/usr/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 -tc ../../../trunk/examples/toolchains/AutomizerC.xml -i ../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.5.4.ufo.BOUNDED-10.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 05:29:21,151 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 05:29:21,153 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 05:29:21,191 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 05:29:21,191 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 05:29:21,194 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 05:29:21,198 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 05:29:21,201 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 05:29:21,202 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 05:29:21,206 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 05:29:21,208 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 05:29:21,209 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 05:29:21,209 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 05:29:21,211 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 05:29:21,212 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 05:29:21,213 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 05:29:21,214 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 05:29:21,214 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 05:29:21,216 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 05:29:21,221 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 05:29:21,222 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 05:29:21,223 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 05:29:21,223 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 05:29:21,224 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 05:29:21,232 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 05:29:21,232 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 05:29:21,232 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 05:29:21,234 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 05:29:21,234 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 05:29:21,235 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 05:29:21,235 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 05:29:21,235 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 05:29:21,237 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 05:29:21,237 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 05:29:21,238 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 05:29:21,238 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 05:29:21,238 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 05:29:21,238 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 05:29:21,239 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 05:29:21,239 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 05:29:21,240 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 05:29:21,241 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-04-02 05:29:21,268 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 05:29:21,268 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 05:29:21,269 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 05:29:21,269 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 05:29:21,270 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 05:29:21,270 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 05:29:21,271 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 05:29:21,271 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 05:29:21,271 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 05:29:21,271 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 05:29:21,272 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 05:29:21,272 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 05:29:21,272 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 05:29:21,272 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 05:29:21,273 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 05:29:21,273 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 05:29:21,273 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 05:29:21,273 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 05:29:21,273 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 05:29:21,273 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 05:29:21,273 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 05:29:21,274 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 05:29:21,274 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 05:29:21,274 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 05:29:21,274 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 05:29:21,274 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 05:29:21,274 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 05:29:21,275 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 05:29:21,275 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 05:29:21,275 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 05:29:21,275 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 05:29:21,275 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 05:29:21,276 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 05:29:21,276 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 05:29:21,276 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 05:29:21,276 INFO L138 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 05:29:21,514 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 05:29:21,539 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 05:29:21,541 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 05:29:21,542 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 05:29:21,542 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 05:29:21,543 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.5.4.ufo.BOUNDED-10.pals.c [2023-04-02 05:29:22,757 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 05:29:23,046 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 05:29:23,047 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.5.4.ufo.BOUNDED-10.pals.c [2023-04-02 05:29:23,062 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69262bcab/b01d196976924326b29b527fe280beaf/FLAGe537fe202 [2023-04-02 05:29:23,074 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69262bcab/b01d196976924326b29b527fe280beaf [2023-04-02 05:29:23,076 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 05:29:23,077 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 05:29:23,078 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 05:29:23,079 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 05:29:23,081 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 05:29:23,082 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 05:29:23" (1/1) ... [2023-04-02 05:29:23,083 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44a31384 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:29:23, skipping insertion in model container [2023-04-02 05:29:23,083 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 05:29:23" (1/1) ... [2023-04-02 05:29:23,089 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 05:29:23,147 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 05:29:23,523 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.5.4.ufo.BOUNDED-10.pals.c[65471,65484] [2023-04-02 05:29:23,527 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 05:29:23,540 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 05:29:23,670 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.5.4.ufo.BOUNDED-10.pals.c[65471,65484] [2023-04-02 05:29:23,671 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 05:29:23,689 INFO L208 MainTranslator]: Completed translation [2023-04-02 05:29:23,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:29:23 WrapperNode [2023-04-02 05:29:23,689 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 05:29:23,690 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 05:29:23,690 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 05:29:23,690 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 05:29:23,701 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:29:23" (1/1) ... [2023-04-02 05:29:23,702 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:29:23" (1/1) ... [2023-04-02 05:29:23,731 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:29:23" (1/1) ... [2023-04-02 05:29:23,736 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:29:23" (1/1) ... [2023-04-02 05:29:23,783 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:29:23" (1/1) ... [2023-04-02 05:29:23,800 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:29:23" (1/1) ... [2023-04-02 05:29:23,806 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:29:23" (1/1) ... [2023-04-02 05:29:23,813 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:29:23" (1/1) ... [2023-04-02 05:29:23,823 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 05:29:23,824 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 05:29:23,824 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 05:29:23,824 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 05:29:23,825 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:29:23" (1/1) ... [2023-04-02 05:29:23,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 05:29:23,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:29:23,860 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-02 05:29:23,881 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-02 05:29:23,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 05:29:23,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 05:29:23,908 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 05:29:23,909 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-02 05:29:23,909 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2023-04-02 05:29:23,909 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2023-04-02 05:29:23,909 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2023-04-02 05:29:23,909 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2023-04-02 05:29:23,909 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2023-04-02 05:29:23,909 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2023-04-02 05:29:23,909 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2023-04-02 05:29:23,910 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 05:29:23,910 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-04-02 05:29:23,910 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 05:29:23,910 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 05:29:23,910 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 05:29:23,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 05:29:23,910 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-04-02 05:29:23,910 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-02 05:29:23,910 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-04-02 05:29:23,911 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-02 05:29:23,911 INFO L130 BoogieDeclarations]: Found specification of procedure read [2023-04-02 05:29:23,911 INFO L130 BoogieDeclarations]: Found specification of procedure write [2023-04-02 05:29:23,911 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2023-04-02 05:29:23,911 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2023-04-02 05:29:23,911 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2023-04-02 05:29:23,911 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2023-04-02 05:29:23,911 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2023-04-02 05:29:23,911 INFO L130 BoogieDeclarations]: Found specification of procedure init [2023-04-02 05:29:23,912 INFO L130 BoogieDeclarations]: Found specification of procedure check [2023-04-02 05:29:23,912 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 05:29:23,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 05:29:23,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 05:29:23,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 05:29:23,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 05:29:23,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 05:29:23,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 05:29:24,104 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 05:29:24,106 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 05:29:25,666 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 05:29:25,686 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 05:29:25,686 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-02 05:29:25,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 05:29:25 BoogieIcfgContainer [2023-04-02 05:29:25,690 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 05:29:25,693 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 05:29:25,693 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 05:29:25,696 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 05:29:25,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 05:29:23" (1/3) ... [2023-04-02 05:29:25,697 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14b99c0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 05:29:25, skipping insertion in model container [2023-04-02 05:29:25,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:29:23" (2/3) ... [2023-04-02 05:29:25,697 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14b99c0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 05:29:25, skipping insertion in model container [2023-04-02 05:29:25,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 05:29:25" (3/3) ... [2023-04-02 05:29:25,700 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.5.4.ufo.BOUNDED-10.pals.c [2023-04-02 05:29:25,714 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 05:29:25,715 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 05:29:25,780 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 05:29:25,786 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=LoopsAndPotentialCycles, 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;@1700d347, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 05:29:25,786 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 05:29:25,794 INFO L276 IsEmpty]: Start isEmpty. Operand has 733 states, 709 states have (on average 1.851904090267983) internal successors, (1313), 710 states have internal predecessors, (1313), 11 states have call successors, (11), 11 states have call predecessors, (11), 11 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-04-02 05:29:25,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-04-02 05:29:25,815 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:29:25,816 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:29:25,816 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:29:25,821 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:29:25,821 INFO L85 PathProgramCache]: Analyzing trace with hash -625154658, now seen corresponding path program 1 times [2023-04-02 05:29:25,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:29:25,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621659947] [2023-04-02 05:29:25,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:29:25,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:29:26,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:27,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:29:27,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:27,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:29:27,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:27,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-04-02 05:29:27,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:27,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-04-02 05:29:27,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:27,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-04-02 05:29:27,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:27,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-04-02 05:29:27,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:27,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-04-02 05:29:27,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:27,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-04-02 05:29:27,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:27,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-04-02 05:29:27,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:27,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:29:27,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:29:27,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621659947] [2023-04-02 05:29:27,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621659947] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:29:27,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:29:27,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 05:29:27,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153695853] [2023-04-02 05:29:27,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:29:27,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 05:29:27,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:29:27,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 05:29:27,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-04-02 05:29:27,620 INFO L87 Difference]: Start difference. First operand has 733 states, 709 states have (on average 1.851904090267983) internal successors, (1313), 710 states have internal predecessors, (1313), 11 states have call successors, (11), 11 states have call predecessors, (11), 11 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 8 states, 8 states have (on average 20.875) internal successors, (167), 2 states have internal predecessors, (167), 2 states have call successors, (11), 8 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:29:33,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:29:33,452 INFO L93 Difference]: Finished difference Result 941 states and 1690 transitions. [2023-04-02 05:29:33,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-02 05:29:33,454 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.875) internal successors, (167), 2 states have internal predecessors, (167), 2 states have call successors, (11), 8 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 187 [2023-04-02 05:29:33,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:29:33,481 INFO L225 Difference]: With dead ends: 941 [2023-04-02 05:29:33,482 INFO L226 Difference]: Without dead ends: 763 [2023-04-02 05:29:33,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2023-04-02 05:29:33,491 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 5448 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 1629 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5448 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 1669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-04-02 05:29:33,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5448 Valid, 89 Invalid, 1669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1629 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2023-04-02 05:29:33,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 763 states. [2023-04-02 05:29:33,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 763 to 728. [2023-04-02 05:29:33,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 728 states, 706 states have (on average 1.8498583569405098) internal successors, (1306), 706 states have internal predecessors, (1306), 11 states have call successors, (11), 11 states have call predecessors, (11), 10 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-04-02 05:29:33,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 728 states to 728 states and 1327 transitions. [2023-04-02 05:29:33,844 INFO L78 Accepts]: Start accepts. Automaton has 728 states and 1327 transitions. Word has length 187 [2023-04-02 05:29:33,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:29:33,848 INFO L495 AbstractCegarLoop]: Abstraction has 728 states and 1327 transitions. [2023-04-02 05:29:33,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.875) internal successors, (167), 2 states have internal predecessors, (167), 2 states have call successors, (11), 8 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:29:33,848 INFO L276 IsEmpty]: Start isEmpty. Operand 728 states and 1327 transitions. [2023-04-02 05:29:33,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-04-02 05:29:33,858 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:29:33,859 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:29:33,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 05:29:33,859 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:29:33,860 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:29:33,860 INFO L85 PathProgramCache]: Analyzing trace with hash 913185372, now seen corresponding path program 1 times [2023-04-02 05:29:33,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:29:33,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139612802] [2023-04-02 05:29:33,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:29:33,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:29:33,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:35,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:29:35,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:35,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:29:35,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:35,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-04-02 05:29:35,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:35,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-04-02 05:29:35,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:35,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-04-02 05:29:35,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:35,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-04-02 05:29:35,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:35,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-04-02 05:29:35,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:35,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-04-02 05:29:35,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:35,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-04-02 05:29:35,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:35,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:29:35,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:29:35,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139612802] [2023-04-02 05:29:35,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139612802] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:29:35,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:29:35,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-04-02 05:29:35,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449751920] [2023-04-02 05:29:35,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:29:35,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-02 05:29:35,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:29:35,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-02 05:29:35,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2023-04-02 05:29:35,533 INFO L87 Difference]: Start difference. First operand 728 states and 1327 transitions. Second operand has 14 states, 13 states have (on average 12.846153846153847) internal successors, (167), 7 states have internal predecessors, (167), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 05:29:44,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:29:44,957 INFO L93 Difference]: Finished difference Result 945 states and 1696 transitions. [2023-04-02 05:29:44,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-04-02 05:29:44,958 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 12.846153846153847) internal successors, (167), 7 states have internal predecessors, (167), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 187 [2023-04-02 05:29:44,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:29:44,963 INFO L225 Difference]: With dead ends: 945 [2023-04-02 05:29:44,963 INFO L226 Difference]: Without dead ends: 774 [2023-04-02 05:29:44,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=125, Invalid=381, Unknown=0, NotChecked=0, Total=506 [2023-04-02 05:29:44,966 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 7771 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 9368 mSolverCounterSat, 173 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7778 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 9541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 173 IncrementalHoareTripleChecker+Valid, 9368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2023-04-02 05:29:44,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7778 Valid, 135 Invalid, 9541 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [173 Valid, 9368 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2023-04-02 05:29:44,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 774 states. [2023-04-02 05:29:45,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 774 to 728. [2023-04-02 05:29:45,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 728 states, 706 states have (on average 1.7577903682719547) internal successors, (1241), 706 states have internal predecessors, (1241), 11 states have call successors, (11), 11 states have call predecessors, (11), 10 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-04-02 05:29:45,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 728 states to 728 states and 1262 transitions. [2023-04-02 05:29:45,178 INFO L78 Accepts]: Start accepts. Automaton has 728 states and 1262 transitions. Word has length 187 [2023-04-02 05:29:45,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:29:45,178 INFO L495 AbstractCegarLoop]: Abstraction has 728 states and 1262 transitions. [2023-04-02 05:29:45,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 12.846153846153847) internal successors, (167), 7 states have internal predecessors, (167), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 05:29:45,179 INFO L276 IsEmpty]: Start isEmpty. Operand 728 states and 1262 transitions. [2023-04-02 05:29:45,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2023-04-02 05:29:45,182 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:29:45,182 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:29:45,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 05:29:45,183 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:29:45,183 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:29:45,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1978499002, now seen corresponding path program 1 times [2023-04-02 05:29:45,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:29:45,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849548674] [2023-04-02 05:29:45,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:29:45,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:29:45,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:46,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:29:46,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:46,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:29:46,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:46,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-04-02 05:29:46,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:46,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-04-02 05:29:46,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:46,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2023-04-02 05:29:46,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:46,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-04-02 05:29:46,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:46,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-04-02 05:29:46,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:46,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2023-04-02 05:29:46,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:46,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2023-04-02 05:29:46,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:46,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:29:46,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:29:46,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849548674] [2023-04-02 05:29:46,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849548674] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:29:46,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:29:46,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 05:29:46,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844438626] [2023-04-02 05:29:46,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:29:46,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 05:29:46,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:29:46,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 05:29:46,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-04-02 05:29:46,436 INFO L87 Difference]: Start difference. First operand 728 states and 1262 transitions. Second operand has 11 states, 11 states have (on average 21.0) internal successors, (231), 5 states have internal predecessors, (231), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 05:29:54,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:29:54,174 INFO L93 Difference]: Finished difference Result 1126 states and 1943 transitions. [2023-04-02 05:29:54,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-04-02 05:29:54,174 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 21.0) internal successors, (231), 5 states have internal predecessors, (231), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 251 [2023-04-02 05:29:54,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:29:54,180 INFO L225 Difference]: With dead ends: 1126 [2023-04-02 05:29:54,180 INFO L226 Difference]: Without dead ends: 961 [2023-04-02 05:29:54,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2023-04-02 05:29:54,183 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 10707 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 3953 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10713 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 4081 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 3953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-04-02 05:29:54,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10713 Valid, 76 Invalid, 4081 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 3953 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2023-04-02 05:29:54,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 961 states. [2023-04-02 05:29:54,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 961 to 879. [2023-04-02 05:29:54,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 879 states, 842 states have (on average 1.7517814726840855) internal successors, (1475), 843 states have internal predecessors, (1475), 18 states have call successors, (18), 18 states have call predecessors, (18), 18 states have return successors, (19), 17 states have call predecessors, (19), 17 states have call successors, (19) [2023-04-02 05:29:54,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 879 states to 879 states and 1512 transitions. [2023-04-02 05:29:54,448 INFO L78 Accepts]: Start accepts. Automaton has 879 states and 1512 transitions. Word has length 251 [2023-04-02 05:29:54,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:29:54,450 INFO L495 AbstractCegarLoop]: Abstraction has 879 states and 1512 transitions. [2023-04-02 05:29:54,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 21.0) internal successors, (231), 5 states have internal predecessors, (231), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 05:29:54,450 INFO L276 IsEmpty]: Start isEmpty. Operand 879 states and 1512 transitions. [2023-04-02 05:29:54,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2023-04-02 05:29:54,455 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:29:54,455 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:29:54,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 05:29:54,455 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:29:54,456 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:29:54,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1101058732, now seen corresponding path program 1 times [2023-04-02 05:29:54,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:29:54,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507244380] [2023-04-02 05:29:54,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:29:54,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:29:54,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:55,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:29:55,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:55,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:29:55,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:55,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-04-02 05:29:55,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:55,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-04-02 05:29:55,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:55,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-04-02 05:29:55,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:55,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2023-04-02 05:29:55,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:55,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-04-02 05:29:55,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:55,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-04-02 05:29:55,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:55,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2023-04-02 05:29:55,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:55,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:29:55,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:29:55,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507244380] [2023-04-02 05:29:55,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507244380] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:29:55,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:29:55,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 05:29:55,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084556339] [2023-04-02 05:29:55,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:29:55,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 05:29:55,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:29:55,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 05:29:55,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-04-02 05:29:55,669 INFO L87 Difference]: Start difference. First operand 879 states and 1512 transitions. Second operand has 11 states, 11 states have (on average 21.363636363636363) internal successors, (235), 5 states have internal predecessors, (235), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 05:30:03,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:30:03,440 INFO L93 Difference]: Finished difference Result 1637 states and 2800 transitions. [2023-04-02 05:30:03,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-04-02 05:30:03,442 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 21.363636363636363) internal successors, (235), 5 states have internal predecessors, (235), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 255 [2023-04-02 05:30:03,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:30:03,448 INFO L225 Difference]: With dead ends: 1637 [2023-04-02 05:30:03,448 INFO L226 Difference]: Without dead ends: 1321 [2023-04-02 05:30:03,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2023-04-02 05:30:03,451 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 6763 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 4060 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6768 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 4130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 4060 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-04-02 05:30:03,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6768 Valid, 80 Invalid, 4130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 4060 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2023-04-02 05:30:03,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1321 states. [2023-04-02 05:30:03,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1321 to 1173. [2023-04-02 05:30:03,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1173 states, 1105 states have (on average 1.7457013574660634) internal successors, (1929), 1109 states have internal predecessors, (1929), 32 states have call successors, (32), 32 states have call predecessors, (32), 35 states have return successors, (39), 31 states have call predecessors, (39), 31 states have call successors, (39) [2023-04-02 05:30:03,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1173 states to 1173 states and 2000 transitions. [2023-04-02 05:30:03,739 INFO L78 Accepts]: Start accepts. Automaton has 1173 states and 2000 transitions. Word has length 255 [2023-04-02 05:30:03,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:30:03,740 INFO L495 AbstractCegarLoop]: Abstraction has 1173 states and 2000 transitions. [2023-04-02 05:30:03,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 21.363636363636363) internal successors, (235), 5 states have internal predecessors, (235), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 05:30:03,740 INFO L276 IsEmpty]: Start isEmpty. Operand 1173 states and 2000 transitions. [2023-04-02 05:30:03,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2023-04-02 05:30:03,744 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:30:03,745 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:30:03,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 05:30:03,745 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:30:03,745 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:30:03,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1818698298, now seen corresponding path program 1 times [2023-04-02 05:30:03,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:30:03,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792171260] [2023-04-02 05:30:03,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:30:03,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:30:03,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:04,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:30:04,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:04,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:30:04,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:04,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-04-02 05:30:04,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:04,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-04-02 05:30:04,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:04,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-04-02 05:30:04,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:04,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-04-02 05:30:04,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:04,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2023-04-02 05:30:04,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:04,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2023-04-02 05:30:04,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:04,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-04-02 05:30:04,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:04,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:30:04,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:30:04,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792171260] [2023-04-02 05:30:04,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792171260] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:30:04,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:30:04,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 05:30:04,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951447025] [2023-04-02 05:30:04,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:30:04,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 05:30:04,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:30:04,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 05:30:04,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-04-02 05:30:04,870 INFO L87 Difference]: Start difference. First operand 1173 states and 2000 transitions. Second operand has 11 states, 11 states have (on average 21.727272727272727) internal successors, (239), 5 states have internal predecessors, (239), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 05:30:12,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:30:12,655 INFO L93 Difference]: Finished difference Result 2645 states and 4494 transitions. [2023-04-02 05:30:12,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-04-02 05:30:12,656 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 21.727272727272727) internal successors, (239), 5 states have internal predecessors, (239), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 259 [2023-04-02 05:30:12,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:30:12,664 INFO L225 Difference]: With dead ends: 2645 [2023-04-02 05:30:12,664 INFO L226 Difference]: Without dead ends: 2035 [2023-04-02 05:30:12,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2023-04-02 05:30:12,667 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 3157 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 4196 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3161 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 4216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 4196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-04-02 05:30:12,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3161 Valid, 81 Invalid, 4216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 4196 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2023-04-02 05:30:12,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2035 states. [2023-04-02 05:30:12,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2035 to 1741. [2023-04-02 05:30:13,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1741 states, 1609 states have (on average 1.73586078309509) internal successors, (2793), 1621 states have internal predecessors, (2793), 60 states have call successors, (60), 60 states have call predecessors, (60), 71 states have return successors, (83), 59 states have call predecessors, (83), 59 states have call successors, (83) [2023-04-02 05:30:13,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1741 states to 1741 states and 2936 transitions. [2023-04-02 05:30:13,006 INFO L78 Accepts]: Start accepts. Automaton has 1741 states and 2936 transitions. Word has length 259 [2023-04-02 05:30:13,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:30:13,006 INFO L495 AbstractCegarLoop]: Abstraction has 1741 states and 2936 transitions. [2023-04-02 05:30:13,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 21.727272727272727) internal successors, (239), 5 states have internal predecessors, (239), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 05:30:13,006 INFO L276 IsEmpty]: Start isEmpty. Operand 1741 states and 2936 transitions. [2023-04-02 05:30:13,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2023-04-02 05:30:13,011 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:30:13,011 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:30:13,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 05:30:13,011 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:30:13,012 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:30:13,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1205231444, now seen corresponding path program 1 times [2023-04-02 05:30:13,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:30:13,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589642465] [2023-04-02 05:30:13,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:30:13,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:30:13,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:13,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:30:13,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:13,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:30:13,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:13,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-04-02 05:30:13,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:13,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-04-02 05:30:13,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:13,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-04-02 05:30:13,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:13,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-04-02 05:30:13,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:13,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-04-02 05:30:13,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:14,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2023-04-02 05:30:14,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:14,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2023-04-02 05:30:14,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:14,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:30:14,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:30:14,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589642465] [2023-04-02 05:30:14,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589642465] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:30:14,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:30:14,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 05:30:14,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534863935] [2023-04-02 05:30:14,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:30:14,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 05:30:14,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:30:14,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 05:30:14,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-04-02 05:30:14,053 INFO L87 Difference]: Start difference. First operand 1741 states and 2936 transitions. Second operand has 11 states, 11 states have (on average 22.09090909090909) internal successors, (243), 5 states have internal predecessors, (243), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 05:30:21,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:30:21,520 INFO L93 Difference]: Finished difference Result 4601 states and 7762 transitions. [2023-04-02 05:30:21,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-04-02 05:30:21,538 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 22.09090909090909) internal successors, (243), 5 states have internal predecessors, (243), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 263 [2023-04-02 05:30:21,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:30:21,553 INFO L225 Difference]: With dead ends: 4601 [2023-04-02 05:30:21,553 INFO L226 Difference]: Without dead ends: 3423 [2023-04-02 05:30:21,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2023-04-02 05:30:21,566 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 8297 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 4003 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8300 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 4087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 4003 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-04-02 05:30:21,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8300 Valid, 75 Invalid, 4087 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 4003 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-04-02 05:30:21,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3423 states. [2023-04-02 05:30:22,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3423 to 2837. [2023-04-02 05:30:22,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2837 states, 2573 states have (on average 1.7228915662650603) internal successors, (4433), 2605 states have internal predecessors, (4433), 116 states have call successors, (116), 116 states have call predecessors, (116), 147 states have return successors, (179), 115 states have call predecessors, (179), 115 states have call successors, (179) [2023-04-02 05:30:22,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2837 states to 2837 states and 4728 transitions. [2023-04-02 05:30:22,082 INFO L78 Accepts]: Start accepts. Automaton has 2837 states and 4728 transitions. Word has length 263 [2023-04-02 05:30:22,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:30:22,083 INFO L495 AbstractCegarLoop]: Abstraction has 2837 states and 4728 transitions. [2023-04-02 05:30:22,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 22.09090909090909) internal successors, (243), 5 states have internal predecessors, (243), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 05:30:22,083 INFO L276 IsEmpty]: Start isEmpty. Operand 2837 states and 4728 transitions. [2023-04-02 05:30:22,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2023-04-02 05:30:22,087 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:30:22,088 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:30:22,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-02 05:30:22,088 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:30:22,088 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:30:22,089 INFO L85 PathProgramCache]: Analyzing trace with hash 257225914, now seen corresponding path program 1 times [2023-04-02 05:30:22,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:30:22,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999407565] [2023-04-02 05:30:22,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:30:22,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:30:22,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:22,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:30:22,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:22,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:30:22,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:22,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-04-02 05:30:22,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:22,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-04-02 05:30:22,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:23,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-04-02 05:30:23,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:23,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-04-02 05:30:23,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:23,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-04-02 05:30:23,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:23,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-04-02 05:30:23,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:23,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-04-02 05:30:23,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:23,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:30:23,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:30:23,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999407565] [2023-04-02 05:30:23,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999407565] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:30:23,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:30:23,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 05:30:23,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242733786] [2023-04-02 05:30:23,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:30:23,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 05:30:23,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:30:23,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 05:30:23,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-04-02 05:30:23,183 INFO L87 Difference]: Start difference. First operand 2837 states and 4728 transitions. Second operand has 11 states, 11 states have (on average 22.454545454545453) internal successors, (247), 5 states have internal predecessors, (247), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 05:30:30,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:30:30,860 INFO L93 Difference]: Finished difference Result 8393 states and 14058 transitions. [2023-04-02 05:30:30,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-04-02 05:30:30,864 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 22.454545454545453) internal successors, (247), 5 states have internal predecessors, (247), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 267 [2023-04-02 05:30:30,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:30:30,885 INFO L225 Difference]: With dead ends: 8393 [2023-04-02 05:30:30,885 INFO L226 Difference]: Without dead ends: 6119 [2023-04-02 05:30:30,890 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2023-04-02 05:30:30,891 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 7095 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 4042 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7097 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 4110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 4042 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-04-02 05:30:30,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7097 Valid, 75 Invalid, 4110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 4042 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-04-02 05:30:30,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6119 states. [2023-04-02 05:30:31,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6119 to 4949. [2023-04-02 05:30:31,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4949 states, 4413 states have (on average 1.7079084523000228) internal successors, (7537), 4493 states have internal predecessors, (7537), 228 states have call successors, (228), 228 states have call predecessors, (228), 307 states have return successors, (387), 227 states have call predecessors, (387), 227 states have call successors, (387) [2023-04-02 05:30:31,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4949 states to 4949 states and 8152 transitions. [2023-04-02 05:30:31,793 INFO L78 Accepts]: Start accepts. Automaton has 4949 states and 8152 transitions. Word has length 267 [2023-04-02 05:30:31,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:30:31,793 INFO L495 AbstractCegarLoop]: Abstraction has 4949 states and 8152 transitions. [2023-04-02 05:30:31,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 22.454545454545453) internal successors, (247), 5 states have internal predecessors, (247), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 05:30:31,794 INFO L276 IsEmpty]: Start isEmpty. Operand 4949 states and 8152 transitions. [2023-04-02 05:30:31,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2023-04-02 05:30:31,799 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:30:31,799 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:30:31,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-02 05:30:31,800 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:30:31,800 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:30:31,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1135620908, now seen corresponding path program 1 times [2023-04-02 05:30:31,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:30:31,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354667090] [2023-04-02 05:30:31,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:30:31,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:30:31,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:33,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:30:33,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:33,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:30:33,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:33,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-04-02 05:30:33,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:33,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-04-02 05:30:33,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:33,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-04-02 05:30:33,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:33,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-04-02 05:30:33,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:33,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-04-02 05:30:33,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:33,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-04-02 05:30:33,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:33,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-04-02 05:30:33,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:33,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:30:33,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:30:33,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354667090] [2023-04-02 05:30:33,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354667090] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:30:33,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:30:33,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-04-02 05:30:33,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655183747] [2023-04-02 05:30:33,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:30:33,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-04-02 05:30:33,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:30:33,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-04-02 05:30:33,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2023-04-02 05:30:33,498 INFO L87 Difference]: Start difference. First operand 4949 states and 8152 transitions. Second operand has 19 states, 19 states have (on average 13.210526315789474) internal successors, (251), 13 states have internal predecessors, (251), 3 states have call successors, (11), 8 states have call predecessors, (11), 8 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:31:14,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:31:14,570 INFO L93 Difference]: Finished difference Result 50048 states and 85061 transitions. [2023-04-02 05:31:14,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2023-04-02 05:31:14,571 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.210526315789474) internal successors, (251), 13 states have internal predecessors, (251), 3 states have call successors, (11), 8 states have call predecessors, (11), 8 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 271 [2023-04-02 05:31:14,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:31:14,805 INFO L225 Difference]: With dead ends: 50048 [2023-04-02 05:31:14,805 INFO L226 Difference]: Without dead ends: 45662 [2023-04-02 05:31:14,839 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6467 ImplicationChecksByTransitivity, 23.4s TimeCoverageRelationStatistics Valid=2884, Invalid=15206, Unknown=0, NotChecked=0, Total=18090 [2023-04-02 05:31:14,841 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 17416 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 17833 mSolverCounterSat, 355 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17429 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 18188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 355 IncrementalHoareTripleChecker+Valid, 17833 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2023-04-02 05:31:14,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17429 Valid, 406 Invalid, 18188 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [355 Valid, 17833 Invalid, 0 Unknown, 0 Unchecked, 14.1s Time] [2023-04-02 05:31:14,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45662 states. [2023-04-02 05:31:19,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45662 to 36226. [2023-04-02 05:31:19,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36226 states, 31931 states have (on average 1.6988819642353825) internal successors, (54247), 32634 states have internal predecessors, (54247), 1796 states have call successors, (1796), 1796 states have call predecessors, (1796), 2498 states have return successors, (4291), 1795 states have call predecessors, (4291), 1795 states have call successors, (4291) [2023-04-02 05:31:19,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36226 states to 36226 states and 60334 transitions. [2023-04-02 05:31:19,821 INFO L78 Accepts]: Start accepts. Automaton has 36226 states and 60334 transitions. Word has length 271 [2023-04-02 05:31:19,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:31:19,822 INFO L495 AbstractCegarLoop]: Abstraction has 36226 states and 60334 transitions. [2023-04-02 05:31:19,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.210526315789474) internal successors, (251), 13 states have internal predecessors, (251), 3 states have call successors, (11), 8 states have call predecessors, (11), 8 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:31:19,823 INFO L276 IsEmpty]: Start isEmpty. Operand 36226 states and 60334 transitions. [2023-04-02 05:31:19,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2023-04-02 05:31:19,839 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:31:19,839 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:31:19,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-02 05:31:19,840 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:31:19,840 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:31:19,840 INFO L85 PathProgramCache]: Analyzing trace with hash 829673408, now seen corresponding path program 1 times [2023-04-02 05:31:19,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:31:19,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445100099] [2023-04-02 05:31:19,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:31:19,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:31:19,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:31:20,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:31:20,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:31:20,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:31:20,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:31:20,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-04-02 05:31:20,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:31:20,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-04-02 05:31:20,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:31:21,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-04-02 05:31:21,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:31:21,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-04-02 05:31:21,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:31:21,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-04-02 05:31:21,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:31:21,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-04-02 05:31:21,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:31:21,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-04-02 05:31:21,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:31:21,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:31:21,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:31:21,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445100099] [2023-04-02 05:31:21,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445100099] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:31:21,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:31:21,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 05:31:21,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361768914] [2023-04-02 05:31:21,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:31:21,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 05:31:21,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:31:21,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 05:31:21,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-04-02 05:31:21,208 INFO L87 Difference]: Start difference. First operand 36226 states and 60334 transitions. Second operand has 12 states, 12 states have (on average 21.0) internal successors, (252), 6 states have internal predecessors, (252), 3 states have call successors, (11), 8 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:31:43,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:31:43,156 INFO L93 Difference]: Finished difference Result 126414 states and 214239 transitions. [2023-04-02 05:31:43,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-04-02 05:31:43,157 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 21.0) internal successors, (252), 6 states have internal predecessors, (252), 3 states have call successors, (11), 8 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 272 [2023-04-02 05:31:43,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:31:43,610 INFO L225 Difference]: With dead ends: 126414 [2023-04-02 05:31:43,611 INFO L226 Difference]: Without dead ends: 90751 [2023-04-02 05:31:43,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 538 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=435, Invalid=1635, Unknown=0, NotChecked=0, Total=2070 [2023-04-02 05:31:43,741 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 11778 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 7169 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11790 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 7322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 7169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2023-04-02 05:31:43,742 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11790 Valid, 173 Invalid, 7322 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [153 Valid, 7169 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2023-04-02 05:31:43,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90751 states. [2023-04-02 05:31:52,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90751 to 72255. [2023-04-02 05:31:52,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72255 states, 63625 states have (on average 1.6945068762278979) internal successors, (107813), 65079 states have internal predecessors, (107813), 3588 states have call successors, (3588), 3588 states have call predecessors, (3588), 5041 states have return successors, (8939), 3587 states have call predecessors, (8939), 3587 states have call successors, (8939) [2023-04-02 05:31:52,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72255 states to 72255 states and 120340 transitions. [2023-04-02 05:31:52,383 INFO L78 Accepts]: Start accepts. Automaton has 72255 states and 120340 transitions. Word has length 272 [2023-04-02 05:31:52,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:31:52,384 INFO L495 AbstractCegarLoop]: Abstraction has 72255 states and 120340 transitions. [2023-04-02 05:31:52,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 21.0) internal successors, (252), 6 states have internal predecessors, (252), 3 states have call successors, (11), 8 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:31:52,385 INFO L276 IsEmpty]: Start isEmpty. Operand 72255 states and 120340 transitions. [2023-04-02 05:31:52,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2023-04-02 05:31:52,408 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:31:52,408 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:31:52,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-02 05:31:52,408 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:31:52,410 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:31:52,410 INFO L85 PathProgramCache]: Analyzing trace with hash -1716584358, now seen corresponding path program 1 times [2023-04-02 05:31:52,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:31:52,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745775634] [2023-04-02 05:31:52,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:31:52,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:31:52,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:31:53,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:31:53,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:31:53,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:31:53,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:31:53,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-04-02 05:31:53,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:31:53,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-04-02 05:31:53,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:31:53,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2023-04-02 05:31:53,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:31:54,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2023-04-02 05:31:54,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:31:54,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-04-02 05:31:54,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:31:54,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2023-04-02 05:31:54,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:31:54,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2023-04-02 05:31:54,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:31:54,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:31:54,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:31:54,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745775634] [2023-04-02 05:31:54,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745775634] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:31:54,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:31:54,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-04-02 05:31:54,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407312819] [2023-04-02 05:31:54,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:31:54,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-04-02 05:31:54,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:31:54,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-04-02 05:31:54,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2023-04-02 05:31:54,252 INFO L87 Difference]: Start difference. First operand 72255 states and 120340 transitions. Second operand has 19 states, 19 states have (on average 13.31578947368421) internal successors, (253), 13 states have internal predecessors, (253), 4 states have call successors, (11), 8 states have call predecessors, (11), 8 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 05:32:56,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:32:56,820 INFO L93 Difference]: Finished difference Result 168818 states and 287095 transitions. [2023-04-02 05:32:56,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 170 states. [2023-04-02 05:32:56,821 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.31578947368421) internal successors, (253), 13 states have internal predecessors, (253), 4 states have call successors, (11), 8 states have call predecessors, (11), 8 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) Word has length 273 [2023-04-02 05:32:56,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:32:57,373 INFO L225 Difference]: With dead ends: 168818 [2023-04-02 05:32:57,373 INFO L226 Difference]: Without dead ends: 143333 [2023-04-02 05:32:57,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 180 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13111 ImplicationChecksByTransitivity, 32.2s TimeCoverageRelationStatistics Valid=4297, Invalid=28645, Unknown=0, NotChecked=0, Total=32942 [2023-04-02 05:32:57,470 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 15879 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 24254 mSolverCounterSat, 347 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15900 SdHoareTripleChecker+Valid, 630 SdHoareTripleChecker+Invalid, 24601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 347 IncrementalHoareTripleChecker+Valid, 24254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.2s IncrementalHoareTripleChecker+Time [2023-04-02 05:32:57,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15900 Valid, 630 Invalid, 24601 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [347 Valid, 24254 Invalid, 0 Unknown, 0 Unchecked, 19.2s Time] [2023-04-02 05:32:57,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143333 states.