. [2023-12-19 15:42:22,272 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 498 transitions. Word has length 112 [2023-12-19 15:42:22,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:42:22,272 INFO L495 AbstractCegarLoop]: Abstraction has 382 states and 498 transitions. [2023-12-19 15:42:22,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:42:22,273 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 498 transitions. [2023-12-19 15:42:22,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-19 15:42:22,273 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:42:22,273 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:42:22,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-19 15:42:22,273 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:42:22,274 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:42:22,274 INFO L85 PathProgramCache]: Analyzing trace with hash -233497402, now seen corresponding path program 1 times [2023-12-19 15:42:22,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:42:22,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348179249] [2023-12-19 15:42:22,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:22,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:42:22,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:22,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:42:22,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:22,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:42:22,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:22,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:42:22,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:22,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:42:22,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:22,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:42:22,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:22,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:42:22,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:22,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:42:22,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:22,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:42:22,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:22,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:42:22,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:22,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:42:22,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:22,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:42:22,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:22,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:42:22,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:22,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:42:22,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:22,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:42:22,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:22,555 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 15:42:22,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:42:22,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348179249] [2023-12-19 15:42:22,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348179249] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:42:22,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:42:22,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-19 15:42:22,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279982461] [2023-12-19 15:42:22,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:42:22,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-19 15:42:22,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:42:22,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-19 15:42:22,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-19 15:42:22,557 INFO L87 Difference]: Start difference. First operand 382 states and 498 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:42:22,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:42:22,851 INFO L93 Difference]: Finished difference Result 786 states and 1023 transitions. [2023-12-19 15:42:22,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-19 15:42:22,852 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 113 [2023-12-19 15:42:22,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:42:22,853 INFO L225 Difference]: With dead ends: 786 [2023-12-19 15:42:22,853 INFO L226 Difference]: Without dead ends: 544 [2023-12-19 15:42:22,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-19 15:42:22,854 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 256 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 626 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 15:42:22,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 626 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 15:42:22,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2023-12-19 15:42:22,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 414. [2023-12-19 15:42:22,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 356 states have (on average 1.252808988764045) internal successors, (446), 358 states have internal predecessors, (446), 46 states have call successors, (46), 11 states have call predecessors, (46), 11 states have return successors, (46), 44 states have call predecessors, (46), 46 states have call successors, (46) [2023-12-19 15:42:22,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 538 transitions. [2023-12-19 15:42:22,885 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 538 transitions. Word has length 113 [2023-12-19 15:42:22,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:42:22,885 INFO L495 AbstractCegarLoop]: Abstraction has 414 states and 538 transitions. [2023-12-19 15:42:22,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:42:22,886 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 538 transitions. [2023-12-19 15:42:22,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-19 15:42:22,886 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:42:22,886 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:42:22,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-19 15:42:22,887 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:42:22,887 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:42:22,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1821845304, now seen corresponding path program 1 times [2023-12-19 15:42:22,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:42:22,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084739727] [2023-12-19 15:42:22,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:22,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:42:22,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:23,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:42:23,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:23,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:42:23,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:23,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:42:23,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:23,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:42:23,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:23,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:42:23,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:23,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:42:23,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:23,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:42:23,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:23,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:42:23,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:23,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:42:23,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:23,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:42:23,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:23,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:42:23,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:23,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:42:23,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:23,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:42:23,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:23,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:42:23,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:23,130 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 15:42:23,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:42:23,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084739727] [2023-12-19 15:42:23,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084739727] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:42:23,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:42:23,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-19 15:42:23,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911077872] [2023-12-19 15:42:23,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:42:23,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-19 15:42:23,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:42:23,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-19 15:42:23,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-19 15:42:23,131 INFO L87 Difference]: Start difference. First operand 414 states and 538 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:42:23,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:42:23,430 INFO L93 Difference]: Finished difference Result 737 states and 959 transitions. [2023-12-19 15:42:23,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-19 15:42:23,431 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 113 [2023-12-19 15:42:23,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:42:23,432 INFO L225 Difference]: With dead ends: 737 [2023-12-19 15:42:23,432 INFO L226 Difference]: Without dead ends: 495 [2023-12-19 15:42:23,433 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2023-12-19 15:42:23,434 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 330 mSDsluCounter, 501 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 15:42:23,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [330 Valid, 623 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 15:42:23,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2023-12-19 15:42:23,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 414. [2023-12-19 15:42:23,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 356 states have (on average 1.247191011235955) internal successors, (444), 358 states have internal predecessors, (444), 46 states have call successors, (46), 11 states have call predecessors, (46), 11 states have return successors, (46), 44 states have call predecessors, (46), 46 states have call successors, (46) [2023-12-19 15:42:23,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 536 transitions. [2023-12-19 15:42:23,467 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 536 transitions. Word has length 113 [2023-12-19 15:42:23,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:42:23,467 INFO L495 AbstractCegarLoop]: Abstraction has 414 states and 536 transitions. [2023-12-19 15:42:23,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:42:23,468 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 536 transitions. [2023-12-19 15:42:23,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-19 15:42:23,468 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:42:23,468 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:42:23,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-19 15:42:23,469 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:42:23,469 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:42:23,469 INFO L85 PathProgramCache]: Analyzing trace with hash 137079932, now seen corresponding path program 1 times [2023-12-19 15:42:23,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:42:23,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557659733] [2023-12-19 15:42:23,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:23,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:42:23,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:23,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:42:23,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:23,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:42:23,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:23,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:42:23,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:23,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:42:23,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:23,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:42:23,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:23,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:42:23,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:23,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:42:23,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:23,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:42:23,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:23,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:42:23,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:23,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:42:23,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:23,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:42:23,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:23,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:42:23,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:23,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:42:23,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:23,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:42:23,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:23,685 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 15:42:23,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:42:23,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557659733] [2023-12-19 15:42:23,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557659733] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:42:23,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:42:23,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-19 15:42:23,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653524193] [2023-12-19 15:42:23,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:42:23,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-19 15:42:23,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:42:23,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-19 15:42:23,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-19 15:42:23,687 INFO L87 Difference]: Start difference. First operand 414 states and 536 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:42:24,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:42:24,057 INFO L93 Difference]: Finished difference Result 737 states and 957 transitions. [2023-12-19 15:42:24,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-19 15:42:24,057 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 113 [2023-12-19 15:42:24,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:42:24,058 INFO L225 Difference]: With dead ends: 737 [2023-12-19 15:42:24,058 INFO L226 Difference]: Without dead ends: 491 [2023-12-19 15:42:24,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2023-12-19 15:42:24,059 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 205 mSDsluCounter, 558 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 15:42:24,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 715 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 15:42:24,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2023-12-19 15:42:24,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 410. [2023-12-19 15:42:24,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 352 states have (on average 1.2443181818181819) internal successors, (438), 354 states have internal predecessors, (438), 46 states have call successors, (46), 11 states have call predecessors, (46), 11 states have return successors, (46), 44 states have call predecessors, (46), 46 states have call successors, (46) [2023-12-19 15:42:24,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 530 transitions. [2023-12-19 15:42:24,090 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 530 transitions. Word has length 113 [2023-12-19 15:42:24,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:42:24,090 INFO L495 AbstractCegarLoop]: Abstraction has 410 states and 530 transitions. [2023-12-19 15:42:24,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:42:24,090 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 530 transitions. [2023-12-19 15:42:24,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-19 15:42:24,091 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:42:24,091 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:42:24,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-19 15:42:24,091 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:42:24,091 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:42:24,091 INFO L85 PathProgramCache]: Analyzing trace with hash -874037318, now seen corresponding path program 1 times [2023-12-19 15:42:24,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:42:24,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616143075] [2023-12-19 15:42:24,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:24,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:42:24,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:24,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:42:24,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:24,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:42:24,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:24,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:42:24,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:24,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:42:24,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:24,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:42:24,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:24,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:42:24,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:24,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:42:24,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:24,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:42:24,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:24,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:42:24,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:24,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:42:24,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:24,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:42:24,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:24,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:42:24,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:24,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:42:24,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:24,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:42:24,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:24,502 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 15:42:24,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:42:24,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616143075] [2023-12-19 15:42:24,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616143075] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:42:24,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:42:24,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-19 15:42:24,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183499317] [2023-12-19 15:42:24,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:42:24,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-19 15:42:24,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:42:24,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-19 15:42:24,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-12-19 15:42:24,504 INFO L87 Difference]: Start difference. First operand 410 states and 530 transitions. Second operand has 10 states, 10 states have (on average 4.6) internal successors, (46), 10 states have internal predecessors, (46), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:42:25,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:42:25,057 INFO L93 Difference]: Finished difference Result 737 states and 954 transitions. [2023-12-19 15:42:25,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-19 15:42:25,057 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 10 states have internal predecessors, (46), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 113 [2023-12-19 15:42:25,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:42:25,059 INFO L225 Difference]: With dead ends: 737 [2023-12-19 15:42:25,059 INFO L226 Difference]: Without dead ends: 495 [2023-12-19 15:42:25,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=251, Unknown=0, NotChecked=0, Total=342 [2023-12-19 15:42:25,060 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 440 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 440 SdHoareTripleChecker+Valid, 651 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-19 15:42:25,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [440 Valid, 651 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-19 15:42:25,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2023-12-19 15:42:25,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 374. [2023-12-19 15:42:25,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 333 states have (on average 1.2582582582582582) internal successors, (419), 334 states have internal predecessors, (419), 32 states have call successors, (32), 8 states have call predecessors, (32), 8 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) [2023-12-19 15:42:25,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 483 transitions. [2023-12-19 15:42:25,089 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 483 transitions. Word has length 113 [2023-12-19 15:42:25,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:42:25,089 INFO L495 AbstractCegarLoop]: Abstraction has 374 states and 483 transitions. [2023-12-19 15:42:25,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 10 states have internal predecessors, (46), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:42:25,089 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 483 transitions. [2023-12-19 15:42:25,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-19 15:42:25,090 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:42:25,090 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:42:25,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-19 15:42:25,090 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:42:25,091 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:42:25,091 INFO L85 PathProgramCache]: Analyzing trace with hash 832835856, now seen corresponding path program 1 times [2023-12-19 15:42:25,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:42:25,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431522520] [2023-12-19 15:42:25,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:25,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:42:25,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:25,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:42:25,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:25,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:42:25,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:25,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:42:25,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:25,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:42:25,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:25,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:42:25,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:25,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:42:25,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:25,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:42:25,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:25,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:42:25,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:25,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:42:25,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:25,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:42:25,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:25,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:42:25,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:25,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:42:25,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:25,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:42:25,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:25,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:42:25,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:25,305 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 15:42:25,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:42:25,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431522520] [2023-12-19 15:42:25,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431522520] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:42:25,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:42:25,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-19 15:42:25,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973086232] [2023-12-19 15:42:25,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:42:25,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-19 15:42:25,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:42:25,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-19 15:42:25,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-19 15:42:25,307 INFO L87 Difference]: Start difference. First operand 374 states and 483 transitions. Second operand has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 8 states have internal predecessors, (47), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-19 15:42:25,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:42:25,486 INFO L93 Difference]: Finished difference Result 780 states and 1000 transitions. [2023-12-19 15:42:25,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 15:42:25,488 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 8 states have internal predecessors, (47), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 114 [2023-12-19 15:42:25,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:42:25,490 INFO L225 Difference]: With dead ends: 780 [2023-12-19 15:42:25,490 INFO L226 Difference]: Without dead ends: 407 [2023-12-19 15:42:25,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2023-12-19 15:42:25,491 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 354 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 15:42:25,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [354 Valid, 450 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 15:42:25,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2023-12-19 15:42:25,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 374. [2023-12-19 15:42:25,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 333 states have (on average 1.2522522522522523) internal successors, (417), 334 states have internal predecessors, (417), 32 states have call successors, (32), 8 states have call predecessors, (32), 8 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) [2023-12-19 15:42:25,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 481 transitions. [2023-12-19 15:42:25,519 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 481 transitions. Word has length 114 [2023-12-19 15:42:25,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:42:25,519 INFO L495 AbstractCegarLoop]: Abstraction has 374 states and 481 transitions. [2023-12-19 15:42:25,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 8 states have internal predecessors, (47), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-19 15:42:25,519 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 481 transitions. [2023-12-19 15:42:25,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-19 15:42:25,520 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:42:25,520 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:42:25,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-19 15:42:25,520 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:42:25,521 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:42:25,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1533900434, now seen corresponding path program 1 times [2023-12-19 15:42:25,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:42:25,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822157748] [2023-12-19 15:42:25,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:25,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:42:25,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:25,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:42:25,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:25,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:42:25,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:25,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:42:25,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:25,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:42:25,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:25,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:42:25,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:25,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:42:25,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:25,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:42:25,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:25,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:42:25,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:25,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:42:25,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:25,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:42:25,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:25,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:42:25,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:25,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:42:25,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:25,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:42:25,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:25,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:42:25,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:25,818 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 15:42:25,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:42:25,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822157748] [2023-12-19 15:42:25,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822157748] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:42:25,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:42:25,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-19 15:42:25,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556149313] [2023-12-19 15:42:25,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:42:25,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 15:42:25,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:42:25,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 15:42:25,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-12-19 15:42:25,820 INFO L87 Difference]: Start difference. First operand 374 states and 481 transitions. Second operand has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 9 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:42:26,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:42:26,109 INFO L93 Difference]: Finished difference Result 841 states and 1073 transitions. [2023-12-19 15:42:26,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-19 15:42:26,112 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 9 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 114 [2023-12-19 15:42:26,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:42:26,114 INFO L225 Difference]: With dead ends: 841 [2023-12-19 15:42:26,114 INFO L226 Difference]: Without dead ends: 468 [2023-12-19 15:42:26,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2023-12-19 15:42:26,115 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 271 mSDsluCounter, 776 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 937 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 15:42:26,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 937 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 15:42:26,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2023-12-19 15:42:26,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 390. [2023-12-19 15:42:26,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 349 states have (on average 1.2435530085959885) internal successors, (434), 350 states have internal predecessors, (434), 32 states have call successors, (32), 8 states have call predecessors, (32), 8 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) [2023-12-19 15:42:26,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 498 transitions. [2023-12-19 15:42:26,142 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 498 transitions. Word has length 114 [2023-12-19 15:42:26,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:42:26,143 INFO L495 AbstractCegarLoop]: Abstraction has 390 states and 498 transitions. [2023-12-19 15:42:26,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 9 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:42:26,143 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 498 transitions. [2023-12-19 15:42:26,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-19 15:42:26,143 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:42:26,143 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:42:26,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-19 15:42:26,144 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:42:26,144 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:42:26,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1140873424, now seen corresponding path program 1 times [2023-12-19 15:42:26,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:42:26,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509229599] [2023-12-19 15:42:26,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:26,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:42:26,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:26,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:42:26,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:26,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:42:26,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:26,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:42:26,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:26,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:42:26,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:26,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:42:26,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:26,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:42:26,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:26,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:42:26,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:26,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:42:26,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:26,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:42:26,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:26,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:42:26,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:26,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:42:26,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:26,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:42:26,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:26,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:42:26,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:26,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:42:26,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:26,311 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 15:42:26,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:42:26,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509229599] [2023-12-19 15:42:26,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509229599] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:42:26,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:42:26,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 15:42:26,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125751447] [2023-12-19 15:42:26,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:42:26,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 15:42:26,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:42:26,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 15:42:26,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-19 15:42:26,312 INFO L87 Difference]: Start difference. First operand 390 states and 498 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:42:26,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:42:26,408 INFO L93 Difference]: Finished difference Result 951 states and 1204 transitions. [2023-12-19 15:42:26,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 15:42:26,409 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 114 [2023-12-19 15:42:26,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:42:26,410 INFO L225 Difference]: With dead ends: 951 [2023-12-19 15:42:26,410 INFO L226 Difference]: Without dead ends: 562 [2023-12-19 15:42:26,411 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-19 15:42:26,411 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 54 mSDsluCounter, 468 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 15:42:26,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 604 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 15:42:26,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2023-12-19 15:42:26,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 473. [2023-12-19 15:42:26,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 432 states have (on average 1.2546296296296295) internal successors, (542), 433 states have internal predecessors, (542), 32 states have call successors, (32), 8 states have call predecessors, (32), 8 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) [2023-12-19 15:42:26,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 606 transitions. [2023-12-19 15:42:26,439 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 606 transitions. Word has length 114 [2023-12-19 15:42:26,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:42:26,439 INFO L495 AbstractCegarLoop]: Abstraction has 473 states and 606 transitions. [2023-12-19 15:42:26,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:42:26,440 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 606 transitions. [2023-12-19 15:42:26,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-19 15:42:26,440 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:42:26,440 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:42:26,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-12-19 15:42:26,441 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:42:26,441 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:42:26,441 INFO L85 PathProgramCache]: Analyzing trace with hash 1752755152, now seen corresponding path program 1 times [2023-12-19 15:42:26,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:42:26,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261218162] [2023-12-19 15:42:26,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:26,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:42:26,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:26,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:42:26,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:26,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:42:26,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:26,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:42:26,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:26,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:42:26,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:26,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:42:26,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:26,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:42:26,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:26,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:42:26,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:26,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:42:26,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:26,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:42:26,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:26,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:42:26,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:26,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:42:26,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:26,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:42:26,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:26,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:42:26,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:26,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:42:26,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:26,661 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 15:42:26,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:42:26,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261218162] [2023-12-19 15:42:26,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261218162] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:42:26,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:42:26,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 15:42:26,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349239724] [2023-12-19 15:42:26,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:42:26,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 15:42:26,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:42:26,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 15:42:26,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-19 15:42:26,663 INFO L87 Difference]: Start difference. First operand 473 states and 606 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:42:26,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:42:26,875 INFO L93 Difference]: Finished difference Result 1159 states and 1473 transitions. [2023-12-19 15:42:26,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 15:42:26,876 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 114 [2023-12-19 15:42:26,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:42:26,877 INFO L225 Difference]: With dead ends: 1159 [2023-12-19 15:42:26,877 INFO L226 Difference]: Without dead ends: 687 [2023-12-19 15:42:26,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2023-12-19 15:42:26,878 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 164 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 15:42:26,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 552 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 15:42:26,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 687 states. [2023-12-19 15:42:26,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 687 to 547. [2023-12-19 15:42:26,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 488 states have (on average 1.2377049180327868) internal successors, (604), 489 states have internal predecessors, (604), 46 states have call successors, (46), 12 states have call predecessors, (46), 12 states have return successors, (46), 45 states have call predecessors, (46), 46 states have call successors, (46) [2023-12-19 15:42:26,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 696 transitions. [2023-12-19 15:42:26,918 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 696 transitions. Word has length 114 [2023-12-19 15:42:26,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:42:26,918 INFO L495 AbstractCegarLoop]: Abstraction has 547 states and 696 transitions. [2023-12-19 15:42:26,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:42:26,919 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 696 transitions. [2023-12-19 15:42:26,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-19 15:42:26,919 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:42:26,919 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:42:26,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-12-19 15:42:26,919 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:42:26,920 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:42:26,920 INFO L85 PathProgramCache]: Analyzing trace with hash 801471944, now seen corresponding path program 1 times [2023-12-19 15:42:26,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:42:26,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991290730] [2023-12-19 15:42:26,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:26,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:42:26,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:27,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:42:27,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:27,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:42:27,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:27,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:42:27,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:27,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:42:27,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:27,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:42:27,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:27,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:42:27,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:27,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:42:27,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:27,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:42:27,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:27,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:42:27,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:27,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:42:27,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:27,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:42:27,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:27,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:42:27,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:27,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:42:27,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:27,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:42:27,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:27,388 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 15:42:27,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:42:27,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991290730] [2023-12-19 15:42:27,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991290730] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:42:27,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:42:27,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-19 15:42:27,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589845095] [2023-12-19 15:42:27,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:42:27,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-19 15:42:27,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:42:27,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-19 15:42:27,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-19 15:42:27,390 INFO L87 Difference]: Start difference. First operand 547 states and 696 transitions. Second operand has 11 states, 9 states have (on average 5.222222222222222) internal successors, (47), 10 states have internal predecessors, (47), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2023-12-19 15:42:27,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:42:27,749 INFO L93 Difference]: Finished difference Result 934 states and 1187 transitions. [2023-12-19 15:42:27,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 15:42:27,750 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 5.222222222222222) internal successors, (47), 10 states have internal predecessors, (47), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) Word has length 114 [2023-12-19 15:42:27,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:42:27,753 INFO L225 Difference]: With dead ends: 934 [2023-12-19 15:42:27,753 INFO L226 Difference]: Without dead ends: 628 [2023-12-19 15:42:27,754 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-19 15:42:27,754 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 373 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 15:42:27,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [373 Valid, 495 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 15:42:27,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2023-12-19 15:42:27,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 606. [2023-12-19 15:42:27,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 606 states, 539 states have (on average 1.2207792207792207) internal successors, (658), 542 states have internal predecessors, (658), 50 states have call successors, (50), 16 states have call predecessors, (50), 16 states have return successors, (50), 47 states have call predecessors, (50), 50 states have call successors, (50) [2023-12-19 15:42:27,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 606 states to 606 states and 758 transitions. [2023-12-19 15:42:27,807 INFO L78 Accepts]: Start accepts. Automaton has 606 states and 758 transitions. Word has length 114 [2023-12-19 15:42:27,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:42:27,807 INFO L495 AbstractCegarLoop]: Abstraction has 606 states and 758 transitions. [2023-12-19 15:42:27,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 5.222222222222222) internal successors, (47), 10 states have internal predecessors, (47), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2023-12-19 15:42:27,807 INFO L276 IsEmpty]: Start isEmpty. Operand 606 states and 758 transitions. [2023-12-19 15:42:27,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-19 15:42:27,808 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:42:27,808 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:42:27,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-12-19 15:42:27,808 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:42:27,808 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:42:27,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1704953576, now seen corresponding path program 1 times [2023-12-19 15:42:27,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:42:27,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816879510] [2023-12-19 15:42:27,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:27,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:42:27,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:28,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:42:28,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:28,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:42:28,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:28,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:42:28,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:28,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:42:28,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:28,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:42:28,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:28,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:42:28,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:28,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:42:28,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:28,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:42:28,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:28,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:42:28,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:28,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:42:28,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:28,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:42:28,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:28,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:42:28,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:28,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:42:28,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:28,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:42:28,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:28,396 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 15:42:28,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:42:28,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816879510] [2023-12-19 15:42:28,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816879510] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:42:28,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:42:28,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-19 15:42:28,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503403271] [2023-12-19 15:42:28,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:42:28,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-19 15:42:28,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:42:28,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-19 15:42:28,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-12-19 15:42:28,399 INFO L87 Difference]: Start difference. First operand 606 states and 758 transitions. Second operand has 14 states, 12 states have (on average 4.0) internal successors, (48), 13 states have internal predecessors, (48), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2023-12-19 15:42:29,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:42:29,273 INFO L93 Difference]: Finished difference Result 1059 states and 1328 transitions. [2023-12-19 15:42:29,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-19 15:42:29,273 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 4.0) internal successors, (48), 13 states have internal predecessors, (48), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) Word has length 115 [2023-12-19 15:42:29,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:42:29,278 INFO L225 Difference]: With dead ends: 1059 [2023-12-19 15:42:29,278 INFO L226 Difference]: Without dead ends: 702 [2023-12-19 15:42:29,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2023-12-19 15:42:29,279 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 442 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 668 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 442 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-19 15:42:29,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [442 Valid, 737 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 668 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-19 15:42:29,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2023-12-19 15:42:29,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 563. [2023-12-19 15:42:29,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 500 states have (on average 1.22) internal successors, (610), 501 states have internal predecessors, (610), 46 states have call successors, (46), 16 states have call predecessors, (46), 16 states have return successors, (46), 45 states have call predecessors, (46), 46 states have call successors, (46) [2023-12-19 15:42:29,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 702 transitions. [2023-12-19 15:42:29,323 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 702 transitions. Word has length 115 [2023-12-19 15:42:29,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:42:29,323 INFO L495 AbstractCegarLoop]: Abstraction has 563 states and 702 transitions. [2023-12-19 15:42:29,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 4.0) internal successors, (48), 13 states have internal predecessors, (48), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2023-12-19 15:42:29,323 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 702 transitions. [2023-12-19 15:42:29,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-19 15:42:29,324 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:42:29,324 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:42:29,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-12-19 15:42:29,324 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:42:29,324 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:42:29,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1812496647, now seen corresponding path program 1 times [2023-12-19 15:42:29,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:42:29,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280532409] [2023-12-19 15:42:29,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:29,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:42:29,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:30,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:42:30,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:30,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:42:30,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:30,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:42:30,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:30,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:42:30,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:30,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:42:30,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:30,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:42:30,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:30,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:42:30,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:30,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:42:30,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:30,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:42:30,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:30,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:42:30,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:30,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:42:30,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:30,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:42:30,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:30,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:42:30,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:30,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:42:30,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:30,693 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 15:42:30,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:42:30,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280532409] [2023-12-19 15:42:30,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280532409] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:42:30,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:42:30,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2023-12-19 15:42:30,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923287843] [2023-12-19 15:42:30,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:42:30,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-12-19 15:42:30,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:42:30,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-12-19 15:42:30,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=449, Unknown=0, NotChecked=0, Total=506 [2023-12-19 15:42:30,694 INFO L87 Difference]: Start difference. First operand 563 states and 702 transitions. Second operand has 23 states, 21 states have (on average 2.3333333333333335) internal successors, (49), 22 states have internal predecessors, (49), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2023-12-19 15:42:34,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:42:34,097 INFO L93 Difference]: Finished difference Result 1226 states and 1538 transitions. [2023-12-19 15:42:34,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-12-19 15:42:34,097 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 21 states have (on average 2.3333333333333335) internal successors, (49), 22 states have internal predecessors, (49), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) Word has length 116 [2023-12-19 15:42:34,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:42:34,100 INFO L225 Difference]: With dead ends: 1226 [2023-12-19 15:42:34,100 INFO L226 Difference]: Without dead ends: 912 [2023-12-19 15:42:34,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 518 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=527, Invalid=2443, Unknown=0, NotChecked=0, Total=2970 [2023-12-19 15:42:34,102 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 669 mSDsluCounter, 1807 mSDsCounter, 0 mSdLazyCounter, 1584 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 669 SdHoareTripleChecker+Valid, 1964 SdHoareTripleChecker+Invalid, 1651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-19 15:42:34,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [669 Valid, 1964 Invalid, 1651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1584 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-19 15:42:34,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 912 states. [2023-12-19 15:42:34,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 912 to 652. [2023-12-19 15:42:34,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 652 states, 578 states have (on average 1.2197231833910034) internal successors, (705), 580 states have internal predecessors, (705), 54 states have call successors, (54), 19 states have call predecessors, (54), 19 states have return successors, (54), 52 states have call predecessors, (54), 54 states have call successors, (54) [2023-12-19 15:42:34,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 813 transitions. [2023-12-19 15:42:34,173 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 813 transitions. Word has length 116 [2023-12-19 15:42:34,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:42:34,173 INFO L495 AbstractCegarLoop]: Abstraction has 652 states and 813 transitions. [2023-12-19 15:42:34,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 21 states have (on average 2.3333333333333335) internal successors, (49), 22 states have internal predecessors, (49), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2023-12-19 15:42:34,174 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 813 transitions. [2023-12-19 15:42:34,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-19 15:42:34,174 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:42:34,174 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:42:34,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-12-19 15:42:34,174 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:42:34,175 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:42:34,175 INFO L85 PathProgramCache]: Analyzing trace with hash 860834691, now seen corresponding path program 1 times [2023-12-19 15:42:34,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:42:34,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123683023] [2023-12-19 15:42:34,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:34,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:42:34,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:34,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:42:34,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:34,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:42:34,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:34,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:42:34,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:34,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:42:34,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:34,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:42:34,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:34,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:42:34,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:34,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:42:34,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:34,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:42:34,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:34,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:42:34,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:34,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:42:34,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:34,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:42:34,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:34,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:42:34,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:34,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:42:34,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:34,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:42:34,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:34,552 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 15:42:34,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:42:34,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123683023] [2023-12-19 15:42:34,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123683023] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:42:34,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:42:34,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-19 15:42:34,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746138158] [2023-12-19 15:42:34,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:42:34,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-19 15:42:34,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:42:34,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-19 15:42:34,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2023-12-19 15:42:34,553 INFO L87 Difference]: Start difference. First operand 652 states and 813 transitions. Second operand has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 12 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:42:34,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:42:34,968 INFO L93 Difference]: Finished difference Result 1328 states and 1661 transitions. [2023-12-19 15:42:34,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-19 15:42:34,969 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 12 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 116 [2023-12-19 15:42:34,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:42:34,971 INFO L225 Difference]: With dead ends: 1328 [2023-12-19 15:42:34,971 INFO L226 Difference]: Without dead ends: 944 [2023-12-19 15:42:34,972 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=115, Invalid=437, Unknown=0, NotChecked=0, Total=552 [2023-12-19 15:42:34,972 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 272 mSDsluCounter, 1306 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 1466 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 15:42:34,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 1466 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 15:42:34,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 944 states. [2023-12-19 15:42:35,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 944 to 755. [2023-12-19 15:42:35,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 755 states, 681 states have (on average 1.2276064610866373) internal successors, (836), 683 states have internal predecessors, (836), 54 states have call successors, (54), 19 states have call predecessors, (54), 19 states have return successors, (54), 52 states have call predecessors, (54), 54 states have call successors, (54) [2023-12-19 15:42:35,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 755 states to 755 states and 944 transitions. [2023-12-19 15:42:35,028 INFO L78 Accepts]: Start accepts. Automaton has 755 states and 944 transitions. Word has length 116 [2023-12-19 15:42:35,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:42:35,028 INFO L495 AbstractCegarLoop]: Abstraction has 755 states and 944 transitions. [2023-12-19 15:42:35,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 12 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:42:35,028 INFO L276 IsEmpty]: Start isEmpty. Operand 755 states and 944 transitions. [2023-12-19 15:42:35,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-19 15:42:35,029 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:42:35,029 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:42:35,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-12-19 15:42:35,029 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:42:35,030 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:42:35,030 INFO L85 PathProgramCache]: Analyzing trace with hash 218752064, now seen corresponding path program 1 times [2023-12-19 15:42:35,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:42:35,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142121283] [2023-12-19 15:42:35,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:35,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:42:35,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:35,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:42:35,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:35,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:42:35,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:35,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:42:35,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:35,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:42:35,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:35,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:42:35,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:35,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:42:35,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:35,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:42:35,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:35,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:42:35,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:35,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:42:35,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:35,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:42:35,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:35,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:42:35,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:35,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:42:35,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:35,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:42:35,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:35,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:42:35,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:35,567 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 15:42:35,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:42:35,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142121283] [2023-12-19 15:42:35,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142121283] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:42:35,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:42:35,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-19 15:42:35,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918069377] [2023-12-19 15:42:35,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:42:35,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-19 15:42:35,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:42:35,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-19 15:42:35,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2023-12-19 15:42:35,569 INFO L87 Difference]: Start difference. First operand 755 states and 944 transitions. Second operand has 13 states, 12 states have (on average 4.166666666666667) internal successors, (50), 13 states have internal predecessors, (50), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-19 15:42:36,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:42:36,642 INFO L93 Difference]: Finished difference Result 1668 states and 2087 transitions. [2023-12-19 15:42:36,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-19 15:42:36,643 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.166666666666667) internal successors, (50), 13 states have internal predecessors, (50), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 117 [2023-12-19 15:42:36,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:42:36,646 INFO L225 Difference]: With dead ends: 1668 [2023-12-19 15:42:36,646 INFO L226 Difference]: Without dead ends: 1213 [2023-12-19 15:42:36,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=238, Invalid=692, Unknown=0, NotChecked=0, Total=930 [2023-12-19 15:42:36,647 INFO L413 NwaCegarLoop]: 218 mSDtfsCounter, 453 mSDsluCounter, 1340 mSDsCounter, 0 mSdLazyCounter, 971 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 453 SdHoareTripleChecker+Valid, 1558 SdHoareTripleChecker+Invalid, 1040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 971 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-19 15:42:36,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [453 Valid, 1558 Invalid, 1040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 971 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-19 15:42:36,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1213 states. [2023-12-19 15:42:36,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1213 to 847. [2023-12-19 15:42:36,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 847 states, 773 states have (on average 1.2276843467011642) internal successors, (949), 775 states have internal predecessors, (949), 54 states have call successors, (54), 19 states have call predecessors, (54), 19 states have return successors, (54), 52 states have call predecessors, (54), 54 states have call successors, (54) [2023-12-19 15:42:36,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 847 states to 847 states and 1057 transitions. [2023-12-19 15:42:36,707 INFO L78 Accepts]: Start accepts. Automaton has 847 states and 1057 transitions. Word has length 117 [2023-12-19 15:42:36,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:42:36,707 INFO L495 AbstractCegarLoop]: Abstraction has 847 states and 1057 transitions. [2023-12-19 15:42:36,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.166666666666667) internal successors, (50), 13 states have internal predecessors, (50), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-19 15:42:36,708 INFO L276 IsEmpty]: Start isEmpty. Operand 847 states and 1057 transitions. [2023-12-19 15:42:36,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-19 15:42:36,708 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:42:36,708 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:42:36,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-12-19 15:42:36,709 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:42:36,709 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:42:36,709 INFO L85 PathProgramCache]: Analyzing trace with hash 526789632, now seen corresponding path program 1 times [2023-12-19 15:42:36,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:42:36,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912174424] [2023-12-19 15:42:36,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:36,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:42:36,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:37,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:42:37,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:37,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:42:37,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:37,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:42:37,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:37,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:42:37,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:37,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:42:37,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:37,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:42:37,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:37,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:42:37,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:37,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:42:37,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:37,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:42:37,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:37,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:42:37,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:37,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:42:37,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:37,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:42:37,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:37,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:42:37,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:37,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:42:37,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:37,067 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 15:42:37,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:42:37,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912174424] [2023-12-19 15:42:37,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912174424] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:42:37,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:42:37,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-19 15:42:37,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081366480] [2023-12-19 15:42:37,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:42:37,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 15:42:37,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:42:37,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 15:42:37,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-12-19 15:42:37,069 INFO L87 Difference]: Start difference. First operand 847 states and 1057 transitions. Second operand has 9 states, 8 states have (on average 6.25) internal successors, (50), 9 states have internal predecessors, (50), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-19 15:42:37,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:42:37,382 INFO L93 Difference]: Finished difference Result 1486 states and 1852 transitions. [2023-12-19 15:42:37,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-19 15:42:37,383 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.25) internal successors, (50), 9 states have internal predecessors, (50), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 117 [2023-12-19 15:42:37,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:42:37,385 INFO L225 Difference]: With dead ends: 1486 [2023-12-19 15:42:37,385 INFO L226 Difference]: Without dead ends: 964 [2023-12-19 15:42:37,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2023-12-19 15:42:37,387 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 295 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 15:42:37,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 589 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 15:42:37,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 964 states. [2023-12-19 15:42:37,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 964 to 877. [2023-12-19 15:42:37,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 877 states, 797 states have (on average 1.2170639899623588) internal successors, (970), 800 states have internal predecessors, (970), 58 states have call successors, (58), 21 states have call predecessors, (58), 21 states have return successors, (58), 55 states have call predecessors, (58), 58 states have call successors, (58) [2023-12-19 15:42:37,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 877 states to 877 states and 1086 transitions. [2023-12-19 15:42:37,474 INFO L78 Accepts]: Start accepts. Automaton has 877 states and 1086 transitions. Word has length 117 [2023-12-19 15:42:37,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:42:37,475 INFO L495 AbstractCegarLoop]: Abstraction has 877 states and 1086 transitions. [2023-12-19 15:42:37,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.25) internal successors, (50), 9 states have internal predecessors, (50), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-19 15:42:37,475 INFO L276 IsEmpty]: Start isEmpty. Operand 877 states and 1086 transitions. [2023-12-19 15:42:37,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-19 15:42:37,476 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:42:37,476 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:42:37,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-12-19 15:42:37,476 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:42:37,476 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:42:37,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1123155923, now seen corresponding path program 1 times [2023-12-19 15:42:37,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:42:37,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382211574] [2023-12-19 15:42:37,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:37,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:42:37,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:37,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:42:37,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:37,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:42:37,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:37,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:42:37,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:37,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:42:37,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:37,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:42:37,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:37,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:42:37,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:37,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:42:37,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:37,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:42:37,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:37,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:42:37,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:37,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:42:37,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:37,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:42:37,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:37,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:42:37,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:37,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:42:37,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:37,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:42:37,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:37,817 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 15:42:37,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:42:37,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382211574] [2023-12-19 15:42:37,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382211574] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:42:37,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:42:37,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-19 15:42:37,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8005494] [2023-12-19 15:42:37,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:42:37,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-19 15:42:37,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:42:37,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-19 15:42:37,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-12-19 15:42:37,819 INFO L87 Difference]: Start difference. First operand 877 states and 1086 transitions. Second operand has 10 states, 9 states have (on average 5.666666666666667) internal successors, (51), 10 states have internal predecessors, (51), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-19 15:42:38,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:42:38,236 INFO L93 Difference]: Finished difference Result 1905 states and 2359 transitions. [2023-12-19 15:42:38,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-19 15:42:38,236 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.666666666666667) internal successors, (51), 10 states have internal predecessors, (51), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 118 [2023-12-19 15:42:38,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:42:38,240 INFO L225 Difference]: With dead ends: 1905 [2023-12-19 15:42:38,240 INFO L226 Difference]: Without dead ends: 1353 [2023-12-19 15:42:38,241 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2023-12-19 15:42:38,241 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 316 mSDsluCounter, 629 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 761 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 15:42:38,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [316 Valid, 761 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 15:42:38,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1353 states. [2023-12-19 15:42:38,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1353 to 1005. [2023-12-19 15:42:38,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 925 states have (on average 1.228108108108108) internal successors, (1136), 928 states have internal predecessors, (1136), 58 states have call successors, (58), 21 states have call predecessors, (58), 21 states have return successors, (58), 55 states have call predecessors, (58), 58 states have call successors, (58) [2023-12-19 15:42:38,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1252 transitions. [2023-12-19 15:42:38,318 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1252 transitions. Word has length 118 [2023-12-19 15:42:38,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:42:38,318 INFO L495 AbstractCegarLoop]: Abstraction has 1005 states and 1252 transitions. [2023-12-19 15:42:38,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.666666666666667) internal successors, (51), 10 states have internal predecessors, (51), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-19 15:42:38,318 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1252 transitions. [2023-12-19 15:42:38,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-19 15:42:38,319 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:42:38,319 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:42:38,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-12-19 15:42:38,319 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:42:38,319 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:42:38,319 INFO L85 PathProgramCache]: Analyzing trace with hash -2144224277, now seen corresponding path program 1 times [2023-12-19 15:42:38,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:42:38,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623609456] [2023-12-19 15:42:38,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:38,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:42:38,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:38,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:42:38,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:38,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:42:38,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:38,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:42:38,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:38,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:42:38,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:38,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:42:38,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:38,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:42:38,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:38,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:42:38,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:38,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:42:38,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:38,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:42:38,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:38,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:42:38,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:38,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:42:38,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:38,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:42:38,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:38,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:42:38,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:38,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:42:38,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:38,999 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 15:42:38,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:42:38,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623609456] [2023-12-19 15:42:38,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623609456] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:42:38,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:42:39,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-12-19 15:42:39,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055016174] [2023-12-19 15:42:39,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:42:39,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-19 15:42:39,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:42:39,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-19 15:42:39,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2023-12-19 15:42:39,001 INFO L87 Difference]: Start difference. First operand 1005 states and 1252 transitions. Second operand has 17 states, 15 states have (on average 3.4) internal successors, (51), 16 states have internal predecessors, (51), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2023-12-19 15:42:41,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:42:41,057 INFO L93 Difference]: Finished difference Result 1964 states and 2442 transitions. [2023-12-19 15:42:41,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-19 15:42:41,057 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 3.4) internal successors, (51), 16 states have internal predecessors, (51), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) Word has length 118 [2023-12-19 15:42:41,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:42:41,060 INFO L225 Difference]: With dead ends: 1964 [2023-12-19 15:42:41,060 INFO L226 Difference]: Without dead ends: 1346 [2023-12-19 15:42:41,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=233, Invalid=759, Unknown=0, NotChecked=0, Total=992 [2023-12-19 15:42:41,062 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 614 mSDsluCounter, 1089 mSDsCounter, 0 mSdLazyCounter, 928 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 614 SdHoareTripleChecker+Valid, 1254 SdHoareTripleChecker+Invalid, 1106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 928 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-19 15:42:41,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [614 Valid, 1254 Invalid, 1106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 928 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-19 15:42:41,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1346 states. [2023-12-19 15:42:41,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1346 to 1013. [2023-12-19 15:42:41,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1013 states, 932 states have (on average 1.23068669527897) internal successors, (1147), 935 states have internal predecessors, (1147), 58 states have call successors, (58), 22 states have call predecessors, (58), 22 states have return successors, (58), 55 states have call predecessors, (58), 58 states have call successors, (58) [2023-12-19 15:42:41,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1013 states to 1013 states and 1263 transitions. [2023-12-19 15:42:41,152 INFO L78 Accepts]: Start accepts. Automaton has 1013 states and 1263 transitions. Word has length 118 [2023-12-19 15:42:41,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:42:41,152 INFO L495 AbstractCegarLoop]: Abstraction has 1013 states and 1263 transitions. [2023-12-19 15:42:41,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 3.4) internal successors, (51), 16 states have internal predecessors, (51), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2023-12-19 15:42:41,152 INFO L276 IsEmpty]: Start isEmpty. Operand 1013 states and 1263 transitions. [2023-12-19 15:42:41,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-19 15:42:41,153 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:42:41,153 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:42:41,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-12-19 15:42:41,153 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:42:41,153 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:42:41,153 INFO L85 PathProgramCache]: Analyzing trace with hash -1034100883, now seen corresponding path program 1 times [2023-12-19 15:42:41,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:42:41,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100147726] [2023-12-19 15:42:41,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:41,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:42:41,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:41,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:42:41,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:41,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:42:41,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:41,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:42:41,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:41,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:42:41,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:41,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:42:41,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:41,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:42:41,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:41,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:42:41,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:41,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:42:41,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:41,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:42:41,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:41,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:42:41,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:41,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:42:41,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:41,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:42:41,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:41,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:42:41,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:41,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:42:41,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:41,645 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 15:42:41,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:42:41,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100147726] [2023-12-19 15:42:41,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100147726] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:42:41,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:42:41,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-19 15:42:41,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692126826] [2023-12-19 15:42:41,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:42:41,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-19 15:42:41,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:42:41,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-19 15:42:41,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2023-12-19 15:42:41,647 INFO L87 Difference]: Start difference. First operand 1013 states and 1263 transitions. Second operand has 13 states, 11 states have (on average 4.636363636363637) internal successors, (51), 12 states have internal predecessors, (51), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2023-12-19 15:42:42,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:42:42,258 INFO L93 Difference]: Finished difference Result 2131 states and 2655 transitions. [2023-12-19 15:42:42,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-19 15:42:42,258 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 4.636363636363637) internal successors, (51), 12 states have internal predecessors, (51), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) Word has length 118 [2023-12-19 15:42:42,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:42:42,261 INFO L225 Difference]: With dead ends: 2131 [2023-12-19 15:42:42,261 INFO L226 Difference]: Without dead ends: 1513 [2023-12-19 15:42:42,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=354, Unknown=0, NotChecked=0, Total=462 [2023-12-19 15:42:42,263 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 344 mSDsluCounter, 934 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 1123 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 15:42:42,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 1123 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 500 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 15:42:42,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2023-12-19 15:42:42,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1144. [2023-12-19 15:42:42,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1144 states, 1063 states have (on average 1.2380056444026342) internal successors, (1316), 1066 states have internal predecessors, (1316), 58 states have call successors, (58), 22 states have call predecessors, (58), 22 states have return successors, (58), 55 states have call predecessors, (58), 58 states have call successors, (58) [2023-12-19 15:42:42,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 1432 transitions. [2023-12-19 15:42:42,346 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 1432 transitions. Word has length 118 [2023-12-19 15:42:42,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:42:42,347 INFO L495 AbstractCegarLoop]: Abstraction has 1144 states and 1432 transitions. [2023-12-19 15:42:42,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 4.636363636363637) internal successors, (51), 12 states have internal predecessors, (51), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2023-12-19 15:42:42,347 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 1432 transitions. [2023-12-19 15:42:42,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-19 15:42:42,348 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:42:42,348 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:42:42,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-12-19 15:42:42,348 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:42:42,348 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:42:42,348 INFO L85 PathProgramCache]: Analyzing trace with hash -2045218133, now seen corresponding path program 1 times [2023-12-19 15:42:42,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:42:42,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388966100] [2023-12-19 15:42:42,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:42,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:42:42,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:42,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:42:42,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:42,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:42:42,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:42,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:42:42,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:42,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:42:42,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:42,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:42:42,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:42,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:42:42,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:42,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:42:42,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:42,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:42:42,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:42,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:42:42,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:42,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:42:42,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:42,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:42:42,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:42,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:42:42,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:42,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:42:42,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:42,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:42:42,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:42,821 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 15:42:42,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:42:42,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388966100] [2023-12-19 15:42:42,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388966100] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:42:42,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:42:42,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-19 15:42:42,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293419831] [2023-12-19 15:42:42,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:42:42,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-19 15:42:42,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:42:42,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-19 15:42:42,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2023-12-19 15:42:42,822 INFO L87 Difference]: Start difference. First operand 1144 states and 1432 transitions. Second operand has 14 states, 13 states have (on average 3.923076923076923) internal successors, (51), 14 states have internal predecessors, (51), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-19 15:42:43,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:42:43,789 INFO L93 Difference]: Finished difference Result 2541 states and 3164 transitions. [2023-12-19 15:42:43,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-19 15:42:43,789 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.923076923076923) internal successors, (51), 14 states have internal predecessors, (51), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 118 [2023-12-19 15:42:43,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:42:43,793 INFO L225 Difference]: With dead ends: 2541 [2023-12-19 15:42:43,794 INFO L226 Difference]: Without dead ends: 1856 [2023-12-19 15:42:43,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=176, Invalid=526, Unknown=0, NotChecked=0, Total=702 [2023-12-19 15:42:43,795 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 660 mSDsluCounter, 1114 mSDsCounter, 0 mSdLazyCounter, 841 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 660 SdHoareTripleChecker+Valid, 1270 SdHoareTripleChecker+Invalid, 982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 841 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-19 15:42:43,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [660 Valid, 1270 Invalid, 982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 841 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-19 15:42:43,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1856 states. [2023-12-19 15:42:43,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1856 to 1148. [2023-12-19 15:42:43,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1148 states, 1067 states have (on average 1.2333645735707592) internal successors, (1316), 1070 states have internal predecessors, (1316), 58 states have call successors, (58), 22 states have call predecessors, (58), 22 states have return successors, (58), 55 states have call predecessors, (58), 58 states have call successors, (58) [2023-12-19 15:42:43,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1148 states to 1148 states and 1432 transitions. [2023-12-19 15:42:43,904 INFO L78 Accepts]: Start accepts. Automaton has 1148 states and 1432 transitions. Word has length 118 [2023-12-19 15:42:43,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:42:43,904 INFO L495 AbstractCegarLoop]: Abstraction has 1148 states and 1432 transitions. [2023-12-19 15:42:43,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.923076923076923) internal successors, (51), 14 states have internal predecessors, (51), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-19 15:42:43,904 INFO L276 IsEmpty]: Start isEmpty. Operand 1148 states and 1432 transitions. [2023-12-19 15:42:43,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-19 15:42:43,905 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:42:43,905 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:42:43,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-12-19 15:42:43,905 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:42:43,906 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:42:43,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1100523669, now seen corresponding path program 1 times [2023-12-19 15:42:43,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:42:43,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507463224] [2023-12-19 15:42:43,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:43,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:42:43,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:44,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:42:44,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:44,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:42:44,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:44,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:42:44,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:44,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:42:44,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:44,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:42:44,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:44,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:42:44,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:44,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:42:44,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:44,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:42:44,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:44,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:42:44,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:44,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:42:44,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:44,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:42:44,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:44,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:42:44,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:44,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:42:44,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:44,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:42:44,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:44,425 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 15:42:44,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:42:44,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507463224] [2023-12-19 15:42:44,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507463224] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:42:44,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:42:44,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-12-19 15:42:44,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574310558] [2023-12-19 15:42:44,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:42:44,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-19 15:42:44,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:42:44,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-19 15:42:44,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2023-12-19 15:42:44,426 INFO L87 Difference]: Start difference. First operand 1148 states and 1432 transitions. Second operand has 15 states, 13 states have (on average 3.923076923076923) internal successors, (51), 14 states have internal predecessors, (51), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2023-12-19 15:42:45,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:42:45,333 INFO L93 Difference]: Finished difference Result 2215 states and 2759 transitions. [2023-12-19 15:42:45,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-19 15:42:45,336 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 3.923076923076923) internal successors, (51), 14 states have internal predecessors, (51), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) Word has length 118 [2023-12-19 15:42:45,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:42:45,340 INFO L225 Difference]: With dead ends: 2215 [2023-12-19 15:42:45,340 INFO L226 Difference]: Without dead ends: 1530 [2023-12-19 15:42:45,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=206, Invalid=606, Unknown=0, NotChecked=0, Total=812 [2023-12-19 15:42:45,344 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 566 mSDsluCounter, 948 mSDsCounter, 0 mSdLazyCounter, 762 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 566 SdHoareTripleChecker+Valid, 1103 SdHoareTripleChecker+Invalid, 903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-19 15:42:45,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [566 Valid, 1103 Invalid, 903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 762 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-19 15:42:45,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1530 states. [2023-12-19 15:42:45,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1530 to 1156. [2023-12-19 15:42:45,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1156 states, 1075 states have (on average 1.2316279069767442) internal successors, (1324), 1078 states have internal predecessors, (1324), 58 states have call successors, (58), 22 states have call predecessors, (58), 22 states have return successors, (58), 55 states have call predecessors, (58), 58 states have call successors, (58) [2023-12-19 15:42:45,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1156 states to 1156 states and 1440 transitions. [2023-12-19 15:42:45,439 INFO L78 Accepts]: Start accepts. Automaton has 1156 states and 1440 transitions. Word has length 118 [2023-12-19 15:42:45,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:42:45,439 INFO L495 AbstractCegarLoop]: Abstraction has 1156 states and 1440 transitions. [2023-12-19 15:42:45,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 3.923076923076923) internal successors, (51), 14 states have internal predecessors, (51), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2023-12-19 15:42:45,439 INFO L276 IsEmpty]: Start isEmpty. Operand 1156 states and 1440 transitions. [2023-12-19 15:42:45,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-19 15:42:45,440 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:42:45,440 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:42:45,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-12-19 15:42:45,440 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:42:45,441 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:42:45,441 INFO L85 PathProgramCache]: Analyzing trace with hash -2121592023, now seen corresponding path program 1 times [2023-12-19 15:42:45,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:42:45,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268228877] [2023-12-19 15:42:45,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:45,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:42:45,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:45,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:42:45,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:45,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:42:45,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:45,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:42:45,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:45,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:42:45,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:45,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:42:45,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:45,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:42:45,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:45,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:42:45,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:45,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:42:45,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:45,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:42:45,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:45,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:42:45,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:45,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:42:45,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:45,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:42:45,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:45,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:42:45,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:45,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:42:45,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:45,857 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 15:42:45,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:42:45,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268228877] [2023-12-19 15:42:45,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268228877] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:42:45,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:42:45,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-19 15:42:45,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438503792] [2023-12-19 15:42:45,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:42:45,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-19 15:42:45,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:42:45,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-19 15:42:45,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-12-19 15:42:45,859 INFO L87 Difference]: Start difference. First operand 1156 states and 1440 transitions. Second operand has 11 states, 9 states have (on average 5.666666666666667) internal successors, (51), 11 states have internal predecessors, (51), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2023-12-19 15:42:46,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:42:46,253 INFO L93 Difference]: Finished difference Result 2363 states and 2931 transitions. [2023-12-19 15:42:46,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-19 15:42:46,253 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 5.666666666666667) internal successors, (51), 11 states have internal predecessors, (51), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) Word has length 118 [2023-12-19 15:42:46,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:42:46,257 INFO L225 Difference]: With dead ends: 2363 [2023-12-19 15:42:46,257 INFO L226 Difference]: Without dead ends: 1678 [2023-12-19 15:42:46,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2023-12-19 15:42:46,259 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 307 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 686 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 15:42:46,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [307 Valid, 686 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 15:42:46,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1678 states. [2023-12-19 15:42:46,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1678 to 1176. [2023-12-19 15:42:46,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1176 states, 1095 states have (on average 1.2383561643835617) internal successors, (1356), 1098 states have internal predecessors, (1356), 58 states have call successors, (58), 22 states have call predecessors, (58), 22 states have return successors, (58), 55 states have call predecessors, (58), 58 states have call successors, (58) [2023-12-19 15:42:46,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1176 states to 1176 states and 1472 transitions. [2023-12-19 15:42:46,347 INFO L78 Accepts]: Start accepts. Automaton has 1176 states and 1472 transitions. Word has length 118 [2023-12-19 15:42:46,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:42:46,348 INFO L495 AbstractCegarLoop]: Abstraction has 1176 states and 1472 transitions. [2023-12-19 15:42:46,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 5.666666666666667) internal successors, (51), 11 states have internal predecessors, (51), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2023-12-19 15:42:46,348 INFO L276 IsEmpty]: Start isEmpty. Operand 1176 states and 1472 transitions. [2023-12-19 15:42:46,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-19 15:42:46,349 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:42:46,349 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:42:46,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2023-12-19 15:42:46,349 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:42:46,349 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:42:46,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1162258023, now seen corresponding path program 1 times [2023-12-19 15:42:46,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:42:46,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492927281] [2023-12-19 15:42:46,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:46,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:42:46,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:46,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:42:46,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:46,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:42:46,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:46,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:42:46,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:46,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:42:46,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:46,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:42:46,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:46,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:42:46,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:46,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:42:46,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:46,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:42:46,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:46,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:42:46,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:46,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:42:46,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:46,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:42:46,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:46,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:42:46,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:46,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:42:46,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:46,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:42:46,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:46,929 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 15:42:46,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:42:46,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492927281] [2023-12-19 15:42:46,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492927281] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:42:46,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:42:46,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-12-19 15:42:46,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328678804] [2023-12-19 15:42:46,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:42:46,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-19 15:42:46,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:42:46,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-19 15:42:46,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2023-12-19 15:42:46,931 INFO L87 Difference]: Start difference. First operand 1176 states and 1472 transitions. Second operand has 15 states, 14 states have (on average 3.642857142857143) internal successors, (51), 15 states have internal predecessors, (51), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-19 15:42:48,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:42:48,122 INFO L93 Difference]: Finished difference Result 2460 states and 3035 transitions. [2023-12-19 15:42:48,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-19 15:42:48,122 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.642857142857143) internal successors, (51), 15 states have internal predecessors, (51), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 118 [2023-12-19 15:42:48,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:42:48,126 INFO L225 Difference]: With dead ends: 2460 [2023-12-19 15:42:48,126 INFO L226 Difference]: Without dead ends: 1739 [2023-12-19 15:42:48,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=190, Invalid=680, Unknown=0, NotChecked=0, Total=870 [2023-12-19 15:42:48,130 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 617 mSDsluCounter, 1065 mSDsCounter, 0 mSdLazyCounter, 1057 mSolverCounterSat, 191 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 617 SdHoareTripleChecker+Valid, 1218 SdHoareTripleChecker+Invalid, 1248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 191 IncrementalHoareTripleChecker+Valid, 1057 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-19 15:42:48,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [617 Valid, 1218 Invalid, 1248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [191 Valid, 1057 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-19 15:42:48,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1739 states. [2023-12-19 15:42:48,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1739 to 1172. [2023-12-19 15:42:48,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1172 states, 1091 states have (on average 1.235563703024748) internal successors, (1348), 1094 states have internal predecessors, (1348), 58 states have call successors, (58), 22 states have call predecessors, (58), 22 states have return successors, (58), 55 states have call predecessors, (58), 58 states have call successors, (58) [2023-12-19 15:42:48,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1172 states to 1172 states and 1464 transitions. [2023-12-19 15:42:48,227 INFO L78 Accepts]: Start accepts. Automaton has 1172 states and 1464 transitions. Word has length 118 [2023-12-19 15:42:48,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:42:48,228 INFO L495 AbstractCegarLoop]: Abstraction has 1172 states and 1464 transitions. [2023-12-19 15:42:48,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.642857142857143) internal successors, (51), 15 states have internal predecessors, (51), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-19 15:42:48,229 INFO L276 IsEmpty]: Start isEmpty. Operand 1172 states and 1464 transitions. [2023-12-19 15:42:48,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-19 15:42:48,229 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:42:48,229 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:42:48,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2023-12-19 15:42:48,230 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:42:48,230 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:42:48,230 INFO L85 PathProgramCache]: Analyzing trace with hash 1443152355, now seen corresponding path program 1 times [2023-12-19 15:42:48,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:42:48,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646686153] [2023-12-19 15:42:48,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:48,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:42:48,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:49,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:42:49,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:49,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:42:49,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:49,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:42:49,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:49,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:42:49,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:49,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:42:49,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:49,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:42:49,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:49,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:42:49,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:49,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:42:49,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:49,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:42:49,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:49,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:42:49,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:49,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:42:49,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:49,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:42:49,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:49,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:42:49,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:49,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:42:49,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:49,181 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 15:42:49,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:42:49,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646686153] [2023-12-19 15:42:49,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646686153] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:42:49,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:42:49,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2023-12-19 15:42:49,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3314599] [2023-12-19 15:42:49,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:42:49,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-19 15:42:49,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:42:49,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-19 15:42:49,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=306, Unknown=0, NotChecked=0, Total=380 [2023-12-19 15:42:49,183 INFO L87 Difference]: Start difference. First operand 1172 states and 1464 transitions. Second operand has 20 states, 17 states have (on average 3.0) internal successors, (51), 18 states have internal predecessors, (51), 8 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 7 states have call predecessors, (14), 8 states have call successors, (14) [2023-12-19 15:42:50,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:42:50,570 INFO L93 Difference]: Finished difference Result 2228 states and 2777 transitions. [2023-12-19 15:42:50,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-19 15:42:50,570 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 3.0) internal successors, (51), 18 states have internal predecessors, (51), 8 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 7 states have call predecessors, (14), 8 states have call successors, (14) Word has length 118 [2023-12-19 15:42:50,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:42:50,574 INFO L225 Difference]: With dead ends: 2228 [2023-12-19 15:42:50,574 INFO L226 Difference]: Without dead ends: 1523 [2023-12-19 15:42:50,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=325, Invalid=1081, Unknown=0, NotChecked=0, Total=1406 [2023-12-19 15:42:50,575 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 669 mSDsluCounter, 1177 mSDsCounter, 0 mSdLazyCounter, 869 mSolverCounterSat, 197 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 669 SdHoareTripleChecker+Valid, 1286 SdHoareTripleChecker+Invalid, 1066 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 197 IncrementalHoareTripleChecker+Valid, 869 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-19 15:42:50,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [669 Valid, 1286 Invalid, 1066 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [197 Valid, 869 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-19 15:42:50,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1523 states. [2023-12-19 15:42:50,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1523 to 1172. [2023-12-19 15:42:50,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1172 states, 1091 states have (on average 1.235563703024748) internal successors, (1348), 1094 states have internal predecessors, (1348), 58 states have call successors, (58), 22 states have call predecessors, (58), 22 states have return successors, (58), 55 states have call predecessors, (58), 58 states have call successors, (58) [2023-12-19 15:42:50,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1172 states to 1172 states and 1464 transitions. [2023-12-19 15:42:50,668 INFO L78 Accepts]: Start accepts. Automaton has 1172 states and 1464 transitions. Word has length 118 [2023-12-19 15:42:50,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:42:50,669 INFO L495 AbstractCegarLoop]: Abstraction has 1172 states and 1464 transitions. [2023-12-19 15:42:50,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 3.0) internal successors, (51), 18 states have internal predecessors, (51), 8 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 7 states have call predecessors, (14), 8 states have call successors, (14) [2023-12-19 15:42:50,669 INFO L276 IsEmpty]: Start isEmpty. Operand 1172 states and 1464 transitions. [2023-12-19 15:42:50,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-19 15:42:50,670 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:42:50,670 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:42:50,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2023-12-19 15:42:50,670 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:42:50,670 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:42:50,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1320719461, now seen corresponding path program 1 times [2023-12-19 15:42:50,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:42:50,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365698156] [2023-12-19 15:42:50,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:50,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:42:50,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:51,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:42:51,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:51,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:42:51,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:51,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:42:51,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:51,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:42:51,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:51,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:42:51,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:51,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:42:51,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:51,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:42:51,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:51,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:42:51,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:51,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:42:51,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:51,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:42:51,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:51,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:42:51,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:51,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:42:51,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:51,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:42:51,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:51,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:42:51,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:51,039 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 15:42:51,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:42:51,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365698156] [2023-12-19 15:42:51,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365698156] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:42:51,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:42:51,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-19 15:42:51,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533775125] [2023-12-19 15:42:51,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:42:51,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-19 15:42:51,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:42:51,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-19 15:42:51,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-12-19 15:42:51,040 INFO L87 Difference]: Start difference. First operand 1172 states and 1464 transitions. Second operand has 11 states, 10 states have (on average 5.1) internal successors, (51), 11 states have internal predecessors, (51), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-19 15:42:51,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:42:51,587 INFO L93 Difference]: Finished difference Result 2259 states and 2848 transitions. [2023-12-19 15:42:51,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-19 15:42:51,587 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.1) internal successors, (51), 11 states have internal predecessors, (51), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 118 [2023-12-19 15:42:51,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:42:51,590 INFO L225 Difference]: With dead ends: 2259 [2023-12-19 15:42:51,590 INFO L226 Difference]: Without dead ends: 1472 [2023-12-19 15:42:51,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2023-12-19 15:42:51,591 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 289 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 15:42:51,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 592 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 15:42:51,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1472 states. [2023-12-19 15:42:51,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1472 to 1196. [2023-12-19 15:42:51,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1196 states, 1115 states have (on average 1.2304932735426009) internal successors, (1372), 1118 states have internal predecessors, (1372), 58 states have call successors, (58), 22 states have call predecessors, (58), 22 states have return successors, (58), 55 states have call predecessors, (58), 58 states have call successors, (58) [2023-12-19 15:42:51,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1196 states to 1196 states and 1488 transitions. [2023-12-19 15:42:51,687 INFO L78 Accepts]: Start accepts. Automaton has 1196 states and 1488 transitions. Word has length 118 [2023-12-19 15:42:51,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:42:51,687 INFO L495 AbstractCegarLoop]: Abstraction has 1196 states and 1488 transitions. [2023-12-19 15:42:51,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.1) internal successors, (51), 11 states have internal predecessors, (51), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-19 15:42:51,688 INFO L276 IsEmpty]: Start isEmpty. Operand 1196 states and 1488 transitions. [2023-12-19 15:42:51,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-19 15:42:51,688 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:42:51,688 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:42:51,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2023-12-19 15:42:51,689 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:42:51,689 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:42:51,689 INFO L85 PathProgramCache]: Analyzing trace with hash 811246371, now seen corresponding path program 1 times [2023-12-19 15:42:51,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:42:51,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30464995] [2023-12-19 15:42:51,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:51,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:42:51,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:52,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:42:52,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:52,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:42:52,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:52,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:42:52,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:52,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:42:52,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:52,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:42:52,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:52,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:42:52,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:52,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:42:52,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:52,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:42:52,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:52,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:42:52,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:52,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:42:52,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:52,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:42:52,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:52,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:42:52,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:52,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:42:52,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:52,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:42:52,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:52,231 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 15:42:52,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:42:52,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30464995] [2023-12-19 15:42:52,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30464995] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:42:52,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:42:52,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-12-19 15:42:52,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64230592] [2023-12-19 15:42:52,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:42:52,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-19 15:42:52,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:42:52,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-19 15:42:52,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2023-12-19 15:42:52,232 INFO L87 Difference]: Start difference. First operand 1196 states and 1488 transitions. Second operand has 16 states, 15 states have (on average 3.4) internal successors, (51), 16 states have internal predecessors, (51), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-19 15:42:53,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:42:53,372 INFO L93 Difference]: Finished difference Result 2261 states and 2807 transitions. [2023-12-19 15:42:53,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-19 15:42:53,373 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.4) internal successors, (51), 16 states have internal predecessors, (51), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 118 [2023-12-19 15:42:53,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:42:53,375 INFO L225 Difference]: With dead ends: 2261 [2023-12-19 15:42:53,375 INFO L226 Difference]: Without dead ends: 1530 [2023-12-19 15:42:53,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=199, Invalid=793, Unknown=0, NotChecked=0, Total=992 [2023-12-19 15:42:53,376 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 565 mSDsluCounter, 1233 mSDsCounter, 0 mSdLazyCounter, 1152 mSolverCounterSat, 200 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 565 SdHoareTripleChecker+Valid, 1397 SdHoareTripleChecker+Invalid, 1352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 200 IncrementalHoareTripleChecker+Valid, 1152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-19 15:42:53,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [565 Valid, 1397 Invalid, 1352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [200 Valid, 1152 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-19 15:42:53,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1530 states. [2023-12-19 15:42:53,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1530 to 1190. [2023-12-19 15:42:53,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1190 states, 1109 states have (on average 1.2281334535617674) internal successors, (1362), 1112 states have internal predecessors, (1362), 58 states have call successors, (58), 22 states have call predecessors, (58), 22 states have return successors, (58), 55 states have call predecessors, (58), 58 states have call successors, (58) [2023-12-19 15:42:53,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1190 states to 1190 states and 1478 transitions. [2023-12-19 15:42:53,467 INFO L78 Accepts]: Start accepts. Automaton has 1190 states and 1478 transitions. Word has length 118 [2023-12-19 15:42:53,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:42:53,467 INFO L495 AbstractCegarLoop]: Abstraction has 1190 states and 1478 transitions. [2023-12-19 15:42:53,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.4) internal successors, (51), 16 states have internal predecessors, (51), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-19 15:42:53,467 INFO L276 IsEmpty]: Start isEmpty. Operand 1190 states and 1478 transitions. [2023-12-19 15:42:53,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-19 15:42:53,468 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:42:53,468 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:42:53,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2023-12-19 15:42:53,468 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:42:53,469 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:42:53,469 INFO L85 PathProgramCache]: Analyzing trace with hash -809214701, now seen corresponding path program 1 times [2023-12-19 15:42:53,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:42:53,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958236267] [2023-12-19 15:42:53,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:53,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:42:53,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:53,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:42:53,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:53,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:42:53,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:53,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:42:53,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:53,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:42:53,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:53,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:42:53,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:53,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:42:53,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:53,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:42:53,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:53,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:42:53,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:53,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:42:53,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:53,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:42:53,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:53,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:42:53,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:53,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:42:53,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:53,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:42:53,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:53,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:42:53,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:53,950 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 15:42:53,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:42:53,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958236267] [2023-12-19 15:42:53,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958236267] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:42:53,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:42:53,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-12-19 15:42:53,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634936380] [2023-12-19 15:42:53,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:42:53,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-19 15:42:53,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:42:53,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-19 15:42:53,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2023-12-19 15:42:53,952 INFO L87 Difference]: Start difference. First operand 1190 states and 1478 transitions. Second operand has 15 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 15 states have internal predecessors, (53), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-19 15:42:54,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:42:54,730 INFO L93 Difference]: Finished difference Result 2339 states and 2932 transitions. [2023-12-19 15:42:54,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-19 15:42:54,730 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 15 states have internal predecessors, (53), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 120 [2023-12-19 15:42:54,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:42:54,732 INFO L225 Difference]: With dead ends: 2339 [2023-12-19 15:42:54,732 INFO L226 Difference]: Without dead ends: 1626 [2023-12-19 15:42:54,733 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=260, Invalid=1000, Unknown=0, NotChecked=0, Total=1260 [2023-12-19 15:42:54,734 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 414 mSDsluCounter, 1032 mSDsCounter, 0 mSdLazyCounter, 640 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 414 SdHoareTripleChecker+Valid, 1153 SdHoareTripleChecker+Invalid, 667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 15:42:54,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [414 Valid, 1153 Invalid, 667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 640 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 15:42:54,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1626 states. [2023-12-19 15:42:54,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1626 to 1309. [2023-12-19 15:42:54,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1309 states, 1228 states have (on average 1.242671009771987) internal successors, (1526), 1231 states have internal predecessors, (1526), 58 states have call successors, (58), 22 states have call predecessors, (58), 22 states have return successors, (58), 55 states have call predecessors, (58), 58 states have call successors, (58) [2023-12-19 15:42:54,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1309 states to 1309 states and 1642 transitions. [2023-12-19 15:42:54,827 INFO L78 Accepts]: Start accepts. Automaton has 1309 states and 1642 transitions. Word has length 120 [2023-12-19 15:42:54,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:42:54,827 INFO L495 AbstractCegarLoop]: Abstraction has 1309 states and 1642 transitions. [2023-12-19 15:42:54,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 15 states have internal predecessors, (53), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-19 15:42:54,828 INFO L276 IsEmpty]: Start isEmpty. Operand 1309 states and 1642 transitions. [2023-12-19 15:42:54,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-19 15:42:54,828 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:42:54,828 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:42:54,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2023-12-19 15:42:54,829 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:42:54,829 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:42:54,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1820331951, now seen corresponding path program 1 times [2023-12-19 15:42:54,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:42:54,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566096714] [2023-12-19 15:42:54,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:54,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:42:54,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:55,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:42:55,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:55,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:42:55,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:55,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:42:55,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:55,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:42:55,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:55,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:42:55,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:55,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:42:55,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:55,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:42:55,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:55,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:42:55,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:55,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:42:55,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:55,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:42:55,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:55,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:42:55,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:55,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:42:55,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:55,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:42:55,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:55,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:42:55,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:55,069 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 15:42:55,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:42:55,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566096714] [2023-12-19 15:42:55,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566096714] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:42:55,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:42:55,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-19 15:42:55,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390252609] [2023-12-19 15:42:55,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:42:55,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-19 15:42:55,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:42:55,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-19 15:42:55,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-19 15:42:55,070 INFO L87 Difference]: Start difference. First operand 1309 states and 1642 transitions. Second operand has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-19 15:42:55,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:42:55,428 INFO L93 Difference]: Finished difference Result 2593 states and 3240 transitions. [2023-12-19 15:42:55,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 15:42:55,428 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 120 [2023-12-19 15:42:55,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:42:55,431 INFO L225 Difference]: With dead ends: 2593 [2023-12-19 15:42:55,431 INFO L226 Difference]: Without dead ends: 1790 [2023-12-19 15:42:55,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2023-12-19 15:42:55,432 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 223 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 15:42:55,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 637 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 15:42:55,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1790 states. [2023-12-19 15:42:55,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1790 to 1317. [2023-12-19 15:42:55,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1317 states, 1236 states have (on average 1.2378640776699028) internal successors, (1530), 1239 states have internal predecessors, (1530), 58 states have call successors, (58), 22 states have call predecessors, (58), 22 states have return successors, (58), 55 states have call predecessors, (58), 58 states have call successors, (58) [2023-12-19 15:42:55,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1317 states to 1317 states and 1646 transitions. [2023-12-19 15:42:55,529 INFO L78 Accepts]: Start accepts. Automaton has 1317 states and 1646 transitions. Word has length 120 [2023-12-19 15:42:55,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:42:55,530 INFO L495 AbstractCegarLoop]: Abstraction has 1317 states and 1646 transitions. [2023-12-19 15:42:55,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-19 15:42:55,530 INFO L276 IsEmpty]: Start isEmpty. Operand 1317 states and 1646 transitions. [2023-12-19 15:42:55,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-19 15:42:55,530 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:42:55,530 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:42:55,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2023-12-19 15:42:55,531 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:42:55,531 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:42:55,531 INFO L85 PathProgramCache]: Analyzing trace with hash 774090881, now seen corresponding path program 1 times [2023-12-19 15:42:55,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:42:55,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207520816] [2023-12-19 15:42:55,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:55,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:42:55,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:55,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:42:55,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:55,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:42:55,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:55,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:42:55,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:55,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:42:55,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:55,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:42:55,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:55,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:42:55,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:55,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:42:55,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:55,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:42:55,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:55,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:42:55,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:55,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:42:55,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:55,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:42:55,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:55,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:42:55,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:55,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:42:55,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:55,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:42:55,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:55,929 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 15:42:55,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:42:55,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207520816] [2023-12-19 15:42:55,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207520816] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:42:55,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:42:55,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-19 15:42:55,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7894739] [2023-12-19 15:42:55,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:42:55,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-19 15:42:55,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:42:55,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-19 15:42:55,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-12-19 15:42:55,931 INFO L87 Difference]: Start difference. First operand 1317 states and 1646 transitions. Second operand has 11 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:42:56,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:42:56,709 INFO L93 Difference]: Finished difference Result 2514 states and 3124 transitions. [2023-12-19 15:42:56,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-19 15:42:56,710 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 120 [2023-12-19 15:42:56,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:42:56,712 INFO L225 Difference]: With dead ends: 2514 [2023-12-19 15:42:56,712 INFO L226 Difference]: Without dead ends: 1662 [2023-12-19 15:42:56,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=121, Invalid=341, Unknown=0, NotChecked=0, Total=462 [2023-12-19 15:42:56,714 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 282 mSDsluCounter, 769 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 925 SdHoareTripleChecker+Invalid, 619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-19 15:42:56,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 925 Invalid, 619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-19 15:42:56,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1662 states. [2023-12-19 15:42:56,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1662 to 1309. [2023-12-19 15:42:56,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1309 states, 1228 states have (on average 1.237785016286645) internal successors, (1520), 1231 states have internal predecessors, (1520), 58 states have call successors, (58), 22 states have call predecessors, (58), 22 states have return successors, (58), 55 states have call predecessors, (58), 58 states have call successors, (58) [2023-12-19 15:42:56,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1309 states to 1309 states and 1636 transitions. [2023-12-19 15:42:56,811 INFO L78 Accepts]: Start accepts. Automaton has 1309 states and 1636 transitions. Word has length 120 [2023-12-19 15:42:56,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:42:56,811 INFO L495 AbstractCegarLoop]: Abstraction has 1309 states and 1636 transitions. [2023-12-19 15:42:56,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:42:56,811 INFO L276 IsEmpty]: Start isEmpty. Operand 1309 states and 1636 transitions. [2023-12-19 15:42:56,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-19 15:42:56,812 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:42:56,812 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:42:56,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2023-12-19 15:42:56,812 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:42:56,812 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:42:56,813 INFO L85 PathProgramCache]: Analyzing trace with hash 796723135, now seen corresponding path program 1 times [2023-12-19 15:42:56,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:42:56,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162560072] [2023-12-19 15:42:56,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:56,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:42:56,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:57,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:42:57,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:57,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:42:57,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:57,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:42:57,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:57,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:42:57,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:57,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:42:57,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:57,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:42:57,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:57,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:42:57,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:57,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:42:57,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:57,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:42:57,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:57,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:42:57,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:57,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:42:57,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:57,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:42:57,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:57,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:42:57,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:57,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:42:57,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:57,257 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 15:42:57,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:42:57,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162560072] [2023-12-19 15:42:57,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162560072] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:42:57,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:42:57,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-19 15:42:57,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437578777] [2023-12-19 15:42:57,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:42:57,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-19 15:42:57,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:42:57,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-19 15:42:57,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-12-19 15:42:57,258 INFO L87 Difference]: Start difference. First operand 1309 states and 1636 transitions. Second operand has 14 states, 13 states have (on average 4.076923076923077) internal successors, (53), 14 states have internal predecessors, (53), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-19 15:42:58,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:42:58,205 INFO L93 Difference]: Finished difference Result 2565 states and 3186 transitions. [2023-12-19 15:42:58,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-19 15:42:58,206 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.076923076923077) internal successors, (53), 14 states have internal predecessors, (53), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 120 [2023-12-19 15:42:58,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:42:58,208 INFO L225 Difference]: With dead ends: 2565 [2023-12-19 15:42:58,208 INFO L226 Difference]: Without dead ends: 1754 [2023-12-19 15:42:58,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=178, Invalid=578, Unknown=0, NotChecked=0, Total=756 [2023-12-19 15:42:58,210 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 410 mSDsluCounter, 1240 mSDsCounter, 0 mSdLazyCounter, 820 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 1418 SdHoareTripleChecker+Invalid, 939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-19 15:42:58,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [410 Valid, 1418 Invalid, 939 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 820 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-19 15:42:58,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1754 states. [2023-12-19 15:42:58,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1754 to 1312. [2023-12-19 15:42:58,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1312 states, 1231 states have (on average 1.2372055239642568) internal successors, (1523), 1234 states have internal predecessors, (1523), 58 states have call successors, (58), 22 states have call predecessors, (58), 22 states have return successors, (58), 55 states have call predecessors, (58), 58 states have call successors, (58) [2023-12-19 15:42:58,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1312 states to 1312 states and 1639 transitions. [2023-12-19 15:42:58,310 INFO L78 Accepts]: Start accepts. Automaton has 1312 states and 1639 transitions. Word has length 120 [2023-12-19 15:42:58,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:42:58,310 INFO L495 AbstractCegarLoop]: Abstraction has 1312 states and 1639 transitions. [2023-12-19 15:42:58,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.076923076923077) internal successors, (53), 14 states have internal predecessors, (53), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-19 15:42:58,310 INFO L276 IsEmpty]: Start isEmpty. Operand 1312 states and 1639 transitions. [2023-12-19 15:42:58,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-19 15:42:58,311 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:42:58,311 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:42:58,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2023-12-19 15:42:58,311 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:42:58,312 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:42:58,312 INFO L85 PathProgramCache]: Analyzing trace with hash 941126889, now seen corresponding path program 1 times [2023-12-19 15:42:58,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:42:58,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545113713] [2023-12-19 15:42:58,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:58,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:42:58,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:58,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:42:58,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:58,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:42:58,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:58,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:42:58,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:58,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:42:58,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:58,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:42:58,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:58,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:42:58,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:58,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:42:58,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:58,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:42:58,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:58,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:42:58,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:58,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:42:58,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:58,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:42:58,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:58,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:42:58,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:58,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:42:58,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:58,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:42:58,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:58,557 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 15:42:58,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:42:58,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545113713] [2023-12-19 15:42:58,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545113713] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:42:58,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:42:58,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-19 15:42:58,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63802224] [2023-12-19 15:42:58,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:42:58,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-19 15:42:58,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:42:58,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-19 15:42:58,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-19 15:42:58,559 INFO L87 Difference]: Start difference. First operand 1312 states and 1639 transitions. Second operand has 8 states, 7 states have (on average 7.857142857142857) internal successors, (55), 8 states have internal predecessors, (55), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-19 15:42:58,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:42:58,913 INFO L93 Difference]: Finished difference Result 2307 states and 2884 transitions. [2023-12-19 15:42:58,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 15:42:58,914 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.857142857142857) internal successors, (55), 8 states have internal predecessors, (55), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 122 [2023-12-19 15:42:58,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:42:58,916 INFO L225 Difference]: With dead ends: 2307 [2023-12-19 15:42:58,916 INFO L226 Difference]: Without dead ends: 1440 [2023-12-19 15:42:58,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2023-12-19 15:42:58,918 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 180 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 15:42:58,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 559 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 15:42:58,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1440 states. [2023-12-19 15:42:59,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1440 to 1182. [2023-12-19 15:42:59,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1182 states, 1101 states have (on average 1.2306993642143507) internal successors, (1355), 1104 states have internal predecessors, (1355), 58 states have call successors, (58), 22 states have call predecessors, (58), 22 states have return successors, (58), 55 states have call predecessors, (58), 58 states have call successors, (58) [2023-12-19 15:42:59,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1182 states to 1182 states and 1471 transitions. [2023-12-19 15:42:59,020 INFO L78 Accepts]: Start accepts. Automaton has 1182 states and 1471 transitions. Word has length 122 [2023-12-19 15:42:59,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:42:59,021 INFO L495 AbstractCegarLoop]: Abstraction has 1182 states and 1471 transitions. [2023-12-19 15:42:59,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.857142857142857) internal successors, (55), 8 states have internal predecessors, (55), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-19 15:42:59,021 INFO L276 IsEmpty]: Start isEmpty. Operand 1182 states and 1471 transitions. [2023-12-19 15:42:59,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-19 15:42:59,022 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:42:59,022 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:42:59,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2023-12-19 15:42:59,022 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:42:59,022 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:42:59,022 INFO L85 PathProgramCache]: Analyzing trace with hash 959925283, now seen corresponding path program 1 times [2023-12-19 15:42:59,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:42:59,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172516489] [2023-12-19 15:42:59,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:59,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:42:59,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:00,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:43:00,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:00,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:43:00,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:00,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:43:00,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:00,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:43:00,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:00,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:43:00,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:00,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:43:00,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:00,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:43:00,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:00,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:43:00,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:00,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:43:00,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:00,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:43:00,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:00,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:43:00,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:00,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:43:00,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:00,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:43:00,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:00,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:43:00,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:00,132 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 15:43:00,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:43:00,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172516489] [2023-12-19 15:43:00,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172516489] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:43:00,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:43:00,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2023-12-19 15:43:00,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816391956] [2023-12-19 15:43:00,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:43:00,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-19 15:43:00,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:43:00,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-19 15:43:00,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=488, Unknown=0, NotChecked=0, Total=552 [2023-12-19 15:43:00,134 INFO L87 Difference]: Start difference. First operand 1182 states and 1471 transitions. Second operand has 24 states, 23 states have (on average 2.391304347826087) internal successors, (55), 24 states have internal predecessors, (55), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-19 15:43:03,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:43:03,229 INFO L93 Difference]: Finished difference Result 2204 states and 2732 transitions. [2023-12-19 15:43:03,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-12-19 15:43:03,229 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 2.391304347826087) internal successors, (55), 24 states have internal predecessors, (55), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 122 [2023-12-19 15:43:03,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:43:03,231 INFO L225 Difference]: With dead ends: 2204 [2023-12-19 15:43:03,231 INFO L226 Difference]: Without dead ends: 1467 [2023-12-19 15:43:03,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 541 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=501, Invalid=2469, Unknown=0, NotChecked=0, Total=2970 [2023-12-19 15:43:03,232 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 790 mSDsluCounter, 2265 mSDsCounter, 0 mSdLazyCounter, 1952 mSolverCounterSat, 171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 790 SdHoareTripleChecker+Valid, 2440 SdHoareTripleChecker+Invalid, 2123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 171 IncrementalHoareTripleChecker+Valid, 1952 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-19 15:43:03,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [790 Valid, 2440 Invalid, 2123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [171 Valid, 1952 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-19 15:43:03,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1467 states. [2023-12-19 15:43:03,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1467 to 1185. [2023-12-19 15:43:03,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1185 states, 1104 states have (on average 1.230072463768116) internal successors, (1358), 1107 states have internal predecessors, (1358), 58 states have call successors, (58), 22 states have call predecessors, (58), 22 states have return successors, (58), 55 states have call predecessors, (58), 58 states have call successors, (58) [2023-12-19 15:43:03,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1185 states to 1185 states and 1474 transitions. [2023-12-19 15:43:03,343 INFO L78 Accepts]: Start accepts. Automaton has 1185 states and 1474 transitions. Word has length 122 [2023-12-19 15:43:03,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:43:03,343 INFO L495 AbstractCegarLoop]: Abstraction has 1185 states and 1474 transitions. [2023-12-19 15:43:03,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 2.391304347826087) internal successors, (55), 24 states have internal predecessors, (55), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-19 15:43:03,343 INFO L276 IsEmpty]: Start isEmpty. Operand 1185 states and 1474 transitions. [2023-12-19 15:43:03,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2023-12-19 15:43:03,345 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:43:03,345 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:43:03,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2023-12-19 15:43:03,345 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:43:03,346 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:43:03,346 INFO L85 PathProgramCache]: Analyzing trace with hash -295557277, now seen corresponding path program 1 times [2023-12-19 15:43:03,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:43:03,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132807956] [2023-12-19 15:43:03,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:43:03,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:43:03,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:08,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:43:08,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:08,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:43:08,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:08,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:43:08,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:08,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:43:08,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:08,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:43:08,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:08,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:43:08,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:08,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:43:08,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:08,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:43:08,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:08,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:43:08,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:08,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:43:08,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:08,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:43:08,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:08,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:43:08,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:08,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:43:08,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:08,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:43:08,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:08,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-19 15:43:08,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:08,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-19 15:43:08,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:08,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-19 15:43:08,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:08,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-12-19 15:43:08,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:08,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-12-19 15:43:08,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:08,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-12-19 15:43:08,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:08,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-12-19 15:43:08,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:08,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-19 15:43:08,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:08,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-12-19 15:43:08,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:08,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-19 15:43:08,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:08,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-12-19 15:43:08,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:08,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-12-19 15:43:08,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:08,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-12-19 15:43:08,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:08,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-12-19 15:43:08,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:08,989 INFO L134 CoverageAnalysis]: Checked inductivity of 1558 backedges. 8 proven. 38 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2023-12-19 15:43:08,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:43:08,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132807956] [2023-12-19 15:43:08,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132807956] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 15:43:08,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1819834872] [2023-12-19 15:43:08,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:43:08,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:43:08,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:43:08,992 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:43:09,006 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-19 15:43:09,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:09,256 INFO L262 TraceCheckSpWp]: Trace formula consists of 759 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-19 15:43:09,281 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:43:09,671 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 15 treesize of output 11 [2023-12-19 15:43:09,675 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 15 treesize of output 1 [2023-12-19 15:43:09,815 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 15 treesize of output 1 [2023-12-19 15:43:10,188 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 7 treesize of output 3 [2023-12-19 15:43:10,191 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 17 treesize of output 9 [2023-12-19 15:43:10,231 INFO L134 CoverageAnalysis]: Checked inductivity of 1558 backedges. 23 proven. 830 refuted. 0 times theorem prover too weak. 705 trivial. 0 not checked. [2023-12-19 15:43:10,231 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 15:43:10,592 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 48 treesize of output 44 [2023-12-19 15:43:10,945 INFO L134 CoverageAnalysis]: Checked inductivity of 1558 backedges. 60 proven. 67 refuted. 0 times theorem prover too weak. 1431 trivial. 0 not checked. [2023-12-19 15:43:10,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1819834872] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 15:43:10,946 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-19 15:43:10,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 8, 9] total 43 [2023-12-19 15:43:10,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24399657] [2023-12-19 15:43:10,946 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-19 15:43:10,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2023-12-19 15:43:10,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:43:10,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2023-12-19 15:43:10,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=169, Invalid=1637, Unknown=0, NotChecked=0, Total=1806 [2023-12-19 15:43:10,949 INFO L87 Difference]: Start difference. First operand 1185 states and 1474 transitions. Second operand has 43 states, 37 states have (on average 5.837837837837838) internal successors, (216), 40 states have internal predecessors, (216), 17 states have call successors, (82), 4 states have call predecessors, (82), 5 states have return successors, (82), 13 states have call predecessors, (82), 17 states have call successors, (82) [2023-12-19 15:43:16,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:43:16,700 INFO L93 Difference]: Finished difference Result 2299 states and 2841 transitions. [2023-12-19 15:43:16,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-12-19 15:43:16,701 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 37 states have (on average 5.837837837837838) internal successors, (216), 40 states have internal predecessors, (216), 17 states have call successors, (82), 4 states have call predecessors, (82), 5 states have return successors, (82), 13 states have call predecessors, (82), 17 states have call successors, (82) Word has length 215 [2023-12-19 15:43:16,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:43:16,703 INFO L225 Difference]: With dead ends: 2299 [2023-12-19 15:43:16,703 INFO L226 Difference]: Without dead ends: 1529 [2023-12-19 15:43:16,705 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 564 GetRequests, 477 SyntacticMatches, 1 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1449 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=1278, Invalid=6378, Unknown=0, NotChecked=0, Total=7656 [2023-12-19 15:43:16,705 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 1093 mSDsluCounter, 1319 mSDsCounter, 0 mSdLazyCounter, 2765 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1093 SdHoareTripleChecker+Valid, 1407 SdHoareTripleChecker+Invalid, 2902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 2765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-19 15:43:16,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1093 Valid, 1407 Invalid, 2902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 2765 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-19 15:43:16,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1529 states. [2023-12-19 15:43:16,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1529 to 1033. [2023-12-19 15:43:16,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1033 states, 946 states have (on average 1.1849894291754757) internal successors, (1121), 949 states have internal predecessors, (1121), 58 states have call successors, (58), 28 states have call predecessors, (58), 28 states have return successors, (58), 55 states have call predecessors, (58), 58 states have call successors, (58) [2023-12-19 15:43:16,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1033 states to 1033 states and 1237 transitions. [2023-12-19 15:43:16,866 INFO L78 Accepts]: Start accepts. Automaton has 1033 states and 1237 transitions. Word has length 215 [2023-12-19 15:43:16,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:43:16,866 INFO L495 AbstractCegarLoop]: Abstraction has 1033 states and 1237 transitions. [2023-12-19 15:43:16,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 37 states have (on average 5.837837837837838) internal successors, (216), 40 states have internal predecessors, (216), 17 states have call successors, (82), 4 states have call predecessors, (82), 5 states have return successors, (82), 13 states have call predecessors, (82), 17 states have call successors, (82) [2023-12-19 15:43:16,867 INFO L276 IsEmpty]: Start isEmpty. Operand 1033 states and 1237 transitions. [2023-12-19 15:43:16,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2023-12-19 15:43:16,868 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:43:16,868 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:43:16,877 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-19 15:43:17,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:43:17,075 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:43:17,075 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:43:17,075 INFO L85 PathProgramCache]: Analyzing trace with hash 2039556668, now seen corresponding path program 1 times [2023-12-19 15:43:17,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:43:17,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926244163] [2023-12-19 15:43:17,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:43:17,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:43:17,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:17,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:43:17,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:17,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:43:17,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:17,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:43:17,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:17,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:43:17,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:17,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:43:17,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:17,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:43:17,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:17,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:43:17,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:17,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:43:17,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:17,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:43:17,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:17,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:43:17,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:17,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:43:17,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:17,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:43:17,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:17,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:43:17,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:17,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:43:17,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:17,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-19 15:43:17,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:17,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-19 15:43:17,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:17,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-19 15:43:17,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:17,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-12-19 15:43:17,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:17,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-12-19 15:43:17,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:17,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-12-19 15:43:17,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:17,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-12-19 15:43:17,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:17,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-12-19 15:43:17,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:17,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-12-19 15:43:17,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:17,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-12-19 15:43:17,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:17,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2023-12-19 15:43:17,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:17,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2023-12-19 15:43:17,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:17,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2023-12-19 15:43:17,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:17,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-19 15:43:17,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:17,468 INFO L134 CoverageAnalysis]: Checked inductivity of 1568 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 1541 trivial. 0 not checked. [2023-12-19 15:43:17,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:43:17,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926244163] [2023-12-19 15:43:17,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926244163] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:43:17,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:43:17,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 15:43:17,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538589750] [2023-12-19 15:43:17,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:43:17,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 15:43:17,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:43:17,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 15:43:17,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-19 15:43:17,470 INFO L87 Difference]: Start difference. First operand 1033 states and 1237 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:43:17,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:43:17,748 INFO L93 Difference]: Finished difference Result 2014 states and 2403 transitions. [2023-12-19 15:43:17,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 15:43:17,749 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 227 [2023-12-19 15:43:17,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:43:17,750 INFO L225 Difference]: With dead ends: 2014 [2023-12-19 15:43:17,750 INFO L226 Difference]: Without dead ends: 1100 [2023-12-19 15:43:17,751 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 60 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-12-19 15:43:17,751 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 192 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 15:43:17,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 420 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 15:43:17,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1100 states. [2023-12-19 15:43:17,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1100 to 1033. [2023-12-19 15:43:17,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1033 states, 946 states have (on average 1.1807610993657505) internal successors, (1117), 949 states have internal predecessors, (1117), 58 states have call successors, (58), 28 states have call predecessors, (58), 28 states have return successors, (58), 55 states have call predecessors, (58), 58 states have call successors, (58) [2023-12-19 15:43:17,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1033 states to 1033 states and 1233 transitions. [2023-12-19 15:43:17,869 INFO L78 Accepts]: Start accepts. Automaton has 1033 states and 1233 transitions. Word has length 227 [2023-12-19 15:43:17,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:43:17,869 INFO L495 AbstractCegarLoop]: Abstraction has 1033 states and 1233 transitions. [2023-12-19 15:43:17,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:43:17,869 INFO L276 IsEmpty]: Start isEmpty. Operand 1033 states and 1233 transitions. [2023-12-19 15:43:17,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2023-12-19 15:43:17,871 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:43:17,871 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:43:17,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2023-12-19 15:43:17,871 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:43:17,871 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:43:17,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1646529658, now seen corresponding path program 1 times [2023-12-19 15:43:17,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:43:17,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617470310] [2023-12-19 15:43:17,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:43:17,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:43:17,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:18,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:43:18,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:18,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:43:18,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:18,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:43:18,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:18,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:43:18,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:18,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:43:18,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:18,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:43:18,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:18,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:43:18,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:18,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:43:18,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:18,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:43:18,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:18,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:43:18,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:18,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:43:18,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:18,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:43:18,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:18,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:43:18,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:18,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:43:18,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:18,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-19 15:43:18,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:18,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-19 15:43:18,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:18,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-19 15:43:18,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:18,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-12-19 15:43:18,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:18,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-12-19 15:43:18,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:18,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-12-19 15:43:18,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:18,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-12-19 15:43:18,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:18,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-12-19 15:43:18,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:18,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-12-19 15:43:18,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:18,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-12-19 15:43:18,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:18,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2023-12-19 15:43:18,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:18,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2023-12-19 15:43:18,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:18,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2023-12-19 15:43:18,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:18,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-19 15:43:18,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:18,243 INFO L134 CoverageAnalysis]: Checked inductivity of 1568 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 1548 trivial. 0 not checked. [2023-12-19 15:43:18,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:43:18,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617470310] [2023-12-19 15:43:18,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617470310] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:43:18,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:43:18,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 15:43:18,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971482416] [2023-12-19 15:43:18,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:43:18,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 15:43:18,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:43:18,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 15:43:18,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 15:43:18,253 INFO L87 Difference]: Start difference. First operand 1033 states and 1233 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:43:18,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:43:18,514 INFO L93 Difference]: Finished difference Result 2205 states and 2625 transitions. [2023-12-19 15:43:18,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 15:43:18,514 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 227 [2023-12-19 15:43:18,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:43:18,516 INFO L225 Difference]: With dead ends: 2205 [2023-12-19 15:43:18,516 INFO L226 Difference]: Without dead ends: 1291 [2023-12-19 15:43:18,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-12-19 15:43:18,517 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 118 mSDsluCounter, 835 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 1026 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 15:43:18,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 1026 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 15:43:18,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1291 states. [2023-12-19 15:43:18,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1291 to 1021. [2023-12-19 15:43:18,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1021 states, 934 states have (on average 1.1798715203426124) internal successors, (1102), 937 states have internal predecessors, (1102), 58 states have call successors, (58), 28 states have call predecessors, (58), 28 states have return successors, (58), 55 states have call predecessors, (58), 58 states have call successors, (58) [2023-12-19 15:43:18,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 1218 transitions. [2023-12-19 15:43:18,637 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 1218 transitions. Word has length 227 [2023-12-19 15:43:18,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:43:18,637 INFO L495 AbstractCegarLoop]: Abstraction has 1021 states and 1218 transitions. [2023-12-19 15:43:18,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:43:18,637 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 1218 transitions. [2023-12-19 15:43:18,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2023-12-19 15:43:18,639 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:43:18,639 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:43:18,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2023-12-19 15:43:18,640 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:43:18,640 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:43:18,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1508170542, now seen corresponding path program 1 times [2023-12-19 15:43:18,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:43:18,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813859572] [2023-12-19 15:43:18,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:43:18,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:43:18,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:18,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:43:18,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:18,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:43:18,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:18,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:43:18,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:18,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:43:18,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:18,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:43:18,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:18,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:43:18,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:18,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:43:18,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:18,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:43:18,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:18,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:43:18,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:18,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:43:18,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:18,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:43:18,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:18,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:43:18,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:18,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:43:18,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:18,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:43:18,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:18,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-19 15:43:18,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:18,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-19 15:43:18,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:18,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-19 15:43:18,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:18,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-19 15:43:18,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:18,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-19 15:43:18,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:18,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-19 15:43:18,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:19,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-12-19 15:43:19,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:19,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-12-19 15:43:19,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:19,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-19 15:43:19,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:19,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-19 15:43:19,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:19,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-12-19 15:43:19,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:19,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-12-19 15:43:19,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:19,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-19 15:43:19,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:19,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-19 15:43:19,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:19,009 INFO L134 CoverageAnalysis]: Checked inductivity of 1565 backedges. 12 proven. 16 refuted. 0 times theorem prover too weak. 1537 trivial. 0 not checked. [2023-12-19 15:43:19,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:43:19,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813859572] [2023-12-19 15:43:19,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813859572] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 15:43:19,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1978114634] [2023-12-19 15:43:19,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:43:19,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:43:19,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:43:19,011 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:43:19,036 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-19 15:43:19,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:19,287 INFO L262 TraceCheckSpWp]: Trace formula consists of 796 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-19 15:43:19,291 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:43:19,341 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 54 treesize of output 38 [2023-12-19 15:43:19,353 INFO L134 CoverageAnalysis]: Checked inductivity of 1565 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 1541 trivial. 0 not checked. [2023-12-19 15:43:19,353 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:43:19,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1978114634] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:43:19,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 15:43:19,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 8 [2023-12-19 15:43:19,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376037115] [2023-12-19 15:43:19,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:43:19,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 15:43:19,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:43:19,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 15:43:19,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-19 15:43:19,355 INFO L87 Difference]: Start difference. First operand 1021 states and 1218 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:43:19,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:43:19,551 INFO L93 Difference]: Finished difference Result 1616 states and 1944 transitions. [2023-12-19 15:43:19,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 15:43:19,551 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 227 [2023-12-19 15:43:19,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:43:19,553 INFO L225 Difference]: With dead ends: 1616 [2023-12-19 15:43:19,553 INFO L226 Difference]: Without dead ends: 1010 [2023-12-19 15:43:19,554 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 284 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-12-19 15:43:19,554 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 35 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 15:43:19,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 392 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 15:43:19,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1010 states. [2023-12-19 15:43:19,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1010 to 999. [2023-12-19 15:43:19,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 999 states, 912 states have (on average 1.1710526315789473) internal successors, (1068), 915 states have internal predecessors, (1068), 58 states have call successors, (58), 28 states have call predecessors, (58), 28 states have return successors, (58), 55 states have call predecessors, (58), 58 states have call successors, (58) [2023-12-19 15:43:19,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 999 states to 999 states and 1184 transitions. [2023-12-19 15:43:19,672 INFO L78 Accepts]: Start accepts. Automaton has 999 states and 1184 transitions. Word has length 227 [2023-12-19 15:43:19,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:43:19,673 INFO L495 AbstractCegarLoop]: Abstraction has 999 states and 1184 transitions. [2023-12-19 15:43:19,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:43:19,673 INFO L276 IsEmpty]: Start isEmpty. Operand 999 states and 1184 transitions. [2023-12-19 15:43:19,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2023-12-19 15:43:19,674 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:43:19,675 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:43:19,686 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-19 15:43:19,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2023-12-19 15:43:19,875 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:43:19,876 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:43:19,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1639298580, now seen corresponding path program 1 times [2023-12-19 15:43:19,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:43:19,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839148061] [2023-12-19 15:43:19,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:43:19,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:43:19,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:20,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:43:20,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:20,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:43:20,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:20,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:43:20,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:20,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:43:20,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:20,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:43:20,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:20,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:43:20,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:20,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:43:20,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:20,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:43:20,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:20,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:43:20,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:20,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:43:20,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:20,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:43:20,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:20,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:43:20,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:20,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:43:20,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:20,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:43:20,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:20,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-19 15:43:20,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:20,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-19 15:43:20,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:20,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-19 15:43:20,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:20,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-12-19 15:43:20,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:20,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-12-19 15:43:20,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:20,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-12-19 15:43:20,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:20,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-12-19 15:43:20,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:20,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-12-19 15:43:20,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:20,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-12-19 15:43:20,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:20,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-12-19 15:43:20,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:20,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2023-12-19 15:43:20,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:20,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2023-12-19 15:43:20,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:20,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2023-12-19 15:43:20,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:20,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-19 15:43:20,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:20,318 INFO L134 CoverageAnalysis]: Checked inductivity of 1568 backedges. 9 proven. 38 refuted. 0 times theorem prover too weak. 1521 trivial. 0 not checked. [2023-12-19 15:43:20,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:43:20,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839148061] [2023-12-19 15:43:20,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839148061] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 15:43:20,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1031167628] [2023-12-19 15:43:20,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:43:20,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:43:20,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:43:20,320 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:43:20,338 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-19 15:43:20,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:20,603 INFO L262 TraceCheckSpWp]: Trace formula consists of 815 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-19 15:43:20,608 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:43:20,676 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 41 treesize of output 25 [2023-12-19 15:43:20,679 INFO L134 CoverageAnalysis]: Checked inductivity of 1568 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 1546 trivial. 0 not checked. [2023-12-19 15:43:20,679 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:43:20,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1031167628] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:43:20,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 15:43:20,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 10 [2023-12-19 15:43:20,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63471224] [2023-12-19 15:43:20,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:43:20,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 15:43:20,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:43:20,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 15:43:20,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-12-19 15:43:20,681 INFO L87 Difference]: Start difference. First operand 999 states and 1184 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:43:20,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:43:20,874 INFO L93 Difference]: Finished difference Result 1643 states and 1953 transitions. [2023-12-19 15:43:20,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 15:43:20,874 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 230 [2023-12-19 15:43:20,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:43:20,877 INFO L225 Difference]: With dead ends: 1643 [2023-12-19 15:43:20,877 INFO L226 Difference]: Without dead ends: 1059 [2023-12-19 15:43:20,877 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 287 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-12-19 15:43:20,878 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 53 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 15:43:20,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 446 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 15:43:20,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1059 states. [2023-12-19 15:43:20,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1059 to 914. [2023-12-19 15:43:20,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 914 states, 839 states have (on average 1.1764004767580454) internal successors, (987), 840 states have internal predecessors, (987), 50 states have call successors, (50), 24 states have call predecessors, (50), 24 states have return successors, (50), 49 states have call predecessors, (50), 50 states have call successors, (50) [2023-12-19 15:43:20,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 914 states to 914 states and 1087 transitions. [2023-12-19 15:43:20,977 INFO L78 Accepts]: Start accepts. Automaton has 914 states and 1087 transitions. Word has length 230 [2023-12-19 15:43:20,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:43:20,978 INFO L495 AbstractCegarLoop]: Abstraction has 914 states and 1087 transitions. [2023-12-19 15:43:20,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:43:20,978 INFO L276 IsEmpty]: Start isEmpty. Operand 914 states and 1087 transitions. [2023-12-19 15:43:20,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2023-12-19 15:43:20,979 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:43:20,980 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:43:20,989 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-19 15:43:21,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:43:21,188 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:43:21,188 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:43:21,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1503884640, now seen corresponding path program 1 times [2023-12-19 15:43:21,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:43:21,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160916812] [2023-12-19 15:43:21,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:43:21,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:43:21,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:21,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:43:21,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:21,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:43:21,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:21,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:43:21,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:21,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:43:21,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:21,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:43:21,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:21,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:43:21,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:21,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:43:21,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:21,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:43:21,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:21,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:43:21,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:21,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:43:21,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:21,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:43:21,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:21,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:43:21,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:21,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:43:21,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:21,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:43:21,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:21,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-19 15:43:21,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:21,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-19 15:43:21,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:21,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-19 15:43:21,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:21,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-19 15:43:21,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:21,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-19 15:43:21,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:21,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-19 15:43:21,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:21,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-12-19 15:43:21,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:21,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-12-19 15:43:21,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:21,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-19 15:43:21,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:21,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-19 15:43:21,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:21,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-12-19 15:43:21,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:21,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-12-19 15:43:21,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:21,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-19 15:43:21,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:21,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-19 15:43:21,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:21,459 INFO L134 CoverageAnalysis]: Checked inductivity of 1566 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1552 trivial. 0 not checked. [2023-12-19 15:43:21,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:43:21,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160916812] [2023-12-19 15:43:21,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160916812] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:43:21,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:43:21,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 15:43:21,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355772180] [2023-12-19 15:43:21,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:43:21,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 15:43:21,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:43:21,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 15:43:21,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-19 15:43:21,460 INFO L87 Difference]: Start difference. First operand 914 states and 1087 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:43:21,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:43:21,610 INFO L93 Difference]: Finished difference Result 1630 states and 1951 transitions. [2023-12-19 15:43:21,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 15:43:21,611 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 231 [2023-12-19 15:43:21,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:43:21,612 INFO L225 Difference]: With dead ends: 1630 [2023-12-19 15:43:21,613 INFO L226 Difference]: Without dead ends: 1131 [2023-12-19 15:43:21,613 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-19 15:43:21,614 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 86 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 15:43:21,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 451 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 15:43:21,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1131 states. [2023-12-19 15:43:21,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1131 to 926. [2023-12-19 15:43:21,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 926 states, 851 states have (on average 1.173913043478261) internal successors, (999), 852 states have internal predecessors, (999), 50 states have call successors, (50), 24 states have call predecessors, (50), 24 states have return successors, (50), 49 states have call predecessors, (50), 50 states have call successors, (50) [2023-12-19 15:43:21,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 926 states to 926 states and 1099 transitions. [2023-12-19 15:43:21,723 INFO L78 Accepts]: Start accepts. Automaton has 926 states and 1099 transitions. Word has length 231 [2023-12-19 15:43:21,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:43:21,723 INFO L495 AbstractCegarLoop]: Abstraction has 926 states and 1099 transitions. [2023-12-19 15:43:21,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:43:21,723 INFO L276 IsEmpty]: Start isEmpty. Operand 926 states and 1099 transitions. [2023-12-19 15:43:21,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2023-12-19 15:43:21,725 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:43:21,725 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:43:21,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2023-12-19 15:43:21,725 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:43:21,725 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:43:21,725 INFO L85 PathProgramCache]: Analyzing trace with hash -84463262, now seen corresponding path program 1 times [2023-12-19 15:43:21,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:43:21,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582380938] [2023-12-19 15:43:21,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:43:21,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:43:21,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:22,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:43:22,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:22,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:43:22,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:22,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:43:22,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:22,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:43:22,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:22,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:43:22,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:22,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:43:22,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:22,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:43:22,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:22,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:43:22,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:22,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:43:22,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:22,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:43:22,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:22,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:43:22,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:22,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:43:22,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:22,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:43:22,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:22,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:43:22,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:22,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-19 15:43:22,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:22,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-19 15:43:22,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:22,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-19 15:43:22,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:22,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-19 15:43:22,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:22,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-19 15:43:22,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:22,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-19 15:43:22,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:22,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-12-19 15:43:22,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:22,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-12-19 15:43:22,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:22,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-19 15:43:22,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:22,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-19 15:43:22,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:22,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-12-19 15:43:22,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:22,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-12-19 15:43:22,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:22,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-19 15:43:22,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:22,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-19 15:43:22,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:22,073 INFO L134 CoverageAnalysis]: Checked inductivity of 1566 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 1541 trivial. 0 not checked. [2023-12-19 15:43:22,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:43:22,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582380938] [2023-12-19 15:43:22,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582380938] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:43:22,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:43:22,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 15:43:22,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368972289] [2023-12-19 15:43:22,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:43:22,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 15:43:22,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:43:22,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 15:43:22,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-19 15:43:22,074 INFO L87 Difference]: Start difference. First operand 926 states and 1099 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:43:22,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:43:22,262 INFO L93 Difference]: Finished difference Result 1546 states and 1833 transitions. [2023-12-19 15:43:22,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 15:43:22,263 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 231 [2023-12-19 15:43:22,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:43:22,264 INFO L225 Difference]: With dead ends: 1546 [2023-12-19 15:43:22,264 INFO L226 Difference]: Without dead ends: 1029 [2023-12-19 15:43:22,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-19 15:43:22,265 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 78 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 15:43:22,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 453 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 15:43:22,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1029 states. [2023-12-19 15:43:22,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1029 to 911. [2023-12-19 15:43:22,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 911 states, 836 states have (on average 1.1626794258373205) internal successors, (972), 837 states have internal predecessors, (972), 50 states have call successors, (50), 24 states have call predecessors, (50), 24 states have return successors, (50), 49 states have call predecessors, (50), 50 states have call successors, (50) [2023-12-19 15:43:22,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 911 states to 911 states and 1072 transitions. [2023-12-19 15:43:22,390 INFO L78 Accepts]: Start accepts. Automaton has 911 states and 1072 transitions. Word has length 231 [2023-12-19 15:43:22,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:43:22,390 INFO L495 AbstractCegarLoop]: Abstraction has 911 states and 1072 transitions. [2023-12-19 15:43:22,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:43:22,390 INFO L276 IsEmpty]: Start isEmpty. Operand 911 states and 1072 transitions. [2023-12-19 15:43:22,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2023-12-19 15:43:22,392 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:43:22,392 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:43:22,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2023-12-19 15:43:22,392 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:43:22,392 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:43:22,392 INFO L85 PathProgramCache]: Analyzing trace with hash -1238804186, now seen corresponding path program 1 times [2023-12-19 15:43:22,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:43:22,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820381397] [2023-12-19 15:43:22,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:43:22,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:43:22,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:22,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:43:22,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:22,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:43:22,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:22,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:43:22,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:22,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:43:22,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:22,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:43:22,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:22,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:43:22,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:22,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:43:22,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:22,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:43:22,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:22,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:43:22,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:22,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:43:22,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:22,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:43:22,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:22,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:43:22,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:22,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:43:22,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:22,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:43:22,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:22,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-19 15:43:22,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:22,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-19 15:43:22,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:22,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-19 15:43:22,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:22,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-19 15:43:22,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:22,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-19 15:43:22,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:22,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-19 15:43:22,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:22,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-12-19 15:43:22,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:22,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-12-19 15:43:22,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:22,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-19 15:43:22,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:22,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-19 15:43:22,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:22,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-12-19 15:43:22,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:22,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-12-19 15:43:22,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:22,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-19 15:43:22,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:22,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-19 15:43:22,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:22,666 INFO L134 CoverageAnalysis]: Checked inductivity of 1566 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 1541 trivial. 0 not checked. [2023-12-19 15:43:22,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:43:22,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820381397] [2023-12-19 15:43:22,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820381397] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:43:22,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:43:22,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 15:43:22,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783401575] [2023-12-19 15:43:22,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:43:22,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 15:43:22,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:43:22,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 15:43:22,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-19 15:43:22,668 INFO L87 Difference]: Start difference. First operand 911 states and 1072 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:43:22,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:43:22,822 INFO L93 Difference]: Finished difference Result 1450 states and 1716 transitions. [2023-12-19 15:43:22,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 15:43:22,823 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 231 [2023-12-19 15:43:22,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:43:22,824 INFO L225 Difference]: With dead ends: 1450 [2023-12-19 15:43:22,824 INFO L226 Difference]: Without dead ends: 948 [2023-12-19 15:43:22,825 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-12-19 15:43:22,825 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 143 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 15:43:22,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 326 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 15:43:22,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2023-12-19 15:43:22,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 899. [2023-12-19 15:43:22,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 899 states, 824 states have (on average 1.1468446601941749) internal successors, (945), 825 states have internal predecessors, (945), 50 states have call successors, (50), 24 states have call predecessors, (50), 24 states have return successors, (50), 49 states have call predecessors, (50), 50 states have call successors, (50) [2023-12-19 15:43:22,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 899 states to 899 states and 1045 transitions. [2023-12-19 15:43:22,933 INFO L78 Accepts]: Start accepts. Automaton has 899 states and 1045 transitions. Word has length 231 [2023-12-19 15:43:22,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:43:22,934 INFO L495 AbstractCegarLoop]: Abstraction has 899 states and 1045 transitions. [2023-12-19 15:43:22,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:43:22,934 INFO L276 IsEmpty]: Start isEmpty. Operand 899 states and 1045 transitions. [2023-12-19 15:43:22,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2023-12-19 15:43:22,935 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:43:22,935 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:43:22,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2023-12-19 15:43:22,936 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:43:22,936 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:43:22,936 INFO L85 PathProgramCache]: Analyzing trace with hash 2045045860, now seen corresponding path program 1 times [2023-12-19 15:43:22,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:43:22,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56594590] [2023-12-19 15:43:22,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:43:22,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:43:23,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:23,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:43:23,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:23,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:43:23,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:23,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:43:23,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:23,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:43:23,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:23,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:43:23,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:23,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:43:23,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:23,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:43:23,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:23,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:43:23,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:23,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:43:23,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:23,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:43:23,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:23,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:43:23,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:23,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:43:23,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:23,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:43:23,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:23,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:43:23,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:23,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-19 15:43:23,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:23,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-19 15:43:23,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:23,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-19 15:43:23,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:23,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-19 15:43:23,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:23,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-19 15:43:23,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:23,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-19 15:43:23,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:23,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-12-19 15:43:23,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:23,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-12-19 15:43:23,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:23,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-19 15:43:23,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:23,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-19 15:43:23,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:23,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-12-19 15:43:23,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:23,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-12-19 15:43:23,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:23,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-19 15:43:23,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:23,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-19 15:43:23,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:23,287 INFO L134 CoverageAnalysis]: Checked inductivity of 1566 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 1541 trivial. 0 not checked. [2023-12-19 15:43:23,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:43:23,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56594590] [2023-12-19 15:43:23,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56594590] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:43:23,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:43:23,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 15:43:23,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939867097] [2023-12-19 15:43:23,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:43:23,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 15:43:23,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:43:23,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 15:43:23,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-19 15:43:23,289 INFO L87 Difference]: Start difference. First operand 899 states and 1045 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:43:23,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:43:23,459 INFO L93 Difference]: Finished difference Result 1419 states and 1655 transitions. [2023-12-19 15:43:23,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 15:43:23,460 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 231 [2023-12-19 15:43:23,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:43:23,461 INFO L225 Difference]: With dead ends: 1419 [2023-12-19 15:43:23,461 INFO L226 Difference]: Without dead ends: 929 [2023-12-19 15:43:23,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-19 15:43:23,463 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 90 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 15:43:23,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 416 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 15:43:23,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 929 states. [2023-12-19 15:43:23,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 929 to 873. [2023-12-19 15:43:23,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 798 states have (on average 1.1303258145363408) internal successors, (902), 799 states have internal predecessors, (902), 50 states have call successors, (50), 24 states have call predecessors, (50), 24 states have return successors, (50), 49 states have call predecessors, (50), 50 states have call successors, (50) [2023-12-19 15:43:23,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1002 transitions. [2023-12-19 15:43:23,573 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1002 transitions. Word has length 231 [2023-12-19 15:43:23,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:43:23,573 INFO L495 AbstractCegarLoop]: Abstraction has 873 states and 1002 transitions. [2023-12-19 15:43:23,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:43:23,574 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1002 transitions. [2023-12-19 15:43:23,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2023-12-19 15:43:23,575 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:43:23,575 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:43:23,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2023-12-19 15:43:23,575 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:43:23,575 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:43:23,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1409848959, now seen corresponding path program 1 times [2023-12-19 15:43:23,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:43:23,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115348835] [2023-12-19 15:43:23,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:43:23,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:43:23,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:24,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:43:24,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:24,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:43:24,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:24,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:43:24,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:24,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:43:24,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:24,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:43:24,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:24,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:43:24,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:24,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:43:24,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:24,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:43:24,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:24,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:43:24,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:24,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:43:24,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:24,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:43:24,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:24,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:43:24,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:24,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:43:24,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:24,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:43:24,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:24,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-19 15:43:24,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:24,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-19 15:43:24,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:24,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-19 15:43:24,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:24,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-19 15:43:24,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:24,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-19 15:43:24,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:24,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-19 15:43:24,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:24,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-12-19 15:43:24,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:24,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-12-19 15:43:24,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:24,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-19 15:43:24,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:24,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-19 15:43:24,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:24,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-12-19 15:43:24,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:24,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-12-19 15:43:24,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:24,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-19 15:43:24,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:24,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-19 15:43:24,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:24,064 INFO L134 CoverageAnalysis]: Checked inductivity of 1566 backedges. 10 proven. 19 refuted. 0 times theorem prover too weak. 1537 trivial. 0 not checked. [2023-12-19 15:43:24,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:43:24,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115348835] [2023-12-19 15:43:24,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115348835] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 15:43:24,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1746556072] [2023-12-19 15:43:24,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:43:24,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:43:24,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:43:24,066 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:43:24,068 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-19 15:43:24,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:24,364 INFO L262 TraceCheckSpWp]: Trace formula consists of 844 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-19 15:43:24,369 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:43:24,399 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 23 treesize of output 15 [2023-12-19 15:43:24,401 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 19 treesize of output 11 [2023-12-19 15:43:24,411 INFO L134 CoverageAnalysis]: Checked inductivity of 1566 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1556 trivial. 0 not checked. [2023-12-19 15:43:24,411 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:43:24,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1746556072] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:43:24,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 15:43:24,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2023-12-19 15:43:24,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415747830] [2023-12-19 15:43:24,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:43:24,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 15:43:24,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:43:24,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 15:43:24,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-12-19 15:43:24,413 INFO L87 Difference]: Start difference. First operand 873 states and 1002 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:43:24,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:43:24,660 INFO L93 Difference]: Finished difference Result 1657 states and 1882 transitions. [2023-12-19 15:43:24,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 15:43:24,660 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 236 [2023-12-19 15:43:24,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:43:24,662 INFO L225 Difference]: With dead ends: 1657 [2023-12-19 15:43:24,662 INFO L226 Difference]: Without dead ends: 1187 [2023-12-19 15:43:24,663 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-12-19 15:43:24,663 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 120 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 15:43:24,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 463 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 15:43:24,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1187 states. [2023-12-19 15:43:24,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1187 to 867. [2023-12-19 15:43:24,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 867 states, 792 states have (on average 1.1237373737373737) internal successors, (890), 793 states have internal predecessors, (890), 50 states have call successors, (50), 24 states have call predecessors, (50), 24 states have return successors, (50), 49 states have call predecessors, (50), 50 states have call successors, (50) [2023-12-19 15:43:24,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 990 transitions. [2023-12-19 15:43:24,769 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 990 transitions. Word has length 236 [2023-12-19 15:43:24,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:43:24,769 INFO L495 AbstractCegarLoop]: Abstraction has 867 states and 990 transitions. [2023-12-19 15:43:24,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:43:24,769 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 990 transitions. [2023-12-19 15:43:24,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2023-12-19 15:43:24,772 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:43:24,772 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:43:24,779 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-19 15:43:24,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:43:24,980 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:43:24,980 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:43:24,981 INFO L85 PathProgramCache]: Analyzing trace with hash 493987009, now seen corresponding path program 1 times [2023-12-19 15:43:24,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:43:24,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141963186] [2023-12-19 15:43:24,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:43:24,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:43:25,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:25,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:43:25,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:25,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:43:25,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:25,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:43:25,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:25,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:43:25,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:25,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:43:25,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:25,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:43:25,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:25,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:43:25,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:25,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:43:25,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:25,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:43:25,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:25,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:43:25,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:25,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:43:25,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:25,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:43:25,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:25,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:43:25,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:25,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:43:25,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:25,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-19 15:43:25,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:25,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-19 15:43:25,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:25,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-19 15:43:25,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:25,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-19 15:43:25,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:25,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-19 15:43:25,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:25,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-19 15:43:25,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:25,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-12-19 15:43:25,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:25,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-12-19 15:43:25,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:25,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-19 15:43:25,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:25,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-19 15:43:25,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:25,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-12-19 15:43:25,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:25,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-12-19 15:43:25,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:25,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-19 15:43:25,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:25,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-19 15:43:25,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:25,702 INFO L134 CoverageAnalysis]: Checked inductivity of 1566 backedges. 10 proven. 31 refuted. 0 times theorem prover too weak. 1525 trivial. 0 not checked. [2023-12-19 15:43:25,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:43:25,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141963186] [2023-12-19 15:43:25,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141963186] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 15:43:25,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1596979486] [2023-12-19 15:43:25,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:43:25,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:43:25,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:43:25,704 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:43:25,707 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-19 15:43:25,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:25,982 INFO L262 TraceCheckSpWp]: Trace formula consists of 844 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-19 15:43:25,992 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:43:26,061 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 40 treesize of output 28 [2023-12-19 15:43:26,064 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 32 treesize of output 20 [2023-12-19 15:43:26,079 INFO L134 CoverageAnalysis]: Checked inductivity of 1566 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 1543 trivial. 0 not checked. [2023-12-19 15:43:26,079 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:43:26,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1596979486] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:43:26,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 15:43:26,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [13] total 14 [2023-12-19 15:43:26,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3791842] [2023-12-19 15:43:26,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:43:26,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 15:43:26,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:43:26,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 15:43:26,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-12-19 15:43:26,080 INFO L87 Difference]: Start difference. First operand 867 states and 990 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:43:26,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:43:26,346 INFO L93 Difference]: Finished difference Result 1553 states and 1768 transitions. [2023-12-19 15:43:26,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 15:43:26,346 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 236 [2023-12-19 15:43:26,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:43:26,348 INFO L225 Difference]: With dead ends: 1553 [2023-12-19 15:43:26,348 INFO L226 Difference]: Without dead ends: 1095 [2023-12-19 15:43:26,349 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 292 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2023-12-19 15:43:26,349 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 84 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 15:43:26,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 552 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 15:43:26,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1095 states. [2023-12-19 15:43:26,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1095 to 859. [2023-12-19 15:43:26,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 859 states, 784 states have (on average 1.121173469387755) internal successors, (879), 785 states have internal predecessors, (879), 50 states have call successors, (50), 24 states have call predecessors, (50), 24 states have return successors, (50), 49 states have call predecessors, (50), 50 states have call successors, (50) [2023-12-19 15:43:26,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 859 states to 859 states and 979 transitions. [2023-12-19 15:43:26,451 INFO L78 Accepts]: Start accepts. Automaton has 859 states and 979 transitions. Word has length 236 [2023-12-19 15:43:26,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:43:26,451 INFO L495 AbstractCegarLoop]: Abstraction has 859 states and 979 transitions. [2023-12-19 15:43:26,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:43:26,452 INFO L276 IsEmpty]: Start isEmpty. Operand 859 states and 979 transitions. [2023-12-19 15:43:26,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2023-12-19 15:43:26,453 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:43:26,453 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:43:26,463 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-19 15:43:26,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:43:26,661 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:43:26,661 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:43:26,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1125138241, now seen corresponding path program 1 times [2023-12-19 15:43:26,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:43:26,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441679622] [2023-12-19 15:43:26,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:43:26,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:43:26,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:27,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:43:27,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:27,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:43:27,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:27,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:43:27,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:27,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:43:27,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:27,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:43:27,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:27,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:43:27,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:27,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:43:27,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:27,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:43:27,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:27,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:43:27,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:27,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:43:27,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:27,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:43:27,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:27,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:43:27,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:27,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:43:27,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:27,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:43:27,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:27,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-19 15:43:27,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:27,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-19 15:43:27,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:27,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-19 15:43:27,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:27,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-19 15:43:27,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:27,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-19 15:43:27,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:27,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-19 15:43:27,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:27,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-12-19 15:43:27,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:27,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-12-19 15:43:27,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:27,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-19 15:43:27,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:27,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-19 15:43:27,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:27,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-12-19 15:43:27,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:27,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-12-19 15:43:27,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:27,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-19 15:43:27,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:27,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-19 15:43:27,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:27,293 INFO L134 CoverageAnalysis]: Checked inductivity of 1566 backedges. 10 proven. 31 refuted. 0 times theorem prover too weak. 1525 trivial. 0 not checked. [2023-12-19 15:43:27,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:43:27,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441679622] [2023-12-19 15:43:27,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441679622] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 15:43:27,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [242795262] [2023-12-19 15:43:27,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:43:27,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:43:27,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:43:27,294 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:43:27,299 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-19 15:43:27,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:27,563 INFO L262 TraceCheckSpWp]: Trace formula consists of 844 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-19 15:43:27,567 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:43:27,606 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 25 treesize of output 17 [2023-12-19 15:43:27,608 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 21 treesize of output 13 [2023-12-19 15:43:27,623 INFO L134 CoverageAnalysis]: Checked inductivity of 1566 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1556 trivial. 0 not checked. [2023-12-19 15:43:27,623 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:43:27,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [242795262] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:43:27,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 15:43:27,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2023-12-19 15:43:27,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991997808] [2023-12-19 15:43:27,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:43:27,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 15:43:27,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:43:27,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 15:43:27,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2023-12-19 15:43:27,624 INFO L87 Difference]: Start difference. First operand 859 states and 979 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:43:27,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:43:27,852 INFO L93 Difference]: Finished difference Result 1548 states and 1747 transitions. [2023-12-19 15:43:27,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 15:43:27,853 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 236 [2023-12-19 15:43:27,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:43:27,854 INFO L225 Difference]: With dead ends: 1548 [2023-12-19 15:43:27,854 INFO L226 Difference]: Without dead ends: 1058 [2023-12-19 15:43:27,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 293 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2023-12-19 15:43:27,855 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 112 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 15:43:27,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 485 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 15:43:27,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1058 states. [2023-12-19 15:43:27,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1058 to 862. [2023-12-19 15:43:27,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 862 states, 787 states have (on average 1.1207115628970774) internal successors, (882), 788 states have internal predecessors, (882), 50 states have call successors, (50), 24 states have call predecessors, (50), 24 states have return successors, (50), 49 states have call predecessors, (50), 50 states have call successors, (50) [2023-12-19 15:43:27,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 862 states to 862 states and 982 transitions. [2023-12-19 15:43:27,956 INFO L78 Accepts]: Start accepts. Automaton has 862 states and 982 transitions. Word has length 236 [2023-12-19 15:43:27,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:43:27,956 INFO L495 AbstractCegarLoop]: Abstraction has 862 states and 982 transitions. [2023-12-19 15:43:27,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:43:27,956 INFO L276 IsEmpty]: Start isEmpty. Operand 862 states and 982 transitions. [2023-12-19 15:43:27,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2023-12-19 15:43:27,957 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:43:27,958 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:43:27,965 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-19 15:43:28,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:43:28,162 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:43:28,162 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:43:28,162 INFO L85 PathProgramCache]: Analyzing trace with hash -2146206595, now seen corresponding path program 1 times [2023-12-19 15:43:28,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:43:28,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779335931] [2023-12-19 15:43:28,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:43:28,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:43:28,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:28,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:43:28,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:28,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:43:28,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:28,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:43:28,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:28,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:43:28,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:28,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:43:28,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:28,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:43:28,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:28,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:43:28,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:28,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:43:28,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:28,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:43:28,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:28,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:43:28,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:28,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:43:28,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:28,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:43:28,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:28,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:43:28,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:28,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:43:28,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:28,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-19 15:43:28,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:28,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-19 15:43:28,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:28,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-19 15:43:28,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:28,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-19 15:43:28,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:28,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-19 15:43:28,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:28,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-19 15:43:28,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:28,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-12-19 15:43:28,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:28,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-12-19 15:43:28,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:28,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-19 15:43:28,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:28,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-19 15:43:28,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:28,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-12-19 15:43:28,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:28,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-12-19 15:43:28,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:28,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-19 15:43:28,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:28,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-19 15:43:28,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:28,706 INFO L134 CoverageAnalysis]: Checked inductivity of 1566 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 1543 trivial. 0 not checked. [2023-12-19 15:43:28,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:43:28,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779335931] [2023-12-19 15:43:28,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779335931] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:43:28,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:43:28,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 15:43:28,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726523922] [2023-12-19 15:43:28,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:43:28,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 15:43:28,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:43:28,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 15:43:28,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 15:43:28,708 INFO L87 Difference]: Start difference. First operand 862 states and 982 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 7 states have internal predecessors, (83), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:43:29,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:43:29,033 INFO L93 Difference]: Finished difference Result 1361 states and 1546 transitions. [2023-12-19 15:43:29,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 15:43:29,033 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 7 states have internal predecessors, (83), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 236 [2023-12-19 15:43:29,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:43:29,035 INFO L225 Difference]: With dead ends: 1361 [2023-12-19 15:43:29,035 INFO L226 Difference]: Without dead ends: 874 [2023-12-19 15:43:29,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-12-19 15:43:29,036 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 120 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 15:43:29,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 625 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 15:43:29,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 874 states. [2023-12-19 15:43:29,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 874 to 789. [2023-12-19 15:43:29,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 789 states, 714 states have (on average 1.112044817927171) internal successors, (794), 715 states have internal predecessors, (794), 50 states have call successors, (50), 24 states have call predecessors, (50), 24 states have return successors, (50), 49 states have call predecessors, (50), 50 states have call successors, (50) [2023-12-19 15:43:29,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 894 transitions. [2023-12-19 15:43:29,140 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 894 transitions. Word has length 236 [2023-12-19 15:43:29,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:43:29,140 INFO L495 AbstractCegarLoop]: Abstraction has 789 states and 894 transitions. [2023-12-19 15:43:29,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 7 states have internal predecessors, (83), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:43:29,140 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 894 transitions. [2023-12-19 15:43:29,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2023-12-19 15:43:29,141 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:43:29,142 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:43:29,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2023-12-19 15:43:29,142 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:43:29,142 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:43:29,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1779863873, now seen corresponding path program 1 times [2023-12-19 15:43:29,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:43:29,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916401608] [2023-12-19 15:43:29,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:43:29,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:43:29,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:29,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:43:29,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:29,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:43:29,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:29,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:43:29,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:29,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:43:29,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:29,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:43:29,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:29,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:43:29,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:29,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:43:29,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:29,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:43:29,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:29,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:43:29,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:29,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:43:29,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:29,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:43:29,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:29,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:43:29,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:29,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:43:29,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:29,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:43:29,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:29,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-19 15:43:29,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:29,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-19 15:43:29,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:29,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-19 15:43:29,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:29,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-19 15:43:29,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:29,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-19 15:43:29,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:29,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-19 15:43:29,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:29,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-12-19 15:43:29,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:29,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-12-19 15:43:29,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:29,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-19 15:43:29,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:29,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-19 15:43:29,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:29,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-12-19 15:43:29,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:29,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-12-19 15:43:29,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:29,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-19 15:43:29,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:29,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-19 15:43:29,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:29,694 INFO L134 CoverageAnalysis]: Checked inductivity of 1566 backedges. 23 proven. 18 refuted. 0 times theorem prover too weak. 1525 trivial. 0 not checked. [2023-12-19 15:43:29,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:43:29,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916401608] [2023-12-19 15:43:29,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916401608] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 15:43:29,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2097013703] [2023-12-19 15:43:29,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:43:29,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:43:29,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:43:29,695 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:43:29,697 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-19 15:43:29,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:29,980 INFO L262 TraceCheckSpWp]: Trace formula consists of 844 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-19 15:43:29,985 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:43:30,010 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 39 treesize of output 27 [2023-12-19 15:43:30,012 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 31 treesize of output 19 [2023-12-19 15:43:30,024 INFO L134 CoverageAnalysis]: Checked inductivity of 1566 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 1543 trivial. 0 not checked. [2023-12-19 15:43:30,025 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:43:30,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2097013703] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:43:30,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 15:43:30,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 12 [2023-12-19 15:43:30,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646956346] [2023-12-19 15:43:30,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:43:30,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 15:43:30,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:43:30,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 15:43:30,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-12-19 15:43:30,026 INFO L87 Difference]: Start difference. First operand 789 states and 894 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:43:30,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:43:30,295 INFO L93 Difference]: Finished difference Result 1341 states and 1507 transitions. [2023-12-19 15:43:30,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 15:43:30,296 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 236 [2023-12-19 15:43:30,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:43:30,297 INFO L225 Difference]: With dead ends: 1341 [2023-12-19 15:43:30,297 INFO L226 Difference]: Without dead ends: 927 [2023-12-19 15:43:30,298 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 292 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2023-12-19 15:43:30,298 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 82 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 15:43:30,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 450 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 15:43:30,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 927 states. [2023-12-19 15:43:30,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 927 to 756. [2023-12-19 15:43:30,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 756 states, 681 states have (on average 1.1130690161527166) internal successors, (758), 682 states have internal predecessors, (758), 50 states have call successors, (50), 24 states have call predecessors, (50), 24 states have return successors, (50), 49 states have call predecessors, (50), 50 states have call successors, (50) [2023-12-19 15:43:30,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 756 states to 756 states and 858 transitions. [2023-12-19 15:43:30,403 INFO L78 Accepts]: Start accepts. Automaton has 756 states and 858 transitions. Word has length 236 [2023-12-19 15:43:30,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:43:30,403 INFO L495 AbstractCegarLoop]: Abstraction has 756 states and 858 transitions. [2023-12-19 15:43:30,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:43:30,403 INFO L276 IsEmpty]: Start isEmpty. Operand 756 states and 858 transitions. [2023-12-19 15:43:30,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2023-12-19 15:43:30,404 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:43:30,405 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:43:30,414 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-19 15:43:30,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:43:30,615 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:43:30,615 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:43:30,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1802496127, now seen corresponding path program 1 times [2023-12-19 15:43:30,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:43:30,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623838398] [2023-12-19 15:43:30,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:43:30,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:43:30,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:31,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:43:31,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:31,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:43:31,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:31,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:43:31,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:31,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:43:31,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:31,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:43:31,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:31,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:43:31,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:31,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:43:31,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:31,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:43:31,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:31,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:43:31,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:31,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:43:31,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:31,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:43:31,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:31,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:43:31,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:31,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:43:31,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:31,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:43:31,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:31,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-19 15:43:31,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:31,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-19 15:43:31,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:31,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-19 15:43:31,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:31,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-19 15:43:31,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:31,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-19 15:43:31,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:31,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-19 15:43:31,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:31,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-12-19 15:43:31,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:31,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-12-19 15:43:31,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:31,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-19 15:43:31,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:31,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-19 15:43:31,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:31,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-12-19 15:43:31,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:31,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-12-19 15:43:31,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:31,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-19 15:43:31,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:31,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-19 15:43:31,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:31,245 INFO L134 CoverageAnalysis]: Checked inductivity of 1566 backedges. 10 proven. 31 refuted. 0 times theorem prover too weak. 1525 trivial. 0 not checked. [2023-12-19 15:43:31,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:43:31,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623838398] [2023-12-19 15:43:31,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623838398] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 15:43:31,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1663022401] [2023-12-19 15:43:31,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:43:31,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:43:31,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:43:31,247 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:43:31,264 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-19 15:43:31,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:31,547 INFO L262 TraceCheckSpWp]: Trace formula consists of 844 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-19 15:43:31,551 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:43:31,619 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 39 treesize of output 27 [2023-12-19 15:43:31,621 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 31 treesize of output 19 [2023-12-19 15:43:31,637 INFO L134 CoverageAnalysis]: Checked inductivity of 1566 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 1543 trivial. 0 not checked. [2023-12-19 15:43:31,637 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:43:31,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1663022401] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:43:31,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 15:43:31,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 13 [2023-12-19 15:43:31,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207416552] [2023-12-19 15:43:31,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:43:31,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 15:43:31,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:43:31,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 15:43:31,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-12-19 15:43:31,639 INFO L87 Difference]: Start difference. First operand 756 states and 858 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:43:31,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:43:31,867 INFO L93 Difference]: Finished difference Result 1231 states and 1383 transitions. [2023-12-19 15:43:31,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 15:43:31,868 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 236 [2023-12-19 15:43:31,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:43:31,869 INFO L225 Difference]: With dead ends: 1231 [2023-12-19 15:43:31,869 INFO L226 Difference]: Without dead ends: 850 [2023-12-19 15:43:31,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 292 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2023-12-19 15:43:31,870 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 81 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 15:43:31,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 487 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 15:43:31,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states. [2023-12-19 15:43:31,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 753. [2023-12-19 15:43:31,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 753 states, 678 states have (on average 1.1091445427728615) internal successors, (752), 679 states have internal predecessors, (752), 50 states have call successors, (50), 24 states have call predecessors, (50), 24 states have return successors, (50), 49 states have call predecessors, (50), 50 states have call successors, (50) [2023-12-19 15:43:31,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 753 states to 753 states and 852 transitions. [2023-12-19 15:43:31,975 INFO L78 Accepts]: Start accepts. Automaton has 753 states and 852 transitions. Word has length 236 [2023-12-19 15:43:31,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:43:31,975 INFO L495 AbstractCegarLoop]: Abstraction has 753 states and 852 transitions. [2023-12-19 15:43:31,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:43:31,975 INFO L276 IsEmpty]: Start isEmpty. Operand 753 states and 852 transitions. [2023-12-19 15:43:31,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2023-12-19 15:43:31,977 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:43:31,977 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:43:31,990 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-19 15:43:32,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2023-12-19 15:43:32,185 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:43:32,185 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:43:32,185 INFO L85 PathProgramCache]: Analyzing trace with hash 791378877, now seen corresponding path program 1 times [2023-12-19 15:43:32,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:43:32,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084093442] [2023-12-19 15:43:32,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:43:32,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:43:32,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:32,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:43:32,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:32,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:43:32,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:32,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:43:32,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:32,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:43:32,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:32,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:43:32,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:32,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:43:32,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:32,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:43:32,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:32,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:43:32,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:32,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:43:32,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:32,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:43:32,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:32,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:43:32,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:32,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:43:32,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:32,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:43:32,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:32,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:43:32,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:32,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-19 15:43:32,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:32,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-19 15:43:32,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:32,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-19 15:43:32,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:32,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-19 15:43:32,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:32,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-19 15:43:32,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:32,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-19 15:43:32,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:32,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-12-19 15:43:32,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:32,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-12-19 15:43:32,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:32,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-19 15:43:32,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:32,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-19 15:43:32,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:32,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-12-19 15:43:32,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:32,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-12-19 15:43:32,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:32,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-19 15:43:32,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:32,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-19 15:43:32,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:32,859 INFO L134 CoverageAnalysis]: Checked inductivity of 1566 backedges. 10 proven. 27 refuted. 0 times theorem prover too weak. 1529 trivial. 0 not checked. [2023-12-19 15:43:32,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:43:32,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084093442] [2023-12-19 15:43:32,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084093442] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 15:43:32,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [278460124] [2023-12-19 15:43:32,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:43:32,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:43:32,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:43:32,860 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:43:32,883 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-19 15:43:33,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:33,158 INFO L262 TraceCheckSpWp]: Trace formula consists of 844 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-19 15:43:33,162 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:43:33,280 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 58 treesize of output 46 [2023-12-19 15:43:33,282 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 50 treesize of output 38 [2023-12-19 15:43:33,301 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 44 treesize of output 32 [2023-12-19 15:43:33,361 INFO L134 CoverageAnalysis]: Checked inductivity of 1566 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 1543 trivial. 0 not checked. [2023-12-19 15:43:33,361 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:43:33,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [278460124] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:43:33,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 15:43:33,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 13 [2023-12-19 15:43:33,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190246262] [2023-12-19 15:43:33,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:43:33,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 15:43:33,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:43:33,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 15:43:33,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-12-19 15:43:33,363 INFO L87 Difference]: Start difference. First operand 753 states and 852 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 7 states have internal predecessors, (83), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:43:33,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:43:33,670 INFO L93 Difference]: Finished difference Result 1204 states and 1351 transitions. [2023-12-19 15:43:33,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 15:43:33,671 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 7 states have internal predecessors, (83), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 236 [2023-12-19 15:43:33,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:43:33,672 INFO L225 Difference]: With dead ends: 1204 [2023-12-19 15:43:33,672 INFO L226 Difference]: Without dead ends: 826 [2023-12-19 15:43:33,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 289 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-19 15:43:33,673 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 115 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 15:43:33,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 642 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 15:43:33,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826 states. [2023-12-19 15:43:33,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826 to 756. [2023-12-19 15:43:33,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 756 states, 681 states have (on average 1.1042584434654918) internal successors, (752), 682 states have internal predecessors, (752), 50 states have call successors, (50), 24 states have call predecessors, (50), 24 states have return successors, (50), 49 states have call predecessors, (50), 50 states have call successors, (50) [2023-12-19 15:43:33,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 756 states to 756 states and 852 transitions. [2023-12-19 15:43:33,807 INFO L78 Accepts]: Start accepts. Automaton has 756 states and 852 transitions. Word has length 236 [2023-12-19 15:43:33,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:43:33,807 INFO L495 AbstractCegarLoop]: Abstraction has 756 states and 852 transitions. [2023-12-19 15:43:33,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 7 states have internal predecessors, (83), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:43:33,807 INFO L276 IsEmpty]: Start isEmpty. Operand 756 states and 852 transitions. [2023-12-19 15:43:33,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2023-12-19 15:43:33,809 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:43:33,809 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:43:33,816 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-12-19 15:43:34,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable67 [2023-12-19 15:43:34,009 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:43:34,010 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:43:34,010 INFO L85 PathProgramCache]: Analyzing trace with hash 119060641, now seen corresponding path program 1 times [2023-12-19 15:43:34,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:43:34,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109557766] [2023-12-19 15:43:34,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:43:34,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:43:34,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:34,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:43:34,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:34,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:43:34,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:34,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:43:34,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:34,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:43:34,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:34,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:43:34,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:34,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:43:34,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:34,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:43:34,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:34,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:43:34,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:34,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:43:34,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:34,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:43:34,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:34,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:43:34,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:34,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:43:34,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:34,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:43:34,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:34,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:43:34,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:34,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-19 15:43:34,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:34,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-19 15:43:34,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:34,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-19 15:43:34,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:34,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-19 15:43:34,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:34,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-19 15:43:34,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:34,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-19 15:43:34,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:34,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-12-19 15:43:34,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:34,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-12-19 15:43:34,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:34,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-19 15:43:34,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:34,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-19 15:43:34,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:34,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-12-19 15:43:34,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:34,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-12-19 15:43:34,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:34,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-19 15:43:34,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:34,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-19 15:43:34,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:43:34,638 INFO L134 CoverageAnalysis]: Checked inductivity of 1566 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 1543 trivial. 0 not checked. [2023-12-19 15:43:34,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:43:34,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109557766] [2023-12-19 15:43:34,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109557766] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:43:34,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:43:34,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-19 15:43:34,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313497677] [2023-12-19 15:43:34,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:43:34,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-19 15:43:34,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:43:34,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-19 15:43:34,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2023-12-19 15:43:34,640 INFO L87 Difference]: Start difference. First operand 756 states and 852 transitions. Second operand has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 13 states have internal predecessors, (85), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:43:35,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:43:35,238 INFO L93 Difference]: Finished difference Result 1226 states and 1370 transitions. [2023-12-19 15:43:35,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-19 15:43:35,238 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 13 states have internal predecessors, (85), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 238 [2023-12-19 15:43:35,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:43:35,239 INFO L225 Difference]: With dead ends: 1226 [2023-12-19 15:43:35,239 INFO L226 Difference]: Without dead ends: 0 [2023-12-19 15:43:35,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=436, Unknown=0, NotChecked=0, Total=552 [2023-12-19 15:43:35,240 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 195 mSDsluCounter, 1352 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 1504 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 15:43:35,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 1504 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 15:43:35,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-19 15:43:35,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-19 15:43:35,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 15:43:35,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-19 15:43:35,244 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 238 [2023-12-19 15:43:35,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:43:35,244 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-19 15:43:35,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 13 states have internal predecessors, (85), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 15:43:35,245 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-19 15:43:35,245 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-19 15:43:35,247 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-19 15:43:35,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2023-12-19 15:43:35,248 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. Received shutdown request... [2023-12-19 15:53:49,832 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-19 15:53:49,835 WARN L619 AbstractCegarLoop]: Verification canceled: while PolyPacSimplificationTermWalker was simplifying a ∨-14-46-7-15-7-15-6-15-5-15-4-17-3-17-2-14-4-14-4-14-4-14-4-14-4-14-4-14-4-14-4-14-4-14-4-9-4-5-4-2-3-2-1 term,while PolyPacSimplificationTermWalker was simplifying 7 xjuncts wrt. a ∧-47-46-7-15-7-15-7-15-7-13-7-17-6-17-5-14-5-14-5-14-5-14-5-14-4-14-4-14-4-14-4-14-4-9-4-5-4-2-3-2-1 context. [2023-12-19 15:53:49,836 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-19 15:53:49,841 INFO L257 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2023-12-19 15:53:49,842 INFO L158 Benchmark]: Toolchain (without parser) took 838495.55ms. Allocated memory was 208.7MB in the beginning and 986.7MB in the end (delta: 778.0MB). Free memory was 159.9MB in the beginning and 653.0MB in the end (delta: -493.1MB). Peak memory consumption was 285.6MB. Max. memory is 8.0GB. [2023-12-19 15:53:49,842 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 208.7MB. Free memory is still 155.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-19 15:53:49,842 INFO L158 Benchmark]: CACSL2BoogieTranslator took 218.12ms. Allocated memory is still 208.7MB. Free memory was 159.5MB in the beginning and 145.0MB in the end (delta: 14.5MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2023-12-19 15:53:49,842 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.24ms. Allocated memory is still 208.7MB. Free memory was 145.0MB in the beginning and 140.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-19 15:53:49,842 INFO L158 Benchmark]: Boogie Preprocessor took 71.93ms. Allocated memory is still 208.7MB. Free memory was 140.8MB in the beginning and 135.5MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-19 15:53:49,842 INFO L158 Benchmark]: RCFGBuilder took 604.20ms. Allocated memory was 208.7MB in the beginning and 268.4MB in the end (delta: 59.8MB). Free memory was 135.5MB in the beginning and 220.2MB in the end (delta: -84.6MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. [2023-12-19 15:53:49,842 INFO L158 Benchmark]: TraceAbstraction took 837536.79ms. Allocated memory was 268.4MB in the beginning and 986.7MB in the end (delta: 718.3MB). Free memory was 219.1MB in the beginning and 653.0MB in the end (delta: -433.8MB). Peak memory consumption was 286.0MB. Max. memory is 8.0GB. [2023-12-19 15:53:49,843 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 208.7MB. Free memory is still 155.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 218.12ms. Allocated memory is still 208.7MB. Free memory was 159.5MB in the beginning and 145.0MB in the end (delta: 14.5MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 58.24ms. Allocated memory is still 208.7MB. Free memory was 145.0MB in the beginning and 140.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 71.93ms. Allocated memory is still 208.7MB. Free memory was 140.8MB in the beginning and 135.5MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 604.20ms. Allocated memory was 208.7MB in the beginning and 268.4MB in the end (delta: 59.8MB). Free memory was 135.5MB in the beginning and 220.2MB in the end (delta: -84.6MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. * TraceAbstraction took 837536.79ms. Allocated memory was 268.4MB in the beginning and 986.7MB in the end (delta: 718.3MB). Free memory was 219.1MB in the beginning and 653.0MB in the end (delta: -433.8MB). Peak memory consumption was 286.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction) Toolchain cancelled while PolyPacSimplificationTermWalker was simplifying a ∨-6-25-2-18-2-13-4-11-4-14-3-14-2-14-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-34-22-6-18-14-14-14-14-4-14-3-14-2-14-1 context. RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown