/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 01:54:50,179 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 01:54:50,181 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 01:54:50,219 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 01:54:50,220 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 01:54:50,222 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 01:54:50,225 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 01:54:50,229 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 01:54:50,231 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 01:54:50,235 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 01:54:50,236 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 01:54:50,238 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 01:54:50,238 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 01:54:50,240 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 01:54:50,241 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 01:54:50,242 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 01:54:50,243 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 01:54:50,244 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 01:54:50,245 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 01:54:50,250 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 01:54:50,251 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 01:54:50,253 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 01:54:50,254 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 01:54:50,255 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 01:54:50,262 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 01:54:50,262 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 01:54:50,263 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 01:54:50,264 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 01:54:50,264 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 01:54:50,265 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 01:54:50,265 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 01:54:50,266 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 01:54:50,267 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 01:54:50,267 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 01:54:50,268 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 01:54:50,268 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 01:54:50,269 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 01:54:50,269 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 01:54:50,269 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 01:54:50,270 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 01:54:50,270 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 01:54:50,272 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 01:54:50,299 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 01:54:50,299 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 01:54:50,300 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 01:54:50,300 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 01:54:50,301 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 01:54:50,301 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 01:54:50,302 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-03-31 01:54:50,302 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-03-31 01:54:50,302 INFO L138 SettingsManager]: * Use SBE=true [2023-03-31 01:54:50,302 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 01:54:50,303 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 01:54:50,303 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 01:54:50,303 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 01:54:50,304 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 01:54:50,304 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 01:54:50,304 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 01:54:50,304 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 01:54:50,304 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 01:54:50,304 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 01:54:50,305 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 01:54:50,305 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 01:54:50,305 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 01:54:50,305 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-03-31 01:54:50,305 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 01:54:50,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 01:54:50,306 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 01:54:50,306 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 01:54:50,306 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 01:54:50,306 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-03-31 01:54:50,306 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 01:54:50,306 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-03-31 01:54:50,307 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 01:54:50,307 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-03-31 01:54:50,307 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-03-31 01:54:50,307 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-03-31 01:54:50,307 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-03-31 01:54:50,524 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 01:54:50,544 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 01:54:50,546 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 01:54:50,547 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 01:54:50,547 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 01:54:50,548 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c [2023-03-31 01:54:51,681 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 01:54:52,076 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 01:54:52,076 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c [2023-03-31 01:54:52,105 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5de7c78b/5c06980dc4db4e22abfded7767d775d3/FLAGd88d28604 [2023-03-31 01:54:52,120 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5de7c78b/5c06980dc4db4e22abfded7767d775d3 [2023-03-31 01:54:52,122 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 01:54:52,123 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 01:54:52,126 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 01:54:52,126 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 01:54:52,129 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 01:54:52,129 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 01:54:52" (1/1) ... [2023-03-31 01:54:52,130 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4aa997b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:54:52, skipping insertion in model container [2023-03-31 01:54:52,131 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 01:54:52" (1/1) ... [2023-03-31 01:54:52,137 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 01:54:52,246 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 01:54:52,763 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[37768,37781] [2023-03-31 01:54:52,831 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[53783,53796] [2023-03-31 01:54:52,862 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[61800,61813] [2023-03-31 01:54:52,876 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[65782,65795] [2023-03-31 01:54:52,894 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[69649,69662] [2023-03-31 01:54:52,954 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[86712,86725] [2023-03-31 01:54:52,979 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[94766,94779] [2023-03-31 01:54:52,997 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[98785,98798] [2023-03-31 01:54:53,030 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[102689,102702] [2023-03-31 01:54:53,039 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[107203,107216] [2023-03-31 01:54:53,050 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[111131,111144] [2023-03-31 01:54:53,058 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[115150,115163] [2023-03-31 01:54:53,066 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[119054,119067] [2023-03-31 01:54:53,075 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[123189,123202] [2023-03-31 01:54:53,083 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[127260,127273] [2023-03-31 01:54:53,091 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[131260,131273] [2023-03-31 01:54:53,140 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 01:54:53,155 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 01:54:53,344 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[37768,37781] [2023-03-31 01:54:53,378 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[53783,53796] [2023-03-31 01:54:53,392 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[61800,61813] [2023-03-31 01:54:53,399 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[65782,65795] [2023-03-31 01:54:53,406 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[69649,69662] [2023-03-31 01:54:53,432 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[86712,86725] [2023-03-31 01:54:53,445 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[94766,94779] [2023-03-31 01:54:53,454 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[98785,98798] [2023-03-31 01:54:53,461 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[102689,102702] [2023-03-31 01:54:53,469 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[107203,107216] [2023-03-31 01:54:53,476 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[111131,111144] [2023-03-31 01:54:53,483 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[115150,115163] [2023-03-31 01:54:53,493 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[119054,119067] [2023-03-31 01:54:53,502 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[123189,123202] [2023-03-31 01:54:53,509 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[127260,127273] [2023-03-31 01:54:53,517 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[131260,131273] [2023-03-31 01:54:53,536 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 01:54:53,567 INFO L208 MainTranslator]: Completed translation [2023-03-31 01:54:53,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:54:53 WrapperNode [2023-03-31 01:54:53,567 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 01:54:53,568 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 01:54:53,569 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 01:54:53,569 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 01:54:53,579 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:54:53" (1/1) ... [2023-03-31 01:54:53,579 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:54:53" (1/1) ... [2023-03-31 01:54:53,634 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:54:53" (1/1) ... [2023-03-31 01:54:53,636 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:54:53" (1/1) ... [2023-03-31 01:54:53,710 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:54:53" (1/1) ... [2023-03-31 01:54:53,741 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:54:53" (1/1) ... [2023-03-31 01:54:53,766 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:54:53" (1/1) ... [2023-03-31 01:54:53,780 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:54:53" (1/1) ... [2023-03-31 01:54:53,807 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 01:54:53,808 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 01:54:53,808 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 01:54:53,808 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 01:54:53,809 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:54:53" (1/1) ... [2023-03-31 01:54:53,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 01:54:53,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 01:54:53,839 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 01:54:53,864 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 01:54:53,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 01:54:53,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 01:54:53,883 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 01:54:53,883 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-03-31 01:54:53,883 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 01:54:53,884 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 01:54:53,884 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 01:54:53,884 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 01:54:53,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 01:54:53,884 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-03-31 01:54:53,884 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-03-31 01:54:53,885 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-03-31 01:54:53,885 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-03-31 01:54:53,885 INFO L130 BoogieDeclarations]: Found specification of procedure read [2023-03-31 01:54:53,885 INFO L130 BoogieDeclarations]: Found specification of procedure write [2023-03-31 01:54:53,885 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2023-03-31 01:54:53,886 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2023-03-31 01:54:53,886 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2023-03-31 01:54:53,886 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2023-03-31 01:54:53,886 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2023-03-31 01:54:53,886 INFO L130 BoogieDeclarations]: Found specification of procedure init [2023-03-31 01:54:53,886 INFO L130 BoogieDeclarations]: Found specification of procedure check [2023-03-31 01:54:53,886 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 01:54:53,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 01:54:53,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 01:54:53,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 01:54:53,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 01:54:53,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 01:54:53,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 01:54:54,200 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 01:54:54,202 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 01:54:56,690 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 01:54:56,711 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 01:54:56,712 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-03-31 01:54:56,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 01:54:56 BoogieIcfgContainer [2023-03-31 01:54:56,715 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 01:54:56,718 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 01:54:56,718 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 01:54:56,721 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 01:54:56,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 01:54:52" (1/3) ... [2023-03-31 01:54:56,721 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bb1fa76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 01:54:56, skipping insertion in model container [2023-03-31 01:54:56,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:54:53" (2/3) ... [2023-03-31 01:54:56,722 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bb1fa76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 01:54:56, skipping insertion in model container [2023-03-31 01:54:56,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 01:54:56" (3/3) ... [2023-03-31 01:54:56,723 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c [2023-03-31 01:54:56,740 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 01:54:56,741 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2023-03-31 01:54:56,819 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 01:54:56,825 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;@7ec1808a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-03-31 01:54:56,825 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2023-03-31 01:54:56,836 INFO L276 IsEmpty]: Start isEmpty. Operand has 1198 states, 1177 states have (on average 1.7697536108751062) internal successors, (2083), 1193 states have internal predecessors, (2083), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-03-31 01:54:56,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-03-31 01:54:56,864 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:54:56,865 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:54:56,867 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr1ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2023-03-31 01:54:56,872 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:54:56,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1562138125, now seen corresponding path program 1 times [2023-03-31 01:54:56,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:54:56,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271935163] [2023-03-31 01:54:56,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:54:56,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:54:57,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:54:59,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:54:59,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:54:59,187 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 01:54:59,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:54:59,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271935163] [2023-03-31 01:54:59,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271935163] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:54:59,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:54:59,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-03-31 01:54:59,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966211075] [2023-03-31 01:54:59,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:54:59,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-03-31 01:54:59,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:54:59,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-03-31 01:54:59,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-03-31 01:54:59,238 INFO L87 Difference]: Start difference. First operand has 1198 states, 1177 states have (on average 1.7697536108751062) internal successors, (2083), 1193 states have internal predecessors, (2083), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 6 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 01:55:06,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:55:06,892 INFO L93 Difference]: Finished difference Result 1492 states and 2548 transitions. [2023-03-31 01:55:06,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-03-31 01:55:06,902 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 77 [2023-03-31 01:55:06,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:55:06,919 INFO L225 Difference]: With dead ends: 1492 [2023-03-31 01:55:06,919 INFO L226 Difference]: Without dead ends: 880 [2023-03-31 01:55:06,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-03-31 01:55:06,928 INFO L413 NwaCegarLoop]: 866 mSDtfsCounter, 4374 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 2123 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4374 SdHoareTripleChecker+Valid, 903 SdHoareTripleChecker+Invalid, 2143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 2123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2023-03-31 01:55:06,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4374 Valid, 903 Invalid, 2143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 2123 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2023-03-31 01:55:06,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 880 states. [2023-03-31 01:55:07,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 880 to 880. [2023-03-31 01:55:07,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 880 states, 861 states have (on average 1.2880371660859466) internal successors, (1109), 876 states have internal predecessors, (1109), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 01:55:07,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 1112 transitions. [2023-03-31 01:55:07,033 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 1112 transitions. Word has length 77 [2023-03-31 01:55:07,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:55:07,034 INFO L495 AbstractCegarLoop]: Abstraction has 880 states and 1112 transitions. [2023-03-31 01:55:07,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 01:55:07,035 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 1112 transitions. [2023-03-31 01:55:07,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-03-31 01:55:07,040 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:55:07,041 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:55:07,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-31 01:55:07,049 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2023-03-31 01:55:07,049 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:55:07,049 INFO L85 PathProgramCache]: Analyzing trace with hash 2011788887, now seen corresponding path program 1 times [2023-03-31 01:55:07,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:55:07,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644308507] [2023-03-31 01:55:07,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:55:07,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:55:07,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:55:08,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:55:08,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:55:08,526 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 01:55:08,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:55:08,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644308507] [2023-03-31 01:55:08,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644308507] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:55:08,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:55:08,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-03-31 01:55:08,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872080470] [2023-03-31 01:55:08,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:55:08,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-03-31 01:55:08,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:55:08,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-03-31 01:55:08,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-03-31 01:55:08,529 INFO L87 Difference]: Start difference. First operand 880 states and 1112 transitions. Second operand has 6 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 01:55:13,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:55:13,022 INFO L93 Difference]: Finished difference Result 1090 states and 1373 transitions. [2023-03-31 01:55:13,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-03-31 01:55:13,023 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 77 [2023-03-31 01:55:13,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:55:13,026 INFO L225 Difference]: With dead ends: 1090 [2023-03-31 01:55:13,026 INFO L226 Difference]: Without dead ends: 654 [2023-03-31 01:55:13,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-03-31 01:55:13,029 INFO L413 NwaCegarLoop]: 430 mSDtfsCounter, 2402 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 1227 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2402 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 1245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-03-31 01:55:13,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2402 Valid, 454 Invalid, 1245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1227 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-03-31 01:55:13,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 654 states. [2023-03-31 01:55:13,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 654 to 654. [2023-03-31 01:55:13,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 635 states have (on average 1.300787401574803) internal successors, (826), 650 states have internal predecessors, (826), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 01:55:13,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 829 transitions. [2023-03-31 01:55:13,063 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 829 transitions. Word has length 77 [2023-03-31 01:55:13,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:55:13,064 INFO L495 AbstractCegarLoop]: Abstraction has 654 states and 829 transitions. [2023-03-31 01:55:13,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 01:55:13,064 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 829 transitions. [2023-03-31 01:55:13,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-03-31 01:55:13,065 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:55:13,066 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:55:13,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-03-31 01:55:13,066 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr5ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2023-03-31 01:55:13,066 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:55:13,067 INFO L85 PathProgramCache]: Analyzing trace with hash 1977278258, now seen corresponding path program 1 times [2023-03-31 01:55:13,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:55:13,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279227207] [2023-03-31 01:55:13,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:55:13,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:55:13,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:55:14,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:55:14,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:55:14,594 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 01:55:14,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:55:14,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279227207] [2023-03-31 01:55:14,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279227207] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:55:14,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:55:14,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-03-31 01:55:14,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130210202] [2023-03-31 01:55:14,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:55:14,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-03-31 01:55:14,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:55:14,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-03-31 01:55:14,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-03-31 01:55:14,597 INFO L87 Difference]: Start difference. First operand 654 states and 829 transitions. Second operand has 6 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 01:55:18,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:55:18,827 INFO L93 Difference]: Finished difference Result 1234 states and 1590 transitions. [2023-03-31 01:55:18,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-03-31 01:55:18,828 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 77 [2023-03-31 01:55:18,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:55:18,832 INFO L225 Difference]: With dead ends: 1234 [2023-03-31 01:55:18,832 INFO L226 Difference]: Without dead ends: 887 [2023-03-31 01:55:18,833 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-03-31 01:55:18,835 INFO L413 NwaCegarLoop]: 413 mSDtfsCounter, 2979 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 1266 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2979 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 1278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-03-31 01:55:18,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2979 Valid, 640 Invalid, 1278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1266 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-03-31 01:55:18,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2023-03-31 01:55:18,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 795. [2023-03-31 01:55:18,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 795 states, 776 states have (on average 1.356958762886598) internal successors, (1053), 791 states have internal predecessors, (1053), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 01:55:18,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 795 states to 795 states and 1056 transitions. [2023-03-31 01:55:18,885 INFO L78 Accepts]: Start accepts. Automaton has 795 states and 1056 transitions. Word has length 77 [2023-03-31 01:55:18,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:55:18,886 INFO L495 AbstractCegarLoop]: Abstraction has 795 states and 1056 transitions. [2023-03-31 01:55:18,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 01:55:18,886 INFO L276 IsEmpty]: Start isEmpty. Operand 795 states and 1056 transitions. [2023-03-31 01:55:18,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-03-31 01:55:18,888 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:55:18,888 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:55:18,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-03-31 01:55:18,888 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr5ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2023-03-31 01:55:18,889 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:55:18,889 INFO L85 PathProgramCache]: Analyzing trace with hash -893268783, now seen corresponding path program 1 times [2023-03-31 01:55:18,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:55:18,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992740015] [2023-03-31 01:55:18,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:55:18,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:55:18,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:55:20,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:55:20,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:55:20,281 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 01:55:20,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:55:20,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992740015] [2023-03-31 01:55:20,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992740015] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:55:20,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:55:20,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-03-31 01:55:20,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455038315] [2023-03-31 01:55:20,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:55:20,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-03-31 01:55:20,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:55:20,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-03-31 01:55:20,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-03-31 01:55:20,285 INFO L87 Difference]: Start difference. First operand 795 states and 1056 transitions. Second operand has 6 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 01:55:23,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:55:23,948 INFO L93 Difference]: Finished difference Result 1007 states and 1328 transitions. [2023-03-31 01:55:23,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-03-31 01:55:23,949 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 79 [2023-03-31 01:55:23,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:55:23,952 INFO L225 Difference]: With dead ends: 1007 [2023-03-31 01:55:23,952 INFO L226 Difference]: Without dead ends: 599 [2023-03-31 01:55:23,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-03-31 01:55:23,954 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 1560 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 794 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1560 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 811 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-03-31 01:55:23,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1560 Valid, 341 Invalid, 811 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 794 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-03-31 01:55:23,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2023-03-31 01:55:23,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 599. [2023-03-31 01:55:23,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 580 states have (on average 1.3620689655172413) internal successors, (790), 595 states have internal predecessors, (790), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 01:55:23,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 793 transitions. [2023-03-31 01:55:23,997 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 793 transitions. Word has length 79 [2023-03-31 01:55:23,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:55:23,997 INFO L495 AbstractCegarLoop]: Abstraction has 599 states and 793 transitions. [2023-03-31 01:55:23,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 01:55:23,998 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 793 transitions. [2023-03-31 01:55:23,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-03-31 01:55:23,999 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:55:23,999 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:55:23,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-03-31 01:55:23,999 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr2ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2023-03-31 01:55:24,000 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:55:24,000 INFO L85 PathProgramCache]: Analyzing trace with hash -1963577853, now seen corresponding path program 1 times [2023-03-31 01:55:24,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:55:24,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425154228] [2023-03-31 01:55:24,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:55:24,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:55:24,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:55:25,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:55:25,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:55:25,367 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 01:55:25,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:55:25,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425154228] [2023-03-31 01:55:25,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425154228] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:55:25,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:55:25,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-03-31 01:55:25,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58304332] [2023-03-31 01:55:25,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:55:25,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-03-31 01:55:25,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:55:25,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-03-31 01:55:25,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-03-31 01:55:25,370 INFO L87 Difference]: Start difference. First operand 599 states and 793 transitions. Second operand has 6 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 01:55:28,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:55:28,607 INFO L93 Difference]: Finished difference Result 890 states and 1186 transitions. [2023-03-31 01:55:28,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-03-31 01:55:28,608 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 81 [2023-03-31 01:55:28,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:55:28,610 INFO L225 Difference]: With dead ends: 890 [2023-03-31 01:55:28,610 INFO L226 Difference]: Without dead ends: 591 [2023-03-31 01:55:28,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-03-31 01:55:28,612 INFO L413 NwaCegarLoop]: 278 mSDtfsCounter, 1511 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 805 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1511 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-03-31 01:55:28,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1511 Valid, 318 Invalid, 830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 805 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-03-31 01:55:28,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2023-03-31 01:55:28,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 591. [2023-03-31 01:55:28,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 572 states have (on average 1.3618881118881119) internal successors, (779), 587 states have internal predecessors, (779), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 01:55:28,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 782 transitions. [2023-03-31 01:55:28,655 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 782 transitions. Word has length 81 [2023-03-31 01:55:28,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:55:28,656 INFO L495 AbstractCegarLoop]: Abstraction has 591 states and 782 transitions. [2023-03-31 01:55:28,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 01:55:28,656 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 782 transitions. [2023-03-31 01:55:28,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-03-31 01:55:28,657 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:55:28,657 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:55:28,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-03-31 01:55:28,657 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr2ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2023-03-31 01:55:28,658 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:55:28,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1792090573, now seen corresponding path program 1 times [2023-03-31 01:55:28,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:55:28,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695179341] [2023-03-31 01:55:28,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:55:28,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:55:28,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:55:30,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:55:30,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:55:30,586 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 01:55:30,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:55:30,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695179341] [2023-03-31 01:55:30,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695179341] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:55:30,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:55:30,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-03-31 01:55:30,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337936508] [2023-03-31 01:55:30,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:55:30,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-03-31 01:55:30,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:55:30,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-03-31 01:55:30,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-03-31 01:55:30,589 INFO L87 Difference]: Start difference. First operand 591 states and 782 transitions. Second operand has 9 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 01:55:34,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:55:34,374 INFO L93 Difference]: Finished difference Result 1132 states and 1479 transitions. [2023-03-31 01:55:34,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-03-31 01:55:34,375 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 83 [2023-03-31 01:55:34,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:55:34,378 INFO L225 Difference]: With dead ends: 1132 [2023-03-31 01:55:34,378 INFO L226 Difference]: Without dead ends: 840 [2023-03-31 01:55:34,379 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2023-03-31 01:55:34,380 INFO L413 NwaCegarLoop]: 291 mSDtfsCounter, 3261 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 1177 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3261 SdHoareTripleChecker+Valid, 763 SdHoareTripleChecker+Invalid, 1190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-03-31 01:55:34,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3261 Valid, 763 Invalid, 1190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1177 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-03-31 01:55:34,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 840 states. [2023-03-31 01:55:34,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 840 to 591. [2023-03-31 01:55:34,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 572 states have (on average 1.3601398601398602) internal successors, (778), 587 states have internal predecessors, (778), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 01:55:34,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 781 transitions. [2023-03-31 01:55:34,440 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 781 transitions. Word has length 83 [2023-03-31 01:55:34,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:55:34,441 INFO L495 AbstractCegarLoop]: Abstraction has 591 states and 781 transitions. [2023-03-31 01:55:34,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 01:55:34,441 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 781 transitions. [2023-03-31 01:55:34,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-03-31 01:55:34,442 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:55:34,442 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:55:34,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-03-31 01:55:34,443 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr3ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2023-03-31 01:55:34,443 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:55:34,443 INFO L85 PathProgramCache]: Analyzing trace with hash -468614413, now seen corresponding path program 1 times [2023-03-31 01:55:34,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:55:34,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523721947] [2023-03-31 01:55:34,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:55:34,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:55:34,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:55:36,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:55:36,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:55:36,152 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 01:55:36,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:55:36,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523721947] [2023-03-31 01:55:36,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523721947] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:55:36,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:55:36,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-03-31 01:55:36,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15067940] [2023-03-31 01:55:36,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:55:36,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-03-31 01:55:36,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:55:36,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-03-31 01:55:36,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-03-31 01:55:36,154 INFO L87 Difference]: Start difference. First operand 591 states and 781 transitions. Second operand has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 01:55:40,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:55:40,145 INFO L93 Difference]: Finished difference Result 1158 states and 1560 transitions. [2023-03-31 01:55:40,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-03-31 01:55:40,146 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 83 [2023-03-31 01:55:40,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:55:40,150 INFO L225 Difference]: With dead ends: 1158 [2023-03-31 01:55:40,150 INFO L226 Difference]: Without dead ends: 1152 [2023-03-31 01:55:40,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-03-31 01:55:40,151 INFO L413 NwaCegarLoop]: 359 mSDtfsCounter, 2717 mSDsluCounter, 1132 mSDsCounter, 0 mSdLazyCounter, 1751 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2717 SdHoareTripleChecker+Valid, 1491 SdHoareTripleChecker+Invalid, 1769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-03-31 01:55:40,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2717 Valid, 1491 Invalid, 1769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1751 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-03-31 01:55:40,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1152 states. [2023-03-31 01:55:40,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1152 to 591. [2023-03-31 01:55:40,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 572 states have (on average 1.3583916083916083) internal successors, (777), 587 states have internal predecessors, (777), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 01:55:40,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 780 transitions. [2023-03-31 01:55:40,223 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 780 transitions. Word has length 83 [2023-03-31 01:55:40,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:55:40,223 INFO L495 AbstractCegarLoop]: Abstraction has 591 states and 780 transitions. [2023-03-31 01:55:40,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 01:55:40,223 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 780 transitions. [2023-03-31 01:55:40,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-03-31 01:55:40,224 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:55:40,225 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:55:40,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-03-31 01:55:40,225 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr11ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2023-03-31 01:55:40,225 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:55:40,225 INFO L85 PathProgramCache]: Analyzing trace with hash -181984205, now seen corresponding path program 1 times [2023-03-31 01:55:40,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:55:40,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188085250] [2023-03-31 01:55:40,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:55:40,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:55:40,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:55:42,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:55:42,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:55:42,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:55:42,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:55:42,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188085250] [2023-03-31 01:55:42,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188085250] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:55:42,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:55:42,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-03-31 01:55:42,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295770442] [2023-03-31 01:55:42,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:55:42,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-03-31 01:55:42,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:55:42,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-03-31 01:55:42,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2023-03-31 01:55:42,137 INFO L87 Difference]: Start difference. First operand 591 states and 780 transitions. Second operand has 13 states, 12 states have (on average 6.666666666666667) internal successors, (80), 11 states have internal predecessors, (80), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)