/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_floodmax.3.1.ufo.BOUNDED-6.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 05:00:46,137 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 05:00:46,139 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 05:00:46,172 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 05:00:46,173 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 05:00:46,175 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 05:00:46,177 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 05:00:46,179 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 05:00:46,180 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 05:00:46,183 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 05:00:46,184 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 05:00:46,186 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 05:00:46,186 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 05:00:46,188 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 05:00:46,189 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 05:00:46,190 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 05:00:46,190 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 05:00:46,191 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 05:00:46,192 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 05:00:46,196 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 05:00:46,197 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 05:00:46,198 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 05:00:46,199 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 05:00:46,200 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 05:00:46,207 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 05:00:46,207 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 05:00:46,207 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 05:00:46,208 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 05:00:46,209 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 05:00:46,209 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 05:00:46,210 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 05:00:46,210 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 05:00:46,211 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 05:00:46,212 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 05:00:46,212 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 05:00:46,212 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 05:00:46,213 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 05:00:46,213 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 05:00:46,213 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 05:00:46,214 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 05:00:46,214 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 05:00:46,215 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 05:00:46,240 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 05:00:46,240 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 05:00:46,241 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 05:00:46,241 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 05:00:46,242 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 05:00:46,242 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 05:00:46,242 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 05:00:46,243 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 05:00:46,243 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 05:00:46,243 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 05:00:46,243 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 05:00:46,243 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 05:00:46,244 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 05:00:46,244 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 05:00:46,244 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 05:00:46,244 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 05:00:46,244 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 05:00:46,244 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 05:00:46,244 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 05:00:46,244 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 05:00:46,244 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 05:00:46,244 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 05:00:46,245 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 05:00:46,245 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 05:00:46,245 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 05:00:46,245 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 05:00:46,245 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 05:00:46,245 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 05:00:46,245 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 05:00:46,245 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 05:00:46,245 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 05:00:46,245 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 05:00:46,246 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 05:00:46,246 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 05:00:46,246 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 05:00:46,246 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 05:00:46,447 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 05:00:46,463 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 05:00:46,465 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 05:00:46,466 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 05:00:46,466 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 05:00:46,467 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.1.ufo.BOUNDED-6.pals.c [2023-04-02 05:00:47,510 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 05:00:47,745 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 05:00:47,745 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.1.ufo.BOUNDED-6.pals.c [2023-04-02 05:00:47,752 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d271e9d43/14aff3c8af3b45278d2d545fe55b7886/FLAG567e41937 [2023-04-02 05:00:47,762 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d271e9d43/14aff3c8af3b45278d2d545fe55b7886 [2023-04-02 05:00:47,764 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 05:00:47,765 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 05:00:47,765 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 05:00:47,765 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 05:00:47,770 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 05:00:47,771 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 05:00:47" (1/1) ... [2023-04-02 05:00:47,771 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f5f829f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:00:47, skipping insertion in model container [2023-04-02 05:00:47,772 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 05:00:47" (1/1) ... [2023-04-02 05:00:47,781 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 05:00:47,809 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 05:00:48,024 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_floodmax.3.1.ufo.BOUNDED-6.pals.c[11348,11361] [2023-04-02 05:00:48,027 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 05:00:48,038 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 05:00:48,079 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_floodmax.3.1.ufo.BOUNDED-6.pals.c[11348,11361] [2023-04-02 05:00:48,079 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 05:00:48,094 INFO L208 MainTranslator]: Completed translation [2023-04-02 05:00:48,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:00:48 WrapperNode [2023-04-02 05:00:48,094 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 05:00:48,109 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 05:00:48,109 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 05:00:48,109 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 05:00:48,123 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:00:48" (1/1) ... [2023-04-02 05:00:48,124 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:00:48" (1/1) ... [2023-04-02 05:00:48,132 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:00:48" (1/1) ... [2023-04-02 05:00:48,133 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:00:48" (1/1) ... [2023-04-02 05:00:48,150 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:00:48" (1/1) ... [2023-04-02 05:00:48,164 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:00:48" (1/1) ... [2023-04-02 05:00:48,174 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:00:48" (1/1) ... [2023-04-02 05:00:48,176 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:00:48" (1/1) ... [2023-04-02 05:00:48,179 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 05:00:48,180 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 05:00:48,180 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 05:00:48,180 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 05:00:48,181 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:00:48" (1/1) ... [2023-04-02 05:00:48,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 05:00:48,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:00:48,219 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 05:00:48,233 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 05:00:48,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 05:00:48,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 05:00:48,252 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 05:00:48,253 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2023-04-02 05:00:48,253 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2023-04-02 05:00:48,253 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2023-04-02 05:00:48,253 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2023-04-02 05:00:48,253 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2023-04-02 05:00:48,253 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 05:00:48,253 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-04-02 05:00:48,253 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 05:00:48,253 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 05:00:48,253 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 05:00:48,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 05:00:48,253 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-04-02 05:00:48,254 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-02 05:00:48,254 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-04-02 05:00:48,254 INFO L130 BoogieDeclarations]: Found specification of procedure read [2023-04-02 05:00:48,254 INFO L130 BoogieDeclarations]: Found specification of procedure write [2023-04-02 05:00:48,254 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2023-04-02 05:00:48,254 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2023-04-02 05:00:48,254 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2023-04-02 05:00:48,254 INFO L130 BoogieDeclarations]: Found specification of procedure init [2023-04-02 05:00:48,254 INFO L130 BoogieDeclarations]: Found specification of procedure check [2023-04-02 05:00:48,254 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 05:00:48,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 05:00:48,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 05:00:48,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 05:00:48,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 05:00:48,255 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 05:00:48,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 05:00:48,384 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 05:00:48,386 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 05:00:48,938 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 05:00:48,943 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 05:00:48,943 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-02 05:00:48,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 05:00:48 BoogieIcfgContainer [2023-04-02 05:00:48,945 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 05:00:48,946 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 05:00:48,946 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 05:00:48,954 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 05:00:48,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 05:00:47" (1/3) ... [2023-04-02 05:00:48,954 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33e443dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 05:00:48, skipping insertion in model container [2023-04-02 05:00:48,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:00:48" (2/3) ... [2023-04-02 05:00:48,956 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33e443dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 05:00:48, skipping insertion in model container [2023-04-02 05:00:48,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 05:00:48" (3/3) ... [2023-04-02 05:00:48,957 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_floodmax.3.1.ufo.BOUNDED-6.pals.c [2023-04-02 05:00:48,982 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 05:00:48,982 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 05:00:49,016 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 05:00:49,020 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;@297e7647, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 05:00:49,020 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 05:00:49,024 INFO L276 IsEmpty]: Start isEmpty. Operand has 137 states, 119 states have (on average 1.7226890756302522) internal successors, (205), 120 states have internal predecessors, (205), 8 states have call successors, (8), 8 states have call predecessors, (8), 8 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-04-02 05:00:49,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-04-02 05:00:49,031 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:00:49,032 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] [2023-04-02 05:00:49,032 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:00:49,036 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:00:49,036 INFO L85 PathProgramCache]: Analyzing trace with hash -556734187, now seen corresponding path program 1 times [2023-04-02 05:00:49,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:00:49,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898690802] [2023-04-02 05:00:49,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:49,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:00:49,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:49,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:00:49,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:49,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:00:49,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:49,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 05:00:49,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:49,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:00:49,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:49,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 05:00:49,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:49,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 05:00:49,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:49,645 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 05:00:49,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:00:49,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898690802] [2023-04-02 05:00:49,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898690802] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:00:49,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:00:49,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-02 05:00:49,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515933398] [2023-04-02 05:00:49,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:00:49,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 05:00:49,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:00:49,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 05:00:49,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-04-02 05:00:49,681 INFO L87 Difference]: Start difference. First operand has 137 states, 119 states have (on average 1.7226890756302522) internal successors, (205), 120 states have internal predecessors, (205), 8 states have call successors, (8), 8 states have call predecessors, (8), 8 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (8), 6 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-04-02 05:00:50,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:00:50,362 INFO L93 Difference]: Finished difference Result 222 states and 354 transitions. [2023-04-02 05:00:50,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 05:00:50,363 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (8), 6 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 58 [2023-04-02 05:00:50,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:00:50,372 INFO L225 Difference]: With dead ends: 222 [2023-04-02 05:00:50,372 INFO L226 Difference]: Without dead ends: 138 [2023-04-02 05:00:50,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-04-02 05:00:50,380 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 254 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-02 05:00:50,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 69 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-02 05:00:50,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2023-04-02 05:00:50,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 132. [2023-04-02 05:00:50,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 116 states have (on average 1.706896551724138) internal successors, (198), 116 states have internal predecessors, (198), 8 states have call successors, (8), 8 states have call predecessors, (8), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-04-02 05:00:50,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 213 transitions. [2023-04-02 05:00:50,461 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 213 transitions. Word has length 58 [2023-04-02 05:00:50,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:00:50,461 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 213 transitions. [2023-04-02 05:00:50,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (8), 6 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-04-02 05:00:50,462 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 213 transitions. [2023-04-02 05:00:50,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-04-02 05:00:50,463 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:00:50,463 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] [2023-04-02 05:00:50,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 05:00:50,464 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:00:50,464 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:00:50,464 INFO L85 PathProgramCache]: Analyzing trace with hash -629120745, now seen corresponding path program 1 times [2023-04-02 05:00:50,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:00:50,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872377716] [2023-04-02 05:00:50,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:50,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:00:50,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:50,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:00:50,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:50,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:00:50,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:50,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 05:00:50,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:50,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:00:50,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:50,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 05:00:50,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:50,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 05:00:50,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:50,807 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 05:00:50,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:00:50,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872377716] [2023-04-02 05:00:50,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872377716] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:00:50,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:00:50,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-04-02 05:00:50,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673914823] [2023-04-02 05:00:50,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:00:50,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 05:00:50,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:00:50,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 05:00:50,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-04-02 05:00:50,810 INFO L87 Difference]: Start difference. First operand 132 states and 213 transitions. Second operand has 10 states, 10 states have (on average 4.4) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-04-02 05:00:51,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:00:51,782 INFO L93 Difference]: Finished difference Result 226 states and 357 transitions. [2023-04-02 05:00:51,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-02 05:00:51,783 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.4) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 58 [2023-04-02 05:00:51,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:00:51,785 INFO L225 Difference]: With dead ends: 226 [2023-04-02 05:00:51,785 INFO L226 Difference]: Without dead ends: 147 [2023-04-02 05:00:51,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2023-04-02 05:00:51,787 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 529 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 1113 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 1170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-02 05:00:51,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [534 Valid, 91 Invalid, 1170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1113 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-02 05:00:51,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2023-04-02 05:00:51,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 132. [2023-04-02 05:00:51,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 116 states have (on average 1.5258620689655173) internal successors, (177), 116 states have internal predecessors, (177), 8 states have call successors, (8), 8 states have call predecessors, (8), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-04-02 05:00:51,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 192 transitions. [2023-04-02 05:00:51,829 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 192 transitions. Word has length 58 [2023-04-02 05:00:51,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:00:51,829 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 192 transitions. [2023-04-02 05:00:51,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.4) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-04-02 05:00:51,829 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 192 transitions. [2023-04-02 05:00:51,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-04-02 05:00:51,830 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:00:51,830 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] [2023-04-02 05:00:51,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 05:00:51,831 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:00:51,831 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:00:51,831 INFO L85 PathProgramCache]: Analyzing trace with hash -332222349, now seen corresponding path program 1 times [2023-04-02 05:00:51,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:00:51,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409512209] [2023-04-02 05:00:51,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:51,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:00:51,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:52,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:00:52,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:52,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:00:52,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:52,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-04-02 05:00:52,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:52,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-04-02 05:00:52,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:52,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-04-02 05:00:52,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:52,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-04-02 05:00:52,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:52,149 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 05:00:52,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:00:52,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409512209] [2023-04-02 05:00:52,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409512209] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:00:52,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:00:52,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 05:00:52,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471191028] [2023-04-02 05:00:52,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:00:52,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 05:00:52,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:00:52,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 05:00:52,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-04-02 05:00:52,151 INFO L87 Difference]: Start difference. First operand 132 states and 192 transitions. Second operand has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (8), 6 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-04-02 05:00:53,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:00:53,274 INFO L93 Difference]: Finished difference Result 292 states and 441 transitions. [2023-04-02 05:00:53,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-04-02 05:00:53,275 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (8), 6 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 78 [2023-04-02 05:00:53,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:00:53,278 INFO L225 Difference]: With dead ends: 292 [2023-04-02 05:00:53,278 INFO L226 Difference]: Without dead ends: 219 [2023-04-02 05:00:53,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=102, Invalid=240, Unknown=0, NotChecked=0, Total=342 [2023-04-02 05:00:53,280 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 701 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 683 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 705 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-02 05:00:53,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [705 Valid, 64 Invalid, 720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 683 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-02 05:00:53,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2023-04-02 05:00:53,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 199. [2023-04-02 05:00:53,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 172 states have (on average 1.5290697674418605) internal successors, (263), 173 states have internal predecessors, (263), 13 states have call successors, (13), 13 states have call predecessors, (13), 13 states have return successors, (14), 12 states have call predecessors, (14), 12 states have call successors, (14) [2023-04-02 05:00:53,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 290 transitions. [2023-04-02 05:00:53,305 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 290 transitions. Word has length 78 [2023-04-02 05:00:53,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:00:53,305 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 290 transitions. [2023-04-02 05:00:53,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (8), 6 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-04-02 05:00:53,306 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 290 transitions. [2023-04-02 05:00:53,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-04-02 05:00:53,307 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:00:53,308 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] [2023-04-02 05:00:53,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 05:00:53,308 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:00:53,308 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:00:53,308 INFO L85 PathProgramCache]: Analyzing trace with hash -519851975, now seen corresponding path program 1 times [2023-04-02 05:00:53,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:00:53,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242869303] [2023-04-02 05:00:53,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:53,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:00:53,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:53,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:00:53,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:53,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:00:53,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:53,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-04-02 05:00:53,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:53,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-04-02 05:00:53,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:53,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-04-02 05:00:53,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:53,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-04-02 05:00:53,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:53,595 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 05:00:53,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:00:53,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242869303] [2023-04-02 05:00:53,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242869303] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:00:53,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:00:53,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 05:00:53,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874566977] [2023-04-02 05:00:53,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:00:53,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 05:00:53,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:00:53,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 05:00:53,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-04-02 05:00:53,597 INFO L87 Difference]: Start difference. First operand 199 states and 290 transitions. Second operand has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (8), 6 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-04-02 05:00:54,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:00:54,693 INFO L93 Difference]: Finished difference Result 499 states and 740 transitions. [2023-04-02 05:00:54,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-04-02 05:00:54,697 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (8), 6 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 80 [2023-04-02 05:00:54,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:00:54,698 INFO L225 Difference]: With dead ends: 499 [2023-04-02 05:00:54,698 INFO L226 Difference]: Without dead ends: 359 [2023-04-02 05:00:54,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=102, Invalid=240, Unknown=0, NotChecked=0, Total=342 [2023-04-02 05:00:54,700 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 864 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 676 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 867 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-02 05:00:54,701 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [867 Valid, 63 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 676 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-02 05:00:54,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2023-04-02 05:00:54,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 327. [2023-04-02 05:00:54,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 277 states have (on average 1.5415162454873645) internal successors, (427), 281 states have internal predecessors, (427), 23 states have call successors, (23), 23 states have call predecessors, (23), 26 states have return successors, (30), 22 states have call predecessors, (30), 22 states have call successors, (30) [2023-04-02 05:00:54,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 480 transitions. [2023-04-02 05:00:54,736 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 480 transitions. Word has length 80 [2023-04-02 05:00:54,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:00:54,736 INFO L495 AbstractCegarLoop]: Abstraction has 327 states and 480 transitions. [2023-04-02 05:00:54,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (8), 6 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-04-02 05:00:54,737 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 480 transitions. [2023-04-02 05:00:54,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-04-02 05:00:54,737 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:00:54,738 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] [2023-04-02 05:00:54,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 05:00:54,738 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:00:54,738 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:00:54,738 INFO L85 PathProgramCache]: Analyzing trace with hash -792580383, now seen corresponding path program 1 times [2023-04-02 05:00:54,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:00:54,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038624449] [2023-04-02 05:00:54,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:54,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:00:54,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:54,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:00:54,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:54,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:00:54,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:54,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-04-02 05:00:54,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:54,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-04-02 05:00:54,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:54,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-04-02 05:00:55,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:55,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-04-02 05:00:55,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:55,031 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 05:00:55,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:00:55,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038624449] [2023-04-02 05:00:55,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038624449] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:00:55,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:00:55,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 05:00:55,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856832921] [2023-04-02 05:00:55,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:00:55,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 05:00:55,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:00:55,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 05:00:55,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-04-02 05:00:55,033 INFO L87 Difference]: Start difference. First operand 327 states and 480 transitions. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (8), 6 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-04-02 05:00:56,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:00:56,313 INFO L93 Difference]: Finished difference Result 903 states and 1334 transitions. [2023-04-02 05:00:56,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-04-02 05:00:56,314 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (8), 6 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 82 [2023-04-02 05:00:56,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:00:56,317 INFO L225 Difference]: With dead ends: 903 [2023-04-02 05:00:56,317 INFO L226 Difference]: Without dead ends: 635 [2023-04-02 05:00:56,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=102, Invalid=240, Unknown=0, NotChecked=0, Total=342 [2023-04-02 05:00:56,318 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 554 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 721 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 556 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-02 05:00:56,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [556 Valid, 64 Invalid, 736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 721 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-02 05:00:56,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2023-04-02 05:00:56,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 573. [2023-04-02 05:00:56,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 475 states have (on average 1.5347368421052632) internal successors, (729), 487 states have internal predecessors, (729), 43 states have call successors, (43), 43 states have call predecessors, (43), 54 states have return successors, (66), 42 states have call predecessors, (66), 42 states have call successors, (66) [2023-04-02 05:00:56,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 838 transitions. [2023-04-02 05:00:56,378 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 838 transitions. Word has length 82 [2023-04-02 05:00:56,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:00:56,379 INFO L495 AbstractCegarLoop]: Abstraction has 573 states and 838 transitions. [2023-04-02 05:00:56,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (8), 6 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-04-02 05:00:56,379 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 838 transitions. [2023-04-02 05:00:56,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-04-02 05:00:56,380 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:00:56,380 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] [2023-04-02 05:00:56,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 05:00:56,380 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:00:56,381 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:00:56,381 INFO L85 PathProgramCache]: Analyzing trace with hash -2025472473, now seen corresponding path program 1 times [2023-04-02 05:00:56,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:00:56,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794196196] [2023-04-02 05:00:56,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:56,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:00:56,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:56,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:00:56,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:56,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:00:56,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:56,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-04-02 05:00:56,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:56,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-04-02 05:00:56,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:56,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-04-02 05:00:56,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:56,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-04-02 05:00:56,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:56,869 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 05:00:56,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:00:56,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794196196] [2023-04-02 05:00:56,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794196196] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:00:56,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:00:56,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 05:00:56,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650721412] [2023-04-02 05:00:56,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:00:56,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 05:00:56,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:00:56,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 05:00:56,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-04-02 05:00:56,872 INFO L87 Difference]: Start difference. First operand 573 states and 838 transitions. Second operand has 13 states, 13 states have (on average 5.384615384615385) internal successors, (70), 9 states have internal predecessors, (70), 3 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-04-02 05:01:00,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:01:00,847 INFO L93 Difference]: Finished difference Result 3422 states and 5185 transitions. [2023-04-02 05:01:00,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2023-04-02 05:01:00,847 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.384615384615385) internal successors, (70), 9 states have internal predecessors, (70), 3 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 84 [2023-04-02 05:01:00,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:01:00,858 INFO L225 Difference]: With dead ends: 3422 [2023-04-02 05:01:00,858 INFO L226 Difference]: Without dead ends: 2908 [2023-04-02 05:01:00,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1050 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=724, Invalid=2816, Unknown=0, NotChecked=0, Total=3540 [2023-04-02 05:01:00,861 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 2640 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 2214 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2649 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 2371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 2214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-04-02 05:01:00,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2649 Valid, 128 Invalid, 2371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 2214 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-04-02 05:01:00,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2908 states. [2023-04-02 05:01:01,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2908 to 2588. [2023-04-02 05:01:01,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2588 states, 2117 states have (on average 1.5498346717052434) internal successors, (3281), 2182 states have internal predecessors, (3281), 203 states have call successors, (203), 203 states have call predecessors, (203), 267 states have return successors, (434), 202 states have call predecessors, (434), 202 states have call successors, (434) [2023-04-02 05:01:01,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2588 states to 2588 states and 3918 transitions. [2023-04-02 05:01:01,116 INFO L78 Accepts]: Start accepts. Automaton has 2588 states and 3918 transitions. Word has length 84 [2023-04-02 05:01:01,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:01:01,116 INFO L495 AbstractCegarLoop]: Abstraction has 2588 states and 3918 transitions. [2023-04-02 05:01:01,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.384615384615385) internal successors, (70), 9 states have internal predecessors, (70), 3 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-04-02 05:01:01,116 INFO L276 IsEmpty]: Start isEmpty. Operand 2588 states and 3918 transitions. [2023-04-02 05:01:01,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-04-02 05:01:01,118 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:01:01,118 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] [2023-04-02 05:01:01,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-02 05:01:01,119 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:01:01,119 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:01:01,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1603116332, now seen corresponding path program 1 times [2023-04-02 05:01:01,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:01:01,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214500256] [2023-04-02 05:01:01,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:01:01,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:01:01,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:01,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:01:01,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:01,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:01:01,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:01,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-04-02 05:01:01,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:01,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-04-02 05:01:01,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:01,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-04-02 05:01:01,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:01,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-04-02 05:01:01,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:01,419 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 05:01:01,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:01:01,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214500256] [2023-04-02 05:01:01,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214500256] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:01:01,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:01:01,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-04-02 05:01:01,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974242223] [2023-04-02 05:01:01,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:01:01,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 05:01:01,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:01:01,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 05:01:01,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-04-02 05:01:01,421 INFO L87 Difference]: Start difference. First operand 2588 states and 3918 transitions. Second operand has 10 states, 10 states have (on average 7.1) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (8), 6 states have call predecessors, (8), 4 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-04-02 05:01:03,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:01:03,946 INFO L93 Difference]: Finished difference Result 8188 states and 12477 transitions. [2023-04-02 05:01:03,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-04-02 05:01:03,947 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.1) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (8), 6 states have call predecessors, (8), 4 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 85 [2023-04-02 05:01:03,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:01:03,973 INFO L225 Difference]: With dead ends: 8188 [2023-04-02 05:01:03,973 INFO L226 Difference]: Without dead ends: 5659 [2023-04-02 05:01:03,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=261, Invalid=861, Unknown=0, NotChecked=0, Total=1122 [2023-04-02 05:01:03,983 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 1159 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 1646 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1167 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 1718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 1646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-04-02 05:01:03,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1167 Valid, 137 Invalid, 1718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 1646 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-04-02 05:01:03,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5659 states. [2023-04-02 05:01:04,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5659 to 5089. [2023-04-02 05:01:04,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5089 states, 4141 states have (on average 1.5428640425018112) internal successors, (6389), 4283 states have internal predecessors, (6389), 403 states have call successors, (403), 403 states have call predecessors, (403), 544 states have return successors, (928), 402 states have call predecessors, (928), 402 states have call successors, (928) [2023-04-02 05:01:04,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5089 states to 5089 states and 7720 transitions. [2023-04-02 05:01:04,473 INFO L78 Accepts]: Start accepts. Automaton has 5089 states and 7720 transitions. Word has length 85 [2023-04-02 05:01:04,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:01:04,473 INFO L495 AbstractCegarLoop]: Abstraction has 5089 states and 7720 transitions. [2023-04-02 05:01:04,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.1) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (8), 6 states have call predecessors, (8), 4 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-04-02 05:01:04,474 INFO L276 IsEmpty]: Start isEmpty. Operand 5089 states and 7720 transitions. [2023-04-02 05:01:04,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-04-02 05:01:04,476 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:01:04,476 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] [2023-04-02 05:01:04,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-02 05:01:04,477 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:01:04,477 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:01:04,478 INFO L85 PathProgramCache]: Analyzing trace with hash -664744119, now seen corresponding path program 1 times [2023-04-02 05:01:04,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:01:04,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293476354] [2023-04-02 05:01:04,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:01:04,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:01:04,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:04,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:01:04,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:04,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:01:04,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:04,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-04-02 05:01:04,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:04,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-04-02 05:01:04,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:04,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-04-02 05:01:04,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:04,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 05:01:04,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:04,748 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 05:01:04,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:01:04,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293476354] [2023-04-02 05:01:04,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293476354] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:01:04,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:01:04,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 05:01:04,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910443379] [2023-04-02 05:01:04,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:01:04,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 05:01:04,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:01:04,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 05:01:04,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-04-02 05:01:04,749 INFO L87 Difference]: Start difference. First operand 5089 states and 7720 transitions. Second operand has 8 states, 8 states have (on average 8.875) internal successors, (71), 4 states have internal predecessors, (71), 3 states have call successors, (8), 6 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-04-02 05:01:07,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:01:07,506 INFO L93 Difference]: Finished difference Result 17682 states and 27426 transitions. [2023-04-02 05:01:07,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-04-02 05:01:07,507 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 4 states have internal predecessors, (71), 3 states have call successors, (8), 6 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 85 [2023-04-02 05:01:07,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:01:07,573 INFO L225 Difference]: With dead ends: 17682 [2023-04-02 05:01:07,573 INFO L226 Difference]: Without dead ends: 12652 [2023-04-02 05:01:07,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2023-04-02 05:01:07,587 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 674 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 1439 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 682 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 1465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-04-02 05:01:07,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [682 Valid, 128 Invalid, 1465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1439 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-04-02 05:01:07,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12652 states. [2023-04-02 05:01:08,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12652 to 11588. [2023-04-02 05:01:08,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11588 states, 9442 states have (on average 1.5150391866130057) internal successors, (14305), 9751 states have internal predecessors, (14305), 918 states have call successors, (918), 918 states have call predecessors, (918), 1227 states have return successors, (2211), 918 states have call predecessors, (2211), 917 states have call successors, (2211) [2023-04-02 05:01:08,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11588 states to 11588 states and 17434 transitions. [2023-04-02 05:01:08,813 INFO L78 Accepts]: Start accepts. Automaton has 11588 states and 17434 transitions. Word has length 85 [2023-04-02 05:01:08,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:01:08,813 INFO L495 AbstractCegarLoop]: Abstraction has 11588 states and 17434 transitions. [2023-04-02 05:01:08,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 4 states have internal predecessors, (71), 3 states have call successors, (8), 6 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-04-02 05:01:08,814 INFO L276 IsEmpty]: Start isEmpty. Operand 11588 states and 17434 transitions. [2023-04-02 05:01:08,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-04-02 05:01:08,820 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:01:08,820 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] [2023-04-02 05:01:08,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-02 05:01:08,820 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:01:08,821 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:01:08,821 INFO L85 PathProgramCache]: Analyzing trace with hash -524195509, now seen corresponding path program 1 times [2023-04-02 05:01:08,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:01:08,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504782921] [2023-04-02 05:01:08,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:01:08,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:01:08,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:09,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:01:09,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:09,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:01:09,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:09,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-04-02 05:01:09,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:09,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-04-02 05:01:09,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:09,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-04-02 05:01:09,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:09,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 05:01:09,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:09,304 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 05:01:09,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:01:09,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504782921] [2023-04-02 05:01:09,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504782921] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:01:09,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:01:09,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 05:01:09,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800604675] [2023-04-02 05:01:09,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:01:09,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 05:01:09,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:01:09,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 05:01:09,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-04-02 05:01:09,306 INFO L87 Difference]: Start difference. First operand 11588 states and 17434 transitions. Second operand has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 9 states have internal predecessors, (71), 4 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2023-04-02 05:01:15,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:01:15,678 INFO L93 Difference]: Finished difference Result 23210 states and 34630 transitions. [2023-04-02 05:01:15,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2023-04-02 05:01:15,679 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 9 states have internal predecessors, (71), 4 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 85 [2023-04-02 05:01:15,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:01:15,751 INFO L225 Difference]: With dead ends: 23210 [2023-04-02 05:01:15,752 INFO L226 Difference]: Without dead ends: 16926 [2023-04-02 05:01:15,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1427 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=794, Invalid=3628, Unknown=0, NotChecked=0, Total=4422 [2023-04-02 05:01:15,776 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 1559 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 3798 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1570 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 3897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 3798 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-04-02 05:01:15,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1570 Valid, 224 Invalid, 3897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 3798 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-04-02 05:01:15,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16926 states. [2023-04-02 05:01:17,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16926 to 15262. [2023-04-02 05:01:17,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15262 states, 12496 states have (on average 1.5205665813060179) internal successors, (19001), 12865 states have internal predecessors, (19001), 1198 states have call successors, (1198), 1198 states have call predecessors, (1198), 1567 states have return successors, (2777), 1198 states have call predecessors, (2777), 1197 states have call successors, (2777) [2023-04-02 05:01:17,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15262 states to 15262 states and 22976 transitions. [2023-04-02 05:01:17,222 INFO L78 Accepts]: Start accepts. Automaton has 15262 states and 22976 transitions. Word has length 85 [2023-04-02 05:01:17,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:01:17,222 INFO L495 AbstractCegarLoop]: Abstraction has 15262 states and 22976 transitions. [2023-04-02 05:01:17,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 9 states have internal predecessors, (71), 4 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2023-04-02 05:01:17,222 INFO L276 IsEmpty]: Start isEmpty. Operand 15262 states and 22976 transitions. [2023-04-02 05:01:17,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-04-02 05:01:17,228 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:01:17,228 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] [2023-04-02 05:01:17,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-02 05:01:17,228 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:01:17,228 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:01:17,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1738181136, now seen corresponding path program 1 times [2023-04-02 05:01:17,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:01:17,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641020727] [2023-04-02 05:01:17,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:01:17,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:01:17,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:01:17,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:01:17,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-04-02 05:01:17,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-04-02 05:01:17,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-04-02 05:01:17,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 05:01:17,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,462 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 05:01:17,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:01:17,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641020727] [2023-04-02 05:01:17,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641020727] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:01:17,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:01:17,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 05:01:17,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055114788] [2023-04-02 05:01:17,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:01:17,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 05:01:17,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:01:17,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 05:01:17,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-04-02 05:01:17,463 INFO L87 Difference]: Start difference. First operand 15262 states and 22976 transitions. Second operand has 8 states, 8 states have (on average 8.875) internal successors, (71), 4 states have internal predecessors, (71), 3 states have call successors, (8), 6 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-04-02 05:01:21,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:01:21,623 INFO L93 Difference]: Finished difference Result 51666 states and 78659 transitions. [2023-04-02 05:01:21,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-04-02 05:01:21,624 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 4 states have internal predecessors, (71), 3 states have call successors, (8), 6 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 85 [2023-04-02 05:01:21,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:01:21,843 INFO L225 Difference]: With dead ends: 51666 [2023-04-02 05:01:21,843 INFO L226 Difference]: Without dead ends: 36586 [2023-04-02 05:01:21,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2023-04-02 05:01:21,880 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 679 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 1205 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 687 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 1233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-02 05:01:21,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [687 Valid, 124 Invalid, 1233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1205 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-02 05:01:21,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36586 states. [2023-04-02 05:01:25,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36586 to 34092. [2023-04-02 05:01:25,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34092 states, 27861 states have (on average 1.4844406159147194) internal successors, (41358), 28667 states have internal predecessors, (41358), 2711 states have call successors, (2711), 2711 states have call predecessors, (2711), 3519 states have return successors, (6541), 2713 states have call predecessors, (6541), 2710 states have call successors, (6541) [2023-04-02 05:01:25,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34092 states to 34092 states and 50610 transitions. [2023-04-02 05:01:25,167 INFO L78 Accepts]: Start accepts. Automaton has 34092 states and 50610 transitions. Word has length 85 [2023-04-02 05:01:25,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:01:25,168 INFO L495 AbstractCegarLoop]: Abstraction has 34092 states and 50610 transitions. [2023-04-02 05:01:25,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 4 states have internal predecessors, (71), 3 states have call successors, (8), 6 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-04-02 05:01:25,168 INFO L276 IsEmpty]: Start isEmpty. Operand 34092 states and 50610 transitions. [2023-04-02 05:01:25,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-04-02 05:01:25,181 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:01:25,181 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] [2023-04-02 05:01:25,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-04-02 05:01:25,181 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:01:25,182 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:01:25,182 INFO L85 PathProgramCache]: Analyzing trace with hash -505802162, now seen corresponding path program 1 times [2023-04-02 05:01:25,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:01:25,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386063897] [2023-04-02 05:01:25,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:01:25,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:01:25,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:25,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:01:25,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:25,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:01:25,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:25,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-04-02 05:01:25,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:25,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-04-02 05:01:25,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:25,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-04-02 05:01:25,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:25,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 05:01:25,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:25,552 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 05:01:25,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:01:25,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386063897] [2023-04-02 05:01:25,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386063897] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:01:25,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:01:25,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 05:01:25,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558320452] [2023-04-02 05:01:25,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:01:25,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 05:01:25,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:01:25,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 05:01:25,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-04-02 05:01:25,554 INFO L87 Difference]: Start difference. First operand 34092 states and 50610 transitions. Second operand has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 9 states have internal predecessors, (71), 4 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2023-04-02 05:01:33,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:01:33,010 INFO L93 Difference]: Finished difference Result 59965 states and 88436 transitions. [2023-04-02 05:01:33,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2023-04-02 05:01:33,011 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 9 states have internal predecessors, (71), 4 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 85 [2023-04-02 05:01:33,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:01:33,156 INFO L225 Difference]: With dead ends: 59965 [2023-04-02 05:01:33,156 INFO L226 Difference]: Without dead ends: 43081 [2023-04-02 05:01:33,201 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1171 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=716, Invalid=3066, Unknown=0, NotChecked=0, Total=3782 [2023-04-02 05:01:33,203 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 2247 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 2668 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2258 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 2821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 2668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-04-02 05:01:33,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2258 Valid, 197 Invalid, 2821 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 2668 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-04-02 05:01:33,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43081 states. [2023-04-02 05:01:36,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43081 to 39012. [2023-04-02 05:01:36,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39012 states, 31943 states have (on average 1.490279560467082) internal successors, (47604), 32883 states have internal predecessors, (47604), 3063 states have call successors, (3063), 3063 states have call predecessors, (3063), 4005 states have return successors, (7287), 3065 states have call predecessors, (7287), 3062 states have call successors, (7287) [2023-04-02 05:01:37,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39012 states to 39012 states and 57954 transitions. [2023-04-02 05:01:37,120 INFO L78 Accepts]: Start accepts. Automaton has 39012 states and 57954 transitions. Word has length 85 [2023-04-02 05:01:37,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:01:37,121 INFO L495 AbstractCegarLoop]: Abstraction has 39012 states and 57954 transitions. [2023-04-02 05:01:37,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 9 states have internal predecessors, (71), 4 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2023-04-02 05:01:37,121 INFO L276 IsEmpty]: Start isEmpty. Operand 39012 states and 57954 transitions. [2023-04-02 05:01:37,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-04-02 05:01:37,139 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:01:37,140 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] [2023-04-02 05:01:37,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-04-02 05:01:37,140 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:01:37,140 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:01:37,140 INFO L85 PathProgramCache]: Analyzing trace with hash -834280555, now seen corresponding path program 1 times [2023-04-02 05:01:37,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:01:37,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529884646] [2023-04-02 05:01:37,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:01:37,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:01:37,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:37,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:01:37,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:37,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:01:37,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:37,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-04-02 05:01:37,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:37,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 05:01:37,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:37,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-04-02 05:01:37,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:37,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 05:01:37,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:37,651 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 05:01:37,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:01:37,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529884646] [2023-04-02 05:01:37,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529884646] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:01:37,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:01:37,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 05:01:37,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175277027] [2023-04-02 05:01:37,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:01:37,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 05:01:37,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:01:37,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 05:01:37,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-04-02 05:01:37,654 INFO L87 Difference]: Start difference. First operand 39012 states and 57954 transitions. Second operand has 8 states, 8 states have (on average 8.875) internal successors, (71), 4 states have internal predecessors, (71), 3 states have call successors, (8), 6 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-04-02 05:01:46,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:01:46,147 INFO L93 Difference]: Finished difference Result 123675 states and 187770 transitions. [2023-04-02 05:01:46,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-04-02 05:01:46,148 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 4 states have internal predecessors, (71), 3 states have call successors, (8), 6 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 85 [2023-04-02 05:01:46,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:01:46,469 INFO L225 Difference]: With dead ends: 123675 [2023-04-02 05:01:46,470 INFO L226 Difference]: Without dead ends: 85363 [2023-04-02 05:01:46,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2023-04-02 05:01:46,546 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 1026 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 1139 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1032 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 1192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-04-02 05:01:46,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1032 Valid, 126 Invalid, 1192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1139 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-04-02 05:01:46,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85363 states. [2023-04-02 05:01:54,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85363 to 81007. [2023-04-02 05:01:55,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81007 states, 66264 states have (on average 1.449399372208137) internal successors, (96043), 68192 states have internal predecessors, (96043), 6404 states have call successors, (6404), 6404 states have call predecessors, (6404), 8338 states have return successors, (15536), 6410 states have call predecessors, (15536), 6403 states have call successors, (15536) [2023-04-02 05:01:55,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81007 states to 81007 states and 117983 transitions. [2023-04-02 05:01:55,503 INFO L78 Accepts]: Start accepts. Automaton has 81007 states and 117983 transitions. Word has length 85 [2023-04-02 05:01:55,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:01:55,504 INFO L495 AbstractCegarLoop]: Abstraction has 81007 states and 117983 transitions. [2023-04-02 05:01:55,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 4 states have internal predecessors, (71), 3 states have call successors, (8), 6 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-04-02 05:01:55,504 INFO L276 IsEmpty]: Start isEmpty. Operand 81007 states and 117983 transitions. [2023-04-02 05:01:55,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-04-02 05:01:55,566 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:01:55,566 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] [2023-04-02 05:01:55,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-04-02 05:01:55,567 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:01:55,567 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:01:55,567 INFO L85 PathProgramCache]: Analyzing trace with hash -693731945, now seen corresponding path program 1 times [2023-04-02 05:01:55,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:01:55,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99620277] [2023-04-02 05:01:55,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:01:55,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:01:55,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:55,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:01:55,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:55,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:01:55,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:55,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-04-02 05:01:55,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:55,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 05:01:55,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:55,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-04-02 05:01:55,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:55,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 05:01:55,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:55,778 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 05:01:55,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:01:55,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99620277] [2023-04-02 05:01:55,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99620277] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:01:55,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:01:55,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 05:01:55,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943693688] [2023-04-02 05:01:55,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:01:55,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 05:01:55,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:01:55,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 05:01:55,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-04-02 05:01:55,779 INFO L87 Difference]: Start difference. First operand 81007 states and 117983 transitions. Second operand has 8 states, 8 states have (on average 8.875) internal successors, (71), 4 states have internal predecessors, (71), 3 states have call successors, (8), 6 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-04-02 05:02:14,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:02:14,055 INFO L93 Difference]: Finished difference Result 255977 states and 381133 transitions. [2023-04-02 05:02:14,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-04-02 05:02:14,056 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 4 states have internal predecessors, (71), 3 states have call successors, (8), 6 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 85 [2023-04-02 05:02:14,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:02:14,812 INFO L225 Difference]: With dead ends: 255977 [2023-04-02 05:02:14,812 INFO L226 Difference]: Without dead ends: 176016 [2023-04-02 05:02:14,985 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2023-04-02 05:02:14,987 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 786 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 1364 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 791 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 1399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-04-02 05:02:14,987 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [791 Valid, 130 Invalid, 1399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1364 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-04-02 05:02:15,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176016 states. [2023-04-02 05:02:32,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176016 to 170489. [2023-04-02 05:02:32,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170489 states, 139398 states have (on average 1.4078322501040188) internal successors, (196249), 143390 states have internal predecessors, (196249), 13542 states have call successors, (13542), 13542 states have call predecessors, (13542), 17548 states have return successors, (33966), 13556 states have call predecessors, (33966), 13541 states have call successors, (33966) [2023-04-02 05:02:33,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170489 states to 170489 states and 243757 transitions. [2023-04-02 05:02:33,070 INFO L78 Accepts]: Start accepts. Automaton has 170489 states and 243757 transitions. Word has length 85 [2023-04-02 05:02:33,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:02:33,070 INFO L495 AbstractCegarLoop]: Abstraction has 170489 states and 243757 transitions. [2023-04-02 05:02:33,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 4 states have internal predecessors, (71), 3 states have call successors, (8), 6 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-04-02 05:02:33,070 INFO L276 IsEmpty]: Start isEmpty. Operand 170489 states and 243757 transitions. [2023-04-02 05:02:33,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-04-02 05:02:33,155 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:02:33,155 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] [2023-04-02 05:02:33,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-04-02 05:02:33,156 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:02:33,156 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:02:33,156 INFO L85 PathProgramCache]: Analyzing trace with hash 2012887449, now seen corresponding path program 1 times [2023-04-02 05:02:33,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:02:33,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468372659] [2023-04-02 05:02:33,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:02:33,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:02:33,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:33,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:02:33,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:33,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:02:33,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:33,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-04-02 05:02:33,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:33,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 05:02:33,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:33,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-04-02 05:02:33,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:33,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 05:02:33,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:33,843 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 05:02:33,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:02:33,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468372659] [2023-04-02 05:02:33,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468372659] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:02:33,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:02:33,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 05:02:33,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90557948] [2023-04-02 05:02:33,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:02:33,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 05:02:33,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:02:33,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 05:02:33,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-04-02 05:02:33,844 INFO L87 Difference]: Start difference. First operand 170489 states and 243757 transitions. Second operand has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 9 states have internal predecessors, (71), 4 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2023-04-02 05:02:54,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:02:54,205 INFO L93 Difference]: Finished difference Result 252008 states and 358016 transitions. [2023-04-02 05:02:54,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2023-04-02 05:02:54,206 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 9 states have internal predecessors, (71), 4 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 85 [2023-04-02 05:02:54,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:02:55,342 INFO L225 Difference]: With dead ends: 252008 [2023-04-02 05:02:55,342 INFO L226 Difference]: Without dead ends: 179142 [2023-04-02 05:02:55,496 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1302 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=755, Invalid=3277, Unknown=0, NotChecked=0, Total=4032 [2023-04-02 05:02:55,496 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 2685 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 2517 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2697 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 2674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 2517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-04-02 05:02:55,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2697 Valid, 189 Invalid, 2674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 2517 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-04-02 05:02:55,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179142 states.