/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_lcr-var-start-time.6.1.ufo.BOUNDED-12.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 05:12:44,114 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 05:12:44,116 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 05:12:44,154 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 05:12:44,155 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 05:12:44,157 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 05:12:44,160 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 05:12:44,162 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 05:12:44,164 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 05:12:44,168 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 05:12:44,169 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 05:12:44,171 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 05:12:44,171 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 05:12:44,173 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 05:12:44,174 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 05:12:44,175 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 05:12:44,176 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 05:12:44,177 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 05:12:44,179 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 05:12:44,183 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 05:12:44,184 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 05:12:44,185 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 05:12:44,186 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 05:12:44,187 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 05:12:44,195 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 05:12:44,195 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 05:12:44,196 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 05:12:44,197 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 05:12:44,198 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 05:12:44,198 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 05:12:44,199 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 05:12:44,199 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 05:12:44,201 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 05:12:44,201 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 05:12:44,202 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 05:12:44,202 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 05:12:44,202 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 05:12:44,203 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 05:12:44,203 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 05:12:44,204 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 05:12:44,204 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 05:12:44,206 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 05:12:44,234 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 05:12:44,234 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 05:12:44,235 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 05:12:44,235 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 05:12:44,236 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 05:12:44,236 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 05:12:44,237 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 05:12:44,237 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 05:12:44,237 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 05:12:44,237 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 05:12:44,238 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 05:12:44,238 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 05:12:44,238 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 05:12:44,238 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 05:12:44,239 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 05:12:44,239 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 05:12:44,239 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 05:12:44,239 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 05:12:44,239 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 05:12:44,239 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 05:12:44,239 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 05:12:44,240 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 05:12:44,240 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 05:12:44,240 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 05:12:44,240 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 05:12:44,240 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 05:12:44,241 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 05:12:44,241 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 05:12:44,241 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 05:12:44,241 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 05:12:44,242 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 05:12:44,242 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 05:12:44,242 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 05:12:44,242 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 05:12:44,242 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 05:12:44,242 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 05:12:44,492 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 05:12:44,514 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 05:12:44,516 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 05:12:44,517 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 05:12:44,517 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 05:12:44,518 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.6.1.ufo.BOUNDED-12.pals.c [2023-04-02 05:12:45,646 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 05:12:45,851 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 05:12:45,852 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.6.1.ufo.BOUNDED-12.pals.c [2023-04-02 05:12:45,864 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/889b966c1/083704ed8eb04a85b7ab4c1ba11cffd5/FLAG6f057ea5b [2023-04-02 05:12:45,883 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/889b966c1/083704ed8eb04a85b7ab4c1ba11cffd5 [2023-04-02 05:12:45,885 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 05:12:45,887 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 05:12:45,890 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 05:12:45,890 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 05:12:45,894 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 05:12:45,895 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 05:12:45" (1/1) ... [2023-04-02 05:12:45,896 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5102ea13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:12:45, skipping insertion in model container [2023-04-02 05:12:45,896 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 05:12:45" (1/1) ... [2023-04-02 05:12:45,902 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 05:12:45,959 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 05:12:46,182 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_lcr-var-start-time.6.1.ufo.BOUNDED-12.pals.c[16977,16990] [2023-04-02 05:12:46,185 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 05:12:46,194 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 05:12:46,253 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_lcr-var-start-time.6.1.ufo.BOUNDED-12.pals.c[16977,16990] [2023-04-02 05:12:46,253 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 05:12:46,271 INFO L208 MainTranslator]: Completed translation [2023-04-02 05:12:46,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:12:46 WrapperNode [2023-04-02 05:12:46,272 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 05:12:46,274 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 05:12:46,274 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 05:12:46,274 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 05:12:46,285 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:12:46" (1/1) ... [2023-04-02 05:12:46,285 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:12:46" (1/1) ... [2023-04-02 05:12:46,308 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:12:46" (1/1) ... [2023-04-02 05:12:46,308 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:12:46" (1/1) ... [2023-04-02 05:12:46,319 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:12:46" (1/1) ... [2023-04-02 05:12:46,344 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:12:46" (1/1) ... [2023-04-02 05:12:46,347 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:12:46" (1/1) ... [2023-04-02 05:12:46,349 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:12:46" (1/1) ... [2023-04-02 05:12:46,353 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 05:12:46,353 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 05:12:46,353 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 05:12:46,354 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 05:12:46,354 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:12:46" (1/1) ... [2023-04-02 05:12:46,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 05:12:46,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:12:46,407 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 05:12:46,429 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 05:12:46,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 05:12:46,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 05:12:46,463 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 05:12:46,463 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-02 05:12:46,464 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2023-04-02 05:12:46,464 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2023-04-02 05:12:46,464 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2023-04-02 05:12:46,464 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2023-04-02 05:12:46,464 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2023-04-02 05:12:46,464 INFO L138 BoogieDeclarations]: Found implementation of procedure node6 [2023-04-02 05:12:46,465 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2023-04-02 05:12:46,465 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2023-04-02 05:12:46,465 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 05:12:46,465 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-04-02 05:12:46,465 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 05:12:46,465 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 05:12:46,465 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 05:12:46,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 05:12:46,465 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-02 05:12:46,465 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-04-02 05:12:46,466 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-04-02 05:12:46,466 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-02 05:12:46,466 INFO L130 BoogieDeclarations]: Found specification of procedure read [2023-04-02 05:12:46,466 INFO L130 BoogieDeclarations]: Found specification of procedure write [2023-04-02 05:12:46,466 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2023-04-02 05:12:46,466 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2023-04-02 05:12:46,466 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2023-04-02 05:12:46,466 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2023-04-02 05:12:46,466 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2023-04-02 05:12:46,466 INFO L130 BoogieDeclarations]: Found specification of procedure node6 [2023-04-02 05:12:46,466 INFO L130 BoogieDeclarations]: Found specification of procedure init [2023-04-02 05:12:46,467 INFO L130 BoogieDeclarations]: Found specification of procedure check [2023-04-02 05:12:46,467 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 05:12:46,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 05:12:46,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 05:12:46,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 05:12:46,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 05:12:46,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 05:12:46,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 05:12:46,618 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 05:12:46,619 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 05:12:47,273 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 05:12:47,281 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 05:12:47,281 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-02 05:12:47,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 05:12:47 BoogieIcfgContainer [2023-04-02 05:12:47,283 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 05:12:47,285 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 05:12:47,285 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 05:12:47,287 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 05:12:47,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 05:12:45" (1/3) ... [2023-04-02 05:12:47,288 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b2c3900 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 05:12:47, skipping insertion in model container [2023-04-02 05:12:47,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:12:46" (2/3) ... [2023-04-02 05:12:47,291 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b2c3900 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 05:12:47, skipping insertion in model container [2023-04-02 05:12:47,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 05:12:47" (3/3) ... [2023-04-02 05:12:47,292 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.6.1.ufo.BOUNDED-12.pals.c [2023-04-02 05:12:47,307 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 05:12:47,307 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 05:12:47,363 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 05:12:47,368 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;@6e2c842a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 05:12:47,369 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 05:12:47,374 INFO L276 IsEmpty]: Start isEmpty. Operand has 161 states, 135 states have (on average 1.674074074074074) internal successors, (226), 136 states have internal predecessors, (226), 12 states have call successors, (12), 12 states have call predecessors, (12), 12 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-04-02 05:12:47,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-04-02 05:12:47,386 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:12:47,388 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] [2023-04-02 05:12:47,388 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:12:47,393 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:12:47,394 INFO L85 PathProgramCache]: Analyzing trace with hash -2137983611, now seen corresponding path program 1 times [2023-04-02 05:12:47,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:12:47,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834184040] [2023-04-02 05:12:47,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:12:47,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:12:47,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:47,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:12:47,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:47,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:12:47,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:47,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 05:12:47,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:47,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:12:47,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:47,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-04-02 05:12:48,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:48,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:12:48,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:48,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 05:12:48,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:48,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-04-02 05:12:48,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:48,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-04-02 05:12:48,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:48,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-04-02 05:12:48,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:48,151 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 05:12:48,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:12:48,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834184040] [2023-04-02 05:12:48,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834184040] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:12:48,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:12:48,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 05:12:48,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543135857] [2023-04-02 05:12:48,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:12:48,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 05:12:48,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:12:48,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 05:12:48,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-04-02 05:12:48,200 INFO L87 Difference]: Start difference. First operand has 161 states, 135 states have (on average 1.674074074074074) internal successors, (226), 136 states have internal predecessors, (226), 12 states have call successors, (12), 12 states have call predecessors, (12), 12 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (12), 9 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-04-02 05:12:49,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:12:49,506 INFO L93 Difference]: Finished difference Result 272 states and 409 transitions. [2023-04-02 05:12:49,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-02 05:12:49,509 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (12), 9 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 74 [2023-04-02 05:12:49,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:12:49,517 INFO L225 Difference]: With dead ends: 272 [2023-04-02 05:12:49,517 INFO L226 Difference]: Without dead ends: 162 [2023-04-02 05:12:49,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2023-04-02 05:12:49,523 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 1050 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1050 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-02 05:12:49,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1050 Valid, 102 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-02 05:12:49,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2023-04-02 05:12:49,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 156. [2023-04-02 05:12:49,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 132 states have (on average 1.6590909090909092) internal successors, (219), 132 states have internal predecessors, (219), 12 states have call successors, (12), 12 states have call predecessors, (12), 11 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-04-02 05:12:49,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 242 transitions. [2023-04-02 05:12:49,583 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 242 transitions. Word has length 74 [2023-04-02 05:12:49,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:12:49,583 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 242 transitions. [2023-04-02 05:12:49,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (12), 9 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-04-02 05:12:49,584 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 242 transitions. [2023-04-02 05:12:49,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-04-02 05:12:49,586 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:12:49,586 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] [2023-04-02 05:12:49,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 05:12:49,587 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:12:49,587 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:12:49,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1577283833, now seen corresponding path program 1 times [2023-04-02 05:12:49,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:12:49,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654637141] [2023-04-02 05:12:49,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:12:49,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:12:49,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:49,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:12:49,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:49,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:12:49,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:49,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 05:12:49,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:50,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:12:50,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:50,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-04-02 05:12:50,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:50,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:12:50,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:50,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 05:12:50,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:50,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-04-02 05:12:50,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:50,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-04-02 05:12:50,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:50,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-04-02 05:12:50,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:50,135 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 05:12:50,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:12:50,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654637141] [2023-04-02 05:12:50,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654637141] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:12:50,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:12:50,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-04-02 05:12:50,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95597531] [2023-04-02 05:12:50,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:12:50,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-04-02 05:12:50,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:12:50,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-04-02 05:12:50,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2023-04-02 05:12:50,139 INFO L87 Difference]: Start difference. First operand 156 states and 242 transitions. Second operand has 15 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 7 states have internal predecessors, (52), 3 states have call successors, (12), 9 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-04-02 05:12:52,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:12:52,268 INFO L93 Difference]: Finished difference Result 277 states and 417 transitions. [2023-04-02 05:12:52,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-04-02 05:12:52,269 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 7 states have internal predecessors, (52), 3 states have call successors, (12), 9 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 74 [2023-04-02 05:12:52,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:12:52,272 INFO L225 Difference]: With dead ends: 277 [2023-04-02 05:12:52,272 INFO L226 Difference]: Without dead ends: 174 [2023-04-02 05:12:52,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=149, Invalid=451, Unknown=0, NotChecked=0, Total=600 [2023-04-02 05:12:52,274 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 1195 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 1768 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1203 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 1929 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 1768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-04-02 05:12:52,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1203 Valid, 146 Invalid, 1929 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 1768 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-04-02 05:12:52,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2023-04-02 05:12:52,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 156. [2023-04-02 05:12:52,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 132 states have (on average 1.3484848484848484) internal successors, (178), 132 states have internal predecessors, (178), 12 states have call successors, (12), 12 states have call predecessors, (12), 11 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-04-02 05:12:52,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 201 transitions. [2023-04-02 05:12:52,318 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 201 transitions. Word has length 74 [2023-04-02 05:12:52,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:12:52,318 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 201 transitions. [2023-04-02 05:12:52,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 7 states have internal predecessors, (52), 3 states have call successors, (12), 9 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-04-02 05:12:52,319 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 201 transitions. [2023-04-02 05:12:52,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-04-02 05:12:52,320 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:12:52,320 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:12:52,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 05:12:52,321 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:12:52,321 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:12:52,321 INFO L85 PathProgramCache]: Analyzing trace with hash 842471037, now seen corresponding path program 1 times [2023-04-02 05:12:52,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:12:52,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283549226] [2023-04-02 05:12:52,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:12:52,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:12:52,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:52,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:12:52,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:52,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:12:52,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:52,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 05:12:52,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:52,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-04-02 05:12:52,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:53,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-04-02 05:12:53,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:53,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 05:12:53,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:53,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 05:12:53,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:53,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-04-02 05:12:53,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:53,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-04-02 05:12:53,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:53,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-04-02 05:12:53,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:53,273 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 05:12:53,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:12:53,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283549226] [2023-04-02 05:12:53,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283549226] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:12:53,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:12:53,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2023-04-02 05:12:53,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004483348] [2023-04-02 05:12:53,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:12:53,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-04-02 05:12:53,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:12:53,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-04-02 05:12:53,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2023-04-02 05:12:53,276 INFO L87 Difference]: Start difference. First operand 156 states and 201 transitions. Second operand has 22 states, 22 states have (on average 4.181818181818182) internal successors, (92), 15 states have internal predecessors, (92), 3 states have call successors, (12), 9 states have call predecessors, (12), 9 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2023-04-02 05:13:05,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:13:05,513 INFO L93 Difference]: Finished difference Result 1549 states and 2236 transitions. [2023-04-02 05:13:05,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2023-04-02 05:13:05,514 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 4.181818181818182) internal successors, (92), 15 states have internal predecessors, (92), 3 states have call successors, (12), 9 states have call predecessors, (12), 9 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 114 [2023-04-02 05:13:05,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:13:05,533 INFO L225 Difference]: With dead ends: 1549 [2023-04-02 05:13:05,533 INFO L226 Difference]: Without dead ends: 1452 [2023-04-02 05:13:05,598 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7331 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=3498, Invalid=17094, Unknown=0, NotChecked=0, Total=20592 [2023-04-02 05:13:05,600 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 5593 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 5024 mSolverCounterSat, 551 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5607 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 5575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 551 IncrementalHoareTripleChecker+Valid, 5024 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-04-02 05:13:05,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5607 Valid, 328 Invalid, 5575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [551 Valid, 5024 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-04-02 05:13:05,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1452 states. [2023-04-02 05:13:05,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1452 to 1350. [2023-04-02 05:13:05,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1350 states, 1112 states have (on average 1.5197841726618706) internal successors, (1690), 1134 states have internal predecessors, (1690), 108 states have call successors, (108), 108 states have call predecessors, (108), 129 states have return successors, (191), 107 states have call predecessors, (191), 107 states have call successors, (191) [2023-04-02 05:13:05,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1350 states to 1350 states and 1989 transitions. [2023-04-02 05:13:05,864 INFO L78 Accepts]: Start accepts. Automaton has 1350 states and 1989 transitions. Word has length 114 [2023-04-02 05:13:05,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:13:05,865 INFO L495 AbstractCegarLoop]: Abstraction has 1350 states and 1989 transitions. [2023-04-02 05:13:05,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 4.181818181818182) internal successors, (92), 15 states have internal predecessors, (92), 3 states have call successors, (12), 9 states have call predecessors, (12), 9 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2023-04-02 05:13:05,865 INFO L276 IsEmpty]: Start isEmpty. Operand 1350 states and 1989 transitions. [2023-04-02 05:13:05,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-04-02 05:13:05,876 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:13:05,877 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:13:05,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 05:13:05,878 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:13:05,881 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:13:05,881 INFO L85 PathProgramCache]: Analyzing trace with hash -976194434, now seen corresponding path program 1 times [2023-04-02 05:13:05,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:13:05,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450773008] [2023-04-02 05:13:05,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:13:05,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:13:05,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:06,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:13:06,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:06,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:13:06,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:06,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 05:13:06,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:06,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-04-02 05:13:06,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:06,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-04-02 05:13:06,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:06,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 05:13:06,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:06,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 05:13:06,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:06,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-04-02 05:13:06,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:06,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-04-02 05:13:06,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:06,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-04-02 05:13:06,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:06,727 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 05:13:06,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:13:06,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450773008] [2023-04-02 05:13:06,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450773008] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:13:06,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:13:06,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-04-02 05:13:06,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083030678] [2023-04-02 05:13:06,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:13:06,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-04-02 05:13:06,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:13:06,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-04-02 05:13:06,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2023-04-02 05:13:06,730 INFO L87 Difference]: Start difference. First operand 1350 states and 1989 transitions. Second operand has 19 states, 17 states have (on average 5.470588235294118) internal successors, (93), 9 states have internal predecessors, (93), 3 states have call successors, (12), 9 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2023-04-02 05:13:09,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:13:09,482 INFO L93 Difference]: Finished difference Result 1583 states and 2332 transitions. [2023-04-02 05:13:09,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-04-02 05:13:09,482 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 5.470588235294118) internal successors, (93), 9 states have internal predecessors, (93), 3 states have call successors, (12), 9 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 115 [2023-04-02 05:13:09,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:13:09,494 INFO L225 Difference]: With dead ends: 1583 [2023-04-02 05:13:09,494 INFO L226 Difference]: Without dead ends: 1581 [2023-04-02 05:13:09,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=195, Invalid=797, Unknown=0, NotChecked=0, Total=992 [2023-04-02 05:13:09,501 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 522 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 2522 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 531 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 2535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 2522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-04-02 05:13:09,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [531 Valid, 346 Invalid, 2535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 2522 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-04-02 05:13:09,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1581 states. [2023-04-02 05:13:09,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1581 to 1413. [2023-04-02 05:13:09,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1413 states, 1154 states have (on average 1.5008665511265165) internal successors, (1732), 1183 states have internal predecessors, (1732), 115 states have call successors, (115), 115 states have call predecessors, (115), 143 states have return successors, (205), 114 states have call predecessors, (205), 114 states have call successors, (205) [2023-04-02 05:13:09,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1413 states to 1413 states and 2052 transitions. [2023-04-02 05:13:09,659 INFO L78 Accepts]: Start accepts. Automaton has 1413 states and 2052 transitions. Word has length 115 [2023-04-02 05:13:09,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:13:09,659 INFO L495 AbstractCegarLoop]: Abstraction has 1413 states and 2052 transitions. [2023-04-02 05:13:09,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 5.470588235294118) internal successors, (93), 9 states have internal predecessors, (93), 3 states have call successors, (12), 9 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2023-04-02 05:13:09,659 INFO L276 IsEmpty]: Start isEmpty. Operand 1413 states and 2052 transitions. [2023-04-02 05:13:09,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-04-02 05:13:09,662 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:13:09,662 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:13:09,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 05:13:09,662 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:13:09,663 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:13:09,663 INFO L85 PathProgramCache]: Analyzing trace with hash 59736181, now seen corresponding path program 1 times [2023-04-02 05:13:09,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:13:09,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559026064] [2023-04-02 05:13:09,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:13:09,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:13:09,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:10,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:13:10,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:10,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:13:10,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:10,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 05:13:10,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:10,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-04-02 05:13:10,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:10,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-04-02 05:13:10,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:10,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 05:13:10,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:10,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 05:13:10,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:10,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-04-02 05:13:10,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:10,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-04-02 05:13:10,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:10,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-04-02 05:13:10,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:10,247 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 05:13:10,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:13:10,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559026064] [2023-04-02 05:13:10,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559026064] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:13:10,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:13:10,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-04-02 05:13:10,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050465758] [2023-04-02 05:13:10,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:13:10,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-02 05:13:10,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:13:10,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-02 05:13:10,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2023-04-02 05:13:10,251 INFO L87 Difference]: Start difference. First operand 1413 states and 2052 transitions. Second operand has 14 states, 14 states have (on average 6.714285714285714) internal successors, (94), 7 states have internal predecessors, (94), 4 states have call successors, (12), 9 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2023-04-02 05:13:14,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:13:14,119 INFO L93 Difference]: Finished difference Result 6614 states and 9645 transitions. [2023-04-02 05:13:14,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-04-02 05:13:14,120 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.714285714285714) internal successors, (94), 7 states have internal predecessors, (94), 4 states have call successors, (12), 9 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) Word has length 116 [2023-04-02 05:13:14,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:13:14,143 INFO L225 Difference]: With dead ends: 6614 [2023-04-02 05:13:14,143 INFO L226 Difference]: Without dead ends: 5260 [2023-04-02 05:13:14,149 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=417, Invalid=1389, Unknown=0, NotChecked=0, Total=1806 [2023-04-02 05:13:14,150 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 2162 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 1703 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2177 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 1831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 1703 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-04-02 05:13:14,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2177 Valid, 148 Invalid, 1831 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 1703 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-04-02 05:13:14,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5260 states. [2023-04-02 05:13:14,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5260 to 4954. [2023-04-02 05:13:14,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4954 states, 4025 states have (on average 1.5122981366459627) internal successors, (6087), 4134 states have internal predecessors, (6087), 410 states have call successors, (410), 410 states have call predecessors, (410), 518 states have return successors, (801), 409 states have call predecessors, (801), 409 states have call successors, (801) [2023-04-02 05:13:14,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4954 states to 4954 states and 7298 transitions. [2023-04-02 05:13:14,767 INFO L78 Accepts]: Start accepts. Automaton has 4954 states and 7298 transitions. Word has length 116 [2023-04-02 05:13:14,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:13:14,768 INFO L495 AbstractCegarLoop]: Abstraction has 4954 states and 7298 transitions. [2023-04-02 05:13:14,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.714285714285714) internal successors, (94), 7 states have internal predecessors, (94), 4 states have call successors, (12), 9 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2023-04-02 05:13:14,769 INFO L276 IsEmpty]: Start isEmpty. Operand 4954 states and 7298 transitions. [2023-04-02 05:13:14,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-04-02 05:13:14,771 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:13:14,771 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:13:14,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 05:13:14,774 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:13:14,774 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:13:14,777 INFO L85 PathProgramCache]: Analyzing trace with hash 244286388, now seen corresponding path program 1 times [2023-04-02 05:13:14,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:13:14,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370257714] [2023-04-02 05:13:14,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:13:14,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:13:14,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:15,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:13:15,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:15,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:13:15,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:15,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 05:13:15,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:15,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-04-02 05:13:15,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:15,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-04-02 05:13:15,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:15,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-04-02 05:13:15,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:15,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 05:13:15,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:15,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-04-02 05:13:15,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:15,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-04-02 05:13:15,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:15,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-04-02 05:13:15,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:15,277 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 05:13:15,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:13:15,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370257714] [2023-04-02 05:13:15,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370257714] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:13:15,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:13:15,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-04-02 05:13:15,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578606376] [2023-04-02 05:13:15,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:13:15,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-04-02 05:13:15,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:13:15,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-04-02 05:13:15,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2023-04-02 05:13:15,280 INFO L87 Difference]: Start difference. First operand 4954 states and 7298 transitions. Second operand has 16 states, 16 states have (on average 5.9375) internal successors, (95), 9 states have internal predecessors, (95), 5 states have call successors, (12), 10 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 5 states have call successors, (10) [2023-04-02 05:13:18,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:13:18,923 INFO L93 Difference]: Finished difference Result 11356 states and 16655 transitions. [2023-04-02 05:13:18,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-04-02 05:13:18,924 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.9375) internal successors, (95), 9 states have internal predecessors, (95), 5 states have call successors, (12), 10 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 5 states have call successors, (10) Word has length 117 [2023-04-02 05:13:18,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:13:18,964 INFO L225 Difference]: With dead ends: 11356 [2023-04-02 05:13:18,964 INFO L226 Difference]: Without dead ends: 7563 [2023-04-02 05:13:18,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=344, Invalid=988, Unknown=0, NotChecked=0, Total=1332 [2023-04-02 05:13:18,976 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 2254 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 1031 mSolverCounterSat, 208 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2254 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 1239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 208 IncrementalHoareTripleChecker+Valid, 1031 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-04-02 05:13:18,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2254 Valid, 83 Invalid, 1239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [208 Valid, 1031 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-04-02 05:13:18,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7563 states. [2023-04-02 05:13:19,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7563 to 5176. [2023-04-02 05:13:19,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5176 states, 4209 states have (on average 1.5155618911855548) internal successors, (6379), 4325 states have internal predecessors, (6379), 426 states have call successors, (426), 426 states have call predecessors, (426), 540 states have return successors, (824), 424 states have call predecessors, (824), 425 states have call successors, (824) [2023-04-02 05:13:19,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5176 states to 5176 states and 7629 transitions. [2023-04-02 05:13:19,627 INFO L78 Accepts]: Start accepts. Automaton has 5176 states and 7629 transitions. Word has length 117 [2023-04-02 05:13:19,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:13:19,627 INFO L495 AbstractCegarLoop]: Abstraction has 5176 states and 7629 transitions. [2023-04-02 05:13:19,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.9375) internal successors, (95), 9 states have internal predecessors, (95), 5 states have call successors, (12), 10 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 5 states have call successors, (10) [2023-04-02 05:13:19,627 INFO L276 IsEmpty]: Start isEmpty. Operand 5176 states and 7629 transitions. [2023-04-02 05:13:19,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-04-02 05:13:19,630 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:13:19,630 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:13:19,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-02 05:13:19,631 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:13:19,631 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:13:19,631 INFO L85 PathProgramCache]: Analyzing trace with hash -472018584, now seen corresponding path program 1 times [2023-04-02 05:13:19,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:13:19,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047246751] [2023-04-02 05:13:19,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:13:19,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:13:19,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:19,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:13:19,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:19,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:13:19,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:19,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 05:13:19,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:20,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-04-02 05:13:20,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:20,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-04-02 05:13:20,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:20,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 05:13:20,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:20,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 05:13:20,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:20,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-04-02 05:13:20,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:20,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-04-02 05:13:20,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:20,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-04-02 05:13:20,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:20,170 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 05:13:20,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:13:20,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047246751] [2023-04-02 05:13:20,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047246751] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:13:20,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:13:20,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-04-02 05:13:20,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099088232] [2023-04-02 05:13:20,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:13:20,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-04-02 05:13:20,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:13:20,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-04-02 05:13:20,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2023-04-02 05:13:20,173 INFO L87 Difference]: Start difference. First operand 5176 states and 7629 transitions. Second operand has 16 states, 16 states have (on average 5.9375) internal successors, (95), 9 states have internal predecessors, (95), 5 states have call successors, (12), 10 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2023-04-02 05:13:23,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:13:23,808 INFO L93 Difference]: Finished difference Result 13142 states and 19165 transitions. [2023-04-02 05:13:23,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-04-02 05:13:23,809 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.9375) internal successors, (95), 9 states have internal predecessors, (95), 5 states have call successors, (12), 10 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) Word has length 117 [2023-04-02 05:13:23,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:13:23,847 INFO L225 Difference]: With dead ends: 13142 [2023-04-02 05:13:23,847 INFO L226 Difference]: Without dead ends: 8064 [2023-04-02 05:13:23,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=344, Invalid=988, Unknown=0, NotChecked=0, Total=1332 [2023-04-02 05:13:23,863 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 2059 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 1069 mSolverCounterSat, 155 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2059 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 1224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 155 IncrementalHoareTripleChecker+Valid, 1069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-04-02 05:13:23,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2059 Valid, 78 Invalid, 1224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [155 Valid, 1069 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-04-02 05:13:23,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8064 states. [2023-04-02 05:13:24,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8064 to 5176. [2023-04-02 05:13:24,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5176 states, 4207 states have (on average 1.5134299976230092) internal successors, (6367), 4325 states have internal predecessors, (6367), 426 states have call successors, (426), 426 states have call predecessors, (426), 542 states have return successors, (827), 424 states have call predecessors, (827), 425 states have call successors, (827) [2023-04-02 05:13:24,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5176 states to 5176 states and 7620 transitions. [2023-04-02 05:13:24,742 INFO L78 Accepts]: Start accepts. Automaton has 5176 states and 7620 transitions. Word has length 117 [2023-04-02 05:13:24,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:13:24,742 INFO L495 AbstractCegarLoop]: Abstraction has 5176 states and 7620 transitions. [2023-04-02 05:13:24,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.9375) internal successors, (95), 9 states have internal predecessors, (95), 5 states have call successors, (12), 10 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2023-04-02 05:13:24,743 INFO L276 IsEmpty]: Start isEmpty. Operand 5176 states and 7620 transitions. [2023-04-02 05:13:24,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-04-02 05:13:24,746 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:13:24,746 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:13:24,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-02 05:13:24,747 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:13:24,748 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:13:24,749 INFO L85 PathProgramCache]: Analyzing trace with hash -338350072, now seen corresponding path program 1 times [2023-04-02 05:13:24,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:13:24,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943990446] [2023-04-02 05:13:24,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:13:24,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:13:24,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:25,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:13:25,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:25,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:13:25,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:25,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 05:13:25,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:25,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-04-02 05:13:25,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:25,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-04-02 05:13:25,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:25,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 05:13:25,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:25,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 05:13:25,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:25,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-04-02 05:13:25,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:25,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-04-02 05:13:25,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:25,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-04-02 05:13:25,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:25,273 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 05:13:25,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:13:25,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943990446] [2023-04-02 05:13:25,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943990446] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:13:25,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:13:25,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-04-02 05:13:25,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210320910] [2023-04-02 05:13:25,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:13:25,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-04-02 05:13:25,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:13:25,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-04-02 05:13:25,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2023-04-02 05:13:25,275 INFO L87 Difference]: Start difference. First operand 5176 states and 7620 transitions. Second operand has 16 states, 16 states have (on average 5.9375) internal successors, (95), 9 states have internal predecessors, (95), 5 states have call successors, (12), 10 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2023-04-02 05:13:28,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:13:28,887 INFO L93 Difference]: Finished difference Result 10860 states and 15709 transitions. [2023-04-02 05:13:28,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-04-02 05:13:28,888 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.9375) internal successors, (95), 9 states have internal predecessors, (95), 5 states have call successors, (12), 10 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) Word has length 117 [2023-04-02 05:13:28,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:13:28,922 INFO L225 Difference]: With dead ends: 10860 [2023-04-02 05:13:28,922 INFO L226 Difference]: Without dead ends: 5932 [2023-04-02 05:13:28,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=344, Invalid=988, Unknown=0, NotChecked=0, Total=1332 [2023-04-02 05:13:28,935 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 2352 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 1060 mSolverCounterSat, 200 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2352 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 1260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 200 IncrementalHoareTripleChecker+Valid, 1060 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-02 05:13:28,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2352 Valid, 78 Invalid, 1260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [200 Valid, 1060 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-02 05:13:28,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5932 states. [2023-04-02 05:13:29,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5932 to 5292. [2023-04-02 05:13:29,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5292 states, 4302 states have (on average 1.5120874012087402) internal successors, (6505), 4423 states have internal predecessors, (6505), 435 states have call successors, (435), 435 states have call predecessors, (435), 554 states have return successors, (841), 433 states have call predecessors, (841), 434 states have call successors, (841) [2023-04-02 05:13:29,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5292 states to 5292 states and 7781 transitions. [2023-04-02 05:13:29,472 INFO L78 Accepts]: Start accepts. Automaton has 5292 states and 7781 transitions. Word has length 117 [2023-04-02 05:13:29,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:13:29,473 INFO L495 AbstractCegarLoop]: Abstraction has 5292 states and 7781 transitions. [2023-04-02 05:13:29,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.9375) internal successors, (95), 9 states have internal predecessors, (95), 5 states have call successors, (12), 10 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2023-04-02 05:13:29,474 INFO L276 IsEmpty]: Start isEmpty. Operand 5292 states and 7781 transitions. [2023-04-02 05:13:29,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-04-02 05:13:29,475 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:13:29,476 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:13:29,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-02 05:13:29,476 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:13:29,476 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:13:29,476 INFO L85 PathProgramCache]: Analyzing trace with hash 933803573, now seen corresponding path program 1 times [2023-04-02 05:13:29,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:13:29,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271052093] [2023-04-02 05:13:29,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:13:29,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:13:29,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:29,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:13:29,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:29,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:13:29,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:29,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 05:13:29,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:29,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-04-02 05:13:29,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:29,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-04-02 05:13:29,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:29,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 05:13:29,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:29,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 05:13:29,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:29,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-04-02 05:13:29,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:29,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-04-02 05:13:29,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:29,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-04-02 05:13:29,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:29,982 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 05:13:29,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:13:29,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271052093] [2023-04-02 05:13:29,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271052093] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:13:29,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:13:29,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-04-02 05:13:29,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632358719] [2023-04-02 05:13:29,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:13:29,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-04-02 05:13:29,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:13:29,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-04-02 05:13:29,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2023-04-02 05:13:29,985 INFO L87 Difference]: Start difference. First operand 5292 states and 7781 transitions. Second operand has 16 states, 16 states have (on average 5.9375) internal successors, (95), 9 states have internal predecessors, (95), 5 states have call successors, (12), 10 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2023-04-02 05:13:33,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:13:33,313 INFO L93 Difference]: Finished difference Result 11696 states and 16933 transitions. [2023-04-02 05:13:33,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-04-02 05:13:33,313 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.9375) internal successors, (95), 9 states have internal predecessors, (95), 5 states have call successors, (12), 10 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) Word has length 117 [2023-04-02 05:13:33,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:13:33,337 INFO L225 Difference]: With dead ends: 11696 [2023-04-02 05:13:33,337 INFO L226 Difference]: Without dead ends: 6681 [2023-04-02 05:13:33,349 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=344, Invalid=988, Unknown=0, NotChecked=0, Total=1332 [2023-04-02 05:13:33,350 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 2202 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 1063 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2202 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 1265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 1063 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-02 05:13:33,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2202 Valid, 83 Invalid, 1265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 1063 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-02 05:13:33,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6681 states. [2023-04-02 05:13:33,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6681 to 5376. [2023-04-02 05:13:33,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5376 states, 4369 states have (on average 1.5108720531013962) internal successors, (6601), 4497 states have internal predecessors, (6601), 440 states have call successors, (440), 440 states have call predecessors, (440), 566 states have return successors, (856), 438 states have call predecessors, (856), 439 states have call successors, (856) [2023-04-02 05:13:33,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5376 states to 5376 states and 7897 transitions. [2023-04-02 05:13:33,988 INFO L78 Accepts]: Start accepts. Automaton has 5376 states and 7897 transitions. Word has length 117 [2023-04-02 05:13:33,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:13:33,988 INFO L495 AbstractCegarLoop]: Abstraction has 5376 states and 7897 transitions. [2023-04-02 05:13:33,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.9375) internal successors, (95), 9 states have internal predecessors, (95), 5 states have call successors, (12), 10 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2023-04-02 05:13:33,988 INFO L276 IsEmpty]: Start isEmpty. Operand 5376 states and 7897 transitions. [2023-04-02 05:13:33,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-04-02 05:13:33,990 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:13:33,990 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:13:33,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-02 05:13:33,990 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:13:33,992 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:13:33,992 INFO L85 PathProgramCache]: Analyzing trace with hash -347886291, now seen corresponding path program 1 times [2023-04-02 05:13:33,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:13:33,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587978394] [2023-04-02 05:13:33,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:13:33,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:13:34,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:34,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:13:34,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:34,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:13:34,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:34,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 05:13:34,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:34,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-04-02 05:13:34,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:34,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-04-02 05:13:34,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:34,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 05:13:34,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:34,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 05:13:34,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:34,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-04-02 05:13:34,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:34,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-04-02 05:13:34,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:34,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-04-02 05:13:34,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:34,483 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 05:13:34,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:13:34,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587978394] [2023-04-02 05:13:34,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587978394] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:13:34,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:13:34,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-04-02 05:13:34,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818513899] [2023-04-02 05:13:34,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:13:34,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-04-02 05:13:34,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:13:34,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-04-02 05:13:34,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2023-04-02 05:13:34,485 INFO L87 Difference]: Start difference. First operand 5376 states and 7897 transitions. Second operand has 16 states, 16 states have (on average 5.9375) internal successors, (95), 9 states have internal predecessors, (95), 5 states have call successors, (12), 10 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2023-04-02 05:13:37,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:13:37,907 INFO L93 Difference]: Finished difference Result 12790 states and 18557 transitions. [2023-04-02 05:13:37,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-04-02 05:13:37,909 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.9375) internal successors, (95), 9 states have internal predecessors, (95), 5 states have call successors, (12), 10 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) Word has length 117 [2023-04-02 05:13:37,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:13:37,933 INFO L225 Difference]: With dead ends: 12790 [2023-04-02 05:13:37,933 INFO L226 Difference]: Without dead ends: 7613 [2023-04-02 05:13:37,944 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=344, Invalid=988, Unknown=0, NotChecked=0, Total=1332 [2023-04-02 05:13:37,945 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 2081 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 1081 mSolverCounterSat, 187 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2081 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 1268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 187 IncrementalHoareTripleChecker+Valid, 1081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-02 05:13:37,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2081 Valid, 83 Invalid, 1268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [187 Valid, 1081 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-02 05:13:37,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7613 states. [2023-04-02 05:13:38,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7613 to 5398. [2023-04-02 05:13:38,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5398 states, 4386 states have (on average 1.5109439124487005) internal successors, (6627), 4517 states have internal predecessors, (6627), 441 states have call successors, (441), 441 states have call predecessors, (441), 570 states have return successors, (863), 439 states have call predecessors, (863), 440 states have call successors, (863) [2023-04-02 05:13:38,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5398 states to 5398 states and 7931 transitions. [2023-04-02 05:13:38,632 INFO L78 Accepts]: Start accepts. Automaton has 5398 states and 7931 transitions. Word has length 117 [2023-04-02 05:13:38,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:13:38,632 INFO L495 AbstractCegarLoop]: Abstraction has 5398 states and 7931 transitions. [2023-04-02 05:13:38,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.9375) internal successors, (95), 9 states have internal predecessors, (95), 5 states have call successors, (12), 10 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2023-04-02 05:13:38,632 INFO L276 IsEmpty]: Start isEmpty. Operand 5398 states and 7931 transitions. [2023-04-02 05:13:38,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-04-02 05:13:38,634 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:13:38,634 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:13:38,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-04-02 05:13:38,634 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:13:38,635 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:13:38,635 INFO L85 PathProgramCache]: Analyzing trace with hash 554841475, now seen corresponding path program 1 times [2023-04-02 05:13:38,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:13:38,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489067012] [2023-04-02 05:13:38,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:13:38,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:13:38,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:38,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:13:38,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:38,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:13:38,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:38,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 05:13:38,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:38,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-04-02 05:13:38,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:38,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-04-02 05:13:38,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:39,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-04-02 05:13:39,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:39,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 05:13:39,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:39,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-04-02 05:13:39,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:39,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-04-02 05:13:39,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:39,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-04-02 05:13:39,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:39,084 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 05:13:39,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:13:39,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489067012] [2023-04-02 05:13:39,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489067012] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:13:39,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:13:39,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-04-02 05:13:39,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810796666] [2023-04-02 05:13:39,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:13:39,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-04-02 05:13:39,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:13:39,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-04-02 05:13:39,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2023-04-02 05:13:39,086 INFO L87 Difference]: Start difference. First operand 5398 states and 7931 transitions. Second operand has 16 states, 16 states have (on average 5.9375) internal successors, (95), 9 states have internal predecessors, (95), 5 states have call successors, (12), 10 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2023-04-02 05:13:42,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:13:42,548 INFO L93 Difference]: Finished difference Result 14437 states and 21069 transitions. [2023-04-02 05:13:42,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-04-02 05:13:42,549 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.9375) internal successors, (95), 9 states have internal predecessors, (95), 5 states have call successors, (12), 10 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) Word has length 117 [2023-04-02 05:13:42,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:13:42,575 INFO L225 Difference]: With dead ends: 14437 [2023-04-02 05:13:42,575 INFO L226 Difference]: Without dead ends: 9134 [2023-04-02 05:13:42,585 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=344, Invalid=988, Unknown=0, NotChecked=0, Total=1332 [2023-04-02 05:13:42,585 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 2184 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 1065 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2184 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 1271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 1065 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-02 05:13:42,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2184 Valid, 83 Invalid, 1271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 1065 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-02 05:13:42,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9134 states. [2023-04-02 05:13:43,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9134 to 5456. [2023-04-02 05:13:43,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5456 states, 4434 states have (on average 1.5148849797023005) internal successors, (6717), 4567 states have internal predecessors, (6717), 445 states have call successors, (445), 445 states have call predecessors, (445), 576 states have return successors, (880), 443 states have call predecessors, (880), 444 states have call successors, (880) [2023-04-02 05:13:43,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5456 states to 5456 states and 8042 transitions. [2023-04-02 05:13:43,200 INFO L78 Accepts]: Start accepts. Automaton has 5456 states and 8042 transitions. Word has length 117 [2023-04-02 05:13:43,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:13:43,200 INFO L495 AbstractCegarLoop]: Abstraction has 5456 states and 8042 transitions. [2023-04-02 05:13:43,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.9375) internal successors, (95), 9 states have internal predecessors, (95), 5 states have call successors, (12), 10 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2023-04-02 05:13:43,201 INFO L276 IsEmpty]: Start isEmpty. Operand 5456 states and 8042 transitions. [2023-04-02 05:13:43,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-04-02 05:13:43,205 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:13:43,206 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:13:43,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-04-02 05:13:43,206 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:13:43,206 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:13:43,206 INFO L85 PathProgramCache]: Analyzing trace with hash -847698099, now seen corresponding path program 1 times [2023-04-02 05:13:43,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:13:43,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130803037] [2023-04-02 05:13:43,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:13:43,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:13:43,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:43,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:13:43,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:43,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:13:43,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:43,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 05:13:43,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:43,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-04-02 05:13:43,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:43,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-04-02 05:13:43,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:43,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 05:13:43,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:43,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 05:13:43,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:43,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-04-02 05:13:43,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:43,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-04-02 05:13:43,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:43,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-04-02 05:13:43,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:43,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-04-02 05:13:43,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:43,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-04-02 05:13:43,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:43,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-04-02 05:13:43,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:43,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-04-02 05:13:43,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:43,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-04-02 05:13:43,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:43,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-04-02 05:13:43,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:43,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-04-02 05:13:43,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:43,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-04-02 05:13:43,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:43,630 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-04-02 05:13:43,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:13:43,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130803037] [2023-04-02 05:13:43,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130803037] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:13:43,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [22351503] [2023-04-02 05:13:43,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:13:43,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:13:43,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:13:43,633 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 05:13:43,637 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-02 05:13:43,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:43,859 INFO L262 TraceCheckSpWp]: Trace formula consists of 1172 conjuncts, 6 conjunts are in the unsatisfiable core [2023-04-02 05:13:43,874 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:13:44,080 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2023-04-02 05:13:44,080 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 05:13:44,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [22351503] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:13:44,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 05:13:44,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 14 [2023-04-02 05:13:44,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461948466] [2023-04-02 05:13:44,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:13:44,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 05:13:44,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:13:44,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 05:13:44,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-04-02 05:13:44,083 INFO L87 Difference]: Start difference. First operand 5456 states and 8042 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 3 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-04-02 05:13:45,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:13:45,679 INFO L93 Difference]: Finished difference Result 12232 states and 18111 transitions. [2023-04-02 05:13:45,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 05:13:45,680 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 3 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 174 [2023-04-02 05:13:45,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:13:45,705 INFO L225 Difference]: With dead ends: 12232 [2023-04-02 05:13:45,706 INFO L226 Difference]: Without dead ends: 8203 [2023-04-02 05:13:45,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2023-04-02 05:13:45,717 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 314 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 666 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-02 05:13:45,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [321 Valid, 119 Invalid, 683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 666 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-02 05:13:45,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8203 states. [2023-04-02 05:13:46,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8203 to 7479. [2023-04-02 05:13:46,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7479 states, 6062 states have (on average 1.501979544704718) internal successors, (9105), 6192 states have internal predecessors, (9105), 644 states have call successors, (644), 644 states have call predecessors, (644), 772 states have return successors, (1190), 642 states have call predecessors, (1190), 643 states have call successors, (1190) [2023-04-02 05:13:46,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7479 states to 7479 states and 10939 transitions. [2023-04-02 05:13:46,700 INFO L78 Accepts]: Start accepts. Automaton has 7479 states and 10939 transitions. Word has length 174 [2023-04-02 05:13:46,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:13:46,701 INFO L495 AbstractCegarLoop]: Abstraction has 7479 states and 10939 transitions. [2023-04-02 05:13:46,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 3 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-04-02 05:13:46,701 INFO L276 IsEmpty]: Start isEmpty. Operand 7479 states and 10939 transitions. [2023-04-02 05:13:46,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2023-04-02 05:13:46,704 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:13:46,705 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:13:46,723 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-04-02 05:13:46,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-04-02 05:13:46,923 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:13:46,924 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:13:46,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1864784029, now seen corresponding path program 1 times [2023-04-02 05:13:46,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:13:46,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34785562] [2023-04-02 05:13:46,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:13:46,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:13:46,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:47,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:13:47,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:47,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:13:47,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:47,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 05:13:47,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:47,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-04-02 05:13:47,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:47,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-04-02 05:13:47,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:47,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 05:13:47,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:47,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 05:13:47,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:47,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-04-02 05:13:47,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:47,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-04-02 05:13:47,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:47,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-04-02 05:13:47,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:47,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-04-02 05:13:47,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:47,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-04-02 05:13:47,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:47,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-04-02 05:13:47,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:47,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-04-02 05:13:47,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:47,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:13:47,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:47,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-04-02 05:13:47,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:47,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-04-02 05:13:47,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:47,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-04-02 05:13:47,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:47,525 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-04-02 05:13:47,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:13:47,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34785562] [2023-04-02 05:13:47,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34785562] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:13:47,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1542353185] [2023-04-02 05:13:47,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:13:47,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:13:47,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:13:47,527 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 05:13:47,530 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-04-02 05:13:47,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:47,746 INFO L262 TraceCheckSpWp]: Trace formula consists of 1171 conjuncts, 10 conjunts are in the unsatisfiable core [2023-04-02 05:13:47,752 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:13:48,296 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:13:48,297 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 05:13:48,739 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 15 proven. 8 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-04-02 05:13:48,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1542353185] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 05:13:48,740 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 05:13:48,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 10, 11] total 29 [2023-04-02 05:13:48,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227995485] [2023-04-02 05:13:48,740 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 05:13:48,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-04-02 05:13:48,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:13:48,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-04-02 05:13:48,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=708, Unknown=0, NotChecked=0, Total=812 [2023-04-02 05:13:48,743 INFO L87 Difference]: Start difference. First operand 7479 states and 10939 transitions. Second operand has 29 states, 29 states have (on average 10.413793103448276) internal successors, (302), 22 states have internal predecessors, (302), 9 states have call successors, (50), 17 states have call predecessors, (50), 13 states have return successors, (37), 8 states have call predecessors, (37), 9 states have call successors, (37) [2023-04-02 05:13:54,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:13:54,606 INFO L93 Difference]: Finished difference Result 20241 states and 29049 transitions. [2023-04-02 05:13:54,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-04-02 05:13:54,606 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 10.413793103448276) internal successors, (302), 22 states have internal predecessors, (302), 9 states have call successors, (50), 17 states have call predecessors, (50), 13 states have return successors, (37), 8 states have call predecessors, (37), 9 states have call successors, (37) Word has length 175 [2023-04-02 05:13:54,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:13:54,655 INFO L225 Difference]: With dead ends: 20241 [2023-04-02 05:13:54,655 INFO L226 Difference]: Without dead ends: 13997 [2023-04-02 05:13:54,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 442 GetRequests, 382 SyntacticMatches, 6 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 568 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=762, Invalid=2318, Unknown=0, NotChecked=0, Total=3080 [2023-04-02 05:13:54,673 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 2568 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 1627 mSolverCounterSat, 189 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2568 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 1816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 189 IncrementalHoareTripleChecker+Valid, 1627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-04-02 05:13:54,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2568 Valid, 110 Invalid, 1816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [189 Valid, 1627 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-04-02 05:13:54,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13997 states. [2023-04-02 05:13:56,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13997 to 9661. [2023-04-02 05:13:56,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9661 states, 7649 states have (on average 1.4318211530919074) internal successors, (10952), 7866 states have internal predecessors, (10952), 898 states have call successors, (898), 898 states have call predecessors, (898), 1113 states have return successors, (1688), 896 states have call predecessors, (1688), 897 states have call successors, (1688) [2023-04-02 05:13:56,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9661 states to 9661 states and 13538 transitions. [2023-04-02 05:13:56,082 INFO L78 Accepts]: Start accepts. Automaton has 9661 states and 13538 transitions. Word has length 175 [2023-04-02 05:13:56,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:13:56,082 INFO L495 AbstractCegarLoop]: Abstraction has 9661 states and 13538 transitions. [2023-04-02 05:13:56,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 10.413793103448276) internal successors, (302), 22 states have internal predecessors, (302), 9 states have call successors, (50), 17 states have call predecessors, (50), 13 states have return successors, (37), 8 states have call predecessors, (37), 9 states have call successors, (37) [2023-04-02 05:13:56,083 INFO L276 IsEmpty]: Start isEmpty. Operand 9661 states and 13538 transitions. [2023-04-02 05:13:56,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2023-04-02 05:13:56,087 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:13:56,087 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:13:56,102 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-04-02 05:13:56,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-04-02 05:13:56,303 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:13:56,303 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:13:56,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1148479057, now seen corresponding path program 1 times [2023-04-02 05:13:56,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:13:56,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545092883] [2023-04-02 05:13:56,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:13:56,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:13:56,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:57,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:13:57,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:57,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:13:57,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:57,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 05:13:57,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:57,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-04-02 05:13:57,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:57,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-04-02 05:13:57,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:57,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 05:13:57,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:57,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 05:13:57,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:57,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-04-02 05:13:57,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:57,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-04-02 05:13:57,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:57,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-04-02 05:13:57,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:57,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-04-02 05:13:57,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:57,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-04-02 05:13:57,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:57,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-04-02 05:13:57,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:57,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-04-02 05:13:57,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:57,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:13:57,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:57,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-04-02 05:13:57,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:57,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-04-02 05:13:57,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:57,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-04-02 05:13:57,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:57,501 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-04-02 05:13:57,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:13:57,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545092883] [2023-04-02 05:13:57,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545092883] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:13:57,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:13:57,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2023-04-02 05:13:57,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388421060] [2023-04-02 05:13:57,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:13:57,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-04-02 05:13:57,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:13:57,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-04-02 05:13:57,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2023-04-02 05:13:57,506 INFO L87 Difference]: Start difference. First operand 9661 states and 13538 transitions. Second operand has 22 states, 22 states have (on average 5.045454545454546) internal successors, (111), 15 states have internal predecessors, (111), 4 states have call successors, (17), 9 states have call predecessors, (17), 9 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) [2023-04-02 05:14:20,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:14:20,184 INFO L93 Difference]: Finished difference Result 23764 states and 33490 transitions. [2023-04-02 05:14:20,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 232 states. [2023-04-02 05:14:20,185 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.045454545454546) internal successors, (111), 15 states have internal predecessors, (111), 4 states have call successors, (17), 9 states have call predecessors, (17), 9 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) Word has length 175 [2023-04-02 05:14:20,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:14:20,238 INFO L225 Difference]: With dead ends: 23764 [2023-04-02 05:14:20,238 INFO L226 Difference]: Without dead ends: 19419 [2023-04-02 05:14:20,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 245 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24918 ImplicationChecksByTransitivity, 14.4s TimeCoverageRelationStatistics Valid=7221, Invalid=53541, Unknown=0, NotChecked=0, Total=60762 [2023-04-02 05:14:20,259 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 6326 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 8571 mSolverCounterSat, 551 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6350 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 9122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 551 IncrementalHoareTripleChecker+Valid, 8571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2023-04-02 05:14:20,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6350 Valid, 508 Invalid, 9122 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [551 Valid, 8571 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2023-04-02 05:14:20,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19419 states. [2023-04-02 05:14:22,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19419 to 16998. [2023-04-02 05:14:22,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16998 states, 13494 states have (on average 1.441233140655106) internal successors, (19448), 13825 states have internal predecessors, (19448), 1587 states have call successors, (1587), 1587 states have call predecessors, (1587), 1916 states have return successors, (2981), 1585 states have call predecessors, (2981), 1586 states have call successors, (2981) [2023-04-02 05:14:22,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16998 states to 16998 states and 24016 transitions. [2023-04-02 05:14:22,669 INFO L78 Accepts]: Start accepts. Automaton has 16998 states and 24016 transitions. Word has length 175 [2023-04-02 05:14:22,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:14:22,670 INFO L495 AbstractCegarLoop]: Abstraction has 16998 states and 24016 transitions. [2023-04-02 05:14:22,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.045454545454546) internal successors, (111), 15 states have internal predecessors, (111), 4 states have call successors, (17), 9 states have call predecessors, (17), 9 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) [2023-04-02 05:14:22,670 INFO L276 IsEmpty]: Start isEmpty. Operand 16998 states and 24016 transitions. [2023-04-02 05:14:22,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2023-04-02 05:14:22,674 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:14:22,675 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:14:22,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-04-02 05:14:22,675 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:14:22,675 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:14:22,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1282147569, now seen corresponding path program 1 times [2023-04-02 05:14:22,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:14:22,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965315761] [2023-04-02 05:14:22,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:14:22,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:14:22,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:23,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:14:23,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:23,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:14:23,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:23,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 05:14:23,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:23,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-04-02 05:14:23,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:23,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-04-02 05:14:23,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:23,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 05:14:23,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:23,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 05:14:23,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:23,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-04-02 05:14:23,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:23,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-04-02 05:14:23,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:23,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-04-02 05:14:23,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:23,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-04-02 05:14:23,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:23,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-04-02 05:14:23,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:23,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-04-02 05:14:23,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:23,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-04-02 05:14:23,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:23,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-04-02 05:14:23,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:23,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-04-02 05:14:23,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:23,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-04-02 05:14:23,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:23,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-04-02 05:14:23,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:23,670 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-04-02 05:14:23,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:14:23,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965315761] [2023-04-02 05:14:23,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965315761] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:14:23,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:14:23,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2023-04-02 05:14:23,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711479741] [2023-04-02 05:14:23,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:14:23,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-04-02 05:14:23,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:14:23,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-04-02 05:14:23,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2023-04-02 05:14:23,672 INFO L87 Difference]: Start difference. First operand 16998 states and 24016 transitions. Second operand has 22 states, 22 states have (on average 5.045454545454546) internal successors, (111), 15 states have internal predecessors, (111), 4 states have call successors, (14), 9 states have call predecessors, (14), 9 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) [2023-04-02 05:14:48,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:14:48,094 INFO L93 Difference]: Finished difference Result 53379 states and 75392 transitions. [2023-04-02 05:14:48,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 226 states. [2023-04-02 05:14:48,095 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.045454545454546) internal successors, (111), 15 states have internal predecessors, (111), 4 states have call successors, (14), 9 states have call predecessors, (14), 9 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) Word has length 175 [2023-04-02 05:14:48,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:14:48,209 INFO L225 Difference]: With dead ends: 53379 [2023-04-02 05:14:48,209 INFO L226 Difference]: Without dead ends: 37245 [2023-04-02 05:14:48,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 239 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23817 ImplicationChecksByTransitivity, 13.7s TimeCoverageRelationStatistics Valid=6949, Invalid=50891, Unknown=0, NotChecked=0, Total=57840 [2023-04-02 05:14:48,250 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 4585 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 9751 mSolverCounterSat, 405 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4608 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 10156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 405 IncrementalHoareTripleChecker+Valid, 9751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2023-04-02 05:14:48,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4608 Valid, 621 Invalid, 10156 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [405 Valid, 9751 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2023-04-02 05:14:48,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37245 states. [2023-04-02 05:14:53,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37245 to 33378. [2023-04-02 05:14:53,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33378 states, 26593 states have (on average 1.4536156131312752) internal successors, (38656), 27247 states have internal predecessors, (38656), 3066 states have call successors, (3066), 3066 states have call predecessors, (3066), 3718 states have return successors, (5814), 3064 states have call predecessors, (5814), 3065 states have call successors, (5814) [2023-04-02 05:14:53,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33378 states to 33378 states and 47536 transitions. [2023-04-02 05:14:53,150 INFO L78 Accepts]: Start accepts. Automaton has 33378 states and 47536 transitions. Word has length 175 [2023-04-02 05:14:53,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:14:53,152 INFO L495 AbstractCegarLoop]: Abstraction has 33378 states and 47536 transitions. [2023-04-02 05:14:53,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.045454545454546) internal successors, (111), 15 states have internal predecessors, (111), 4 states have call successors, (14), 9 states have call predecessors, (14), 9 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) [2023-04-02 05:14:53,152 INFO L276 IsEmpty]: Start isEmpty. Operand 33378 states and 47536 transitions. [2023-04-02 05:14:53,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2023-04-02 05:14:53,159 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:14:53,159 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:14:53,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-04-02 05:14:53,159 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:14:53,159 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:14:53,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1740666082, now seen corresponding path program 1 times [2023-04-02 05:14:53,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:14:53,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380446795] [2023-04-02 05:14:53,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:14:53,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:14:53,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:53,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:14:53,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:53,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:14:53,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:53,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 05:14:53,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:53,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-04-02 05:14:53,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:53,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-04-02 05:14:53,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:53,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 05:14:53,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:53,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 05:14:53,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:54,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-04-02 05:14:54,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:54,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-04-02 05:14:54,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:54,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-04-02 05:14:54,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:54,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-04-02 05:14:54,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:54,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-04-02 05:14:54,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:54,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-04-02 05:14:54,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:54,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-04-02 05:14:54,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:54,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-04-02 05:14:54,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:54,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-04-02 05:14:54,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:54,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-04-02 05:14:54,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:54,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-04-02 05:14:54,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:14:54,148 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-04-02 05:14:54,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:14:54,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380446795] [2023-04-02 05:14:54,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380446795] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:14:54,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:14:54,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2023-04-02 05:14:54,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632758485] [2023-04-02 05:14:54,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:14:54,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-04-02 05:14:54,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:14:54,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-04-02 05:14:54,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2023-04-02 05:14:54,151 INFO L87 Difference]: Start difference. First operand 33378 states and 47536 transitions. Second operand has 22 states, 22 states have (on average 5.090909090909091) internal successors, (112), 15 states have internal predecessors, (112), 4 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) [2023-04-02 05:15:21,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:15:21,521 INFO L93 Difference]: Finished difference Result 94657 states and 134507 transitions. [2023-04-02 05:15:21,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 219 states. [2023-04-02 05:15:21,522 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.090909090909091) internal successors, (112), 15 states have internal predecessors, (112), 4 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) Word has length 175 [2023-04-02 05:15:21,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:15:21,771 INFO L225 Difference]: With dead ends: 94657 [2023-04-02 05:15:21,771 INFO L226 Difference]: Without dead ends: 66031 [2023-04-02 05:15:21,833 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 232 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22244 ImplicationChecksByTransitivity, 13.4s TimeCoverageRelationStatistics Valid=6639, Invalid=47883, Unknown=0, NotChecked=0, Total=54522 [2023-04-02 05:15:21,834 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 5514 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 8840 mSolverCounterSat, 502 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5538 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 9342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 502 IncrementalHoareTripleChecker+Valid, 8840 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2023-04-02 05:15:21,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5538 Valid, 578 Invalid, 9342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [502 Valid, 8840 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2023-04-02 05:15:21,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66031 states. [2023-04-02 05:15:29,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66031 to 57054. [2023-04-02 05:15:29,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57054 states, 45505 states have (on average 1.4585649928579276) internal successors, (66372), 46699 states have internal predecessors, (66372), 5178 states have call successors, (5178), 5178 states have call predecessors, (5178), 6370 states have return successors, (9874), 5176 states have call predecessors, (9874), 5177 states have call successors, (9874) [2023-04-02 05:15:29,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57054 states to 57054 states and 81424 transitions. [2023-04-02 05:15:29,661 INFO L78 Accepts]: Start accepts. Automaton has 57054 states and 81424 transitions. Word has length 175 [2023-04-02 05:15:29,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:15:29,661 INFO L495 AbstractCegarLoop]: Abstraction has 57054 states and 81424 transitions. [2023-04-02 05:15:29,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.090909090909091) internal successors, (112), 15 states have internal predecessors, (112), 4 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) [2023-04-02 05:15:29,662 INFO L276 IsEmpty]: Start isEmpty. Operand 57054 states and 81424 transitions. [2023-04-02 05:15:29,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2023-04-02 05:15:29,667 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:15:29,668 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:15:29,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-04-02 05:15:29,668 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:15:29,668 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:15:29,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1272611350, now seen corresponding path program 1 times [2023-04-02 05:15:29,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:15:29,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603184415] [2023-04-02 05:15:29,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:15:29,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:15:29,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:29,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:15:29,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:29,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:15:29,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:29,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 05:15:29,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:29,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-04-02 05:15:29,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:30,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-04-02 05:15:30,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:30,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 05:15:30,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:30,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 05:15:30,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:30,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-04-02 05:15:30,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:30,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-04-02 05:15:30,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:30,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-04-02 05:15:30,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:30,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-04-02 05:15:30,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:30,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-04-02 05:15:30,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:30,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-04-02 05:15:30,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:30,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-04-02 05:15:30,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:30,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-04-02 05:15:30,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:30,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-04-02 05:15:30,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:30,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-04-02 05:15:30,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:30,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-04-02 05:15:30,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:30,177 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 11 proven. 10 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-04-02 05:15:30,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:15:30,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603184415] [2023-04-02 05:15:30,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603184415] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:15:30,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1246975543] [2023-04-02 05:15:30,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:15:30,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:15:30,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:15:30,185 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 05:15:30,188 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-04-02 05:15:30,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:30,387 INFO L262 TraceCheckSpWp]: Trace formula consists of 1173 conjuncts, 10 conjunts are in the unsatisfiable core [2023-04-02 05:15:30,394 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:15:30,850 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 25 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:15:30,850 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 05:15:31,173 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 12 proven. 11 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-04-02 05:15:31,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1246975543] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 05:15:31,174 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 05:15:31,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 10, 11] total 29 [2023-04-02 05:15:31,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963771750] [2023-04-02 05:15:31,174 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 05:15:31,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-04-02 05:15:31,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:15:31,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-04-02 05:15:31,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=708, Unknown=0, NotChecked=0, Total=812 [2023-04-02 05:15:31,176 INFO L87 Difference]: Start difference. First operand 57054 states and 81424 transitions. Second operand has 29 states, 29 states have (on average 10.10344827586207) internal successors, (293), 22 states have internal predecessors, (293), 9 states have call successors, (50), 17 states have call predecessors, (50), 13 states have return successors, (37), 8 states have call predecessors, (37), 9 states have call successors, (37) [2023-04-02 05:15:57,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:15:57,097 INFO L93 Difference]: Finished difference Result 222115 states and 314385 transitions. [2023-04-02 05:15:57,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-04-02 05:15:57,097 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 10.10344827586207) internal successors, (293), 22 states have internal predecessors, (293), 9 states have call successors, (50), 17 states have call predecessors, (50), 13 states have return successors, (37), 8 states have call predecessors, (37), 9 states have call successors, (37) Word has length 175 [2023-04-02 05:15:57,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:15:57,947 INFO L225 Difference]: With dead ends: 222115 [2023-04-02 05:15:57,947 INFO L226 Difference]: Without dead ends: 165197 [2023-04-02 05:15:58,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 464 GetRequests, 393 SyntacticMatches, 6 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 933 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=1078, Invalid=3344, Unknown=0, NotChecked=0, Total=4422 [2023-04-02 05:15:58,040 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 3711 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 1513 mSolverCounterSat, 264 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3715 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 1777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 264 IncrementalHoareTripleChecker+Valid, 1513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-04-02 05:15:58,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3715 Valid, 96 Invalid, 1777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [264 Valid, 1513 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-04-02 05:15:58,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165197 states. [2023-04-02 05:16:15,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165197 to 124242. [2023-04-02 05:16:15,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124242 states, 97755 states have (on average 1.4380338601606055) internal successors, (140575), 102093 states have internal predecessors, (140575), 11075 states have call successors, (11075), 11075 states have call predecessors, (11075), 15411 states have return successors, (23080), 11073 states have call predecessors, (23080), 11074 states have call successors, (23080) [2023-04-02 05:16:15,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124242 states to 124242 states and 174730 transitions. [2023-04-02 05:16:15,905 INFO L78 Accepts]: Start accepts. Automaton has 124242 states and 174730 transitions. Word has length 175 [2023-04-02 05:16:15,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:16:15,906 INFO L495 AbstractCegarLoop]: Abstraction has 124242 states and 174730 transitions. [2023-04-02 05:16:15,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 10.10344827586207) internal successors, (293), 22 states have internal predecessors, (293), 9 states have call successors, (50), 17 states have call predecessors, (50), 13 states have return successors, (37), 8 states have call predecessors, (37), 9 states have call successors, (37) [2023-04-02 05:16:15,906 INFO L276 IsEmpty]: Start isEmpty. Operand 124242 states and 174730 transitions. [2023-04-02 05:16:15,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2023-04-02 05:16:15,915 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:16:15,916 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:16:15,923 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-04-02 05:16:16,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:16:16,124 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:16:16,124 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:16:16,124 INFO L85 PathProgramCache]: Analyzing trace with hash -2119628180, now seen corresponding path program 1 times [2023-04-02 05:16:16,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:16:16,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793310470] [2023-04-02 05:16:16,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:16:16,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:16:16,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat