/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-pthread/cs_stateful-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 02:04:59,296 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 02:04:59,298 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 02:04:59,342 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 02:04:59,342 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 02:04:59,345 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 02:04:59,350 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 02:04:59,353 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 02:04:59,354 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 02:04:59,358 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 02:04:59,360 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 02:04:59,361 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 02:04:59,362 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 02:04:59,364 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 02:04:59,365 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 02:04:59,366 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 02:04:59,367 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 02:04:59,367 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 02:04:59,369 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 02:04:59,373 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 02:04:59,374 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 02:04:59,375 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 02:04:59,376 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 02:04:59,377 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 02:04:59,385 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 02:04:59,385 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 02:04:59,385 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 02:04:59,387 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 02:04:59,387 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 02:04:59,388 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 02:04:59,388 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 02:04:59,388 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 02:04:59,390 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 02:04:59,390 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 02:04:59,391 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 02:04:59,391 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 02:04:59,391 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 02:04:59,391 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 02:04:59,392 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 02:04:59,392 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 02:04:59,393 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 02:04:59,394 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 [2023-03-31 02:04:59,422 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 02:04:59,423 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 02:04:59,423 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 02:04:59,423 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 02:04:59,424 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 02:04:59,425 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 02:04:59,425 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-03-31 02:04:59,425 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-03-31 02:04:59,425 INFO L138 SettingsManager]: * Use SBE=true [2023-03-31 02:04:59,425 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 02:04:59,426 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 02:04:59,426 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 02:04:59,426 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 02:04:59,427 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 02:04:59,427 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 02:04:59,427 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 02:04:59,427 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 02:04:59,427 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 02:04:59,427 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 02:04:59,427 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 02:04:59,427 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 02:04:59,428 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 02:04:59,428 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-03-31 02:04:59,428 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 02:04:59,428 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 02:04:59,428 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 02:04:59,428 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 02:04:59,428 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 02:04:59,428 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-03-31 02:04:59,429 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 02:04:59,429 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-03-31 02:04:59,429 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 02:04:59,429 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-03-31 02:04:59,429 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-03-31 02:04:59,429 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-03-31 02:04:59,429 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-03-31 02:04:59,663 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 02:04:59,688 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 02:04:59,690 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 02:04:59,691 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 02:04:59,691 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 02:04:59,692 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-pthread/cs_stateful-1.i [2023-03-31 02:05:00,889 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 02:05:01,159 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 02:05:01,159 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-pthread/cs_stateful-1.i [2023-03-31 02:05:01,183 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cba4a348d/78328e2d80cd4aa88cc63908772468d5/FLAG6858d3dd9 [2023-03-31 02:05:01,198 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cba4a348d/78328e2d80cd4aa88cc63908772468d5 [2023-03-31 02:05:01,202 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 02:05:01,203 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 02:05:01,206 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 02:05:01,206 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 02:05:01,209 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 02:05:01,210 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 02:05:01" (1/1) ... [2023-03-31 02:05:01,211 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4199c794 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 02:05:01, skipping insertion in model container [2023-03-31 02:05:01,211 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 02:05:01" (1/1) ... [2023-03-31 02:05:01,219 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 02:05:01,277 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 02:05:01,528 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-pthread/cs_stateful-1.i[23400,23413] [2023-03-31 02:05:01,675 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 02:05:01,695 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 02:05:01,725 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-pthread/cs_stateful-1.i[23400,23413] [2023-03-31 02:05:01,766 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 02:05:01,798 INFO L208 MainTranslator]: Completed translation [2023-03-31 02:05:01,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 02:05:01 WrapperNode [2023-03-31 02:05:01,798 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 02:05:01,799 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 02:05:01,799 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 02:05:01,799 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 02:05:01,809 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 02:05:01" (1/1) ... [2023-03-31 02:05:01,809 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 02:05:01" (1/1) ... [2023-03-31 02:05:01,832 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 02:05:01" (1/1) ... [2023-03-31 02:05:01,832 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 02:05:01" (1/1) ... [2023-03-31 02:05:01,877 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 02:05:01" (1/1) ... [2023-03-31 02:05:01,883 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 02:05:01" (1/1) ... [2023-03-31 02:05:01,888 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 02:05:01" (1/1) ... [2023-03-31 02:05:01,910 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 02:05:01" (1/1) ... [2023-03-31 02:05:01,918 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 02:05:01,919 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 02:05:01,920 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 02:05:01,920 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 02:05:01,920 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 02:05:01" (1/1) ... [2023-03-31 02:05:01,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 02:05:01,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 02:05:01,970 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) [2023-03-31 02:05:01,996 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 [2023-03-31 02:05:02,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 02:05:02,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 02:05:02,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-03-31 02:05:02,012 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 02:05:02,012 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2023-03-31 02:05:02,012 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2023-03-31 02:05:02,012 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2023-03-31 02:05:02,012 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2023-03-31 02:05:02,012 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2023-03-31 02:05:02,012 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-03-31 02:05:02,013 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2023-03-31 02:05:02,013 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_init [2023-03-31 02:05:02,013 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_destroy [2023-03-31 02:05:02,013 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_lock [2023-03-31 02:05:02,013 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_unlock [2023-03-31 02:05:02,013 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_cond_init [2023-03-31 02:05:02,013 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_cond_signal [2023-03-31 02:05:02,013 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_cond_broadcast [2023-03-31 02:05:02,013 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_cond_wait [2023-03-31 02:05:02,013 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_assert [2023-03-31 02:05:02,013 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_assume [2023-03-31 02:05:02,014 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2023-03-31 02:05:02,014 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2023-03-31 02:05:02,014 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-03-31 02:05:02,014 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-03-31 02:05:02,014 INFO L138 BoogieDeclarations]: Found implementation of procedure main_thread [2023-03-31 02:05:02,014 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 02:05:02,014 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 02:05:02,014 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 02:05:02,014 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-03-31 02:05:02,014 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-03-31 02:05:02,015 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 02:05:02,015 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 02:05:02,015 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2023-03-31 02:05:02,015 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2023-03-31 02:05:02,016 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2023-03-31 02:05:02,016 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2023-03-31 02:05:02,016 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2023-03-31 02:05:02,016 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2023-03-31 02:05:02,016 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2023-03-31 02:05:02,016 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2023-03-31 02:05:02,016 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2023-03-31 02:05:02,016 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2023-03-31 02:05:02,016 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2023-03-31 02:05:02,016 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2023-03-31 02:05:02,017 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2023-03-31 02:05:02,017 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2023-03-31 02:05:02,017 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2023-03-31 02:05:02,017 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2023-03-31 02:05:02,017 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2023-03-31 02:05:02,017 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2023-03-31 02:05:02,018 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2023-03-31 02:05:02,018 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2023-03-31 02:05:02,018 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2023-03-31 02:05:02,018 INFO L130 BoogieDeclarations]: Found specification of procedure select [2023-03-31 02:05:02,019 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2023-03-31 02:05:02,019 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2023-03-31 02:05:02,019 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2023-03-31 02:05:02,019 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2023-03-31 02:05:02,019 INFO L130 BoogieDeclarations]: Found specification of procedure random [2023-03-31 02:05:02,020 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2023-03-31 02:05:02,020 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2023-03-31 02:05:02,020 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2023-03-31 02:05:02,020 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2023-03-31 02:05:02,020 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2023-03-31 02:05:02,020 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2023-03-31 02:05:02,021 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2023-03-31 02:05:02,021 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2023-03-31 02:05:02,021 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2023-03-31 02:05:02,021 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2023-03-31 02:05:02,021 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2023-03-31 02:05:02,021 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2023-03-31 02:05:02,021 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2023-03-31 02:05:02,021 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2023-03-31 02:05:02,021 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2023-03-31 02:05:02,021 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2023-03-31 02:05:02,022 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2023-03-31 02:05:02,022 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2023-03-31 02:05:02,022 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2023-03-31 02:05:02,022 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2023-03-31 02:05:02,022 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2023-03-31 02:05:02,022 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2023-03-31 02:05:02,023 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2023-03-31 02:05:02,023 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2023-03-31 02:05:02,023 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2023-03-31 02:05:02,023 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2023-03-31 02:05:02,023 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2023-03-31 02:05:02,023 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2023-03-31 02:05:02,023 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-03-31 02:05:02,023 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2023-03-31 02:05:02,024 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2023-03-31 02:05:02,024 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-03-31 02:05:02,024 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2023-03-31 02:05:02,024 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2023-03-31 02:05:02,024 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2023-03-31 02:05:02,024 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2023-03-31 02:05:02,024 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2023-03-31 02:05:02,024 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2023-03-31 02:05:02,024 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2023-03-31 02:05:02,024 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-03-31 02:05:02,024 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2023-03-31 02:05:02,024 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2023-03-31 02:05:02,025 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2023-03-31 02:05:02,025 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2023-03-31 02:05:02,025 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2023-03-31 02:05:02,025 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2023-03-31 02:05:02,025 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2023-03-31 02:05:02,025 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2023-03-31 02:05:02,025 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2023-03-31 02:05:02,025 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2023-03-31 02:05:02,025 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2023-03-31 02:05:02,025 INFO L130 BoogieDeclarations]: Found specification of procedure system [2023-03-31 02:05:02,026 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2023-03-31 02:05:02,026 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2023-03-31 02:05:02,026 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2023-03-31 02:05:02,026 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2023-03-31 02:05:02,026 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2023-03-31 02:05:02,026 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2023-03-31 02:05:02,026 INFO L130 BoogieDeclarations]: Found specification of procedure div [2023-03-31 02:05:02,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2023-03-31 02:05:02,027 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2023-03-31 02:05:02,027 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2023-03-31 02:05:02,027 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2023-03-31 02:05:02,027 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2023-03-31 02:05:02,028 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2023-03-31 02:05:02,028 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2023-03-31 02:05:02,028 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2023-03-31 02:05:02,029 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2023-03-31 02:05:02,029 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2023-03-31 02:05:02,032 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2023-03-31 02:05:02,037 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2023-03-31 02:05:02,038 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2023-03-31 02:05:02,038 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2023-03-31 02:05:02,038 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2023-03-31 02:05:02,038 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2023-03-31 02:05:02,038 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2023-03-31 02:05:02,038 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2023-03-31 02:05:02,038 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2023-03-31 02:05:02,038 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2023-03-31 02:05:02,038 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-03-31 02:05:02,038 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-31 02:05:02,038 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2023-03-31 02:05:02,039 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2023-03-31 02:05:02,039 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2023-03-31 02:05:02,039 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_init [2023-03-31 02:05:02,039 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_destroy [2023-03-31 02:05:02,039 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 02:05:02,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 02:05:02,039 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_lock [2023-03-31 02:05:02,039 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_unlock [2023-03-31 02:05:02,039 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_cond_init [2023-03-31 02:05:02,039 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_cond_signal [2023-03-31 02:05:02,039 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-03-31 02:05:02,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-03-31 02:05:02,039 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_cond_broadcast [2023-03-31 02:05:02,040 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_cond_wait [2023-03-31 02:05:02,040 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_assert [2023-03-31 02:05:02,040 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_assume [2023-03-31 02:05:02,040 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2023-03-31 02:05:02,040 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2023-03-31 02:05:02,040 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-03-31 02:05:02,040 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-03-31 02:05:02,040 INFO L130 BoogieDeclarations]: Found specification of procedure main_thread [2023-03-31 02:05:02,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-03-31 02:05:02,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 02:05:02,040 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 02:05:02,040 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-03-31 02:05:02,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 02:05:02,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 02:05:02,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-03-31 02:05:02,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 02:05:02,374 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 02:05:02,377 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 02:05:02,541 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint L746: SUMMARY for call __CS_cs(); srcloc: null [2023-03-31 02:05:02,542 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint L746-1: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);#res.base, #res.offset := 0, 0;call ULTIMATE.dealloc(~#t1~0.base, ~#t1~0.offset);havoc ~#t1~0.base, ~#t1~0.offset;call ULTIMATE.dealloc(~#t2~0.base, ~#t2~0.offset);havoc ~#t2~0.base, ~#t2~0.offset; [2023-03-31 02:05:02,542 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint L746-1: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-03-31 02:05:02,542 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##29: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-03-31 02:05:02,542 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##28: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);#res.base, #res.offset := 0, 0;call ULTIMATE.dealloc(~#t1~0.base, ~#t1~0.offset);havoc ~#t1~0.base, ~#t1~0.offset;call ULTIMATE.dealloc(~#t2~0.base, ~#t2~0.offset);havoc ~#t2~0.base, ~#t2~0.offset; [2023-03-31 02:05:02,542 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##27: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-03-31 02:05:02,542 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##26: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);#res.base, #res.offset := 0, 0;call ULTIMATE.dealloc(~#t1~0.base, ~#t1~0.offset);havoc ~#t1~0.base, ~#t1~0.offset;call ULTIMATE.dealloc(~#t2~0.base, ~#t2~0.offset);havoc ~#t2~0.base, ~#t2~0.offset; [2023-03-31 02:05:04,701 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 02:05:04,709 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 02:05:04,710 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-03-31 02:05:04,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 02:05:04 BoogieIcfgContainer [2023-03-31 02:05:04,712 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 02:05:04,714 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 02:05:04,714 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 02:05:04,722 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 02:05:04,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 02:05:01" (1/3) ... [2023-03-31 02:05:04,723 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51f5146c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 02:05:04, skipping insertion in model container [2023-03-31 02:05:04,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 02:05:01" (2/3) ... [2023-03-31 02:05:04,723 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51f5146c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 02:05:04, skipping insertion in model container [2023-03-31 02:05:04,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 02:05:04" (3/3) ... [2023-03-31 02:05:04,725 INFO L112 eAbstractionObserver]: Analyzing ICFG cs_stateful-1.i [2023-03-31 02:05:04,741 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 02:05:04,741 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 02:05:04,804 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 02:05:04,810 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;@4164a557, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-03-31 02:05:04,811 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 02:05:04,816 INFO L276 IsEmpty]: Start isEmpty. Operand has 190 states, 127 states have (on average 1.4724409448818898) internal successors, (187), 128 states have internal predecessors, (187), 48 states have call successors, (48), 13 states have call predecessors, (48), 13 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-03-31 02:05:04,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-03-31 02:05:04,830 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 02:05:04,830 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 02:05:04,831 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 02:05:04,837 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 02:05:04,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1979930045, now seen corresponding path program 1 times [2023-03-31 02:05:04,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 02:05:04,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735990764] [2023-03-31 02:05:04,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 02:05:04,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 02:05:05,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:05:05,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 02:05:05,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:05:05,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 02:05:05,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 02:05:05,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735990764] [2023-03-31 02:05:05,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735990764] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 02:05:05,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 02:05:05,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-03-31 02:05:05,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609383958] [2023-03-31 02:05:05,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 02:05:05,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-03-31 02:05:05,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 02:05:05,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-03-31 02:05:05,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-03-31 02:05:05,568 INFO L87 Difference]: Start difference. First operand has 190 states, 127 states have (on average 1.4724409448818898) internal successors, (187), 128 states have internal predecessors, (187), 48 states have call successors, (48), 13 states have call predecessors, (48), 13 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 02:05:07,641 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-03-31 02:05:09,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 02:05:09,564 INFO L93 Difference]: Finished difference Result 382 states and 610 transitions. [2023-03-31 02:05:09,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-03-31 02:05:09,566 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 37 [2023-03-31 02:05:09,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 02:05:09,575 INFO L225 Difference]: With dead ends: 382 [2023-03-31 02:05:09,576 INFO L226 Difference]: Without dead ends: 191 [2023-03-31 02:05:09,580 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-03-31 02:05:09,583 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 44 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 47 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-03-31 02:05:09,584 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 226 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 244 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2023-03-31 02:05:09,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2023-03-31 02:05:09,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 183. [2023-03-31 02:05:09,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 123 states have (on average 1.3577235772357723) internal successors, (167), 123 states have internal predecessors, (167), 48 states have call successors, (48), 13 states have call predecessors, (48), 11 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-03-31 02:05:09,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 261 transitions. [2023-03-31 02:05:09,651 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 261 transitions. Word has length 37 [2023-03-31 02:05:09,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 02:05:09,652 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 261 transitions. [2023-03-31 02:05:09,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 02:05:09,652 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 261 transitions. [2023-03-31 02:05:09,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-03-31 02:05:09,654 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 02:05:09,654 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] [2023-03-31 02:05:09,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-31 02:05:09,655 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 02:05:09,655 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 02:05:09,655 INFO L85 PathProgramCache]: Analyzing trace with hash -180811967, now seen corresponding path program 1 times [2023-03-31 02:05:09,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 02:05:09,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663045102] [2023-03-31 02:05:09,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 02:05:09,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 02:05:09,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:05:10,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 02:05:10,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:05:10,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 02:05:10,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 02:05:10,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663045102] [2023-03-31 02:05:10,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663045102] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 02:05:10,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 02:05:10,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-03-31 02:05:10,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562033034] [2023-03-31 02:05:10,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 02:05:10,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-03-31 02:05:10,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 02:05:10,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-03-31 02:05:10,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-03-31 02:05:10,211 INFO L87 Difference]: Start difference. First operand 183 states and 261 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 02:05:12,381 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-03-31 02:05:14,394 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-03-31 02:05:16,400 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-03-31 02:05:17,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 02:05:17,287 INFO L93 Difference]: Finished difference Result 368 states and 532 transitions. [2023-03-31 02:05:17,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-03-31 02:05:17,288 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 37 [2023-03-31 02:05:17,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 02:05:17,293 INFO L225 Difference]: With dead ends: 368 [2023-03-31 02:05:17,293 INFO L226 Difference]: Without dead ends: 196 [2023-03-31 02:05:17,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-03-31 02:05:17,296 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 53 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 47 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2023-03-31 02:05:17,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 416 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 313 Invalid, 3 Unknown, 0 Unchecked, 6.9s Time] [2023-03-31 02:05:17,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2023-03-31 02:05:17,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 184. [2023-03-31 02:05:17,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 124 states have (on average 1.3548387096774193) internal successors, (168), 124 states have internal predecessors, (168), 48 states have call successors, (48), 13 states have call predecessors, (48), 11 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-03-31 02:05:17,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 262 transitions. [2023-03-31 02:05:17,347 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 262 transitions. Word has length 37 [2023-03-31 02:05:17,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 02:05:17,347 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 262 transitions. [2023-03-31 02:05:17,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 02:05:17,347 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 262 transitions. [2023-03-31 02:05:17,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-03-31 02:05:17,354 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 02:05:17,354 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] [2023-03-31 02:05:17,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-03-31 02:05:17,355 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 02:05:17,355 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 02:05:17,355 INFO L85 PathProgramCache]: Analyzing trace with hash -1196410887, now seen corresponding path program 1 times [2023-03-31 02:05:17,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 02:05:17,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047081217] [2023-03-31 02:05:17,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 02:05:17,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 02:05:17,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:05:17,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 02:05:17,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:05:17,822 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 02:05:17,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 02:05:17,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047081217] [2023-03-31 02:05:17,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047081217] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 02:05:17,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 02:05:17,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-03-31 02:05:17,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917427478] [2023-03-31 02:05:17,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 02:05:17,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-03-31 02:05:17,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 02:05:17,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-03-31 02:05:17,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-03-31 02:05:17,824 INFO L87 Difference]: Start difference. First operand 184 states and 262 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 02:05:19,962 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-03-31 02:05:21,968 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-03-31 02:05:23,973 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-03-31 02:05:24,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 02:05:24,724 INFO L93 Difference]: Finished difference Result 371 states and 536 transitions. [2023-03-31 02:05:24,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-03-31 02:05:24,724 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 41 [2023-03-31 02:05:24,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 02:05:24,726 INFO L225 Difference]: With dead ends: 371 [2023-03-31 02:05:24,726 INFO L226 Difference]: Without dead ends: 194 [2023-03-31 02:05:24,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-03-31 02:05:24,727 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 45 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 47 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2023-03-31 02:05:24,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 416 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 313 Invalid, 3 Unknown, 0 Unchecked, 6.8s Time] [2023-03-31 02:05:24,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2023-03-31 02:05:24,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 185. [2023-03-31 02:05:24,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 125 states have (on average 1.352) internal successors, (169), 125 states have internal predecessors, (169), 48 states have call successors, (48), 13 states have call predecessors, (48), 11 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-03-31 02:05:24,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 263 transitions. [2023-03-31 02:05:24,771 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 263 transitions. Word has length 41 [2023-03-31 02:05:24,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 02:05:24,771 INFO L495 AbstractCegarLoop]: Abstraction has 185 states and 263 transitions. [2023-03-31 02:05:24,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 02:05:24,771 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 263 transitions. [2023-03-31 02:05:24,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-03-31 02:05:24,772 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 02:05:24,772 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] [2023-03-31 02:05:24,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-03-31 02:05:24,772 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 02:05:24,773 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 02:05:24,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1054850693, now seen corresponding path program 1 times [2023-03-31 02:05:24,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 02:05:24,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373567371] [2023-03-31 02:05:24,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 02:05:24,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 02:05:24,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:05:25,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 02:05:25,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:05:25,176 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 02:05:25,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 02:05:25,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373567371] [2023-03-31 02:05:25,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373567371] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 02:05:25,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1461081896] [2023-03-31 02:05:25,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 02:05:25,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 02:05:25,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 02:05:25,181 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) [2023-03-31 02:05:25,191 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-03-31 02:05:25,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:05:25,886 INFO L262 TraceCheckSpWp]: Trace formula consists of 1861 conjuncts, 3 conjunts are in the unsatisfiable core [2023-03-31 02:05:25,893 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 02:05:25,940 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 02:05:25,941 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-31 02:05:25,971 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 02:05:25,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1461081896] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-31 02:05:25,972 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-03-31 02:05:25,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 7 [2023-03-31 02:05:25,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692226554] [2023-03-31 02:05:25,972 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-03-31 02:05:25,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-03-31 02:05:25,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 02:05:25,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-03-31 02:05:25,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-03-31 02:05:25,973 INFO L87 Difference]: Start difference. First operand 185 states and 263 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 02:05:28,368 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-03-31 02:05:30,373 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-03-31 02:05:32,385 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-03-31 02:05:34,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-03-31 02:05:35,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 02:05:35,532 INFO L93 Difference]: Finished difference Result 375 states and 541 transitions. [2023-03-31 02:05:35,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-03-31 02:05:35,533 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 43 [2023-03-31 02:05:35,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 02:05:35,536 INFO L225 Difference]: With dead ends: 375 [2023-03-31 02:05:35,536 INFO L226 Difference]: Without dead ends: 197 [2023-03-31 02:05:35,537 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 85 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-03-31 02:05:35,539 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 48 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 48 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2023-03-31 02:05:35,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 613 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 390 Invalid, 4 Unknown, 0 Unchecked, 9.2s Time] [2023-03-31 02:05:35,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2023-03-31 02:05:35,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 189. [2023-03-31 02:05:35,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 129 states have (on average 1.3410852713178294) internal successors, (173), 129 states have internal predecessors, (173), 48 states have call successors, (48), 13 states have call predecessors, (48), 11 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-03-31 02:05:35,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 267 transitions. [2023-03-31 02:05:35,578 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 267 transitions. Word has length 43 [2023-03-31 02:05:35,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 02:05:35,578 INFO L495 AbstractCegarLoop]: Abstraction has 189 states and 267 transitions. [2023-03-31 02:05:35,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 02:05:35,578 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 267 transitions. [2023-03-31 02:05:35,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-03-31 02:05:35,579 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 02:05:35,579 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 02:05:35,593 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-03-31 02:05:35,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 02:05:35,790 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 02:05:35,791 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 02:05:35,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1142909695, now seen corresponding path program 2 times [2023-03-31 02:05:35,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 02:05:35,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613223472] [2023-03-31 02:05:35,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 02:05:35,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 02:05:35,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:05:36,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 02:05:36,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:05:36,278 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-03-31 02:05:36,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 02:05:36,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613223472] [2023-03-31 02:05:36,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613223472] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 02:05:36,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1268044585] [2023-03-31 02:05:36,279 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-03-31 02:05:36,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 02:05:36,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 02:05:36,281 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) [2023-03-31 02:05:36,284 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-03-31 02:05:37,612 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-03-31 02:05:37,612 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-03-31 02:05:37,621 INFO L262 TraceCheckSpWp]: Trace formula consists of 1744 conjuncts, 7 conjunts are in the unsatisfiable core [2023-03-31 02:05:37,625 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 02:05:37,643 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-03-31 02:05:37,644 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-03-31 02:05:37,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1268044585] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 02:05:37,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-03-31 02:05:37,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2023-03-31 02:05:37,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912684606] [2023-03-31 02:05:37,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 02:05:37,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-03-31 02:05:37,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 02:05:37,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-03-31 02:05:37,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-03-31 02:05:37,645 INFO L87 Difference]: Start difference. First operand 189 states and 267 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 02:05:37,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 02:05:37,671 INFO L93 Difference]: Finished difference Result 356 states and 507 transitions. [2023-03-31 02:05:37,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-03-31 02:05:37,671 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 47 [2023-03-31 02:05:37,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 02:05:37,673 INFO L225 Difference]: With dead ends: 356 [2023-03-31 02:05:37,673 INFO L226 Difference]: Without dead ends: 189 [2023-03-31 02:05:37,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-03-31 02:05:37,674 INFO L413 NwaCegarLoop]: 259 mSDtfsCounter, 0 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-03-31 02:05:37,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 517 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-03-31 02:05:37,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2023-03-31 02:05:37,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 189. [2023-03-31 02:05:37,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 129 states have (on average 1.3333333333333333) internal successors, (172), 129 states have internal predecessors, (172), 48 states have call successors, (48), 13 states have call predecessors, (48), 11 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-03-31 02:05:37,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 266 transitions. [2023-03-31 02:05:37,715 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 266 transitions. Word has length 47 [2023-03-31 02:05:37,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 02:05:37,717 INFO L495 AbstractCegarLoop]: Abstraction has 189 states and 266 transitions. [2023-03-31 02:05:37,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 02:05:37,717 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 266 transitions. [2023-03-31 02:05:37,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-03-31 02:05:37,719 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 02:05:37,719 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 02:05:37,737 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-03-31 02:05:37,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 02:05:37,932 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 02:05:37,932 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 02:05:37,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1744429293, now seen corresponding path program 1 times [2023-03-31 02:05:37,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 02:05:37,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59551965] [2023-03-31 02:05:37,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 02:05:37,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 02:05:38,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:05:38,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 02:05:38,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:05:38,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-03-31 02:05:38,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:05:38,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 02:05:38,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:05:38,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 02:05:38,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:05:38,522 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-03-31 02:05:38,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 02:05:38,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59551965] [2023-03-31 02:05:38,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59551965] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 02:05:38,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [153610380] [2023-03-31 02:05:38,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 02:05:38,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 02:05:38,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 02:05:38,525 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) [2023-03-31 02:05:38,527 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-03-31 02:05:39,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:05:39,439 INFO L262 TraceCheckSpWp]: Trace formula consists of 2094 conjuncts, 3 conjunts are in the unsatisfiable core [2023-03-31 02:05:39,443 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 02:05:39,487 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-03-31 02:05:39,487 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-31 02:05:39,544 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-03-31 02:05:39,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [153610380] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-31 02:05:39,545 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-03-31 02:05:39,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 8 [2023-03-31 02:05:39,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733126601] [2023-03-31 02:05:39,545 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-03-31 02:05:39,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-03-31 02:05:39,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 02:05:39,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-03-31 02:05:39,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-03-31 02:05:39,548 INFO L87 Difference]: Start difference. First operand 189 states and 266 transitions. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-03-31 02:05:41,912 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-03-31 02:05:43,918 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-03-31 02:05:45,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-03-31 02:05:47,932 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-03-31 02:05:49,939 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-03-31 02:05:51,943 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-03-31 02:05:53,947 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-03-31 02:05:54,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 02:05:54,391 INFO L93 Difference]: Finished difference Result 379 states and 541 transitions. [2023-03-31 02:05:54,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-03-31 02:05:54,391 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 67 [2023-03-31 02:05:54,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 02:05:54,393 INFO L225 Difference]: With dead ends: 379 [2023-03-31 02:05:54,393 INFO L226 Difference]: Without dead ends: 207 [2023-03-31 02:05:54,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 138 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-03-31 02:05:54,395 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 131 mSDsluCounter, 482 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 140 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 698 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.5s IncrementalHoareTripleChecker+Time [2023-03-31 02:05:54,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 698 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 317 Invalid, 7 Unknown, 0 Unchecked, 14.5s Time] [2023-03-31 02:05:54,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2023-03-31 02:05:54,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 199. [2023-03-31 02:05:54,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 139 states have (on average 1.316546762589928) internal successors, (183), 139 states have internal predecessors, (183), 48 states have call successors, (48), 13 states have call predecessors, (48), 11 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-03-31 02:05:54,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 277 transitions. [2023-03-31 02:05:54,419 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 277 transitions. Word has length 67 [2023-03-31 02:05:54,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 02:05:54,420 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 277 transitions. [2023-03-31 02:05:54,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-03-31 02:05:54,420 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 277 transitions. [2023-03-31 02:05:54,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-03-31 02:05:54,421 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 02:05:54,421 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 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] [2023-03-31 02:05:54,445 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-03-31 02:05:54,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 02:05:54,641 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 02:05:54,642 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 02:05:54,642 INFO L85 PathProgramCache]: Analyzing trace with hash -626924975, now seen corresponding path program 2 times [2023-03-31 02:05:54,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 02:05:54,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832430982] [2023-03-31 02:05:54,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 02:05:54,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 02:05:54,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:05:55,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 02:05:56,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:05:56,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-03-31 02:05:56,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:05:56,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 02:05:56,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:05:56,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 02:05:56,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:05:56,184 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-03-31 02:05:56,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 02:05:56,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832430982] [2023-03-31 02:05:56,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832430982] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 02:05:56,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 02:05:56,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-03-31 02:05:56,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521856886] [2023-03-31 02:05:56,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 02:05:56,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-03-31 02:05:56,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 02:05:56,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-03-31 02:05:56,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-03-31 02:05:56,186 INFO L87 Difference]: Start difference. First operand 199 states and 277 transitions. Second operand has 10 states, 10 states have (on average 5.3) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-03-31 02:05:58,575 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-03-31 02:06:00,581 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-03-31 02:06:02,586 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-03-31 02:06:04,592 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-03-31 02:06:07,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 02:06:07,564 INFO L93 Difference]: Finished difference Result 436 states and 652 transitions. [2023-03-31 02:06:07,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-03-31 02:06:07,565 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 77 [2023-03-31 02:06:07,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 02:06:07,567 INFO L225 Difference]: With dead ends: 436 [2023-03-31 02:06:07,568 INFO L226 Difference]: Without dead ends: 409 [2023-03-31 02:06:07,568 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=108, Invalid=198, Unknown=0, NotChecked=0, Total=306 [2023-03-31 02:06:07,569 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 620 mSDsluCounter, 729 mSDsCounter, 0 mSdLazyCounter, 1173 mSolverCounterSat, 383 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 652 SdHoareTripleChecker+Valid, 969 SdHoareTripleChecker+Invalid, 1560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 383 IncrementalHoareTripleChecker+Valid, 1173 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2023-03-31 02:06:07,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [652 Valid, 969 Invalid, 1560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [383 Valid, 1173 Invalid, 4 Unknown, 0 Unchecked, 10.7s Time] [2023-03-31 02:06:07,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2023-03-31 02:06:07,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 395. [2023-03-31 02:06:07,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 258 states have (on average 1.375968992248062) internal successors, (355), 258 states have internal predecessors, (355), 109 states have call successors, (109), 23 states have call predecessors, (109), 27 states have return successors, (132), 113 states have call predecessors, (132), 107 states have call successors, (132) [2023-03-31 02:06:07,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 596 transitions. [2023-03-31 02:06:07,617 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 596 transitions. Word has length 77 [2023-03-31 02:06:07,619 INFO L84 Accepts]: Finished accepts. word is rejected.