/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-71.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 15:40:17,085 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 15:40:17,159 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 15:40:17,162 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 15:40:17,163 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 15:40:17,193 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 15:40:17,194 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 15:40:17,194 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 15:40:17,195 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 15:40:17,198 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 15:40:17,198 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 15:40:17,198 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 15:40:17,198 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 15:40:17,199 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 15:40:17,199 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 15:40:17,199 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 15:40:17,200 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 15:40:17,200 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 15:40:17,200 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 15:40:17,200 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 15:40:17,200 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 15:40:17,200 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 15:40:17,201 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 15:40:17,201 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 15:40:17,201 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 15:40:17,201 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 15:40:17,201 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 15:40:17,201 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 15:40:17,202 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 15:40:17,202 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 15:40:17,203 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 15:40:17,203 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 15:40:17,203 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 15:40:17,203 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 15:40:17,203 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 15:40:17,203 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 15:40:17,203 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 15:40:17,203 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 15:40:17,203 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 15:40:17,204 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 15:40:17,204 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 15:40:17,204 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 15:40:17,204 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 15:40:17,204 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 15:40:17,382 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 15:40:17,399 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 15:40:17,403 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 15:40:17,404 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 15:40:17,404 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 15:40:17,405 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-71.i [2023-12-19 15:40:18,498 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 15:40:18,651 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 15:40:18,651 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-71.i [2023-12-19 15:40:18,657 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b6dbc080/03f807540cad4e70a7ffafc724502e25/FLAGeeb4e4d60 [2023-12-19 15:40:18,671 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b6dbc080/03f807540cad4e70a7ffafc724502e25 [2023-12-19 15:40:18,673 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 15:40:18,674 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 15:40:18,675 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 15:40:18,675 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 15:40:18,680 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 15:40:18,681 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 03:40:18" (1/1) ... [2023-12-19 15:40:18,681 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@226f9681 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:40:18, skipping insertion in model container [2023-12-19 15:40:18,682 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 03:40:18" (1/1) ... [2023-12-19 15:40:18,714 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 15:40:18,838 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-71.i[916,929] [2023-12-19 15:40:18,917 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 15:40:18,931 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 15:40:18,941 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-71.i[916,929] [2023-12-19 15:40:18,966 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 15:40:18,977 INFO L206 MainTranslator]: Completed translation [2023-12-19 15:40:18,977 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:40:18 WrapperNode [2023-12-19 15:40:18,977 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 15:40:18,978 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 15:40:18,978 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 15:40:18,978 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 15:40:18,983 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:40:18" (1/1) ... [2023-12-19 15:40:19,005 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:40:18" (1/1) ... [2023-12-19 15:40:19,038 INFO L138 Inliner]: procedures = 26, calls = 182, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 527 [2023-12-19 15:40:19,039 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 15:40:19,039 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 15:40:19,039 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 15:40:19,040 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 15:40:19,054 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:40:18" (1/1) ... [2023-12-19 15:40:19,055 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:40:18" (1/1) ... [2023-12-19 15:40:19,059 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:40:18" (1/1) ... [2023-12-19 15:40:19,086 INFO L175 MemorySlicer]: Split 138 memory accesses to 15 slices as follows [2, 11, 6, 22, 22, 22, 6, 8, 5, 3, 8, 7, 3, 6, 7]. 16 percent of accesses are in the largest equivalence class. The 16 initializations are split as follows [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]. The 18 writes are split as follows [0, 4, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1]. [2023-12-19 15:40:19,087 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:40:18" (1/1) ... [2023-12-19 15:40:19,087 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:40:18" (1/1) ... [2023-12-19 15:40:19,098 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:40:18" (1/1) ... [2023-12-19 15:40:19,101 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:40:18" (1/1) ... [2023-12-19 15:40:19,103 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:40:18" (1/1) ... [2023-12-19 15:40:19,105 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:40:18" (1/1) ... [2023-12-19 15:40:19,109 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 15:40:19,110 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 15:40:19,110 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 15:40:19,110 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 15:40:19,111 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:40:18" (1/1) ... [2023-12-19 15:40:19,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 15:40:19,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:40:19,157 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 15:40:19,176 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 15:40:19,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 15:40:19,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-19 15:40:19,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-19 15:40:19,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-12-19 15:40:19,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-12-19 15:40:19,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-12-19 15:40:19,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-12-19 15:40:19,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-12-19 15:40:19,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-12-19 15:40:19,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-12-19 15:40:19,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-12-19 15:40:19,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-12-19 15:40:19,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-12-19 15:40:19,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2023-12-19 15:40:19,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2023-12-19 15:40:19,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2023-12-19 15:40:19,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-19 15:40:19,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-19 15:40:19,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-12-19 15:40:19,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-12-19 15:40:19,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-12-19 15:40:19,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-12-19 15:40:19,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-12-19 15:40:19,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-12-19 15:40:19,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-12-19 15:40:19,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-12-19 15:40:19,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-12-19 15:40:19,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-12-19 15:40:19,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2023-12-19 15:40:19,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2023-12-19 15:40:19,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2023-12-19 15:40:19,197 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-19 15:40:19,197 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-19 15:40:19,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 15:40:19,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-19 15:40:19,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-19 15:40:19,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-19 15:40:19,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-12-19 15:40:19,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-12-19 15:40:19,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-12-19 15:40:19,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-12-19 15:40:19,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-12-19 15:40:19,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-12-19 15:40:19,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-12-19 15:40:19,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-12-19 15:40:19,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-12-19 15:40:19,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-12-19 15:40:19,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-12-19 15:40:19,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 15:40:19,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 15:40:19,308 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 15:40:19,310 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 15:40:19,742 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 15:40:19,784 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 15:40:19,784 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-19 15:40:19,785 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 03:40:19 BoogieIcfgContainer [2023-12-19 15:40:19,785 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 15:40:19,786 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 15:40:19,786 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 15:40:19,789 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 15:40:19,789 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 03:40:18" (1/3) ... [2023-12-19 15:40:19,789 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13db1970 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 03:40:19, skipping insertion in model container [2023-12-19 15:40:19,789 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:40:18" (2/3) ... [2023-12-19 15:40:19,789 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13db1970 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 03:40:19, skipping insertion in model container [2023-12-19 15:40:19,790 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 03:40:19" (3/3) ... [2023-12-19 15:40:19,790 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-71.i [2023-12-19 15:40:19,802 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 15:40:19,803 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-19 15:40:19,833 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 15:40:19,838 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;@3082f96f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 15:40:19,838 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-19 15:40:19,841 INFO L276 IsEmpty]: Start isEmpty. Operand has 98 states, 76 states have (on average 1.4210526315789473) internal successors, (108), 77 states have internal predecessors, (108), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-19 15:40:19,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-19 15:40:19,851 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:40:19,852 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:40:19,852 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:40:19,857 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:40:19,857 INFO L85 PathProgramCache]: Analyzing trace with hash 206066625, now seen corresponding path program 1 times [2023-12-19 15:40:19,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:40:19,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706980734] [2023-12-19 15:40:19,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:40:19,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:40:19,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:20,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:40:20,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:20,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:40:20,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:20,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:40:20,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:20,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:40:20,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:20,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:40:20,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:20,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:40:20,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:20,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:40:20,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:20,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:40:20,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:20,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:40:20,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:20,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:40:20,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:20,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:40:20,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:20,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:40:20,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:20,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:40:20,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:20,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:40:20,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:20,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:40:20,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:20,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:40:20,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:20,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:40:20,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:20,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:40:20,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:20,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:40:20,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:20,249 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-19 15:40:20,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:40:20,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706980734] [2023-12-19 15:40:20,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706980734] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:40:20,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:40:20,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 15:40:20,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256315385] [2023-12-19 15:40:20,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:40:20,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-19 15:40:20,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:40:20,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-19 15:40:20,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 15:40:20,294 INFO L87 Difference]: Start difference. First operand has 98 states, 76 states have (on average 1.4210526315789473) internal successors, (108), 77 states have internal predecessors, (108), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-19 15:40:20,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:40:20,347 INFO L93 Difference]: Finished difference Result 193 states and 309 transitions. [2023-12-19 15:40:20,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-19 15:40:20,349 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 139 [2023-12-19 15:40:20,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:40:20,356 INFO L225 Difference]: With dead ends: 193 [2023-12-19 15:40:20,356 INFO L226 Difference]: Without dead ends: 96 [2023-12-19 15:40:20,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 59 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 15:40:20,363 INFO L413 NwaCegarLoop]: 135 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, 135 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 15:40:20,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 135 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 15:40:20,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2023-12-19 15:40:20,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2023-12-19 15:40:20,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 75 states have (on average 1.3466666666666667) internal successors, (101), 75 states have internal predecessors, (101), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-19 15:40:20,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 139 transitions. [2023-12-19 15:40:20,408 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 139 transitions. Word has length 139 [2023-12-19 15:40:20,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:40:20,408 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 139 transitions. [2023-12-19 15:40:20,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-19 15:40:20,409 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 139 transitions. [2023-12-19 15:40:20,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-19 15:40:20,418 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:40:20,418 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:40:20,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-19 15:40:20,421 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:40:20,421 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:40:20,421 INFO L85 PathProgramCache]: Analyzing trace with hash 2021636071, now seen corresponding path program 1 times [2023-12-19 15:40:20,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:40:20,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378365327] [2023-12-19 15:40:20,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:40:20,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:40:20,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:20,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:40:20,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:20,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:40:20,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:20,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:40:20,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:20,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:40:20,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:20,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:40:20,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:20,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:40:20,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:20,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:40:20,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:20,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:40:20,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:20,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:40:20,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:20,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:40:20,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:20,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:40:20,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:20,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:40:20,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:20,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:40:20,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:20,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:40:20,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:20,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:40:20,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:20,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:40:20,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:20,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:40:20,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:20,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:40:20,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:20,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:40:20,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:20,712 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-19 15:40:20,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:40:20,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378365327] [2023-12-19 15:40:20,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378365327] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:40:20,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:40:20,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 15:40:20,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213467890] [2023-12-19 15:40:20,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:40:20,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 15:40:20,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:40:20,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 15:40:20,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 15:40:20,719 INFO L87 Difference]: Start difference. First operand 96 states and 139 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:40:20,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:40:20,786 INFO L93 Difference]: Finished difference Result 199 states and 288 transitions. [2023-12-19 15:40:20,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 15:40:20,787 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 139 [2023-12-19 15:40:20,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:40:20,791 INFO L225 Difference]: With dead ends: 199 [2023-12-19 15:40:20,791 INFO L226 Difference]: Without dead ends: 104 [2023-12-19 15:40:20,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 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 15:40:20,794 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 12 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 393 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 15:40:20,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 393 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 15:40:20,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2023-12-19 15:40:20,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 98. [2023-12-19 15:40:20,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 77 states have (on average 1.3376623376623376) internal successors, (103), 77 states have internal predecessors, (103), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-19 15:40:20,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 141 transitions. [2023-12-19 15:40:20,809 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 141 transitions. Word has length 139 [2023-12-19 15:40:20,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:40:20,810 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 141 transitions. [2023-12-19 15:40:20,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:40:20,810 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 141 transitions. [2023-12-19 15:40:20,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-19 15:40:20,812 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:40:20,812 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:40:20,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-19 15:40:20,813 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:40:20,813 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:40:20,813 INFO L85 PathProgramCache]: Analyzing trace with hash 2078894373, now seen corresponding path program 1 times [2023-12-19 15:40:20,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:40:20,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118252429] [2023-12-19 15:40:20,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:40:20,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:40:20,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:20,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:40:20,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:20,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:40:20,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:20,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:40:20,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:20,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:40:20,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:20,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:40:20,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:20,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:40:20,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:20,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:40:20,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:20,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:40:20,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:20,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:40:20,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:20,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:40:20,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:20,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:40:20,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:20,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:40:20,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:20,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:40:20,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:20,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:40:20,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:20,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:40:20,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:20,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:40:20,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:20,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:40:20,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:20,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:40:20,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:20,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:40:21,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:21,003 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-19 15:40:21,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:40:21,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118252429] [2023-12-19 15:40:21,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118252429] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:40:21,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:40:21,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 15:40:21,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949333014] [2023-12-19 15:40:21,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:40:21,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 15:40:21,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:40:21,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 15:40:21,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 15:40:21,007 INFO L87 Difference]: Start difference. First operand 98 states and 141 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:40:21,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:40:21,045 INFO L93 Difference]: Finished difference Result 199 states and 286 transitions. [2023-12-19 15:40:21,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 15:40:21,046 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 139 [2023-12-19 15:40:21,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:40:21,048 INFO L225 Difference]: With dead ends: 199 [2023-12-19 15:40:21,048 INFO L226 Difference]: Without dead ends: 102 [2023-12-19 15:40:21,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 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 15:40:21,054 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 3 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 394 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 15:40:21,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 394 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 15:40:21,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2023-12-19 15:40:21,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 100. [2023-12-19 15:40:21,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 79 states have (on average 1.3291139240506329) internal successors, (105), 79 states have internal predecessors, (105), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-19 15:40:21,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 143 transitions. [2023-12-19 15:40:21,063 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 143 transitions. Word has length 139 [2023-12-19 15:40:21,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:40:21,063 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 143 transitions. [2023-12-19 15:40:21,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:40:21,064 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 143 transitions. [2023-12-19 15:40:21,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-19 15:40:21,065 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:40:21,065 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:40:21,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-19 15:40:21,065 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:40:21,065 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:40:21,066 INFO L85 PathProgramCache]: Analyzing trace with hash 2078953955, now seen corresponding path program 1 times [2023-12-19 15:40:21,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:40:21,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294625090] [2023-12-19 15:40:21,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:40:21,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:40:21,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:21,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:40:21,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:21,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:40:21,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:21,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:40:21,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:21,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:40:21,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:21,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:40:21,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:21,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:40:21,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:21,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:40:21,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:21,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:40:21,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:21,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:40:21,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:21,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:40:21,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:21,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:40:21,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:21,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:40:21,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:21,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:40:21,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:21,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:40:21,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:21,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:40:21,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:21,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:40:21,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:21,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:40:21,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:21,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:40:21,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:21,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:40:21,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:21,395 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-19 15:40:21,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:40:21,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294625090] [2023-12-19 15:40:21,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294625090] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:40:21,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:40:21,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 15:40:21,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988338897] [2023-12-19 15:40:21,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:40:21,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 15:40:21,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:40:21,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 15:40:21,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:40:21,397 INFO L87 Difference]: Start difference. First operand 100 states and 143 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:40:21,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:40:21,504 INFO L93 Difference]: Finished difference Result 271 states and 385 transitions. [2023-12-19 15:40:21,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 15:40:21,504 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 139 [2023-12-19 15:40:21,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:40:21,506 INFO L225 Difference]: With dead ends: 271 [2023-12-19 15:40:21,506 INFO L226 Difference]: Without dead ends: 172 [2023-12-19 15:40:21,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 40 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 15:40:21,511 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 124 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 15:40:21,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 622 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 15:40:21,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2023-12-19 15:40:21,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 169. [2023-12-19 15:40:21,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 137 states have (on average 1.3284671532846715) internal successors, (182), 138 states have internal predecessors, (182), 29 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-19 15:40:21,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 240 transitions. [2023-12-19 15:40:21,536 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 240 transitions. Word has length 139 [2023-12-19 15:40:21,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:40:21,537 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 240 transitions. [2023-12-19 15:40:21,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:40:21,537 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 240 transitions. [2023-12-19 15:40:21,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-19 15:40:21,538 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:40:21,538 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:40:21,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-19 15:40:21,538 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:40:21,539 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:40:21,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1846418358, now seen corresponding path program 1 times [2023-12-19 15:40:21,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:40:21,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983808203] [2023-12-19 15:40:21,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:40:21,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:40:21,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:21,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:40:21,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:21,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:40:21,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:21,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:40:21,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:21,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:40:21,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:21,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:40:21,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:21,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:40:21,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:21,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:40:21,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:21,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:40:21,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:21,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:40:21,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:21,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:40:21,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:21,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:40:21,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:21,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:40:21,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:21,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:40:22,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:22,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:40:22,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:22,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:40:22,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:22,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:40:22,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:22,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:40:22,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:22,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:40:22,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:22,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:40:22,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:22,017 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-19 15:40:22,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:40:22,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983808203] [2023-12-19 15:40:22,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983808203] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:40:22,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:40:22,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 15:40:22,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498425842] [2023-12-19 15:40:22,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:40:22,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 15:40:22,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:40:22,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 15:40:22,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-19 15:40:22,020 INFO L87 Difference]: Start difference. First operand 169 states and 240 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:40:22,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:40:22,209 INFO L93 Difference]: Finished difference Result 496 states and 697 transitions. [2023-12-19 15:40:22,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 15:40:22,210 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 140 [2023-12-19 15:40:22,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:40:22,213 INFO L225 Difference]: With dead ends: 496 [2023-12-19 15:40:22,213 INFO L226 Difference]: Without dead ends: 328 [2023-12-19 15:40:22,214 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-12-19 15:40:22,215 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 236 mSDsluCounter, 578 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 761 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 15:40:22,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 761 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 15:40:22,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2023-12-19 15:40:22,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 256. [2023-12-19 15:40:22,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 206 states have (on average 1.3106796116504855) internal successors, (270), 209 states have internal predecessors, (270), 45 states have call successors, (45), 4 states have call predecessors, (45), 4 states have return successors, (45), 42 states have call predecessors, (45), 45 states have call successors, (45) [2023-12-19 15:40:22,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 360 transitions. [2023-12-19 15:40:22,235 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 360 transitions. Word has length 140 [2023-12-19 15:40:22,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:40:22,236 INFO L495 AbstractCegarLoop]: Abstraction has 256 states and 360 transitions. [2023-12-19 15:40:22,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:40:22,236 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 360 transitions. [2023-12-19 15:40:22,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-19 15:40:22,238 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:40:22,238 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:40:22,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-19 15:40:22,238 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:40:22,238 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:40:22,238 INFO L85 PathProgramCache]: Analyzing trace with hash -1611679062, now seen corresponding path program 1 times [2023-12-19 15:40:22,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:40:22,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188606235] [2023-12-19 15:40:22,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:40:22,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:40:22,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:22,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:40:22,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:22,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:40:22,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:22,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:40:22,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:22,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:40:22,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:22,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:40:22,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:22,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:40:22,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:22,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:40:22,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:22,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:40:22,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:22,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:40:22,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:22,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:40:22,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:22,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:40:22,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:22,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:40:22,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:22,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:40:22,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:22,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:40:22,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:22,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:40:22,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:22,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:40:22,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:22,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:40:22,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:22,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:40:22,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:22,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:40:22,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:22,780 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-19 15:40:22,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:40:22,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188606235] [2023-12-19 15:40:22,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188606235] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:40:22,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:40:22,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 15:40:22,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981528481] [2023-12-19 15:40:22,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:40:22,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 15:40:22,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:40:22,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 15:40:22,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-19 15:40:22,781 INFO L87 Difference]: Start difference. First operand 256 states and 360 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:40:22,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:40:22,951 INFO L93 Difference]: Finished difference Result 520 states and 727 transitions. [2023-12-19 15:40:22,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 15:40:22,952 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 141 [2023-12-19 15:40:22,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:40:22,953 INFO L225 Difference]: With dead ends: 520 [2023-12-19 15:40:22,953 INFO L226 Difference]: Without dead ends: 285 [2023-12-19 15:40:22,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-12-19 15:40:22,954 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 214 mSDsluCounter, 672 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 870 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 15:40:22,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 870 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 15:40:22,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2023-12-19 15:40:22,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 263. [2023-12-19 15:40:22,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 212 states have (on average 1.3018867924528301) internal successors, (276), 215 states have internal predecessors, (276), 45 states have call successors, (45), 5 states have call predecessors, (45), 5 states have return successors, (45), 42 states have call predecessors, (45), 45 states have call successors, (45) [2023-12-19 15:40:22,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 366 transitions. [2023-12-19 15:40:22,971 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 366 transitions. Word has length 141 [2023-12-19 15:40:22,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:40:22,971 INFO L495 AbstractCegarLoop]: Abstraction has 263 states and 366 transitions. [2023-12-19 15:40:22,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:40:22,971 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 366 transitions. [2023-12-19 15:40:22,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-19 15:40:22,973 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:40:22,973 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:40:22,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-19 15:40:22,973 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:40:22,973 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:40:22,974 INFO L85 PathProgramCache]: Analyzing trace with hash -1929151229, now seen corresponding path program 1 times [2023-12-19 15:40:22,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:40:22,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761514933] [2023-12-19 15:40:22,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:40:22,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:40:23,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:23,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:40:23,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:23,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:40:23,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:23,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:40:23,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:23,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:40:23,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:23,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:40:23,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:23,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:40:23,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:23,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:40:23,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:23,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:40:23,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:23,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:40:23,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:23,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:40:23,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:23,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:40:23,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:23,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:40:23,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:23,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:40:23,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:23,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:40:23,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:23,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:40:23,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:23,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:40:23,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:23,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:40:23,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:23,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:40:23,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:23,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:40:23,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:23,186 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-19 15:40:23,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:40:23,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761514933] [2023-12-19 15:40:23,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761514933] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:40:23,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:40:23,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 15:40:23,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479516504] [2023-12-19 15:40:23,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:40:23,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 15:40:23,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:40:23,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 15:40:23,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:40:23,188 INFO L87 Difference]: Start difference. First operand 263 states and 366 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:40:23,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:40:23,232 INFO L93 Difference]: Finished difference Result 517 states and 717 transitions. [2023-12-19 15:40:23,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 15:40:23,233 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 141 [2023-12-19 15:40:23,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:40:23,236 INFO L225 Difference]: With dead ends: 517 [2023-12-19 15:40:23,236 INFO L226 Difference]: Without dead ends: 275 [2023-12-19 15:40:23,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-19 15:40:23,238 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 98 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 558 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 15:40:23,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 558 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 15:40:23,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2023-12-19 15:40:23,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 251. [2023-12-19 15:40:23,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 200 states have (on average 1.28) internal successors, (256), 203 states have internal predecessors, (256), 45 states have call successors, (45), 5 states have call predecessors, (45), 5 states have return successors, (45), 42 states have call predecessors, (45), 45 states have call successors, (45) [2023-12-19 15:40:23,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 346 transitions. [2023-12-19 15:40:23,253 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 346 transitions. Word has length 141 [2023-12-19 15:40:23,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:40:23,253 INFO L495 AbstractCegarLoop]: Abstraction has 251 states and 346 transitions. [2023-12-19 15:40:23,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:40:23,254 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 346 transitions. [2023-12-19 15:40:23,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-19 15:40:23,255 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:40:23,255 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:40:23,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-19 15:40:23,255 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:40:23,255 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:40:23,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1117388278, now seen corresponding path program 1 times [2023-12-19 15:40:23,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:40:23,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001976965] [2023-12-19 15:40:23,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:40:23,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:40:23,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:23,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:40:23,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:23,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:40:23,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:23,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:40:23,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:23,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:40:23,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:23,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:40:23,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:23,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:40:23,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:23,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:40:23,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:23,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:40:23,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:23,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:40:23,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:23,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:40:23,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:23,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:40:23,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:23,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:40:23,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:23,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:40:23,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:23,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:40:23,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:23,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:40:23,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:23,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:40:23,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:23,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:40:23,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:23,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:40:23,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:23,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:40:23,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:23,424 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-19 15:40:23,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:40:23,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001976965] [2023-12-19 15:40:23,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001976965] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:40:23,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:40:23,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 15:40:23,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63009022] [2023-12-19 15:40:23,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:40:23,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 15:40:23,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:40:23,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 15:40:23,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:40:23,425 INFO L87 Difference]: Start difference. First operand 251 states and 346 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:40:23,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:40:23,482 INFO L93 Difference]: Finished difference Result 477 states and 656 transitions. [2023-12-19 15:40:23,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 15:40:23,483 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 142 [2023-12-19 15:40:23,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:40:23,484 INFO L225 Difference]: With dead ends: 477 [2023-12-19 15:40:23,484 INFO L226 Difference]: Without dead ends: 247 [2023-12-19 15:40:23,484 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-19 15:40:23,484 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 88 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 15:40:23,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 593 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 15:40:23,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2023-12-19 15:40:23,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 245. [2023-12-19 15:40:23,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 194 states have (on average 1.268041237113402) internal successors, (246), 197 states have internal predecessors, (246), 45 states have call successors, (45), 5 states have call predecessors, (45), 5 states have return successors, (45), 42 states have call predecessors, (45), 45 states have call successors, (45) [2023-12-19 15:40:23,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 336 transitions. [2023-12-19 15:40:23,510 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 336 transitions. Word has length 142 [2023-12-19 15:40:23,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:40:23,510 INFO L495 AbstractCegarLoop]: Abstraction has 245 states and 336 transitions. [2023-12-19 15:40:23,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:40:23,510 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 336 transitions. [2023-12-19 15:40:23,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-19 15:40:23,511 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:40:23,511 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:40:23,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-19 15:40:23,511 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:40:23,512 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:40:23,512 INFO L85 PathProgramCache]: Analyzing trace with hash -53240966, now seen corresponding path program 1 times [2023-12-19 15:40:23,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:40:23,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758526008] [2023-12-19 15:40:23,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:40:23,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:40:23,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:24,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:40:24,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:24,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:40:24,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:24,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:40:24,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:24,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:40:24,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:24,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:40:24,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:24,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:40:24,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:24,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:40:24,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:24,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:40:24,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:24,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:40:24,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:24,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:40:24,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:24,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:40:24,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:24,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:40:24,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:24,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:40:24,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:24,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:40:24,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:24,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:40:24,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:24,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:40:24,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:24,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:40:24,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:24,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:40:24,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:24,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:40:24,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:24,313 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-19 15:40:24,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:40:24,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758526008] [2023-12-19 15:40:24,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758526008] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:40:24,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:40:24,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-19 15:40:24,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113420422] [2023-12-19 15:40:24,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:40:24,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-19 15:40:24,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:40:24,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-19 15:40:24,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-12-19 15:40:24,315 INFO L87 Difference]: Start difference. First operand 245 states and 336 transitions. Second operand has 14 states, 12 states have (on average 4.166666666666667) internal successors, (50), 13 states have internal predecessors, (50), 6 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 5 states have call predecessors, (19), 6 states have call successors, (19) [2023-12-19 15:40:24,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:40:24,973 INFO L93 Difference]: Finished difference Result 572 states and 778 transitions. [2023-12-19 15:40:24,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-19 15:40:24,973 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 4.166666666666667) internal successors, (50), 13 states have internal predecessors, (50), 6 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 5 states have call predecessors, (19), 6 states have call successors, (19) Word has length 142 [2023-12-19 15:40:24,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:40:24,977 INFO L225 Difference]: With dead ends: 572 [2023-12-19 15:40:24,977 INFO L226 Difference]: Without dead ends: 348 [2023-12-19 15:40:24,978 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=125, Invalid=427, Unknown=0, NotChecked=0, Total=552 [2023-12-19 15:40:24,979 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 458 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 458 SdHoareTripleChecker+Valid, 660 SdHoareTripleChecker+Invalid, 623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-19 15:40:24,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [458 Valid, 660 Invalid, 623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 574 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-19 15:40:24,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2023-12-19 15:40:25,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 296. [2023-12-19 15:40:25,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 241 states have (on average 1.2738589211618256) internal successors, (307), 245 states have internal predecessors, (307), 47 states have call successors, (47), 7 states have call predecessors, (47), 7 states have return successors, (47), 43 states have call predecessors, (47), 47 states have call successors, (47) [2023-12-19 15:40:25,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 401 transitions. [2023-12-19 15:40:25,005 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 401 transitions. Word has length 142 [2023-12-19 15:40:25,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:40:25,005 INFO L495 AbstractCegarLoop]: Abstraction has 296 states and 401 transitions. [2023-12-19 15:40:25,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 4.166666666666667) internal successors, (50), 13 states have internal predecessors, (50), 6 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 5 states have call predecessors, (19), 6 states have call successors, (19) [2023-12-19 15:40:25,005 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 401 transitions. [2023-12-19 15:40:25,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-19 15:40:25,006 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:40:25,006 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:40:25,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-19 15:40:25,006 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:40:25,007 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:40:25,007 INFO L85 PathProgramCache]: Analyzing trace with hash 957876284, now seen corresponding path program 1 times [2023-12-19 15:40:25,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:40:25,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037221299] [2023-12-19 15:40:25,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:40:25,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:40:25,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:25,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:40:25,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:25,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:40:25,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:25,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:40:25,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:25,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:40:25,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:25,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:40:25,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:25,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:40:25,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:25,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:40:25,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:25,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:40:25,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:25,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:40:25,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:25,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:40:25,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:25,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:40:25,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:25,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:40:25,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:25,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:40:25,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:25,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:40:25,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:25,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:40:25,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:25,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:40:25,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:25,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:40:25,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:25,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:40:25,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:25,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:40:25,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:25,367 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-19 15:40:25,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:40:25,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037221299] [2023-12-19 15:40:25,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037221299] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:40:25,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:40:25,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 15:40:25,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494292109] [2023-12-19 15:40:25,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:40:25,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 15:40:25,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:40:25,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 15:40:25,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 15:40:25,368 INFO L87 Difference]: Start difference. First operand 296 states and 401 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:40:25,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:40:25,498 INFO L93 Difference]: Finished difference Result 578 states and 782 transitions. [2023-12-19 15:40:25,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 15:40:25,498 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 142 [2023-12-19 15:40:25,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:40:25,499 INFO L225 Difference]: With dead ends: 578 [2023-12-19 15:40:25,499 INFO L226 Difference]: Without dead ends: 307 [2023-12-19 15:40:25,500 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-12-19 15:40:25,500 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 134 mSDsluCounter, 703 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 871 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 15:40:25,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 871 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 15:40:25,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2023-12-19 15:40:25,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 304. [2023-12-19 15:40:25,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 246 states have (on average 1.2642276422764227) internal successors, (311), 250 states have internal predecessors, (311), 49 states have call successors, (49), 8 states have call predecessors, (49), 8 states have return successors, (49), 45 states have call predecessors, (49), 49 states have call successors, (49) [2023-12-19 15:40:25,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 409 transitions. [2023-12-19 15:40:25,521 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 409 transitions. Word has length 142 [2023-12-19 15:40:25,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:40:25,521 INFO L495 AbstractCegarLoop]: Abstraction has 304 states and 409 transitions. [2023-12-19 15:40:25,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:40:25,522 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 409 transitions. [2023-12-19 15:40:25,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-19 15:40:25,522 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:40:25,523 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:40:25,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-19 15:40:25,523 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:40:25,523 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:40:25,523 INFO L85 PathProgramCache]: Analyzing trace with hash -187254472, now seen corresponding path program 1 times [2023-12-19 15:40:25,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:40:25,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062177563] [2023-12-19 15:40:25,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:40:25,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:40:25,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:25,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:40:25,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:25,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:40:25,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:25,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:40:25,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:25,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:40:25,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:25,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:40:25,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:25,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:40:25,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:25,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:40:25,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:25,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:40:25,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:25,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:40:25,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:25,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:40:25,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:25,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:40:25,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:25,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:40:25,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:25,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:40:25,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:25,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:40:25,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:25,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:40:25,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:25,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:40:25,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:25,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:40:25,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:25,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:40:25,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:25,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:40:25,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:25,809 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-19 15:40:25,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:40:25,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062177563] [2023-12-19 15:40:25,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062177563] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:40:25,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:40:25,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 15:40:25,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990903470] [2023-12-19 15:40:25,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:40:25,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 15:40:25,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:40:25,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 15:40:25,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 15:40:25,810 INFO L87 Difference]: Start difference. First operand 304 states and 409 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:40:25,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:40:25,950 INFO L93 Difference]: Finished difference Result 657 states and 887 transitions. [2023-12-19 15:40:25,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 15:40:25,951 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 142 [2023-12-19 15:40:25,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:40:25,952 INFO L225 Difference]: With dead ends: 657 [2023-12-19 15:40:25,952 INFO L226 Difference]: Without dead ends: 378 [2023-12-19 15:40:25,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2023-12-19 15:40:25,953 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 202 mSDsluCounter, 1014 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 1255 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 15:40:25,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 1255 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 15:40:25,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2023-12-19 15:40:25,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 346. [2023-12-19 15:40:25,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 271 states have (on average 1.2398523985239853) internal successors, (336), 275 states have internal predecessors, (336), 64 states have call successors, (64), 10 states have call predecessors, (64), 10 states have return successors, (64), 60 states have call predecessors, (64), 64 states have call successors, (64) [2023-12-19 15:40:25,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 464 transitions. [2023-12-19 15:40:25,980 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 464 transitions. Word has length 142 [2023-12-19 15:40:25,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:40:25,980 INFO L495 AbstractCegarLoop]: Abstraction has 346 states and 464 transitions. [2023-12-19 15:40:25,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:40:25,980 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 464 transitions. [2023-12-19 15:40:25,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-19 15:40:25,981 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:40:25,981 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:40:25,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-19 15:40:25,982 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:40:25,982 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:40:25,982 INFO L85 PathProgramCache]: Analyzing trace with hash 823862778, now seen corresponding path program 1 times [2023-12-19 15:40:25,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:40:25,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939725141] [2023-12-19 15:40:25,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:40:25,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:40:26,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:26,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:40:26,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:26,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:40:26,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:26,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:40:26,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:26,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:40:26,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:26,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:40:26,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:26,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:40:26,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:26,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:40:26,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:26,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:40:26,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:26,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:40:26,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:26,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:40:26,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:26,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:40:26,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:26,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:40:26,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:26,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:40:26,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:26,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:40:26,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:26,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:40:26,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:26,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:40:26,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:26,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:40:26,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:26,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:40:26,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:26,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:40:26,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:26,449 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-19 15:40:26,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:40:26,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939725141] [2023-12-19 15:40:26,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939725141] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:40:26,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:40:26,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-19 15:40:26,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643108896] [2023-12-19 15:40:26,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:40:26,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-19 15:40:26,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:40:26,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-19 15:40:26,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-12-19 15:40:26,451 INFO L87 Difference]: Start difference. First operand 346 states and 464 transitions. Second operand has 10 states, 9 states have (on average 5.555555555555555) internal successors, (50), 10 states have internal predecessors, (50), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2023-12-19 15:40:26,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:40:26,855 INFO L93 Difference]: Finished difference Result 669 states and 896 transitions. [2023-12-19 15:40:26,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-19 15:40:26,855 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.555555555555555) internal successors, (50), 10 states have internal predecessors, (50), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 142 [2023-12-19 15:40:26,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:40:26,857 INFO L225 Difference]: With dead ends: 669 [2023-12-19 15:40:26,857 INFO L226 Difference]: Without dead ends: 348 [2023-12-19 15:40:26,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2023-12-19 15:40:26,858 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 226 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 15:40:26,858 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 577 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 15:40:26,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2023-12-19 15:40:26,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 346. [2023-12-19 15:40:26,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 270 states have (on average 1.2333333333333334) internal successors, (333), 274 states have internal predecessors, (333), 64 states have call successors, (64), 11 states have call predecessors, (64), 11 states have return successors, (64), 60 states have call predecessors, (64), 64 states have call successors, (64) [2023-12-19 15:40:26,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 461 transitions. [2023-12-19 15:40:26,887 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 461 transitions. Word has length 142 [2023-12-19 15:40:26,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:40:26,887 INFO L495 AbstractCegarLoop]: Abstraction has 346 states and 461 transitions. [2023-12-19 15:40:26,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.555555555555555) internal successors, (50), 10 states have internal predecessors, (50), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2023-12-19 15:40:26,887 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 461 transitions. [2023-12-19 15:40:26,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-19 15:40:26,888 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:40:26,888 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:40:26,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-19 15:40:26,889 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:40:26,889 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:40:26,889 INFO L85 PathProgramCache]: Analyzing trace with hash 682123567, now seen corresponding path program 1 times [2023-12-19 15:40:26,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:40:26,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52601831] [2023-12-19 15:40:26,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:40:26,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:40:26,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:27,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:40:27,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:27,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:40:27,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:27,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:40:27,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:27,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:40:27,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:27,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:40:27,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:27,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:40:27,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:27,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:40:27,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:27,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:40:27,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:27,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:40:27,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:27,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:40:27,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:27,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:40:27,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:27,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:40:27,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:27,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:40:27,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:27,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:40:27,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:27,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:40:27,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:27,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:40:27,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:27,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:40:27,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:27,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:40:27,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:27,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:40:27,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:27,332 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-19 15:40:27,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:40:27,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52601831] [2023-12-19 15:40:27,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52601831] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:40:27,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:40:27,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-19 15:40:27,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041716557] [2023-12-19 15:40:27,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:40:27,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 15:40:27,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:40:27,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 15:40:27,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-19 15:40:27,333 INFO L87 Difference]: Start difference. First operand 346 states and 461 transitions. Second operand has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 9 states have internal predecessors, (51), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:40:27,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:40:27,739 INFO L93 Difference]: Finished difference Result 750 states and 1002 transitions. [2023-12-19 15:40:27,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-19 15:40:27,740 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 9 states have internal predecessors, (51), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 143 [2023-12-19 15:40:27,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:40:27,742 INFO L225 Difference]: With dead ends: 750 [2023-12-19 15:40:27,742 INFO L226 Difference]: Without dead ends: 429 [2023-12-19 15:40:27,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2023-12-19 15:40:27,744 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 180 mSDsluCounter, 1056 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 1239 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 15:40:27,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 1239 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 15:40:27,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2023-12-19 15:40:27,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 406. [2023-12-19 15:40:27,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 323 states have (on average 1.2445820433436532) internal successors, (402), 328 states have internal predecessors, (402), 70 states have call successors, (70), 12 states have call predecessors, (70), 12 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2023-12-19 15:40:27,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 542 transitions. [2023-12-19 15:40:27,781 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 542 transitions. Word has length 143 [2023-12-19 15:40:27,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:40:27,781 INFO L495 AbstractCegarLoop]: Abstraction has 406 states and 542 transitions. [2023-12-19 15:40:27,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 9 states have internal predecessors, (51), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:40:27,781 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 542 transitions. [2023-12-19 15:40:27,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-19 15:40:27,782 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:40:27,782 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:40:27,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-19 15:40:27,783 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:40:27,783 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:40:27,783 INFO L85 PathProgramCache]: Analyzing trace with hash -1042183336, now seen corresponding path program 1 times [2023-12-19 15:40:27,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:40:27,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493655142] [2023-12-19 15:40:27,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:40:27,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:40:27,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:27,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:40:27,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:27,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:40:27,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:27,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:40:27,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:27,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:40:27,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:27,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:40:27,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:27,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:40:27,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:27,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:40:27,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:27,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:40:27,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:27,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:40:27,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:27,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:40:27,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:27,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:40:27,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:27,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:40:27,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:27,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:40:27,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:27,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:40:27,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:27,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:40:27,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:27,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:40:27,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:27,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:40:27,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:27,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:40:27,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:27,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:40:27,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:27,935 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-19 15:40:27,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:40:27,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493655142] [2023-12-19 15:40:27,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493655142] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:40:27,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:40:27,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 15:40:27,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421975856] [2023-12-19 15:40:27,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:40:27,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 15:40:27,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:40:27,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 15:40:27,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:40:27,937 INFO L87 Difference]: Start difference. First operand 406 states and 542 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:40:28,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:40:28,037 INFO L93 Difference]: Finished difference Result 874 states and 1169 transitions. [2023-12-19 15:40:28,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 15:40:28,037 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 143 [2023-12-19 15:40:28,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:40:28,039 INFO L225 Difference]: With dead ends: 874 [2023-12-19 15:40:28,039 INFO L226 Difference]: Without dead ends: 493 [2023-12-19 15:40:28,040 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 40 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 15:40:28,040 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 141 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 15:40:28,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 550 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 15:40:28,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2023-12-19 15:40:28,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 406. [2023-12-19 15:40:28,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 323 states have (on average 1.241486068111455) internal successors, (401), 328 states have internal predecessors, (401), 70 states have call successors, (70), 12 states have call predecessors, (70), 12 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2023-12-19 15:40:28,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 541 transitions. [2023-12-19 15:40:28,103 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 541 transitions. Word has length 143 [2023-12-19 15:40:28,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:40:28,103 INFO L495 AbstractCegarLoop]: Abstraction has 406 states and 541 transitions. [2023-12-19 15:40:28,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:40:28,104 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 541 transitions. [2023-12-19 15:40:28,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-19 15:40:28,105 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:40:28,105 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:40:28,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-19 15:40:28,105 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:40:28,105 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:40:28,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1019825518, now seen corresponding path program 1 times [2023-12-19 15:40:28,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:40:28,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473693171] [2023-12-19 15:40:28,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:40:28,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:40:28,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:28,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:40:28,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:28,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:40:28,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:28,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:40:28,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:28,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:40:28,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:28,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:40:28,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:28,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:40:28,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:28,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:40:28,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:28,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:40:28,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:28,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:40:28,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:28,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:40:28,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:28,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:40:28,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:28,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:40:28,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:28,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:40:28,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:28,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:40:28,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:28,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:40:28,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:28,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:40:28,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:28,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:40:28,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:28,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:40:28,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:28,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:40:28,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:28,362 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-19 15:40:28,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:40:28,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473693171] [2023-12-19 15:40:28,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473693171] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:40:28,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:40:28,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 15:40:28,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844039042] [2023-12-19 15:40:28,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:40:28,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 15:40:28,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:40:28,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 15:40:28,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:40:28,364 INFO L87 Difference]: Start difference. First operand 406 states and 541 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:40:28,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:40:28,462 INFO L93 Difference]: Finished difference Result 810 states and 1079 transitions. [2023-12-19 15:40:28,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 15:40:28,463 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 143 [2023-12-19 15:40:28,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:40:28,464 INFO L225 Difference]: With dead ends: 810 [2023-12-19 15:40:28,464 INFO L226 Difference]: Without dead ends: 429 [2023-12-19 15:40:28,466 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 40 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 15:40:28,466 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 136 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 15:40:28,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 535 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 15:40:28,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2023-12-19 15:40:28,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 406. [2023-12-19 15:40:28,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 323 states have (on average 1.238390092879257) internal successors, (400), 328 states have internal predecessors, (400), 70 states have call successors, (70), 12 states have call predecessors, (70), 12 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2023-12-19 15:40:28,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 540 transitions. [2023-12-19 15:40:28,501 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 540 transitions. Word has length 143 [2023-12-19 15:40:28,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:40:28,502 INFO L495 AbstractCegarLoop]: Abstraction has 406 states and 540 transitions. [2023-12-19 15:40:28,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:40:28,502 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 540 transitions. [2023-12-19 15:40:28,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-19 15:40:28,503 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:40:28,504 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:40:28,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-19 15:40:28,504 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:40:28,504 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:40:28,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1242836, now seen corresponding path program 1 times [2023-12-19 15:40:28,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:40:28,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470474159] [2023-12-19 15:40:28,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:40:28,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:40:28,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:28,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:40:28,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:28,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:40:28,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:28,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:40:28,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:28,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:40:28,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:28,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:40:28,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:28,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:40:28,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:28,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:40:28,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:28,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:40:28,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:28,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:40:28,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:28,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:40:28,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:28,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:40:28,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:28,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:40:28,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:28,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:40:28,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:28,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:40:28,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:28,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:40:28,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:28,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:40:28,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:28,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:40:28,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:28,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:40:28,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:28,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:40:28,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:28,666 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-19 15:40:28,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:40:28,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470474159] [2023-12-19 15:40:28,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470474159] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:40:28,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:40:28,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 15:40:28,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086143077] [2023-12-19 15:40:28,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:40:28,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 15:40:28,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:40:28,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 15:40:28,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:40:28,670 INFO L87 Difference]: Start difference. First operand 406 states and 540 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:40:28,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:40:28,762 INFO L93 Difference]: Finished difference Result 788 states and 1046 transitions. [2023-12-19 15:40:28,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 15:40:28,762 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 143 [2023-12-19 15:40:28,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:40:28,764 INFO L225 Difference]: With dead ends: 788 [2023-12-19 15:40:28,764 INFO L226 Difference]: Without dead ends: 407 [2023-12-19 15:40:28,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-19 15:40:28,766 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 87 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 648 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 15:40:28,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 648 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 15:40:28,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2023-12-19 15:40:28,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 404. [2023-12-19 15:40:28,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 320 states have (on average 1.23125) internal successors, (394), 325 states have internal predecessors, (394), 70 states have call successors, (70), 13 states have call predecessors, (70), 13 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2023-12-19 15:40:28,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 534 transitions. [2023-12-19 15:40:28,797 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 534 transitions. Word has length 143 [2023-12-19 15:40:28,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:40:28,798 INFO L495 AbstractCegarLoop]: Abstraction has 404 states and 534 transitions. [2023-12-19 15:40:28,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:40:28,798 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 534 transitions. [2023-12-19 15:40:28,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-12-19 15:40:28,799 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:40:28,799 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:40:28,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-19 15:40:28,799 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:40:28,799 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:40:28,799 INFO L85 PathProgramCache]: Analyzing trace with hash -1305691030, now seen corresponding path program 1 times [2023-12-19 15:40:28,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:40:28,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726604331] [2023-12-19 15:40:28,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:40:28,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:40:28,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:29,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:40:29,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:29,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:40:29,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:29,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:40:29,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:29,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:40:29,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:29,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:40:29,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:29,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:40:29,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:29,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:40:29,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:29,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:40:29,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:29,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:40:29,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:29,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:40:29,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:29,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:40:29,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:29,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:40:29,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:29,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:40:29,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:29,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:40:29,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:29,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:40:29,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:29,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:40:29,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:29,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:40:29,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:29,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:40:29,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:29,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:40:29,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:29,389 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-19 15:40:29,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:40:29,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726604331] [2023-12-19 15:40:29,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726604331] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:40:29,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:40:29,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-19 15:40:29,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578396770] [2023-12-19 15:40:29,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:40:29,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 15:40:29,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:40:29,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 15:40:29,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-12-19 15:40:29,391 INFO L87 Difference]: Start difference. First operand 404 states and 534 transitions. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:40:29,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:40:29,790 INFO L93 Difference]: Finished difference Result 1257 states and 1665 transitions. [2023-12-19 15:40:29,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-19 15:40:29,791 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 144 [2023-12-19 15:40:29,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:40:29,794 INFO L225 Difference]: With dead ends: 1257 [2023-12-19 15:40:29,794 INFO L226 Difference]: Without dead ends: 878 [2023-12-19 15:40:29,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2023-12-19 15:40:29,795 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 249 mSDsluCounter, 825 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 959 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 15:40:29,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 959 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 15:40:29,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878 states. [2023-12-19 15:40:29,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 535. [2023-12-19 15:40:29,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 445 states have (on average 1.256179775280899) internal successors, (559), 452 states have internal predecessors, (559), 74 states have call successors, (74), 15 states have call predecessors, (74), 15 states have return successors, (74), 67 states have call predecessors, (74), 74 states have call successors, (74) [2023-12-19 15:40:29,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 707 transitions. [2023-12-19 15:40:29,834 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 707 transitions. Word has length 144 [2023-12-19 15:40:29,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:40:29,834 INFO L495 AbstractCegarLoop]: Abstraction has 535 states and 707 transitions. [2023-12-19 15:40:29,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:40:29,834 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 707 transitions. [2023-12-19 15:40:29,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-19 15:40:29,835 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:40:29,835 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:40:29,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-19 15:40:29,835 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:40:29,836 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:40:29,836 INFO L85 PathProgramCache]: Analyzing trace with hash 276880682, now seen corresponding path program 1 times [2023-12-19 15:40:29,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:40:29,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725260326] [2023-12-19 15:40:29,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:40:29,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:40:29,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:30,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:40:30,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:30,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:40:30,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:30,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:40:30,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:30,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:40:30,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:30,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:40:30,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:30,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:40:30,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:30,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:40:30,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:30,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:40:30,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:30,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:40:30,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:30,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:40:30,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:30,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:40:30,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:30,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:40:30,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:30,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:40:30,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:30,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:40:30,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:30,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:40:30,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:30,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:40:30,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:30,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:40:30,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:30,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:40:30,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:30,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:40:30,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:30,919 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-19 15:40:30,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:40:30,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725260326] [2023-12-19 15:40:30,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725260326] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:40:30,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:40:30,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-19 15:40:30,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506937870] [2023-12-19 15:40:30,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:40:30,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-19 15:40:30,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:40:30,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-19 15:40:30,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-12-19 15:40:30,921 INFO L87 Difference]: Start difference. First operand 535 states and 707 transitions. Second operand has 14 states, 12 states have (on average 4.416666666666667) internal successors, (53), 13 states have internal predecessors, (53), 6 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 5 states have call predecessors, (19), 6 states have call successors, (19) [2023-12-19 15:40:31,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:40:31,645 INFO L93 Difference]: Finished difference Result 1343 states and 1775 transitions. [2023-12-19 15:40:31,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-19 15:40:31,646 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 4.416666666666667) internal successors, (53), 13 states have internal predecessors, (53), 6 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 5 states have call predecessors, (19), 6 states have call successors, (19) Word has length 145 [2023-12-19 15:40:31,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:40:31,648 INFO L225 Difference]: With dead ends: 1343 [2023-12-19 15:40:31,649 INFO L226 Difference]: Without dead ends: 833 [2023-12-19 15:40:31,650 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=424, Unknown=0, NotChecked=0, Total=552 [2023-12-19 15:40:31,650 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 712 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 712 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-19 15:40:31,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [712 Valid, 671 Invalid, 673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 587 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-19 15:40:31,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 833 states. [2023-12-19 15:40:31,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 833 to 571. [2023-12-19 15:40:31,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 481 states have (on average 1.2661122661122661) internal successors, (609), 488 states have internal predecessors, (609), 74 states have call successors, (74), 15 states have call predecessors, (74), 15 states have return successors, (74), 67 states have call predecessors, (74), 74 states have call successors, (74) [2023-12-19 15:40:31,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 757 transitions. [2023-12-19 15:40:31,694 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 757 transitions. Word has length 145 [2023-12-19 15:40:31,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:40:31,694 INFO L495 AbstractCegarLoop]: Abstraction has 571 states and 757 transitions. [2023-12-19 15:40:31,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 4.416666666666667) internal successors, (53), 13 states have internal predecessors, (53), 6 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 5 states have call predecessors, (19), 6 states have call successors, (19) [2023-12-19 15:40:31,694 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 757 transitions. [2023-12-19 15:40:31,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-19 15:40:31,695 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:40:31,695 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:40:31,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-19 15:40:31,696 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:40:31,696 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:40:31,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1311467220, now seen corresponding path program 1 times [2023-12-19 15:40:31,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:40:31,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783560491] [2023-12-19 15:40:31,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:40:31,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:40:31,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:32,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:40:32,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:32,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:40:32,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:32,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:40:32,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:32,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:40:32,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:32,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:40:32,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:32,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:40:32,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:32,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:40:32,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:32,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:40:32,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:32,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:40:32,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:32,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:40:32,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:32,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:40:32,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:32,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:40:32,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:32,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:40:32,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:32,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:40:32,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:32,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:40:32,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:32,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:40:32,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:32,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:40:32,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:32,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:40:32,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:32,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:40:32,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:32,541 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-19 15:40:32,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:40:32,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783560491] [2023-12-19 15:40:32,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783560491] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:40:32,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:40:32,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-12-19 15:40:32,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794412533] [2023-12-19 15:40:32,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:40:32,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-19 15:40:32,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:40:32,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-19 15:40:32,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2023-12-19 15:40:32,543 INFO L87 Difference]: Start difference. First operand 571 states and 757 transitions. Second operand has 15 states, 13 states have (on average 4.076923076923077) internal successors, (53), 14 states have internal predecessors, (53), 6 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 5 states have call predecessors, (19), 6 states have call successors, (19) [2023-12-19 15:40:33,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:40:33,489 INFO L93 Difference]: Finished difference Result 1389 states and 1835 transitions. [2023-12-19 15:40:33,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-19 15:40:33,489 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 4.076923076923077) internal successors, (53), 14 states have internal predecessors, (53), 6 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 5 states have call predecessors, (19), 6 states have call successors, (19) Word has length 145 [2023-12-19 15:40:33,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:40:33,492 INFO L225 Difference]: With dead ends: 1389 [2023-12-19 15:40:33,492 INFO L226 Difference]: Without dead ends: 843 [2023-12-19 15:40:33,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=472, Unknown=0, NotChecked=0, Total=600 [2023-12-19 15:40:33,494 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 622 mSDsluCounter, 680 mSDsCounter, 0 mSdLazyCounter, 960 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 622 SdHoareTripleChecker+Valid, 806 SdHoareTripleChecker+Invalid, 1038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 960 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-19 15:40:33,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [622 Valid, 806 Invalid, 1038 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 960 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-19 15:40:33,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 843 states. [2023-12-19 15:40:33,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 843 to 593. [2023-12-19 15:40:33,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 593 states, 503 states have (on average 1.268389662027833) internal successors, (638), 510 states have internal predecessors, (638), 74 states have call successors, (74), 15 states have call predecessors, (74), 15 states have return successors, (74), 67 states have call predecessors, (74), 74 states have call successors, (74) [2023-12-19 15:40:33,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 786 transitions. [2023-12-19 15:40:33,532 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 786 transitions. Word has length 145 [2023-12-19 15:40:33,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:40:33,532 INFO L495 AbstractCegarLoop]: Abstraction has 593 states and 786 transitions. [2023-12-19 15:40:33,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 4.076923076923077) internal successors, (53), 14 states have internal predecessors, (53), 6 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 5 states have call predecessors, (19), 6 states have call successors, (19) [2023-12-19 15:40:33,533 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 786 transitions. [2023-12-19 15:40:33,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-19 15:40:33,534 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:40:33,534 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:40:33,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-19 15:40:33,534 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:40:33,534 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:40:33,534 INFO L85 PathProgramCache]: Analyzing trace with hash 98888182, now seen corresponding path program 1 times [2023-12-19 15:40:33,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:40:33,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291371210] [2023-12-19 15:40:33,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:40:33,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:40:33,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:33,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:40:33,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:33,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:40:33,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:33,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:40:33,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:33,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:40:33,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:33,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:40:33,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:33,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:40:33,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:33,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:40:33,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:33,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:40:33,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:33,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:40:33,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:33,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:40:33,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:33,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:40:33,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:33,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:40:33,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:33,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:40:33,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:33,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:40:33,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:33,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:40:33,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:33,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:40:33,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:33,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:40:33,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:33,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:40:33,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:33,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:40:33,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:33,957 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-19 15:40:33,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:40:33,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291371210] [2023-12-19 15:40:33,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291371210] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:40:33,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:40:33,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-19 15:40:33,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910808001] [2023-12-19 15:40:33,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:40:33,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 15:40:33,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:40:33,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 15:40:33,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-19 15:40:33,959 INFO L87 Difference]: Start difference. First operand 593 states and 786 transitions. Second operand has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2023-12-19 15:40:34,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:40:34,386 INFO L93 Difference]: Finished difference Result 1241 states and 1641 transitions. [2023-12-19 15:40:34,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 15:40:34,386 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 145 [2023-12-19 15:40:34,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:40:34,388 INFO L225 Difference]: With dead ends: 1241 [2023-12-19 15:40:34,388 INFO L226 Difference]: Without dead ends: 673 [2023-12-19 15:40:34,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2023-12-19 15:40:34,390 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 232 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 683 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 15:40:34,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 683 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 15:40:34,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2023-12-19 15:40:34,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 593. [2023-12-19 15:40:34,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 593 states, 503 states have (on average 1.2664015904572565) internal successors, (637), 510 states have internal predecessors, (637), 74 states have call successors, (74), 15 states have call predecessors, (74), 15 states have return successors, (74), 67 states have call predecessors, (74), 74 states have call successors, (74) [2023-12-19 15:40:34,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 785 transitions. [2023-12-19 15:40:34,425 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 785 transitions. Word has length 145 [2023-12-19 15:40:34,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:40:34,425 INFO L495 AbstractCegarLoop]: Abstraction has 593 states and 785 transitions. [2023-12-19 15:40:34,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2023-12-19 15:40:34,426 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 785 transitions. [2023-12-19 15:40:34,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-19 15:40:34,427 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:40:34,427 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:40:34,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-19 15:40:34,427 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:40:34,427 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:40:34,427 INFO L85 PathProgramCache]: Analyzing trace with hash -41660428, now seen corresponding path program 1 times [2023-12-19 15:40:34,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:40:34,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248632824] [2023-12-19 15:40:34,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:40:34,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:40:34,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:34,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:40:34,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:34,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:40:34,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:34,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:40:34,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:34,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:40:34,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:34,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:40:34,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:34,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:40:34,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:34,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:40:34,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:34,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:40:34,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:34,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:40:34,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:34,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:40:34,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:34,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:40:34,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:34,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:40:34,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:34,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:40:34,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:34,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:40:34,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:34,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:40:34,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:34,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:40:34,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:34,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:40:34,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:34,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:40:34,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:34,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:40:34,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:34,934 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-19 15:40:34,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:40:34,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248632824] [2023-12-19 15:40:34,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248632824] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:40:34,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:40:34,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-19 15:40:34,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491471079] [2023-12-19 15:40:34,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:40:34,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-19 15:40:34,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:40:34,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-19 15:40:34,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-12-19 15:40:34,937 INFO L87 Difference]: Start difference. First operand 593 states and 785 transitions. Second operand has 13 states, 12 states have (on average 4.416666666666667) internal successors, (53), 13 states have internal predecessors, (53), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2023-12-19 15:40:35,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:40:35,819 INFO L93 Difference]: Finished difference Result 1385 states and 1831 transitions. [2023-12-19 15:40:35,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-19 15:40:35,820 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.416666666666667) internal successors, (53), 13 states have internal predecessors, (53), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 145 [2023-12-19 15:40:35,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:40:35,822 INFO L225 Difference]: With dead ends: 1385 [2023-12-19 15:40:35,822 INFO L226 Difference]: Without dead ends: 817 [2023-12-19 15:40:35,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=117, Invalid=483, Unknown=0, NotChecked=0, Total=600 [2023-12-19 15:40:35,824 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 439 mSDsluCounter, 1089 mSDsCounter, 0 mSdLazyCounter, 974 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 1284 SdHoareTripleChecker+Invalid, 1018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 974 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-19 15:40:35,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [439 Valid, 1284 Invalid, 1018 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 974 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-19 15:40:35,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 817 states. [2023-12-19 15:40:35,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 817 to 605. [2023-12-19 15:40:35,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 605 states, 515 states have (on average 1.2640776699029126) internal successors, (651), 522 states have internal predecessors, (651), 74 states have call successors, (74), 15 states have call predecessors, (74), 15 states have return successors, (74), 67 states have call predecessors, (74), 74 states have call successors, (74) [2023-12-19 15:40:35,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 799 transitions. [2023-12-19 15:40:35,856 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 799 transitions. Word has length 145 [2023-12-19 15:40:35,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:40:35,856 INFO L495 AbstractCegarLoop]: Abstraction has 605 states and 799 transitions. [2023-12-19 15:40:35,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.416666666666667) internal successors, (53), 13 states have internal predecessors, (53), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2023-12-19 15:40:35,857 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 799 transitions. [2023-12-19 15:40:35,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-19 15:40:35,858 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:40:35,858 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:40:35,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-19 15:40:35,858 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:40:35,858 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:40:35,858 INFO L85 PathProgramCache]: Analyzing trace with hash -1730604170, now seen corresponding path program 1 times [2023-12-19 15:40:35,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:40:35,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624428578] [2023-12-19 15:40:35,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:40:35,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:40:35,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:36,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:40:36,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:36,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:40:36,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:36,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:40:36,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:36,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:40:36,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:36,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:40:36,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:36,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:40:36,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:36,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:40:36,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:36,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:40:36,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:36,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:40:36,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:36,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:40:36,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:36,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:40:36,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:36,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:40:36,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:36,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:40:36,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:36,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:40:36,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:36,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:40:36,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:36,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:40:36,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:36,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:40:36,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:36,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:40:36,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:36,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:40:36,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:36,693 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-19 15:40:36,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:40:36,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624428578] [2023-12-19 15:40:36,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624428578] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:40:36,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:40:36,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-12-19 15:40:36,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144878501] [2023-12-19 15:40:36,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:40:36,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-19 15:40:36,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:40:36,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-19 15:40:36,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2023-12-19 15:40:36,695 INFO L87 Difference]: Start difference. First operand 605 states and 799 transitions. Second operand has 17 states, 15 states have (on average 3.533333333333333) internal successors, (53), 17 states have internal predecessors, (53), 7 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 5 states have call predecessors, (19), 7 states have call successors, (19) [2023-12-19 15:40:38,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:40:38,069 INFO L93 Difference]: Finished difference Result 1407 states and 1855 transitions. [2023-12-19 15:40:38,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-19 15:40:38,084 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 3.533333333333333) internal successors, (53), 17 states have internal predecessors, (53), 7 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 5 states have call predecessors, (19), 7 states have call successors, (19) Word has length 145 [2023-12-19 15:40:38,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:40:38,087 INFO L225 Difference]: With dead ends: 1407 [2023-12-19 15:40:38,087 INFO L226 Difference]: Without dead ends: 827 [2023-12-19 15:40:38,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=175, Invalid=755, Unknown=0, NotChecked=0, Total=930 [2023-12-19 15:40:38,089 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 325 mSDsluCounter, 1287 mSDsCounter, 0 mSdLazyCounter, 1332 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 1488 SdHoareTripleChecker+Invalid, 1345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-19 15:40:38,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 1488 Invalid, 1345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1332 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-19 15:40:38,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 827 states. [2023-12-19 15:40:38,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 827 to 603. [2023-12-19 15:40:38,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 513 states have (on average 1.2612085769980508) internal successors, (647), 520 states have internal predecessors, (647), 74 states have call successors, (74), 15 states have call predecessors, (74), 15 states have return successors, (74), 67 states have call predecessors, (74), 74 states have call successors, (74) [2023-12-19 15:40:38,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 795 transitions. [2023-12-19 15:40:38,145 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 795 transitions. Word has length 145 [2023-12-19 15:40:38,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:40:38,145 INFO L495 AbstractCegarLoop]: Abstraction has 603 states and 795 transitions. [2023-12-19 15:40:38,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 3.533333333333333) internal successors, (53), 17 states have internal predecessors, (53), 7 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 5 states have call predecessors, (19), 7 states have call successors, (19) [2023-12-19 15:40:38,146 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 795 transitions. [2023-12-19 15:40:38,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-19 15:40:38,147 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:40:38,147 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:40:38,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-19 15:40:38,147 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:40:38,147 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:40:38,147 INFO L85 PathProgramCache]: Analyzing trace with hash -232592408, now seen corresponding path program 1 times [2023-12-19 15:40:38,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:40:38,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294874559] [2023-12-19 15:40:38,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:40:38,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:40:38,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:38,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:40:38,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:38,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:40:38,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:38,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:40:38,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:38,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:40:38,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:38,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:40:38,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:38,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:40:38,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:38,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:40:38,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:38,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:40:38,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:38,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:40:38,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:38,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:40:38,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:38,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:40:38,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:38,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:40:38,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:38,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:40:38,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:38,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:40:38,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:38,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:40:38,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:38,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:40:38,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:38,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:40:38,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:38,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:40:38,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:38,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:40:38,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:38,416 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-19 15:40:38,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:40:38,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294874559] [2023-12-19 15:40:38,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294874559] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:40:38,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:40:38,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-19 15:40:38,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437913562] [2023-12-19 15:40:38,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:40:38,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-19 15:40:38,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:40:38,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-19 15:40:38,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-19 15:40:38,418 INFO L87 Difference]: Start difference. First operand 603 states and 795 transitions. Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:40:38,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:40:38,744 INFO L93 Difference]: Finished difference Result 1336 states and 1760 transitions. [2023-12-19 15:40:38,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-19 15:40:38,745 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 145 [2023-12-19 15:40:38,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:40:38,747 INFO L225 Difference]: With dead ends: 1336 [2023-12-19 15:40:38,747 INFO L226 Difference]: Without dead ends: 758 [2023-12-19 15:40:38,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2023-12-19 15:40:38,749 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 192 mSDsluCounter, 739 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 890 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 15:40:38,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 890 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 15:40:38,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2023-12-19 15:40:38,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 574. [2023-12-19 15:40:38,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 486 states have (on average 1.2592592592592593) internal successors, (612), 492 states have internal predecessors, (612), 72 states have call successors, (72), 15 states have call predecessors, (72), 15 states have return successors, (72), 66 states have call predecessors, (72), 72 states have call successors, (72) [2023-12-19 15:40:38,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 756 transitions. [2023-12-19 15:40:38,778 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 756 transitions. Word has length 145 [2023-12-19 15:40:38,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:40:38,778 INFO L495 AbstractCegarLoop]: Abstraction has 574 states and 756 transitions. [2023-12-19 15:40:38,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:40:38,779 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 756 transitions. [2023-12-19 15:40:38,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-19 15:40:38,780 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:40:38,780 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:40:38,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-19 15:40:38,780 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:40:38,780 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:40:38,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1820940310, now seen corresponding path program 1 times [2023-12-19 15:40:38,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:40:38,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012781622] [2023-12-19 15:40:38,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:40:38,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:40:38,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:38,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:40:38,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:38,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:40:38,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:38,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:40:38,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:38,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:40:38,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:38,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:40:38,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:38,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:40:38,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:38,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:40:38,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:38,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:40:38,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:38,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:40:38,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:38,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:40:38,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:38,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:40:38,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:38,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:40:38,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:38,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:40:38,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:38,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:40:38,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:38,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:40:38,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:38,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:40:38,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:38,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:40:38,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:38,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:40:38,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:38,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:40:38,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:38,937 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-19 15:40:38,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:40:38,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012781622] [2023-12-19 15:40:38,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012781622] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:40:38,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:40:38,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 15:40:38,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720548650] [2023-12-19 15:40:38,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:40:38,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 15:40:38,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:40:38,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 15:40:38,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-19 15:40:38,940 INFO L87 Difference]: Start difference. First operand 574 states and 756 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:40:39,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:40:39,108 INFO L93 Difference]: Finished difference Result 1255 states and 1647 transitions. [2023-12-19 15:40:39,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-19 15:40:39,108 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 145 [2023-12-19 15:40:39,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:40:39,110 INFO L225 Difference]: With dead ends: 1255 [2023-12-19 15:40:39,110 INFO L226 Difference]: Without dead ends: 706 [2023-12-19 15:40:39,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-12-19 15:40:39,112 INFO L413 NwaCegarLoop]: 235 mSDtfsCounter, 125 mSDsluCounter, 697 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 932 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 15:40:39,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 932 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 15:40:39,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2023-12-19 15:40:39,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 560. [2023-12-19 15:40:39,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 472 states have (on average 1.2542372881355932) internal successors, (592), 478 states have internal predecessors, (592), 72 states have call successors, (72), 15 states have call predecessors, (72), 15 states have return successors, (72), 66 states have call predecessors, (72), 72 states have call successors, (72) [2023-12-19 15:40:39,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 736 transitions. [2023-12-19 15:40:39,142 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 736 transitions. Word has length 145 [2023-12-19 15:40:39,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:40:39,142 INFO L495 AbstractCegarLoop]: Abstraction has 560 states and 736 transitions. [2023-12-19 15:40:39,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:40:39,142 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 736 transitions. [2023-12-19 15:40:39,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-19 15:40:39,143 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:40:39,143 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:40:39,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-19 15:40:39,143 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:40:39,144 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:40:39,144 INFO L85 PathProgramCache]: Analyzing trace with hash -410584908, now seen corresponding path program 1 times [2023-12-19 15:40:39,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:40:39,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130070513] [2023-12-19 15:40:39,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:40:39,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:40:39,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:39,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:40:39,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:39,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:40:39,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:39,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:40:39,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:39,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:40:39,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:39,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:40:39,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:39,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:40:39,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:39,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:40:39,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:39,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:40:39,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:39,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:40:39,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:39,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:40:39,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:39,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:40:39,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:39,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:40:39,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:39,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:40:39,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:39,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:40:39,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:39,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:40:39,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:39,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:40:39,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:39,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:40:39,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:39,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:40:39,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:39,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:40:39,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:39,536 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-19 15:40:39,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:40:39,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130070513] [2023-12-19 15:40:39,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130070513] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:40:39,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:40:39,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-19 15:40:39,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286222883] [2023-12-19 15:40:39,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:40:39,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 15:40:39,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:40:39,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 15:40:39,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-12-19 15:40:39,538 INFO L87 Difference]: Start difference. First operand 560 states and 736 transitions. Second operand has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2023-12-19 15:40:39,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:40:39,898 INFO L93 Difference]: Finished difference Result 1187 states and 1553 transitions. [2023-12-19 15:40:39,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 15:40:39,899 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 145 [2023-12-19 15:40:39,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:40:39,901 INFO L225 Difference]: With dead ends: 1187 [2023-12-19 15:40:39,901 INFO L226 Difference]: Without dead ends: 652 [2023-12-19 15:40:39,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2023-12-19 15:40:39,902 INFO L413 NwaCegarLoop]: 144 mSDtfsCounter, 356 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 15:40:39,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [356 Valid, 526 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 15:40:39,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652 states. [2023-12-19 15:40:39,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652 to 527. [2023-12-19 15:40:39,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 441 states have (on average 1.2380952380952381) internal successors, (546), 446 states have internal predecessors, (546), 70 states have call successors, (70), 15 states have call predecessors, (70), 15 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2023-12-19 15:40:39,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 686 transitions. [2023-12-19 15:40:39,939 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 686 transitions. Word has length 145 [2023-12-19 15:40:39,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:40:39,939 INFO L495 AbstractCegarLoop]: Abstraction has 527 states and 686 transitions. [2023-12-19 15:40:39,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2023-12-19 15:40:39,939 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 686 transitions. [2023-12-19 15:40:39,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-19 15:40:39,940 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:40:39,940 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:40:39,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-19 15:40:39,940 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:40:39,941 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:40:39,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1690448586, now seen corresponding path program 1 times [2023-12-19 15:40:39,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:40:39,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143425846] [2023-12-19 15:40:39,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:40:39,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:40:39,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:40,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:40:40,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:40,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:40:40,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:40,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:40:40,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:40,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:40:40,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:40,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:40:40,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:40,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:40:40,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:40,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:40:40,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:40,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:40:40,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:40,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:40:40,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:40,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:40:40,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:40,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:40:40,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:40,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:40:40,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:40,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:40:40,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:40,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:40:40,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:40,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:40:40,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:40,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:40:40,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:40,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:40:40,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:40,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:40:40,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:40,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:40:40,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:40,256 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-19 15:40:40,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:40:40,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143425846] [2023-12-19 15:40:40,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143425846] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:40:40,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:40:40,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-19 15:40:40,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369480401] [2023-12-19 15:40:40,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:40:40,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-19 15:40:40,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:40:40,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-19 15:40:40,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-12-19 15:40:40,258 INFO L87 Difference]: Start difference. First operand 527 states and 686 transitions. Second operand has 10 states, 9 states have (on average 5.888888888888889) internal successors, (53), 10 states have internal predecessors, (53), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2023-12-19 15:40:40,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:40:40,564 INFO L93 Difference]: Finished difference Result 1126 states and 1465 transitions. [2023-12-19 15:40:40,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-19 15:40:40,564 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.888888888888889) internal successors, (53), 10 states have internal predecessors, (53), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 145 [2023-12-19 15:40:40,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:40:40,566 INFO L225 Difference]: With dead ends: 1126 [2023-12-19 15:40:40,566 INFO L226 Difference]: Without dead ends: 624 [2023-12-19 15:40:40,567 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 42 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 15:40:40,568 INFO L413 NwaCegarLoop]: 182 mSDtfsCounter, 253 mSDsluCounter, 656 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 838 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 15:40:40,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 838 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 15:40:40,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2023-12-19 15:40:40,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 537. [2023-12-19 15:40:40,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 453 states have (on average 1.2406181015452538) internal successors, (562), 458 states have internal predecessors, (562), 68 states have call successors, (68), 15 states have call predecessors, (68), 15 states have return successors, (68), 63 states have call predecessors, (68), 68 states have call successors, (68) [2023-12-19 15:40:40,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 698 transitions. [2023-12-19 15:40:40,597 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 698 transitions. Word has length 145 [2023-12-19 15:40:40,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:40:40,598 INFO L495 AbstractCegarLoop]: Abstraction has 537 states and 698 transitions. [2023-12-19 15:40:40,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.888888888888889) internal successors, (53), 10 states have internal predecessors, (53), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2023-12-19 15:40:40,598 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 698 transitions. [2023-12-19 15:40:40,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-19 15:40:40,599 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:40:40,599 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:40:40,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-19 15:40:40,599 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:40:40,599 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:40:40,599 INFO L85 PathProgramCache]: Analyzing trace with hash -282214863, now seen corresponding path program 1 times [2023-12-19 15:40:40,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:40:40,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511627071] [2023-12-19 15:40:40,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:40:40,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:40:40,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:41,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:40:41,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:41,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:40:41,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:41,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:40:41,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:41,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:40:41,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:41,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:40:41,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:41,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:40:41,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:41,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:40:41,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:41,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:40:41,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:41,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:40:41,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:41,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:40:41,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:41,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:40:41,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:41,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:40:41,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:41,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:40:41,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:41,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:40:41,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:41,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:40:41,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:41,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:40:41,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:41,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:40:41,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:41,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:40:41,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:41,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:40:41,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:41,085 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-19 15:40:41,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:40:41,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511627071] [2023-12-19 15:40:41,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511627071] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:40:41,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:40:41,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-19 15:40:41,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765722183] [2023-12-19 15:40:41,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:40:41,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-19 15:40:41,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:40:41,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-19 15:40:41,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2023-12-19 15:40:41,086 INFO L87 Difference]: Start difference. First operand 537 states and 698 transitions. Second operand has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 12 states have internal predecessors, (53), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:40:41,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:40:41,610 INFO L93 Difference]: Finished difference Result 1564 states and 2019 transitions. [2023-12-19 15:40:41,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-19 15:40:41,611 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 12 states have internal predecessors, (53), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 145 [2023-12-19 15:40:41,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:40:41,614 INFO L225 Difference]: With dead ends: 1564 [2023-12-19 15:40:41,614 INFO L226 Difference]: Without dead ends: 1048 [2023-12-19 15:40:41,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2023-12-19 15:40:41,615 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 242 mSDsluCounter, 1733 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 1936 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 15:40:41,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 1936 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 15:40:41,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1048 states. [2023-12-19 15:40:41,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1048 to 692. [2023-12-19 15:40:41,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 692 states, 591 states have (on average 1.2267343485617597) internal successors, (725), 598 states have internal predecessors, (725), 80 states have call successors, (80), 20 states have call predecessors, (80), 20 states have return successors, (80), 73 states have call predecessors, (80), 80 states have call successors, (80) [2023-12-19 15:40:41,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 885 transitions. [2023-12-19 15:40:41,658 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 885 transitions. Word has length 145 [2023-12-19 15:40:41,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:40:41,659 INFO L495 AbstractCegarLoop]: Abstraction has 692 states and 885 transitions. [2023-12-19 15:40:41,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 12 states have internal predecessors, (53), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:40:41,659 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 885 transitions. [2023-12-19 15:40:41,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-19 15:40:41,660 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:40:41,660 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:40:41,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-19 15:40:41,660 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:40:41,660 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:40:41,661 INFO L85 PathProgramCache]: Analyzing trace with hash -63360145, now seen corresponding path program 1 times [2023-12-19 15:40:41,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:40:41,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612704409] [2023-12-19 15:40:41,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:40:41,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:40:41,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:42,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:40:42,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:42,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:40:42,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:42,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:40:42,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:42,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:40:42,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:42,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:40:42,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:42,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:40:42,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:42,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:40:42,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:42,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:40:42,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:42,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:40:42,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:42,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:40:42,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:42,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:40:42,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:42,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:40:42,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:42,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:40:42,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:42,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:40:42,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:42,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:40:42,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:42,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:40:42,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:42,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:40:42,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:42,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:40:42,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:42,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:40:42,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:42,516 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-19 15:40:42,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:40:42,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612704409] [2023-12-19 15:40:42,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612704409] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:40:42,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:40:42,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-12-19 15:40:42,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769076650] [2023-12-19 15:40:42,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:40:42,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-19 15:40:42,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:40:42,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-19 15:40:42,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2023-12-19 15:40:42,518 INFO L87 Difference]: Start difference. First operand 692 states and 885 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, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2023-12-19 15:40:43,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:40:43,875 INFO L93 Difference]: Finished difference Result 1665 states and 2121 transitions. [2023-12-19 15:40:43,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-19 15:40:43,876 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, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 145 [2023-12-19 15:40:43,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:40:43,878 INFO L225 Difference]: With dead ends: 1665 [2023-12-19 15:40:43,878 INFO L226 Difference]: Without dead ends: 994 [2023-12-19 15:40:43,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=192, Invalid=800, Unknown=0, NotChecked=0, Total=992 [2023-12-19 15:40:43,880 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 352 mSDsluCounter, 1739 mSDsCounter, 0 mSdLazyCounter, 1111 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 1943 SdHoareTripleChecker+Invalid, 1132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-19 15:40:43,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [352 Valid, 1943 Invalid, 1132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1111 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-19 15:40:43,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 994 states. [2023-12-19 15:40:43,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 994 to 710. [2023-12-19 15:40:43,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 710 states, 609 states have (on average 1.2200328407224958) internal successors, (743), 616 states have internal predecessors, (743), 80 states have call successors, (80), 20 states have call predecessors, (80), 20 states have return successors, (80), 73 states have call predecessors, (80), 80 states have call successors, (80) [2023-12-19 15:40:43,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710 states to 710 states and 903 transitions. [2023-12-19 15:40:43,925 INFO L78 Accepts]: Start accepts. Automaton has 710 states and 903 transitions. Word has length 145 [2023-12-19 15:40:43,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:40:43,925 INFO L495 AbstractCegarLoop]: Abstraction has 710 states and 903 transitions. [2023-12-19 15:40:43,925 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, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2023-12-19 15:40:43,925 INFO L276 IsEmpty]: Start isEmpty. Operand 710 states and 903 transitions. [2023-12-19 15:40:43,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-12-19 15:40:43,926 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:40:43,927 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:40:43,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-19 15:40:43,927 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:40:43,927 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:40:43,927 INFO L85 PathProgramCache]: Analyzing trace with hash -128073145, now seen corresponding path program 1 times [2023-12-19 15:40:43,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:40:43,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286010139] [2023-12-19 15:40:43,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:40:43,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:40:43,945 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:40:43,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1716610207] [2023-12-19 15:40:43,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:40:43,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:40:43,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:40:43,948 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 15:40:43,949 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 15:40:44,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:44,173 INFO L262 TraceCheckSpWp]: Trace formula consists of 593 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-19 15:40:44,182 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:40:44,295 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 43 treesize of output 35 [2023-12-19 15:40:44,312 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 27 treesize of output 19 [2023-12-19 15:40:44,325 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 15:40:44,334 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-19 15:40:44,334 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:40:44,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:40:44,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286010139] [2023-12-19 15:40:44,334 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:40:44,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1716610207] [2023-12-19 15:40:44,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1716610207] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:40:44,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:40:44,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 15:40:44,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020554928] [2023-12-19 15:40:44,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:40:44,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 15:40:44,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:40:44,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 15:40:44,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-19 15:40:44,336 INFO L87 Difference]: Start difference. First operand 710 states and 903 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:40:44,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:40:44,629 INFO L93 Difference]: Finished difference Result 1497 states and 1905 transitions. [2023-12-19 15:40:44,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 15:40:44,629 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 146 [2023-12-19 15:40:44,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:40:44,633 INFO L225 Difference]: With dead ends: 1497 [2023-12-19 15:40:44,633 INFO L226 Difference]: Without dead ends: 788 [2023-12-19 15:40:44,634 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-12-19 15:40:44,634 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 146 mSDsluCounter, 657 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 823 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 15:40:44,635 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 823 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 15:40:44,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 788 states. [2023-12-19 15:40:44,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 788 to 703. [2023-12-19 15:40:44,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 703 states, 602 states have (on average 1.2192691029900333) internal successors, (734), 609 states have internal predecessors, (734), 80 states have call successors, (80), 20 states have call predecessors, (80), 20 states have return successors, (80), 73 states have call predecessors, (80), 80 states have call successors, (80) [2023-12-19 15:40:44,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 894 transitions. [2023-12-19 15:40:44,682 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 894 transitions. Word has length 146 [2023-12-19 15:40:44,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:40:44,682 INFO L495 AbstractCegarLoop]: Abstraction has 703 states and 894 transitions. [2023-12-19 15:40:44,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:40:44,682 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 894 transitions. [2023-12-19 15:40:44,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-12-19 15:40:44,683 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:40:44,683 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:40:44,690 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 15:40:44,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-12-19 15:40:44,890 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:40:44,891 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:40:44,891 INFO L85 PathProgramCache]: Analyzing trace with hash -679287660, now seen corresponding path program 1 times [2023-12-19 15:40:44,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:40:44,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482650327] [2023-12-19 15:40:44,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:40:44,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:40:44,911 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:40:44,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [341177213] [2023-12-19 15:40:44,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:40:44,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:40:44,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:40:44,913 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 15:40:44,920 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 15:40:45,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:45,118 INFO L262 TraceCheckSpWp]: Trace formula consists of 585 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-19 15:40:45,123 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:40:45,146 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 17 treesize of output 13 [2023-12-19 15:40:45,169 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 15:40:45,180 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 15:40:45,229 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2023-12-19 15:40:45,230 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 15:40:45,387 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-19 15:40:45,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:40:45,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482650327] [2023-12-19 15:40:45,388 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:40:45,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [341177213] [2023-12-19 15:40:45,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [341177213] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-19 15:40:45,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 15:40:45,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [11] total 16 [2023-12-19 15:40:45,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129594120] [2023-12-19 15:40:45,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:40:45,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 15:40:45,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:40:45,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 15:40:45,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2023-12-19 15:40:45,390 INFO L87 Difference]: Start difference. First operand 703 states and 894 transitions. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:40:45,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:40:45,696 INFO L93 Difference]: Finished difference Result 1518 states and 1932 transitions. [2023-12-19 15:40:45,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-19 15:40:45,696 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 146 [2023-12-19 15:40:45,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:40:45,699 INFO L225 Difference]: With dead ends: 1518 [2023-12-19 15:40:45,699 INFO L226 Difference]: Without dead ends: 816 [2023-12-19 15:40:45,700 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=383, Unknown=0, NotChecked=0, Total=462 [2023-12-19 15:40:45,700 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 164 mSDsluCounter, 1164 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 1357 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 15:40:45,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 1357 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 15:40:45,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 816 states. [2023-12-19 15:40:45,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 816 to 639. [2023-12-19 15:40:45,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 639 states, 538 states have (on average 1.2304832713754648) internal successors, (662), 545 states have internal predecessors, (662), 80 states have call successors, (80), 20 states have call predecessors, (80), 20 states have return successors, (80), 73 states have call predecessors, (80), 80 states have call successors, (80) [2023-12-19 15:40:45,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 822 transitions. [2023-12-19 15:40:45,774 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 822 transitions. Word has length 146 [2023-12-19 15:40:45,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:40:45,774 INFO L495 AbstractCegarLoop]: Abstraction has 639 states and 822 transitions. [2023-12-19 15:40:45,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:40:45,774 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 822 transitions. [2023-12-19 15:40:45,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-12-19 15:40:45,775 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:40:45,775 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:40:45,782 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-19 15:40:45,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:40:45,982 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:40:45,982 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:40:45,982 INFO L85 PathProgramCache]: Analyzing trace with hash -110038333, now seen corresponding path program 1 times [2023-12-19 15:40:45,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:40:45,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002933860] [2023-12-19 15:40:45,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:40:45,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:40:46,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:46,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:40:46,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:46,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:40:46,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:46,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:40:46,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:46,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:40:46,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:46,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:40:46,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:46,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:40:46,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:46,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:40:46,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:46,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:40:46,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:46,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:40:46,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:46,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:40:46,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:46,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:40:46,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:46,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:40:46,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:46,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:40:46,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:46,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:40:46,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:46,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:40:46,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:46,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:40:46,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:46,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:40:46,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:46,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:40:46,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:46,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:40:46,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:46,214 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-19 15:40:46,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:40:46,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002933860] [2023-12-19 15:40:46,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002933860] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:40:46,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:40:46,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-19 15:40:46,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344100503] [2023-12-19 15:40:46,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:40:46,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-19 15:40:46,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:40:46,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-19 15:40:46,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-19 15:40:46,215 INFO L87 Difference]: Start difference. First operand 639 states and 822 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:40:46,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:40:46,476 INFO L93 Difference]: Finished difference Result 1605 states and 2055 transitions. [2023-12-19 15:40:46,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-19 15:40:46,477 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 146 [2023-12-19 15:40:46,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:40:46,480 INFO L225 Difference]: With dead ends: 1605 [2023-12-19 15:40:46,480 INFO L226 Difference]: Without dead ends: 967 [2023-12-19 15:40:46,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-12-19 15:40:46,481 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 293 mSDsluCounter, 714 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 890 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 15:40:46,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [293 Valid, 890 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 15:40:46,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 967 states. [2023-12-19 15:40:46,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 967 to 843. [2023-12-19 15:40:46,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 843 states, 701 states have (on average 1.2139800285306706) internal successors, (851), 712 states have internal predecessors, (851), 110 states have call successors, (110), 31 states have call predecessors, (110), 31 states have return successors, (110), 99 states have call predecessors, (110), 110 states have call successors, (110) [2023-12-19 15:40:46,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 843 states to 843 states and 1071 transitions. [2023-12-19 15:40:46,546 INFO L78 Accepts]: Start accepts. Automaton has 843 states and 1071 transitions. Word has length 146 [2023-12-19 15:40:46,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:40:46,546 INFO L495 AbstractCegarLoop]: Abstraction has 843 states and 1071 transitions. [2023-12-19 15:40:46,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:40:46,546 INFO L276 IsEmpty]: Start isEmpty. Operand 843 states and 1071 transitions. [2023-12-19 15:40:46,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-12-19 15:40:46,547 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:40:46,547 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:40:46,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-12-19 15:40:46,547 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:40:46,547 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:40:46,548 INFO L85 PathProgramCache]: Analyzing trace with hash -927686783, now seen corresponding path program 1 times [2023-12-19 15:40:46,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:40:46,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671154587] [2023-12-19 15:40:46,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:40:46,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:40:46,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:46,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:40:46,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:46,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:40:46,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:46,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:40:46,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:46,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:40:46,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:46,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:40:46,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:46,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:40:46,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:46,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:40:46,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:46,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:40:46,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:46,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:40:46,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:46,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:40:46,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:46,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:40:46,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:46,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:40:46,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:46,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:40:46,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:46,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:40:46,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:46,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:40:46,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:46,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:40:46,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:46,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:40:46,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:46,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:40:46,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:46,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:40:46,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:46,753 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-19 15:40:46,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:40:46,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671154587] [2023-12-19 15:40:46,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671154587] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:40:46,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:40:46,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 15:40:46,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253708178] [2023-12-19 15:40:46,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:40:46,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 15:40:46,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:40:46,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 15:40:46,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-19 15:40:46,754 INFO L87 Difference]: Start difference. First operand 843 states and 1071 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:40:46,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:40:46,908 INFO L93 Difference]: Finished difference Result 1843 states and 2343 transitions. [2023-12-19 15:40:46,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 15:40:46,908 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 146 [2023-12-19 15:40:46,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:40:46,911 INFO L225 Difference]: With dead ends: 1843 [2023-12-19 15:40:46,911 INFO L226 Difference]: Without dead ends: 1001 [2023-12-19 15:40:46,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-12-19 15:40:46,913 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 219 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 15:40:46,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 617 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 15:40:46,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1001 states. [2023-12-19 15:40:46,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1001 to 853. [2023-12-19 15:40:46,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 853 states, 699 states have (on average 1.2074391988555078) internal successors, (844), 710 states have internal predecessors, (844), 118 states have call successors, (118), 35 states have call predecessors, (118), 35 states have return successors, (118), 107 states have call predecessors, (118), 118 states have call successors, (118) [2023-12-19 15:40:46,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 853 states to 853 states and 1080 transitions. [2023-12-19 15:40:46,988 INFO L78 Accepts]: Start accepts. Automaton has 853 states and 1080 transitions. Word has length 146 [2023-12-19 15:40:46,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:40:46,989 INFO L495 AbstractCegarLoop]: Abstraction has 853 states and 1080 transitions. [2023-12-19 15:40:46,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:40:46,989 INFO L276 IsEmpty]: Start isEmpty. Operand 853 states and 1080 transitions. [2023-12-19 15:40:46,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-12-19 15:40:46,990 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:40:46,990 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:40:46,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-12-19 15:40:46,991 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:40:46,991 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:40:46,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1247174415, now seen corresponding path program 1 times [2023-12-19 15:40:46,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:40:46,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98965613] [2023-12-19 15:40:46,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:40:46,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:40:47,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:47,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:40:47,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:47,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:40:47,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:47,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:40:47,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:47,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:40:47,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:47,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:40:47,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:47,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:40:47,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:47,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:40:47,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:47,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:40:47,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:47,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:40:47,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:47,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:40:47,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:47,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:40:47,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:47,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:40:47,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:47,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:40:47,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:47,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:40:47,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:47,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:40:47,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:47,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:40:47,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:47,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:40:47,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:47,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:40:47,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:47,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:40:47,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:47,176 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-19 15:40:47,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:40:47,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98965613] [2023-12-19 15:40:47,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98965613] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:40:47,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:40:47,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 15:40:47,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132455273] [2023-12-19 15:40:47,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:40:47,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 15:40:47,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:40:47,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 15:40:47,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-19 15:40:47,177 INFO L87 Difference]: Start difference. First operand 853 states and 1080 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:40:47,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:40:47,319 INFO L93 Difference]: Finished difference Result 1623 states and 2053 transitions. [2023-12-19 15:40:47,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 15:40:47,319 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 146 [2023-12-19 15:40:47,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:40:47,321 INFO L225 Difference]: With dead ends: 1623 [2023-12-19 15:40:47,321 INFO L226 Difference]: Without dead ends: 769 [2023-12-19 15:40:47,323 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-12-19 15:40:47,323 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 241 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 15:40:47,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 568 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 15:40:47,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 769 states. [2023-12-19 15:40:47,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 769 to 672. [2023-12-19 15:40:47,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 672 states, 563 states have (on average 1.2184724689165187) internal successors, (686), 571 states have internal predecessors, (686), 83 states have call successors, (83), 25 states have call predecessors, (83), 25 states have return successors, (83), 75 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-19 15:40:47,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 852 transitions. [2023-12-19 15:40:47,383 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 852 transitions. Word has length 146 [2023-12-19 15:40:47,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:40:47,383 INFO L495 AbstractCegarLoop]: Abstraction has 672 states and 852 transitions. [2023-12-19 15:40:47,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:40:47,384 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 852 transitions. [2023-12-19 15:40:47,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-12-19 15:40:47,385 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:40:47,385 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:40:47,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-12-19 15:40:47,385 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:40:47,385 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:40:47,385 INFO L85 PathProgramCache]: Analyzing trace with hash 1053648175, now seen corresponding path program 1 times [2023-12-19 15:40:47,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:40:47,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724858048] [2023-12-19 15:40:47,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:40:47,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:40:47,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:47,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:40:47,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:47,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:40:47,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:47,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:40:47,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:47,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:40:47,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:47,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:40:47,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:47,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:40:47,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:47,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:40:47,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:47,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:40:47,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:47,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:40:47,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:47,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:40:47,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:47,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:40:47,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:47,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:40:47,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:47,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:40:47,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:47,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:40:47,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:47,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:40:47,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:47,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:40:47,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:47,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:40:47,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:47,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:40:47,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:47,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:40:47,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:47,559 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-19 15:40:47,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:40:47,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724858048] [2023-12-19 15:40:47,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724858048] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:40:47,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:40:47,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 15:40:47,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698942642] [2023-12-19 15:40:47,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:40:47,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 15:40:47,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:40:47,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 15:40:47,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-19 15:40:47,561 INFO L87 Difference]: Start difference. First operand 672 states and 852 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:40:47,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:40:47,687 INFO L93 Difference]: Finished difference Result 1355 states and 1718 transitions. [2023-12-19 15:40:47,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 15:40:47,688 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 146 [2023-12-19 15:40:47,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:40:47,689 INFO L225 Difference]: With dead ends: 1355 [2023-12-19 15:40:47,690 INFO L226 Difference]: Without dead ends: 684 [2023-12-19 15:40:47,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-12-19 15:40:47,691 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 144 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 704 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 15:40:47,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 704 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 15:40:47,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 684 states. [2023-12-19 15:40:47,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 684 to 657. [2023-12-19 15:40:47,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 548 states have (on average 1.2153284671532847) internal successors, (666), 556 states have internal predecessors, (666), 83 states have call successors, (83), 25 states have call predecessors, (83), 25 states have return successors, (83), 75 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-19 15:40:47,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 832 transitions. [2023-12-19 15:40:47,747 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 832 transitions. Word has length 146 [2023-12-19 15:40:47,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:40:47,748 INFO L495 AbstractCegarLoop]: Abstraction has 657 states and 832 transitions. [2023-12-19 15:40:47,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:40:47,748 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 832 transitions. [2023-12-19 15:40:47,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-19 15:40:47,749 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:40:47,749 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:40:47,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-12-19 15:40:47,749 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:40:47,749 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:40:47,749 INFO L85 PathProgramCache]: Analyzing trace with hash 505163439, now seen corresponding path program 1 times [2023-12-19 15:40:47,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:40:47,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337057194] [2023-12-19 15:40:47,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:40:47,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:40:47,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:48,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:40:48,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:48,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:40:48,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:48,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:40:48,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:48,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:40:48,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:48,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:40:48,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:48,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:40:48,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:48,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:40:48,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:48,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:40:48,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:48,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:40:48,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:48,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:40:48,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:48,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:40:48,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:48,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:40:48,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:48,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:40:48,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:48,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:40:48,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:48,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:40:48,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:48,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:40:48,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:48,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:40:48,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:48,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:40:48,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:48,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:40:48,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:48,126 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-19 15:40:48,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:40:48,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337057194] [2023-12-19 15:40:48,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337057194] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:40:48,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:40:48,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-19 15:40:48,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080720618] [2023-12-19 15:40:48,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:40:48,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-19 15:40:48,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:40:48,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-19 15:40:48,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2023-12-19 15:40:48,127 INFO L87 Difference]: Start difference. First operand 657 states and 832 transitions. Second operand has 11 states, 11 states have (on average 5.0) internal successors, (55), 11 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:40:48,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:40:48,559 INFO L93 Difference]: Finished difference Result 1484 states and 1879 transitions. [2023-12-19 15:40:48,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-19 15:40:48,560 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.0) internal successors, (55), 11 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 147 [2023-12-19 15:40:48,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:40:48,562 INFO L225 Difference]: With dead ends: 1484 [2023-12-19 15:40:48,562 INFO L226 Difference]: Without dead ends: 828 [2023-12-19 15:40:48,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=266, Unknown=0, NotChecked=0, Total=342 [2023-12-19 15:40:48,564 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 189 mSDsluCounter, 1178 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 1336 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 15:40:48,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 1336 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 15:40:48,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 828 states. [2023-12-19 15:40:48,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 828 to 689. [2023-12-19 15:40:48,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 689 states, 580 states have (on average 1.2189655172413794) internal successors, (707), 588 states have internal predecessors, (707), 83 states have call successors, (83), 25 states have call predecessors, (83), 25 states have return successors, (83), 75 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-19 15:40:48,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 873 transitions. [2023-12-19 15:40:48,623 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 873 transitions. Word has length 147 [2023-12-19 15:40:48,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:40:48,623 INFO L495 AbstractCegarLoop]: Abstraction has 689 states and 873 transitions. [2023-12-19 15:40:48,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.0) internal successors, (55), 11 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:40:48,624 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 873 transitions. [2023-12-19 15:40:48,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-19 15:40:48,625 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:40:48,625 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:40:48,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-12-19 15:40:48,625 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:40:48,625 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:40:48,625 INFO L85 PathProgramCache]: Analyzing trace with hash -505953811, now seen corresponding path program 1 times [2023-12-19 15:40:48,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:40:48,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101234805] [2023-12-19 15:40:48,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:40:48,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:40:48,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:48,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:40:48,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:48,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:40:48,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:48,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:40:48,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:48,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:40:48,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:48,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:40:48,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:48,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:40:48,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:48,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:40:48,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:48,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:40:48,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:48,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:40:48,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:48,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:40:48,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:48,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:40:48,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:48,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:40:48,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:48,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:40:48,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:48,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:40:48,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:48,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:40:48,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:48,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:40:48,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:48,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:40:48,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:48,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:40:48,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:48,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:40:48,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:48,813 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-19 15:40:48,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:40:48,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101234805] [2023-12-19 15:40:48,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101234805] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:40:48,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:40:48,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 15:40:48,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473287020] [2023-12-19 15:40:48,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:40:48,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 15:40:48,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:40:48,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 15:40:48,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-19 15:40:48,814 INFO L87 Difference]: Start difference. First operand 689 states and 873 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:40:49,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:40:49,018 INFO L93 Difference]: Finished difference Result 1483 states and 1876 transitions. [2023-12-19 15:40:49,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 15:40:49,018 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 147 [2023-12-19 15:40:49,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:40:49,021 INFO L225 Difference]: With dead ends: 1483 [2023-12-19 15:40:49,021 INFO L226 Difference]: Without dead ends: 795 [2023-12-19 15:40:49,022 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-12-19 15:40:49,022 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 99 mSDsluCounter, 570 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 751 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 15:40:49,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 751 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 15:40:49,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 795 states. [2023-12-19 15:40:49,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 795 to 681. [2023-12-19 15:40:49,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 681 states, 572 states have (on average 1.2132867132867133) internal successors, (694), 580 states have internal predecessors, (694), 83 states have call successors, (83), 25 states have call predecessors, (83), 25 states have return successors, (83), 75 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-19 15:40:49,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 681 states to 681 states and 860 transitions. [2023-12-19 15:40:49,092 INFO L78 Accepts]: Start accepts. Automaton has 681 states and 860 transitions. Word has length 147 [2023-12-19 15:40:49,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:40:49,092 INFO L495 AbstractCegarLoop]: Abstraction has 681 states and 860 transitions. [2023-12-19 15:40:49,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:40:49,092 INFO L276 IsEmpty]: Start isEmpty. Operand 681 states and 860 transitions. [2023-12-19 15:40:49,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-19 15:40:49,095 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:40:49,095 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:40:49,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-12-19 15:40:49,095 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:40:49,095 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:40:49,095 INFO L85 PathProgramCache]: Analyzing trace with hash 862675825, now seen corresponding path program 1 times [2023-12-19 15:40:49,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:40:49,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187385665] [2023-12-19 15:40:49,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:40:49,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:40:49,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:49,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:40:49,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:49,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:40:49,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:49,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:40:49,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:49,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:40:49,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:49,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:40:49,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:49,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:40:49,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:49,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:40:49,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:49,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:40:49,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:49,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:40:49,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:49,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:40:49,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:49,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:40:49,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:49,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:40:49,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:49,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:40:49,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:49,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:40:49,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:49,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:40:49,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:49,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:40:49,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:49,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:40:49,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:49,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:40:49,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:49,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:40:49,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:49,381 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-19 15:40:49,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:40:49,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187385665] [2023-12-19 15:40:49,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187385665] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:40:49,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:40:49,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 15:40:49,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076587626] [2023-12-19 15:40:49,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:40:49,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 15:40:49,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:40:49,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 15:40:49,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-19 15:40:49,383 INFO L87 Difference]: Start difference. First operand 681 states and 860 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:40:49,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:40:49,599 INFO L93 Difference]: Finished difference Result 1428 states and 1800 transitions. [2023-12-19 15:40:49,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 15:40:49,599 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 147 [2023-12-19 15:40:49,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:40:49,602 INFO L225 Difference]: With dead ends: 1428 [2023-12-19 15:40:49,602 INFO L226 Difference]: Without dead ends: 748 [2023-12-19 15:40:49,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-12-19 15:40:49,603 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 89 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 630 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 15:40:49,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 630 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 15:40:49,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2023-12-19 15:40:49,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 681. [2023-12-19 15:40:49,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 681 states, 572 states have (on average 1.2097902097902098) internal successors, (692), 580 states have internal predecessors, (692), 83 states have call successors, (83), 25 states have call predecessors, (83), 25 states have return successors, (83), 75 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-19 15:40:49,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 681 states to 681 states and 858 transitions. [2023-12-19 15:40:49,661 INFO L78 Accepts]: Start accepts. Automaton has 681 states and 858 transitions. Word has length 147 [2023-12-19 15:40:49,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:40:49,661 INFO L495 AbstractCegarLoop]: Abstraction has 681 states and 858 transitions. [2023-12-19 15:40:49,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:40:49,661 INFO L276 IsEmpty]: Start isEmpty. Operand 681 states and 858 transitions. [2023-12-19 15:40:49,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-19 15:40:49,662 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:40:49,662 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:40:49,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-12-19 15:40:49,662 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:40:49,662 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:40:49,663 INFO L85 PathProgramCache]: Analyzing trace with hash -148441425, now seen corresponding path program 1 times [2023-12-19 15:40:49,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:40:49,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549586200] [2023-12-19 15:40:49,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:40:49,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:40:49,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:49,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:40:49,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:49,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:40:49,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:49,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:40:49,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:49,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:40:49,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:49,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:40:49,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:49,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:40:49,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:49,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:40:49,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:49,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:40:49,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:49,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:40:49,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:49,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:40:49,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:49,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:40:49,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:49,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:40:49,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:49,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:40:49,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:49,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:40:49,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:49,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:40:49,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:49,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:40:49,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:49,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:40:49,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:49,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:40:49,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:49,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:40:49,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:49,918 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-19 15:40:49,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:40:49,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549586200] [2023-12-19 15:40:49,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549586200] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:40:49,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:40:49,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-19 15:40:49,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499813817] [2023-12-19 15:40:49,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:40:49,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-19 15:40:49,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:40:49,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-19 15:40:49,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-19 15:40:49,920 INFO L87 Difference]: Start difference. First operand 681 states and 858 transitions. Second operand has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:40:50,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:40:50,164 INFO L93 Difference]: Finished difference Result 1498 states and 1890 transitions. [2023-12-19 15:40:50,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-19 15:40:50,164 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 147 [2023-12-19 15:40:50,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:40:50,167 INFO L225 Difference]: With dead ends: 1498 [2023-12-19 15:40:50,167 INFO L226 Difference]: Without dead ends: 818 [2023-12-19 15:40:50,168 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2023-12-19 15:40:50,168 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 217 mSDsluCounter, 1679 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 1921 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 15:40:50,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 1921 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 15:40:50,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2023-12-19 15:40:50,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 670. [2023-12-19 15:40:50,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 561 states have (on average 1.2067736185383244) internal successors, (677), 569 states have internal predecessors, (677), 83 states have call successors, (83), 25 states have call predecessors, (83), 25 states have return successors, (83), 75 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-19 15:40:50,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 843 transitions. [2023-12-19 15:40:50,228 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 843 transitions. Word has length 147 [2023-12-19 15:40:50,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:40:50,229 INFO L495 AbstractCegarLoop]: Abstraction has 670 states and 843 transitions. [2023-12-19 15:40:50,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:40:50,229 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 843 transitions. [2023-12-19 15:40:50,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-19 15:40:50,230 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:40:50,230 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:40:50,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-12-19 15:40:50,230 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:40:50,230 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:40:50,230 INFO L85 PathProgramCache]: Analyzing trace with hash -976809857, now seen corresponding path program 1 times [2023-12-19 15:40:50,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:40:50,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55555720] [2023-12-19 15:40:50,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:40:50,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:40:50,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:51,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:40:51,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:51,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:40:51,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:51,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:40:51,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:51,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:40:51,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:51,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:40:51,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:51,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:40:51,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:51,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:40:51,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:51,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:40:51,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:51,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:40:51,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:51,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:40:51,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:51,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:40:51,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:51,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:40:51,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:51,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:40:51,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:51,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:40:51,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:51,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:40:51,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:51,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:40:51,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:51,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:40:51,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:51,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:40:51,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:51,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:40:51,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:51,088 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-19 15:40:51,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:40:51,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55555720] [2023-12-19 15:40:51,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55555720] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:40:51,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:40:51,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-19 15:40:51,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261644457] [2023-12-19 15:40:51,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:40:51,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-19 15:40:51,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:40:51,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-19 15:40:51,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-19 15:40:51,091 INFO L87 Difference]: Start difference. First operand 670 states and 843 transitions. Second operand has 11 states, 10 states have (on average 5.5) internal successors, (55), 11 states have internal predecessors, (55), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2023-12-19 15:40:51,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:40:51,595 INFO L93 Difference]: Finished difference Result 1134 states and 1417 transitions. [2023-12-19 15:40:51,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-19 15:40:51,595 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.5) internal successors, (55), 11 states have internal predecessors, (55), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 147 [2023-12-19 15:40:51,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:40:51,598 INFO L225 Difference]: With dead ends: 1134 [2023-12-19 15:40:51,598 INFO L226 Difference]: Without dead ends: 1132 [2023-12-19 15:40:51,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=300, Unknown=0, NotChecked=0, Total=380 [2023-12-19 15:40:51,601 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 412 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 712 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 15:40:51,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [412 Valid, 712 Invalid, 491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 15:40:51,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1132 states. [2023-12-19 15:40:51,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1132 to 922. [2023-12-19 15:40:51,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 922 states, 813 states have (on average 1.2115621156211562) internal successors, (985), 821 states have internal predecessors, (985), 83 states have call successors, (83), 25 states have call predecessors, (83), 25 states have return successors, (83), 75 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-19 15:40:51,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 922 states to 922 states and 1151 transitions. [2023-12-19 15:40:51,665 INFO L78 Accepts]: Start accepts. Automaton has 922 states and 1151 transitions. Word has length 147 [2023-12-19 15:40:51,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:40:51,666 INFO L495 AbstractCegarLoop]: Abstraction has 922 states and 1151 transitions. [2023-12-19 15:40:51,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.5) internal successors, (55), 11 states have internal predecessors, (55), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2023-12-19 15:40:51,666 INFO L276 IsEmpty]: Start isEmpty. Operand 922 states and 1151 transitions. [2023-12-19 15:40:51,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-19 15:40:51,667 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:40:51,667 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:40:51,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-12-19 15:40:51,667 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:40:51,667 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:40:51,668 INFO L85 PathProgramCache]: Analyzing trace with hash -976750275, now seen corresponding path program 1 times [2023-12-19 15:40:51,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:40:51,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411129743] [2023-12-19 15:40:51,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:40:51,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:40:51,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:51,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:40:51,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:51,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:40:51,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:51,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:40:51,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:51,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:40:51,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:51,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:40:51,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:51,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:40:51,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:51,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:40:51,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:51,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:40:51,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:51,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:40:51,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:51,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:40:51,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:51,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:40:51,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:51,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:40:51,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:51,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:40:51,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:51,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:40:51,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:51,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:40:51,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:51,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:40:51,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:51,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:40:51,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:51,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:40:51,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:51,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:40:51,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:51,830 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-19 15:40:51,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:40:51,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411129743] [2023-12-19 15:40:51,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411129743] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:40:51,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:40:51,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 15:40:51,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166799958] [2023-12-19 15:40:51,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:40:51,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 15:40:51,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:40:51,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 15:40:51,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:40:51,832 INFO L87 Difference]: Start difference. First operand 922 states and 1151 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:40:51,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:40:51,960 INFO L93 Difference]: Finished difference Result 1907 states and 2377 transitions. [2023-12-19 15:40:51,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 15:40:51,961 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 147 [2023-12-19 15:40:51,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:40:51,963 INFO L225 Difference]: With dead ends: 1907 [2023-12-19 15:40:51,963 INFO L226 Difference]: Without dead ends: 986 [2023-12-19 15:40:51,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 40 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 15:40:51,965 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 93 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 15:40:51,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 621 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 15:40:51,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 986 states. [2023-12-19 15:40:52,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 986 to 976. [2023-12-19 15:40:52,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 976 states, 845 states have (on average 1.183431952662722) internal successors, (1000), 854 states have internal predecessors, (1000), 100 states have call successors, (100), 30 states have call predecessors, (100), 30 states have return successors, (100), 91 states have call predecessors, (100), 100 states have call successors, (100) [2023-12-19 15:40:52,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 976 states to 976 states and 1200 transitions. [2023-12-19 15:40:52,057 INFO L78 Accepts]: Start accepts. Automaton has 976 states and 1200 transitions. Word has length 147 [2023-12-19 15:40:52,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:40:52,057 INFO L495 AbstractCegarLoop]: Abstraction has 976 states and 1200 transitions. [2023-12-19 15:40:52,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:40:52,057 INFO L276 IsEmpty]: Start isEmpty. Operand 976 states and 1200 transitions. [2023-12-19 15:40:52,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-19 15:40:52,059 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:40:52,059 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:40:52,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-12-19 15:40:52,059 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:40:52,059 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:40:52,059 INFO L85 PathProgramCache]: Analyzing trace with hash -919491973, now seen corresponding path program 1 times [2023-12-19 15:40:52,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:40:52,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518357227] [2023-12-19 15:40:52,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:40:52,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:40:52,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:52,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:40:52,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:52,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:40:52,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:52,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:40:52,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:52,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:40:52,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:52,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:40:52,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:52,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:40:52,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:52,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:40:52,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:52,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:40:52,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:52,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:40:52,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:52,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:40:52,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:52,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:40:52,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:52,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:40:52,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:52,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:40:52,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:52,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:40:52,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:52,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:40:52,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:52,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:40:52,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:52,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:40:52,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:52,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:40:52,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:52,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:40:52,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:52,163 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-19 15:40:52,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:40:52,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518357227] [2023-12-19 15:40:52,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518357227] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:40:52,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:40:52,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 15:40:52,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323613687] [2023-12-19 15:40:52,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:40:52,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 15:40:52,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:40:52,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 15:40:52,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:40:52,166 INFO L87 Difference]: Start difference. First operand 976 states and 1200 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:40:52,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:40:52,258 INFO L93 Difference]: Finished difference Result 2003 states and 2455 transitions. [2023-12-19 15:40:52,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 15:40:52,258 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 147 [2023-12-19 15:40:52,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:40:52,261 INFO L225 Difference]: With dead ends: 2003 [2023-12-19 15:40:52,261 INFO L226 Difference]: Without dead ends: 1078 [2023-12-19 15:40:52,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 41 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 15:40:52,263 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 16 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 15:40:52,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 507 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 15:40:52,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1078 states. [2023-12-19 15:40:52,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1078 to 1027. [2023-12-19 15:40:52,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1027 states, 896 states have (on average 1.1729910714285714) internal successors, (1051), 905 states have internal predecessors, (1051), 100 states have call successors, (100), 30 states have call predecessors, (100), 30 states have return successors, (100), 91 states have call predecessors, (100), 100 states have call successors, (100) [2023-12-19 15:40:52,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1027 states to 1027 states and 1251 transitions. [2023-12-19 15:40:52,341 INFO L78 Accepts]: Start accepts. Automaton has 1027 states and 1251 transitions. Word has length 147 [2023-12-19 15:40:52,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:40:52,341 INFO L495 AbstractCegarLoop]: Abstraction has 1027 states and 1251 transitions. [2023-12-19 15:40:52,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:40:52,341 INFO L276 IsEmpty]: Start isEmpty. Operand 1027 states and 1251 transitions. [2023-12-19 15:40:52,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-19 15:40:52,343 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:40:52,343 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:40:52,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-12-19 15:40:52,343 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:40:52,343 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:40:52,343 INFO L85 PathProgramCache]: Analyzing trace with hash -836261247, now seen corresponding path program 1 times [2023-12-19 15:40:52,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:40:52,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103921075] [2023-12-19 15:40:52,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:40:52,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:40:52,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:52,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:40:52,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:52,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:40:52,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:52,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:40:52,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:52,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:40:52,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:52,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:40:52,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:52,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:40:52,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:52,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:40:52,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:52,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:40:52,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:52,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:40:52,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:52,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:40:52,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:52,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:40:52,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:52,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:40:52,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:52,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:40:52,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:52,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:40:52,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:52,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:40:52,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:52,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:40:52,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:52,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:40:52,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:52,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:40:52,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:52,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:40:52,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:52,917 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-19 15:40:52,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:40:52,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103921075] [2023-12-19 15:40:52,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103921075] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:40:52,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:40:52,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-19 15:40:52,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554877442] [2023-12-19 15:40:52,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:40:52,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-19 15:40:52,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:40:52,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-19 15:40:52,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-19 15:40:52,919 INFO L87 Difference]: Start difference. First operand 1027 states and 1251 transitions. Second operand has 11 states, 9 states have (on average 6.111111111111111) internal successors, (55), 10 states have internal predecessors, (55), 6 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 5 states have call predecessors, (19), 6 states have call successors, (19) [2023-12-19 15:40:53,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:40:53,425 INFO L93 Difference]: Finished difference Result 2590 states and 3136 transitions. [2023-12-19 15:40:53,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-19 15:40:53,425 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 6.111111111111111) internal successors, (55), 10 states have internal predecessors, (55), 6 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 5 states have call predecessors, (19), 6 states have call successors, (19) Word has length 147 [2023-12-19 15:40:53,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:40:53,441 INFO L225 Difference]: With dead ends: 2590 [2023-12-19 15:40:53,441 INFO L226 Difference]: Without dead ends: 1614 [2023-12-19 15:40:53,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=83, Invalid=223, Unknown=0, NotChecked=0, Total=306 [2023-12-19 15:40:53,443 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 377 mSDsluCounter, 554 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 377 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 15:40:53,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [377 Valid, 709 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 400 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 15:40:53,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1614 states. [2023-12-19 15:40:53,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1614 to 1154. [2023-12-19 15:40:53,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1154 states, 1030 states have (on average 1.162135922330097) internal successors, (1197), 1038 states have internal predecessors, (1197), 94 states have call successors, (94), 29 states have call predecessors, (94), 29 states have return successors, (94), 86 states have call predecessors, (94), 94 states have call successors, (94) [2023-12-19 15:40:53,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1154 states to 1154 states and 1385 transitions. [2023-12-19 15:40:53,535 INFO L78 Accepts]: Start accepts. Automaton has 1154 states and 1385 transitions. Word has length 147 [2023-12-19 15:40:53,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:40:53,535 INFO L495 AbstractCegarLoop]: Abstraction has 1154 states and 1385 transitions. [2023-12-19 15:40:53,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 6.111111111111111) internal successors, (55), 10 states have internal predecessors, (55), 6 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 5 states have call predecessors, (19), 6 states have call successors, (19) [2023-12-19 15:40:53,535 INFO L276 IsEmpty]: Start isEmpty. Operand 1154 states and 1385 transitions. [2023-12-19 15:40:53,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-19 15:40:53,540 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:40:53,540 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:40:53,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2023-12-19 15:40:53,540 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:40:53,540 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:40:53,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1229288257, now seen corresponding path program 1 times [2023-12-19 15:40:53,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:40:53,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672845264] [2023-12-19 15:40:53,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:40:53,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:40:53,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:53,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:40:53,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:53,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:40:53,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:53,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:40:53,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:53,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:40:53,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:53,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:40:53,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:53,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:40:53,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:53,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:40:53,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:53,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:40:53,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:53,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:40:53,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:53,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:40:53,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:53,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:40:53,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:53,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:40:53,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:53,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:40:53,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:53,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:40:53,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:53,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:40:53,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:53,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:40:53,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:53,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:40:53,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:53,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:40:53,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:53,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:40:53,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:53,972 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-19 15:40:53,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:40:53,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672845264] [2023-12-19 15:40:53,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672845264] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:40:53,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:40:53,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-19 15:40:53,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561592612] [2023-12-19 15:40:53,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:40:53,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 15:40:53,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:40:53,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 15:40:53,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-12-19 15:40:53,975 INFO L87 Difference]: Start difference. First operand 1154 states and 1385 transitions. Second operand has 9 states, 8 states have (on average 6.875) internal successors, (55), 9 states have internal predecessors, (55), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2023-12-19 15:40:54,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:40:54,230 INFO L93 Difference]: Finished difference Result 1172 states and 1410 transitions. [2023-12-19 15:40:54,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 15:40:54,230 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.875) internal successors, (55), 9 states have internal predecessors, (55), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 147 [2023-12-19 15:40:54,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:40:54,232 INFO L225 Difference]: With dead ends: 1172 [2023-12-19 15:40:54,233 INFO L226 Difference]: Without dead ends: 1170 [2023-12-19 15:40:54,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2023-12-19 15:40:54,233 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 176 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 500 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 15:40:54,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 500 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 15:40:54,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1170 states. [2023-12-19 15:40:54,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1170 to 908. [2023-12-19 15:40:54,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 908 states, 784 states have (on average 1.1696428571428572) internal successors, (917), 792 states have internal predecessors, (917), 94 states have call successors, (94), 29 states have call predecessors, (94), 29 states have return successors, (94), 86 states have call predecessors, (94), 94 states have call successors, (94) [2023-12-19 15:40:54,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 908 states to 908 states and 1105 transitions. [2023-12-19 15:40:54,312 INFO L78 Accepts]: Start accepts. Automaton has 908 states and 1105 transitions. Word has length 147 [2023-12-19 15:40:54,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:40:54,313 INFO L495 AbstractCegarLoop]: Abstraction has 908 states and 1105 transitions. [2023-12-19 15:40:54,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.875) internal successors, (55), 9 states have internal predecessors, (55), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2023-12-19 15:40:54,313 INFO L276 IsEmpty]: Start isEmpty. Operand 908 states and 1105 transitions. [2023-12-19 15:40:54,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-12-19 15:40:54,314 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:40:54,314 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:40:54,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2023-12-19 15:40:54,314 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:40:54,314 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:40:54,315 INFO L85 PathProgramCache]: Analyzing trace with hash -1708444810, now seen corresponding path program 1 times [2023-12-19 15:40:54,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:40:54,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375829872] [2023-12-19 15:40:54,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:40:54,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:40:54,330 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:40:54,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [990894138] [2023-12-19 15:40:54,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:40:54,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:40:54,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:40:54,332 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 15:40:54,334 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 15:40:54,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:54,562 INFO L262 TraceCheckSpWp]: Trace formula consists of 611 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-19 15:40:54,565 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:40:54,604 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 15:40:54,613 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 15:40:54,624 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-19 15:40:54,625 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:40:54,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:40:54,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375829872] [2023-12-19 15:40:54,625 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:40:54,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [990894138] [2023-12-19 15:40:54,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [990894138] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:40:54,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:40:54,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 15:40:54,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339043447] [2023-12-19 15:40:54,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:40:54,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 15:40:54,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:40:54,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 15:40:54,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-19 15:40:54,626 INFO L87 Difference]: Start difference. First operand 908 states and 1105 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:40:54,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:40:54,893 INFO L93 Difference]: Finished difference Result 2173 states and 2611 transitions. [2023-12-19 15:40:54,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 15:40:54,894 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 149 [2023-12-19 15:40:54,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:40:54,896 INFO L225 Difference]: With dead ends: 2173 [2023-12-19 15:40:54,896 INFO L226 Difference]: Without dead ends: 1316 [2023-12-19 15:40:54,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-12-19 15:40:54,897 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 79 mSDsluCounter, 507 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 15:40:54,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 621 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 15:40:54,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1316 states. [2023-12-19 15:40:54,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1316 to 1074. [2023-12-19 15:40:54,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1074 states, 950 states have (on average 1.1505263157894736) internal successors, (1093), 958 states have internal predecessors, (1093), 94 states have call successors, (94), 29 states have call predecessors, (94), 29 states have return successors, (94), 86 states have call predecessors, (94), 94 states have call successors, (94) [2023-12-19 15:40:54,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1074 states to 1074 states and 1281 transitions. [2023-12-19 15:40:54,979 INFO L78 Accepts]: Start accepts. Automaton has 1074 states and 1281 transitions. Word has length 149 [2023-12-19 15:40:54,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:40:54,980 INFO L495 AbstractCegarLoop]: Abstraction has 1074 states and 1281 transitions. [2023-12-19 15:40:54,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:40:54,980 INFO L276 IsEmpty]: Start isEmpty. Operand 1074 states and 1281 transitions. [2023-12-19 15:40:54,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-12-19 15:40:54,981 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:40:54,981 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:40:54,988 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 15:40:55,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:40:55,188 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:40:55,188 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:40:55,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1450279372, now seen corresponding path program 1 times [2023-12-19 15:40:55,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:40:55,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171461475] [2023-12-19 15:40:55,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:40:55,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:40:55,210 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:40:55,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1679184621] [2023-12-19 15:40:55,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:40:55,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:40:55,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:40:55,211 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 15:40:55,228 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 15:40:55,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:55,454 INFO L262 TraceCheckSpWp]: Trace formula consists of 613 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-19 15:40:55,457 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:40:55,511 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 25 [2023-12-19 15:40:55,514 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 29 treesize of output 21 [2023-12-19 15:40:55,516 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 15:40:55,523 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-19 15:40:55,523 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:40:55,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:40:55,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171461475] [2023-12-19 15:40:55,523 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:40:55,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1679184621] [2023-12-19 15:40:55,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1679184621] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:40:55,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:40:55,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 15:40:55,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192323443] [2023-12-19 15:40:55,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:40:55,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 15:40:55,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:40:55,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 15:40:55,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:40:55,524 INFO L87 Difference]: Start difference. First operand 1074 states and 1281 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:40:55,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:40:55,774 INFO L93 Difference]: Finished difference Result 2315 states and 2755 transitions. [2023-12-19 15:40:55,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 15:40:55,775 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 149 [2023-12-19 15:40:55,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:40:55,777 INFO L225 Difference]: With dead ends: 2315 [2023-12-19 15:40:55,777 INFO L226 Difference]: Without dead ends: 1292 [2023-12-19 15:40:55,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 145 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 15:40:55,778 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 62 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 15:40:55,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 483 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 15:40:55,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1292 states. [2023-12-19 15:40:55,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1292 to 1074. [2023-12-19 15:40:55,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1074 states, 950 states have (on average 1.1336842105263158) internal successors, (1077), 958 states have internal predecessors, (1077), 94 states have call successors, (94), 29 states have call predecessors, (94), 29 states have return successors, (94), 86 states have call predecessors, (94), 94 states have call successors, (94) [2023-12-19 15:40:55,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1074 states to 1074 states and 1265 transitions. [2023-12-19 15:40:55,861 INFO L78 Accepts]: Start accepts. Automaton has 1074 states and 1265 transitions. Word has length 149 [2023-12-19 15:40:55,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:40:55,862 INFO L495 AbstractCegarLoop]: Abstraction has 1074 states and 1265 transitions. [2023-12-19 15:40:55,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:40:55,862 INFO L276 IsEmpty]: Start isEmpty. Operand 1074 states and 1265 transitions. [2023-12-19 15:40:55,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-12-19 15:40:55,863 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:40:55,863 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:40:55,872 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-19 15:40:56,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:40:56,078 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:40:56,078 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:40:56,078 INFO L85 PathProgramCache]: Analyzing trace with hash 472948662, now seen corresponding path program 1 times [2023-12-19 15:40:56,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:40:56,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363907117] [2023-12-19 15:40:56,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:40:56,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:40:56,098 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:40:56,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [62427862] [2023-12-19 15:40:56,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:40:56,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:40:56,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:40:56,100 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 15:40:56,102 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 15:40:56,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:56,327 INFO L262 TraceCheckSpWp]: Trace formula consists of 615 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-19 15:40:56,332 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:40:56,384 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 25 [2023-12-19 15:40:56,403 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 31 [2023-12-19 15:40:56,418 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 15:40:56,429 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-19 15:40:56,430 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:40:56,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:40:56,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363907117] [2023-12-19 15:40:56,430 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:40:56,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [62427862] [2023-12-19 15:40:56,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [62427862] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:40:56,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:40:56,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 15:40:56,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888510707] [2023-12-19 15:40:56,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:40:56,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 15:40:56,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:40:56,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 15:40:56,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-19 15:40:56,431 INFO L87 Difference]: Start difference. First operand 1074 states and 1265 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:40:56,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:40:56,747 INFO L93 Difference]: Finished difference Result 2487 states and 2882 transitions. [2023-12-19 15:40:56,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 15:40:56,748 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 149 [2023-12-19 15:40:56,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:40:56,750 INFO L225 Difference]: With dead ends: 2487 [2023-12-19 15:40:56,750 INFO L226 Difference]: Without dead ends: 1464 [2023-12-19 15:40:56,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-12-19 15:40:56,752 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 55 mSDsluCounter, 652 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 820 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 15:40:56,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 820 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 15:40:56,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1464 states. [2023-12-19 15:40:56,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1464 to 1357. [2023-12-19 15:40:56,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1357 states, 1203 states have (on average 1.1072319201995013) internal successors, (1332), 1216 states have internal predecessors, (1332), 114 states have call successors, (114), 39 states have call predecessors, (114), 39 states have return successors, (114), 101 states have call predecessors, (114), 114 states have call successors, (114) [2023-12-19 15:40:56,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1357 states to 1357 states and 1560 transitions. [2023-12-19 15:40:56,898 INFO L78 Accepts]: Start accepts. Automaton has 1357 states and 1560 transitions. Word has length 149 [2023-12-19 15:40:56,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:40:56,899 INFO L495 AbstractCegarLoop]: Abstraction has 1357 states and 1560 transitions. [2023-12-19 15:40:56,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:40:56,899 INFO L276 IsEmpty]: Start isEmpty. Operand 1357 states and 1560 transitions. [2023-12-19 15:40:56,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-12-19 15:40:56,901 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:40:56,901 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:40:56,928 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-12-19 15:40:57,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2023-12-19 15:40:57,109 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:40:57,109 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:40:57,109 INFO L85 PathProgramCache]: Analyzing trace with hash -2010183541, now seen corresponding path program 1 times [2023-12-19 15:40:57,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:40:57,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335955350] [2023-12-19 15:40:57,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:40:57,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:40:57,127 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:40:57,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [124539256] [2023-12-19 15:40:57,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:40:57,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:40:57,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:40:57,129 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 15:40:57,153 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 15:40:57,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:40:57,518 INFO L262 TraceCheckSpWp]: Trace formula consists of 622 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-19 15:40:57,522 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:40:59,514 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 51 treesize of output 43 [2023-12-19 15:40:59,534 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 34 [2023-12-19 15:40:59,539 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 27 [2023-12-19 15:40:59,542 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 23 [2023-12-19 15:40:59,761 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-19 15:40:59,761 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:40:59,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:40:59,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335955350] [2023-12-19 15:40:59,762 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:40:59,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [124539256] [2023-12-19 15:40:59,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [124539256] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:40:59,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:40:59,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 15:40:59,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087016687] [2023-12-19 15:40:59,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:40:59,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 15:40:59,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:40:59,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 15:40:59,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:40:59,763 INFO L87 Difference]: Start difference. First operand 1357 states and 1560 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:41:04,829 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-19 15:41:08,965 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-19 15:41:11,644 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-19 15:41:15,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-19 15:41:18,442 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-19 15:41:20,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-19 15:41:22,586 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-19 15:41:24,791 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-19 15:41:24,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:41:24,948 INFO L93 Difference]: Finished difference Result 3289 states and 3732 transitions. [2023-12-19 15:41:24,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 15:41:24,948 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 150 [2023-12-19 15:41:24,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:41:24,951 INFO L225 Difference]: With dead ends: 3289 [2023-12-19 15:41:24,951 INFO L226 Difference]: Without dead ends: 1983 [2023-12-19 15:41:24,952 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-19 15:41:24,953 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 57 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.6s IncrementalHoareTripleChecker+Time [2023-12-19 15:41:24,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 515 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 161 Invalid, 2 Unknown, 0 Unchecked, 24.6s Time] [2023-12-19 15:41:24,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1983 states. [2023-12-19 15:41:25,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1983 to 1733. [2023-12-19 15:41:25,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1733 states, 1578 states have (on average 1.0956907477820026) internal successors, (1729), 1591 states have internal predecessors, (1729), 114 states have call successors, (114), 40 states have call predecessors, (114), 40 states have return successors, (114), 101 states have call predecessors, (114), 114 states have call successors, (114) [2023-12-19 15:41:25,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1733 states to 1733 states and 1957 transitions. [2023-12-19 15:41:25,084 INFO L78 Accepts]: Start accepts. Automaton has 1733 states and 1957 transitions. Word has length 150 [2023-12-19 15:41:25,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:41:25,084 INFO L495 AbstractCegarLoop]: Abstraction has 1733 states and 1957 transitions. [2023-12-19 15:41:25,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:41:25,084 INFO L276 IsEmpty]: Start isEmpty. Operand 1733 states and 1957 transitions. [2023-12-19 15:41:25,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-12-19 15:41:25,086 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:41:25,086 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:41:25,095 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 15:41:25,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:41:25,294 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:41:25,294 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:41:25,294 INFO L85 PathProgramCache]: Analyzing trace with hash 1891756745, now seen corresponding path program 1 times [2023-12-19 15:41:25,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:41:25,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423162327] [2023-12-19 15:41:25,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:41:25,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:41:25,310 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:41:25,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1327271595] [2023-12-19 15:41:25,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:41:25,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:41:25,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:41:25,311 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 15:41:25,313 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 15:41:25,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:41:25,563 INFO L262 TraceCheckSpWp]: Trace formula consists of 620 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-19 15:41:25,566 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:41:25,594 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-19 15:41:25,594 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:41:25,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:41:25,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423162327] [2023-12-19 15:41:25,594 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:41:25,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1327271595] [2023-12-19 15:41:25,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1327271595] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:41:25,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:41:25,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 15:41:25,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975930061] [2023-12-19 15:41:25,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:41:25,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 15:41:25,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:41:25,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 15:41:25,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-19 15:41:25,596 INFO L87 Difference]: Start difference. First operand 1733 states and 1957 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:41:25,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:41:25,771 INFO L93 Difference]: Finished difference Result 3486 states and 3925 transitions. [2023-12-19 15:41:25,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 15:41:25,772 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 150 [2023-12-19 15:41:25,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:41:25,774 INFO L225 Difference]: With dead ends: 3486 [2023-12-19 15:41:25,774 INFO L226 Difference]: Without dead ends: 1808 [2023-12-19 15:41:25,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-12-19 15:41:25,776 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 23 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 15:41:25,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 634 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 15:41:25,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1808 states. [2023-12-19 15:41:25,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1808 to 1706. [2023-12-19 15:41:25,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1706 states, 1551 states have (on average 1.0909090909090908) internal successors, (1692), 1564 states have internal predecessors, (1692), 114 states have call successors, (114), 40 states have call predecessors, (114), 40 states have return successors, (114), 101 states have call predecessors, (114), 114 states have call successors, (114) [2023-12-19 15:41:25,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1706 states to 1706 states and 1920 transitions. [2023-12-19 15:41:25,908 INFO L78 Accepts]: Start accepts. Automaton has 1706 states and 1920 transitions. Word has length 150 [2023-12-19 15:41:25,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:41:25,909 INFO L495 AbstractCegarLoop]: Abstraction has 1706 states and 1920 transitions. [2023-12-19 15:41:25,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:41:25,909 INFO L276 IsEmpty]: Start isEmpty. Operand 1706 states and 1920 transitions. [2023-12-19 15:41:25,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-12-19 15:41:25,910 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:41:25,911 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:41:25,920 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 15:41:26,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:41:26,118 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:41:26,118 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:41:26,118 INFO L85 PathProgramCache]: Analyzing trace with hash -2072223155, now seen corresponding path program 1 times [2023-12-19 15:41:26,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:41:26,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605911378] [2023-12-19 15:41:26,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:41:26,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:41:26,134 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:41:26,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [914234993] [2023-12-19 15:41:26,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:41:26,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:41:26,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:41:26,136 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 15:41:26,161 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 15:41:26,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:41:26,383 INFO L262 TraceCheckSpWp]: Trace formula consists of 626 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-19 15:41:26,385 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:41:26,398 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-19 15:41:26,446 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2023-12-19 15:41:26,447 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 15:41:26,543 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-19 15:41:26,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:41:26,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605911378] [2023-12-19 15:41:26,544 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:41:26,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [914234993] [2023-12-19 15:41:26,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [914234993] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-19 15:41:26,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 15:41:26,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 12 [2023-12-19 15:41:26,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174055496] [2023-12-19 15:41:26,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:41:26,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 15:41:26,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:41:26,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 15:41:26,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-19 15:41:26,545 INFO L87 Difference]: Start difference. First operand 1706 states and 1920 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:41:26,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:41:26,974 INFO L93 Difference]: Finished difference Result 4697 states and 5273 transitions. [2023-12-19 15:41:26,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-19 15:41:26,975 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 150 [2023-12-19 15:41:26,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:41:26,975 INFO L225 Difference]: With dead ends: 4697 [2023-12-19 15:41:26,975 INFO L226 Difference]: Without dead ends: 0 [2023-12-19 15:41:26,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=112, Invalid=394, Unknown=0, NotChecked=0, Total=506 [2023-12-19 15:41:26,980 INFO L413 NwaCegarLoop]: 251 mSDtfsCounter, 138 mSDsluCounter, 1079 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 1330 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 15:41:26,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 1330 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 15:41:26,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-19 15:41:26,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-19 15:41:26,980 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 15:41:26,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-19 15:41:26,981 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 150 [2023-12-19 15:41:26,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:41:26,981 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-19 15:41:26,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-19 15:41:26,981 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-19 15:41:26,981 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-19 15:41:26,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-19 15:41:26,997 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 15:41:27,191 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,SelfDestructingSolverStorable48 [2023-12-19 15:41:27,193 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. Received shutdown request... [2023-12-19 15:54:37,323 WARN L619 AbstractCegarLoop]: Verification canceled: while PolyPacSimplificationTermWalker was simplifying a ∨-54-10-5-13-4-13-6-13-6-13-6-12-6-12-6-12-6-12-6-12-6-12-6-12-6-12-6-9-5-9-5-9-5-9-5-9-5-9-5-9-3-9-2-9-1 term,while PolyPacSimplificationTermWalker was simplifying 7 xjuncts wrt. a ∧-110-10-10-13-10-13-10-13-10-13-9-12-8-12-6-12-6-12-6-12-6-12-6-12-6-12-5-9-5-9-5-9-5-9-5-9-5-9-3-9-2-9-1 context. [2023-12-19 15:54:37,324 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-19 15:54:37,346 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 15:54:37,358 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 15:54:37,359 INFO L158 Benchmark]: Toolchain (without parser) took 858685.20ms. Allocated memory was 215.0MB in the beginning and 1.1GB in the end (delta: 882.9MB). Free memory was 166.6MB in the beginning and 915.9MB in the end (delta: -749.3MB). Peak memory consumption was 133.7MB. Max. memory is 8.0GB. [2023-12-19 15:54:37,359 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 215.0MB. Free memory was 168.9MB in the beginning and 168.8MB in the end (delta: 147.0kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-19 15:54:37,359 INFO L158 Benchmark]: CACSL2BoogieTranslator took 302.85ms. Allocated memory is still 215.0MB. Free memory was 166.6MB in the beginning and 151.5MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2023-12-19 15:54:37,360 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.64ms. Allocated memory is still 215.0MB. Free memory was 151.5MB in the beginning and 147.0MB in the end (delta: 4.6MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-19 15:54:37,360 INFO L158 Benchmark]: Boogie Preprocessor took 69.92ms. Allocated memory is still 215.0MB. Free memory was 147.0MB in the beginning and 141.7MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-19 15:54:37,360 INFO L158 Benchmark]: RCFGBuilder took 675.06ms. Allocated memory was 215.0MB in the beginning and 262.1MB in the end (delta: 47.2MB). Free memory was 141.7MB in the beginning and 207.8MB in the end (delta: -66.0MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. [2023-12-19 15:54:37,360 INFO L158 Benchmark]: TraceAbstraction took 857572.60ms. Allocated memory was 262.1MB in the beginning and 1.1GB in the end (delta: 835.7MB). Free memory was 207.2MB in the beginning and 915.9MB in the end (delta: -708.6MB). Peak memory consumption was 127.1MB. Max. memory is 8.0GB. [2023-12-19 15:54:37,361 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 215.0MB. Free memory was 168.9MB in the beginning and 168.8MB in the end (delta: 147.0kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 302.85ms. Allocated memory is still 215.0MB. Free memory was 166.6MB in the beginning and 151.5MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 60.64ms. Allocated memory is still 215.0MB. Free memory was 151.5MB in the beginning and 147.0MB in the end (delta: 4.6MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 69.92ms. Allocated memory is still 215.0MB. Free memory was 147.0MB in the beginning and 141.7MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 675.06ms. Allocated memory was 215.0MB in the beginning and 262.1MB in the end (delta: 47.2MB). Free memory was 141.7MB in the beginning and 207.8MB in the end (delta: -66.0MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. * TraceAbstraction took 857572.60ms. Allocated memory was 262.1MB in the beginning and 1.1GB in the end (delta: 835.7MB). Free memory was 207.2MB in the beginning and 915.9MB in the end (delta: -708.6MB). Peak memory consumption was 127.1MB. 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 ∨-54-10-5-13-4-13-6-13-6-13-6-12-6-12-6-12-6-12-6-12-6-12-6-12-6-12-6-9-5-9-5-9-5-9-5-9-5-9-5-9-3-9-2-9-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-75-11-5-13-4-13-6-13-6-13-6-12-6-12-6-12-6-12-6-12-6-12-6-12-6-12-6-9-5-9-5-9-5-9-5-9-5-9-5-9-3-9-2-9-1 context. RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown