./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec3_productSimulator.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ff03de63 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/email_spec3_productSimulator.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 18d9c4eb49bcfbad00b16e4c52915ece2e20abb9b599480aaed1e3c1557875b0 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 13:06:54,169 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 13:06:54,170 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 13:06:54,232 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 13:06:54,236 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 13:06:54,238 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 13:06:54,240 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 13:06:54,242 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 13:06:54,243 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 13:06:54,246 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 13:06:54,247 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 13:06:54,248 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 13:06:54,248 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 13:06:54,250 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 13:06:54,251 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 13:06:54,252 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 13:06:54,253 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 13:06:54,254 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 13:06:54,257 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 13:06:54,259 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 13:06:54,260 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 13:06:54,261 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 13:06:54,262 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 13:06:54,262 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 13:06:54,268 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 13:06:54,268 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 13:06:54,269 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 13:06:54,269 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 13:06:54,270 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 13:06:54,270 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 13:06:54,271 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 13:06:54,271 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 13:06:54,272 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 13:06:54,273 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 13:06:54,274 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 13:06:54,274 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 13:06:54,274 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 13:06:54,275 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 13:06:54,275 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 13:06:54,275 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 13:06:54,276 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 13:06:54,276 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-21 13:06:54,299 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 13:06:54,300 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 13:06:54,300 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 13:06:54,300 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 13:06:54,301 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 13:06:54,301 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 13:06:54,301 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 13:06:54,301 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 13:06:54,302 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 13:06:54,302 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 13:06:54,303 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 13:06:54,303 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 13:06:54,303 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 13:06:54,303 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 13:06:54,303 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 13:06:54,303 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 13:06:54,303 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 13:06:54,304 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 13:06:54,304 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 13:06:54,304 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 13:06:54,304 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 13:06:54,304 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 13:06:54,304 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 13:06:54,304 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 13:06:54,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 13:06:54,305 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 13:06:54,305 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 13:06:54,305 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 13:06:54,305 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 13:06:54,306 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 13:06:54,306 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 13:06:54,306 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 13:06:54,307 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 13:06:54,307 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 13:06:54,307 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 18d9c4eb49bcfbad00b16e4c52915ece2e20abb9b599480aaed1e3c1557875b0 [2021-12-21 13:06:54,475 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 13:06:54,487 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 13:06:54,489 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 13:06:54,489 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 13:06:54,490 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 13:06:54,491 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec3_productSimulator.cil.c [2021-12-21 13:06:54,529 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f2a11466/9acb088a196f4c8683194520e16ca50b/FLAG9fd8ccdcc [2021-12-21 13:06:54,965 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 13:06:54,968 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec3_productSimulator.cil.c [2021-12-21 13:06:54,992 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f2a11466/9acb088a196f4c8683194520e16ca50b/FLAG9fd8ccdcc [2021-12-21 13:06:55,263 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f2a11466/9acb088a196f4c8683194520e16ca50b [2021-12-21 13:06:55,266 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 13:06:55,268 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 13:06:55,271 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 13:06:55,271 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 13:06:55,276 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 13:06:55,276 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 01:06:55" (1/1) ... [2021-12-21 13:06:55,278 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@592de163 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:06:55, skipping insertion in model container [2021-12-21 13:06:55,278 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 01:06:55" (1/1) ... [2021-12-21 13:06:55,284 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 13:06:55,335 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 13:06:55,526 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec3_productSimulator.cil.c[9250,9263] [2021-12-21 13:06:55,688 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 13:06:55,695 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 13:06:55,714 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec3_productSimulator.cil.c[9250,9263] [2021-12-21 13:06:55,781 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 13:06:55,810 INFO L208 MainTranslator]: Completed translation [2021-12-21 13:06:55,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:06:55 WrapperNode [2021-12-21 13:06:55,811 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 13:06:55,812 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 13:06:55,812 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 13:06:55,812 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 13:06:55,817 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:06:55" (1/1) ... [2021-12-21 13:06:55,850 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:06:55" (1/1) ... [2021-12-21 13:06:55,924 INFO L137 Inliner]: procedures = 152, calls = 292, calls flagged for inlining = 67, calls inlined = 64, statements flattened = 1344 [2021-12-21 13:06:55,924 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 13:06:55,925 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 13:06:55,925 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 13:06:55,925 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 13:06:55,931 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:06:55" (1/1) ... [2021-12-21 13:06:55,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:06:55" (1/1) ... [2021-12-21 13:06:55,940 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:06:55" (1/1) ... [2021-12-21 13:06:55,944 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:06:55" (1/1) ... [2021-12-21 13:06:55,973 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:06:55" (1/1) ... [2021-12-21 13:06:55,991 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:06:55" (1/1) ... [2021-12-21 13:06:55,995 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:06:55" (1/1) ... [2021-12-21 13:06:56,015 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 13:06:56,016 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 13:06:56,016 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 13:06:56,016 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 13:06:56,017 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:06:55" (1/1) ... [2021-12-21 13:06:56,031 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 13:06:56,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 13:06:56,053 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) [2021-12-21 13:06:56,107 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 [2021-12-21 13:06:56,128 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2021-12-21 13:06:56,128 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2021-12-21 13:06:56,129 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__before__Keys [2021-12-21 13:06:56,129 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__before__Keys [2021-12-21 13:06:56,129 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Sign [2021-12-21 13:06:56,129 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Sign [2021-12-21 13:06:56,129 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2021-12-21 13:06:56,129 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2021-12-21 13:06:56,129 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2021-12-21 13:06:56,130 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2021-12-21 13:06:56,130 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2021-12-21 13:06:56,130 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2021-12-21 13:06:56,130 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2021-12-21 13:06:56,130 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2021-12-21 13:06:56,130 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Verify [2021-12-21 13:06:56,130 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Verify [2021-12-21 13:06:56,130 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2021-12-21 13:06:56,131 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2021-12-21 13:06:56,131 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__before__Keys [2021-12-21 13:06:56,131 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__before__Keys [2021-12-21 13:06:56,131 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2021-12-21 13:06:56,131 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2021-12-21 13:06:56,131 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2021-12-21 13:06:56,132 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2021-12-21 13:06:56,132 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2021-12-21 13:06:56,132 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2021-12-21 13:06:56,132 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Decrypt [2021-12-21 13:06:56,132 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Decrypt [2021-12-21 13:06:56,132 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Encrypt [2021-12-21 13:06:56,132 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Encrypt [2021-12-21 13:06:56,132 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2021-12-21 13:06:56,132 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2021-12-21 13:06:56,133 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2021-12-21 13:06:56,133 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2021-12-21 13:06:56,133 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2021-12-21 13:06:56,133 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2021-12-21 13:06:56,133 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-12-21 13:06:56,133 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Forward [2021-12-21 13:06:56,133 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Forward [2021-12-21 13:06:56,133 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2021-12-21 13:06:56,134 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2021-12-21 13:06:56,134 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2021-12-21 13:06:56,134 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2021-12-21 13:06:56,134 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2021-12-21 13:06:56,134 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2021-12-21 13:06:56,134 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__before__Encrypt [2021-12-21 13:06:56,134 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__before__Encrypt [2021-12-21 13:06:56,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 13:06:56,134 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2021-12-21 13:06:56,135 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2021-12-21 13:06:56,135 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2021-12-21 13:06:56,135 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2021-12-21 13:06:56,135 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__AddressBook [2021-12-21 13:06:56,135 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__AddressBook [2021-12-21 13:06:56,136 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Encrypt [2021-12-21 13:06:56,136 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Encrypt [2021-12-21 13:06:56,137 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__AutoResponder [2021-12-21 13:06:56,137 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__AutoResponder [2021-12-21 13:06:56,137 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2021-12-21 13:06:56,137 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2021-12-21 13:06:56,138 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2021-12-21 13:06:56,138 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2021-12-21 13:06:56,138 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-12-21 13:06:56,138 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-12-21 13:06:56,138 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2021-12-21 13:06:56,138 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2021-12-21 13:06:56,138 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2021-12-21 13:06:56,139 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2021-12-21 13:06:56,139 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2021-12-21 13:06:56,139 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2021-12-21 13:06:56,139 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2021-12-21 13:06:56,139 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2021-12-21 13:06:56,139 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2021-12-21 13:06:56,139 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2021-12-21 13:06:56,139 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__before__Keys [2021-12-21 13:06:56,140 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__before__Keys [2021-12-21 13:06:56,140 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Verify [2021-12-21 13:06:56,140 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Verify [2021-12-21 13:06:56,140 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2021-12-21 13:06:56,140 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2021-12-21 13:06:56,140 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2021-12-21 13:06:56,141 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2021-12-21 13:06:56,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 13:06:56,141 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2021-12-21 13:06:56,141 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2021-12-21 13:06:56,141 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Sign [2021-12-21 13:06:56,141 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Sign [2021-12-21 13:06:56,141 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-12-21 13:06:56,141 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-12-21 13:06:56,141 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2021-12-21 13:06:56,142 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2021-12-21 13:06:56,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 13:06:56,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 13:06:56,375 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 13:06:56,376 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 13:06:57,070 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 13:06:57,078 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 13:06:57,079 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-21 13:06:57,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 01:06:57 BoogieIcfgContainer [2021-12-21 13:06:57,081 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 13:06:57,082 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 13:06:57,082 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 13:06:57,084 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 13:06:57,084 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 01:06:55" (1/3) ... [2021-12-21 13:06:57,085 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@726d6557 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 01:06:57, skipping insertion in model container [2021-12-21 13:06:57,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:06:55" (2/3) ... [2021-12-21 13:06:57,085 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@726d6557 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 01:06:57, skipping insertion in model container [2021-12-21 13:06:57,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 01:06:57" (3/3) ... [2021-12-21 13:06:57,086 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec3_productSimulator.cil.c [2021-12-21 13:06:57,090 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 13:06:57,090 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 13:06:57,121 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 13:06:57,127 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-21 13:06:57,127 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 13:06:57,148 INFO L276 IsEmpty]: Start isEmpty. Operand has 614 states, 453 states have (on average 1.5121412803532008) internal successors, (685), 475 states have internal predecessors, (685), 115 states have call successors, (115), 44 states have call predecessors, (115), 44 states have return successors, (115), 113 states have call predecessors, (115), 115 states have call successors, (115) [2021-12-21 13:06:57,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2021-12-21 13:06:57,166 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:06:57,166 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:06:57,167 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:06:57,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:06:57,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1093087284, now seen corresponding path program 1 times [2021-12-21 13:06:57,176 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:06:57,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502874497] [2021-12-21 13:06:57,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:06:57,177 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:06:57,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:06:57,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 13:06:57,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:06:57,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 13:06:57,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:06:57,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-21 13:06:57,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:06:57,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 13:06:57,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:06:57,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-21 13:06:57,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:06:57,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-21 13:06:57,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:06:57,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 13:06:57,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:06:57,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-21 13:06:57,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:06:57,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 13:06:57,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:06:57,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:06:57,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:06:57,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-21 13:06:57,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:06:57,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:06:57,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:06:57,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-21 13:06:57,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:06:57,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:06:57,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:06:57,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-21 13:06:57,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:06:57,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-21 13:06:57,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:06:57,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-21 13:06:57,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:06:57,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-21 13:06:57,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:06:57,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-21 13:06:57,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:06:57,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-21 13:06:57,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:06:57,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-21 13:06:57,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:06:57,617 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-12-21 13:06:57,618 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:06:57,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502874497] [2021-12-21 13:06:57,618 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502874497] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:06:57,618 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:06:57,619 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 13:06:57,620 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113534753] [2021-12-21 13:06:57,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:06:57,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 13:06:57,626 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:06:57,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 13:06:57,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 13:06:57,648 INFO L87 Difference]: Start difference. First operand has 614 states, 453 states have (on average 1.5121412803532008) internal successors, (685), 475 states have internal predecessors, (685), 115 states have call successors, (115), 44 states have call predecessors, (115), 44 states have return successors, (115), 113 states have call predecessors, (115), 115 states have call successors, (115) Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 2 states have internal predecessors, (80), 2 states have call successors, (28), 5 states have call predecessors, (28), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-21 13:06:58,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:06:58,569 INFO L93 Difference]: Finished difference Result 1093 states and 1654 transitions. [2021-12-21 13:06:58,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 13:06:58,572 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 2 states have internal predecessors, (80), 2 states have call successors, (28), 5 states have call predecessors, (28), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 152 [2021-12-21 13:06:58,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:06:58,595 INFO L225 Difference]: With dead ends: 1093 [2021-12-21 13:06:58,596 INFO L226 Difference]: Without dead ends: 741 [2021-12-21 13:06:58,603 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-21 13:06:58,606 INFO L933 BasicCegarLoop]: 924 mSDtfsCounter, 1375 mSDsluCounter, 726 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 652 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1381 SdHoareTripleChecker+Valid, 1650 SdHoareTripleChecker+Invalid, 1151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 652 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-21 13:06:58,607 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1381 Valid, 1650 Invalid, 1151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [652 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-21 13:06:58,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741 states. [2021-12-21 13:06:58,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741 to 606. [2021-12-21 13:06:58,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 606 states, 447 states have (on average 1.5078299776286352) internal successors, (674), 467 states have internal predecessors, (674), 115 states have call successors, (115), 44 states have call predecessors, (115), 43 states have return successors, (112), 111 states have call predecessors, (112), 112 states have call successors, (112) [2021-12-21 13:06:58,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 606 states to 606 states and 901 transitions. [2021-12-21 13:06:58,686 INFO L78 Accepts]: Start accepts. Automaton has 606 states and 901 transitions. Word has length 152 [2021-12-21 13:06:58,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:06:58,687 INFO L470 AbstractCegarLoop]: Abstraction has 606 states and 901 transitions. [2021-12-21 13:06:58,687 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 2 states have internal predecessors, (80), 2 states have call successors, (28), 5 states have call predecessors, (28), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-21 13:06:58,687 INFO L276 IsEmpty]: Start isEmpty. Operand 606 states and 901 transitions. [2021-12-21 13:06:58,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-12-21 13:06:58,694 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:06:58,694 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:06:58,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 13:06:58,694 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:06:58,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:06:58,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1753524556, now seen corresponding path program 1 times [2021-12-21 13:06:58,695 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:06:58,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976387590] [2021-12-21 13:06:58,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:06:58,696 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:06:58,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:06:58,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 13:06:58,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:06:58,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 13:06:58,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:06:58,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-21 13:06:58,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:06:58,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 13:06:58,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:06:58,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-21 13:06:58,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:06:58,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-21 13:06:58,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:06:58,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 13:06:58,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:06:58,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-21 13:06:58,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:06:58,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 13:06:58,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:06:58,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:06:58,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:06:58,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-21 13:06:58,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:06:58,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:06:58,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:06:58,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-21 13:06:58,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:06:58,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:06:58,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:06:58,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-21 13:06:58,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:06:58,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-21 13:06:58,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:06:58,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-21 13:06:58,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:06:58,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-21 13:06:58,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:06:58,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-21 13:06:58,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:06:58,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-21 13:06:58,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:06:58,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-21 13:06:58,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:06:58,826 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-12-21 13:06:58,826 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:06:58,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976387590] [2021-12-21 13:06:58,827 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976387590] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:06:58,827 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:06:58,827 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-21 13:06:58,827 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268778312] [2021-12-21 13:06:58,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:06:58,828 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-21 13:06:58,828 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:06:58,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-21 13:06:58,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-21 13:06:58,829 INFO L87 Difference]: Start difference. First operand 606 states and 901 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (28), 5 states have call predecessors, (28), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-21 13:07:00,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:07:00,404 INFO L93 Difference]: Finished difference Result 1311 states and 1977 transitions. [2021-12-21 13:07:00,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-21 13:07:00,404 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (28), 5 states have call predecessors, (28), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 153 [2021-12-21 13:07:00,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:07:00,408 INFO L225 Difference]: With dead ends: 1311 [2021-12-21 13:07:00,408 INFO L226 Difference]: Without dead ends: 741 [2021-12-21 13:07:00,410 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2021-12-21 13:07:00,410 INFO L933 BasicCegarLoop]: 908 mSDtfsCounter, 1381 mSDsluCounter, 1929 mSDsCounter, 0 mSdLazyCounter, 2474 mSolverCounterSat, 660 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1386 SdHoareTripleChecker+Valid, 2837 SdHoareTripleChecker+Invalid, 3134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 660 IncrementalHoareTripleChecker+Valid, 2474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-21 13:07:00,411 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1386 Valid, 2837 Invalid, 3134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [660 Valid, 2474 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-21 13:07:00,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741 states. [2021-12-21 13:07:00,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741 to 606. [2021-12-21 13:07:00,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 606 states, 447 states have (on average 1.4921700223713648) internal successors, (667), 467 states have internal predecessors, (667), 115 states have call successors, (115), 44 states have call predecessors, (115), 43 states have return successors, (112), 111 states have call predecessors, (112), 112 states have call successors, (112) [2021-12-21 13:07:00,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 606 states to 606 states and 894 transitions. [2021-12-21 13:07:00,437 INFO L78 Accepts]: Start accepts. Automaton has 606 states and 894 transitions. Word has length 153 [2021-12-21 13:07:00,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:07:00,438 INFO L470 AbstractCegarLoop]: Abstraction has 606 states and 894 transitions. [2021-12-21 13:07:00,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (28), 5 states have call predecessors, (28), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-21 13:07:00,439 INFO L276 IsEmpty]: Start isEmpty. Operand 606 states and 894 transitions. [2021-12-21 13:07:00,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-12-21 13:07:00,443 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:07:00,443 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:07:00,444 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-21 13:07:00,444 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:07:00,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:07:00,444 INFO L85 PathProgramCache]: Analyzing trace with hash 669699045, now seen corresponding path program 1 times [2021-12-21 13:07:00,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:07:00,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493694788] [2021-12-21 13:07:00,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:07:00,445 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:07:00,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:00,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 13:07:00,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:00,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 13:07:00,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:00,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-21 13:07:00,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:00,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 13:07:00,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:00,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-21 13:07:00,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:00,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-21 13:07:00,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:00,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 13:07:00,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:00,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-21 13:07:00,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:00,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-21 13:07:00,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:00,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:07:00,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:00,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-21 13:07:00,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:00,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:07:00,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:00,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-21 13:07:00,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:00,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:07:00,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:00,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-21 13:07:00,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:00,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-21 13:07:00,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:00,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-21 13:07:00,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:00,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-21 13:07:00,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:00,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-21 13:07:00,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:00,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-21 13:07:00,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:00,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-21 13:07:00,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:00,565 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-12-21 13:07:00,566 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:07:00,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493694788] [2021-12-21 13:07:00,566 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493694788] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:07:00,566 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:07:00,566 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 13:07:00,566 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334393653] [2021-12-21 13:07:00,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:07:00,567 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 13:07:00,567 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:07:00,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 13:07:00,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-21 13:07:00,568 INFO L87 Difference]: Start difference. First operand 606 states and 894 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (28), 5 states have call predecessors, (28), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2021-12-21 13:07:01,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:07:01,401 INFO L93 Difference]: Finished difference Result 1317 states and 1998 transitions. [2021-12-21 13:07:01,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-21 13:07:01,401 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (28), 5 states have call predecessors, (28), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 158 [2021-12-21 13:07:01,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:07:01,405 INFO L225 Difference]: With dead ends: 1317 [2021-12-21 13:07:01,405 INFO L226 Difference]: Without dead ends: 742 [2021-12-21 13:07:01,406 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-12-21 13:07:01,407 INFO L933 BasicCegarLoop]: 904 mSDtfsCounter, 2062 mSDsluCounter, 683 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 857 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2089 SdHoareTripleChecker+Valid, 1587 SdHoareTripleChecker+Invalid, 1364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 857 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-21 13:07:01,407 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2089 Valid, 1587 Invalid, 1364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [857 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-21 13:07:01,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2021-12-21 13:07:01,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 607. [2021-12-21 13:07:01,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 607 states, 449 states have (on average 1.4810690423162582) internal successors, (665), 467 states have internal predecessors, (665), 113 states have call successors, (113), 45 states have call predecessors, (113), 44 states have return successors, (110), 109 states have call predecessors, (110), 110 states have call successors, (110) [2021-12-21 13:07:01,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 888 transitions. [2021-12-21 13:07:01,429 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 888 transitions. Word has length 158 [2021-12-21 13:07:01,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:07:01,429 INFO L470 AbstractCegarLoop]: Abstraction has 607 states and 888 transitions. [2021-12-21 13:07:01,429 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (28), 5 states have call predecessors, (28), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2021-12-21 13:07:01,430 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 888 transitions. [2021-12-21 13:07:01,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-12-21 13:07:01,431 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:07:01,432 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:07:01,432 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-21 13:07:01,432 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:07:01,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:07:01,432 INFO L85 PathProgramCache]: Analyzing trace with hash -749851592, now seen corresponding path program 1 times [2021-12-21 13:07:01,433 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:07:01,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799897342] [2021-12-21 13:07:01,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:07:01,433 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:07:01,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:01,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 13:07:01,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:01,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 13:07:01,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:01,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-21 13:07:01,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:01,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 13:07:01,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:01,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-21 13:07:01,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:01,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-21 13:07:01,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:01,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 13:07:01,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:01,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-21 13:07:01,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:01,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-21 13:07:01,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:01,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:07:01,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:01,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-21 13:07:01,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:01,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:07:01,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:01,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-21 13:07:01,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:01,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:07:01,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:01,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-21 13:07:01,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:01,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-21 13:07:01,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:01,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-21 13:07:01,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:01,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-21 13:07:01,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:01,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-21 13:07:01,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:01,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-21 13:07:01,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:01,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-21 13:07:01,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:01,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-21 13:07:01,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:01,533 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-12-21 13:07:01,533 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:07:01,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799897342] [2021-12-21 13:07:01,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799897342] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:07:01,534 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:07:01,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 13:07:01,534 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537869780] [2021-12-21 13:07:01,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:07:01,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 13:07:01,535 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:07:01,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 13:07:01,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-21 13:07:01,536 INFO L87 Difference]: Start difference. First operand 607 states and 888 transitions. Second operand has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-21 13:07:02,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:07:02,394 INFO L93 Difference]: Finished difference Result 1310 states and 1972 transitions. [2021-12-21 13:07:02,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-21 13:07:02,395 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 168 [2021-12-21 13:07:02,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:07:02,398 INFO L225 Difference]: With dead ends: 1310 [2021-12-21 13:07:02,398 INFO L226 Difference]: Without dead ends: 739 [2021-12-21 13:07:02,400 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-12-21 13:07:02,400 INFO L933 BasicCegarLoop]: 895 mSDtfsCounter, 2038 mSDsluCounter, 706 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 833 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2065 SdHoareTripleChecker+Valid, 1601 SdHoareTripleChecker+Invalid, 1330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 833 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-21 13:07:02,400 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2065 Valid, 1601 Invalid, 1330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [833 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-21 13:07:02,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2021-12-21 13:07:02,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 605. [2021-12-21 13:07:02,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 605 states, 449 states have (on average 1.4743875278396437) internal successors, (662), 465 states have internal predecessors, (662), 111 states have call successors, (111), 45 states have call predecessors, (111), 44 states have return successors, (108), 107 states have call predecessors, (108), 108 states have call successors, (108) [2021-12-21 13:07:02,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 881 transitions. [2021-12-21 13:07:02,422 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 881 transitions. Word has length 168 [2021-12-21 13:07:02,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:07:02,423 INFO L470 AbstractCegarLoop]: Abstraction has 605 states and 881 transitions. [2021-12-21 13:07:02,423 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-21 13:07:02,423 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 881 transitions. [2021-12-21 13:07:02,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2021-12-21 13:07:02,425 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:07:02,425 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:07:02,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-21 13:07:02,425 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:07:02,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:07:02,426 INFO L85 PathProgramCache]: Analyzing trace with hash -41686357, now seen corresponding path program 1 times [2021-12-21 13:07:02,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:07:02,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122764882] [2021-12-21 13:07:02,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:07:02,426 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:07:02,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:02,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 13:07:02,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:02,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 13:07:02,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:02,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-21 13:07:02,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:02,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 13:07:02,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:02,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-21 13:07:02,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:02,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-21 13:07:02,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:02,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 13:07:02,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:02,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-21 13:07:02,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:02,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 13:07:02,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:02,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:07:02,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:02,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 13:07:02,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:02,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:07:02,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:02,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 13:07:02,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:02,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:07:02,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:02,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-21 13:07:02,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:02,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-21 13:07:02,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:02,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-21 13:07:02,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:02,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-21 13:07:02,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:02,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-21 13:07:02,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:02,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-21 13:07:02,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:02,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-21 13:07:02,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:02,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-21 13:07:02,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:02,527 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-12-21 13:07:02,527 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:07:02,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122764882] [2021-12-21 13:07:02,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122764882] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:07:02,527 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:07:02,527 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 13:07:02,527 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301229014] [2021-12-21 13:07:02,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:07:02,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 13:07:02,529 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:07:02,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 13:07:02,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-21 13:07:02,530 INFO L87 Difference]: Start difference. First operand 605 states and 881 transitions. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-21 13:07:03,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:07:03,510 INFO L93 Difference]: Finished difference Result 1301 states and 1925 transitions. [2021-12-21 13:07:03,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-21 13:07:03,511 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 169 [2021-12-21 13:07:03,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:07:03,515 INFO L225 Difference]: With dead ends: 1301 [2021-12-21 13:07:03,515 INFO L226 Difference]: Without dead ends: 742 [2021-12-21 13:07:03,516 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-12-21 13:07:03,517 INFO L933 BasicCegarLoop]: 850 mSDtfsCounter, 2060 mSDsluCounter, 657 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 848 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2084 SdHoareTripleChecker+Valid, 1507 SdHoareTripleChecker+Invalid, 1344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 848 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-21 13:07:03,517 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2084 Valid, 1507 Invalid, 1344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [848 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-21 13:07:03,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2021-12-21 13:07:03,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 602. [2021-12-21 13:07:03,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 449 states have (on average 1.4498886414253898) internal successors, (651), 460 states have internal predecessors, (651), 108 states have call successors, (108), 45 states have call predecessors, (108), 44 states have return successors, (105), 104 states have call predecessors, (105), 105 states have call successors, (105) [2021-12-21 13:07:03,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 864 transitions. [2021-12-21 13:07:03,540 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 864 transitions. Word has length 169 [2021-12-21 13:07:03,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:07:03,540 INFO L470 AbstractCegarLoop]: Abstraction has 602 states and 864 transitions. [2021-12-21 13:07:03,541 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-21 13:07:03,541 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 864 transitions. [2021-12-21 13:07:03,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2021-12-21 13:07:03,543 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:07:03,543 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:07:03,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-21 13:07:03,543 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:07:03,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:07:03,544 INFO L85 PathProgramCache]: Analyzing trace with hash -1079378543, now seen corresponding path program 1 times [2021-12-21 13:07:03,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:07:03,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769589942] [2021-12-21 13:07:03,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:07:03,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:07:03,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:03,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 13:07:03,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:03,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 13:07:03,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:03,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-21 13:07:03,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:03,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 13:07:03,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:03,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-21 13:07:03,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:03,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-21 13:07:03,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:03,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 13:07:03,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:03,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-21 13:07:03,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:03,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 13:07:03,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:03,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:07:03,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:03,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-21 13:07:03,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:03,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-21 13:07:03,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:03,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:07:03,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:03,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-21 13:07:03,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:03,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-21 13:07:03,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:03,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:07:03,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:03,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-21 13:07:03,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:03,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-21 13:07:03,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:03,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-21 13:07:03,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:03,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-21 13:07:03,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:03,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-21 13:07:03,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:03,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-21 13:07:03,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:03,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-21 13:07:03,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:03,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-21 13:07:03,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:03,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2021-12-21 13:07:03,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:03,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-21 13:07:03,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:03,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-21 13:07:03,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:03,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-21 13:07:03,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:03,723 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2021-12-21 13:07:03,723 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:07:03,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769589942] [2021-12-21 13:07:03,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769589942] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 13:07:03,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [233324690] [2021-12-21 13:07:03,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:07:03,724 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 13:07:03,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 13:07:03,725 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) [2021-12-21 13:07:03,726 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-21 13:07:04,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:04,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 1672 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-21 13:07:04,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 13:07:04,321 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2021-12-21 13:07:04,321 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 13:07:04,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [233324690] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:07:04,322 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-21 13:07:04,322 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 13 [2021-12-21 13:07:04,322 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161471254] [2021-12-21 13:07:04,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:07:04,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 13:07:04,323 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:07:04,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 13:07:04,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2021-12-21 13:07:04,323 INFO L87 Difference]: Start difference. First operand 602 states and 864 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-21 13:07:04,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:07:04,347 INFO L93 Difference]: Finished difference Result 939 states and 1329 transitions. [2021-12-21 13:07:04,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 13:07:04,347 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 208 [2021-12-21 13:07:04,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:07:04,350 INFO L225 Difference]: With dead ends: 939 [2021-12-21 13:07:04,350 INFO L226 Difference]: Without dead ends: 605 [2021-12-21 13:07:04,351 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2021-12-21 13:07:04,351 INFO L933 BasicCegarLoop]: 860 mSDtfsCounter, 1 mSDsluCounter, 858 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1718 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 13:07:04,352 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 1718 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 13:07:04,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2021-12-21 13:07:04,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 604. [2021-12-21 13:07:04,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 604 states, 451 states have (on average 1.4478935698447895) internal successors, (653), 462 states have internal predecessors, (653), 108 states have call successors, (108), 45 states have call predecessors, (108), 44 states have return successors, (105), 104 states have call predecessors, (105), 105 states have call successors, (105) [2021-12-21 13:07:04,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 866 transitions. [2021-12-21 13:07:04,371 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 866 transitions. Word has length 208 [2021-12-21 13:07:04,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:07:04,371 INFO L470 AbstractCegarLoop]: Abstraction has 604 states and 866 transitions. [2021-12-21 13:07:04,371 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-21 13:07:04,371 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 866 transitions. [2021-12-21 13:07:04,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2021-12-21 13:07:04,373 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:07:04,373 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:07:04,392 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-21 13:07:04,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-12-21 13:07:04,592 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:07:04,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:07:04,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1164905097, now seen corresponding path program 1 times [2021-12-21 13:07:04,593 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:07:04,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646953359] [2021-12-21 13:07:04,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:07:04,593 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:07:04,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:04,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 13:07:04,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:04,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 13:07:04,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:04,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-21 13:07:04,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:04,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 13:07:04,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:04,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-21 13:07:04,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:04,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-21 13:07:04,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:04,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 13:07:04,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:04,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-21 13:07:04,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:04,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 13:07:04,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:04,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:07:04,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:04,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-21 13:07:04,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:04,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-21 13:07:04,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:04,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:07:04,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:04,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-21 13:07:04,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:04,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-21 13:07:04,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:04,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:07:04,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:04,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-21 13:07:04,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:04,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-21 13:07:04,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:04,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-21 13:07:04,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:04,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-21 13:07:04,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:04,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-21 13:07:04,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:04,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-21 13:07:04,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:04,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-21 13:07:04,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:04,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-21 13:07:04,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:04,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-21 13:07:04,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:04,727 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2021-12-21 13:07:04,727 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:07:04,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646953359] [2021-12-21 13:07:04,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646953359] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 13:07:04,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2049730198] [2021-12-21 13:07:04,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:07:04,727 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 13:07:04,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 13:07:04,729 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) [2021-12-21 13:07:04,730 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-21 13:07:05,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:05,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 1601 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-21 13:07:05,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 13:07:05,304 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-12-21 13:07:05,304 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 13:07:05,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2049730198] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:07:05,305 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-21 13:07:05,305 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 13 [2021-12-21 13:07:05,305 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172678386] [2021-12-21 13:07:05,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:07:05,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 13:07:05,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:07:05,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 13:07:05,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2021-12-21 13:07:05,306 INFO L87 Difference]: Start difference. First operand 604 states and 866 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-21 13:07:05,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:07:05,334 INFO L93 Difference]: Finished difference Result 1228 states and 1793 transitions. [2021-12-21 13:07:05,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 13:07:05,334 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 195 [2021-12-21 13:07:05,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:07:05,337 INFO L225 Difference]: With dead ends: 1228 [2021-12-21 13:07:05,337 INFO L226 Difference]: Without dead ends: 702 [2021-12-21 13:07:05,339 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2021-12-21 13:07:05,339 INFO L933 BasicCegarLoop]: 884 mSDtfsCounter, 165 mSDsluCounter, 814 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 1698 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 13:07:05,339 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 1698 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 13:07:05,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2021-12-21 13:07:05,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 694. [2021-12-21 13:07:05,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 527 states have (on average 1.462998102466793) internal successors, (771), 538 states have internal predecessors, (771), 122 states have call successors, (122), 45 states have call predecessors, (122), 44 states have return successors, (119), 118 states have call predecessors, (119), 119 states have call successors, (119) [2021-12-21 13:07:05,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 1012 transitions. [2021-12-21 13:07:05,362 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 1012 transitions. Word has length 195 [2021-12-21 13:07:05,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:07:05,363 INFO L470 AbstractCegarLoop]: Abstraction has 694 states and 1012 transitions. [2021-12-21 13:07:05,363 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-21 13:07:05,363 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 1012 transitions. [2021-12-21 13:07:05,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2021-12-21 13:07:05,365 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:07:05,366 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:07:05,384 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-21 13:07:05,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-12-21 13:07:05,584 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:07:05,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:07:05,585 INFO L85 PathProgramCache]: Analyzing trace with hash -606111174, now seen corresponding path program 1 times [2021-12-21 13:07:05,585 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:07:05,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494957924] [2021-12-21 13:07:05,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:07:05,585 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:07:05,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:05,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 13:07:05,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:05,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 13:07:05,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:05,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-21 13:07:05,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:05,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 13:07:05,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:05,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-21 13:07:05,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:05,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-21 13:07:05,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:05,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 13:07:05,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:05,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-21 13:07:05,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:05,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 13:07:05,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:05,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:07:05,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:05,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-21 13:07:05,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:05,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-21 13:07:05,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:05,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:07:05,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:05,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-21 13:07:05,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:05,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-21 13:07:05,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:05,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:07:05,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:05,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-21 13:07:05,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:05,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-21 13:07:05,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:05,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-21 13:07:05,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:05,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-21 13:07:05,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:05,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-21 13:07:05,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:05,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-21 13:07:05,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:05,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-21 13:07:05,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:05,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-21 13:07:05,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:05,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-21 13:07:05,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:05,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-21 13:07:05,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:05,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-21 13:07:05,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:05,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-21 13:07:05,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:05,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-12-21 13:07:05,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:05,739 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2021-12-21 13:07:05,739 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:07:05,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494957924] [2021-12-21 13:07:05,740 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494957924] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 13:07:05,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1383826263] [2021-12-21 13:07:05,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:07:05,740 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 13:07:05,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 13:07:05,766 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) [2021-12-21 13:07:05,767 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-21 13:07:06,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:06,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 1725 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-21 13:07:06,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 13:07:06,472 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2021-12-21 13:07:06,472 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 13:07:06,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1383826263] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:07:06,473 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-21 13:07:06,473 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 13 [2021-12-21 13:07:06,473 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523565347] [2021-12-21 13:07:06,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:07:06,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 13:07:06,474 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:07:06,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 13:07:06,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2021-12-21 13:07:06,474 INFO L87 Difference]: Start difference. First operand 694 states and 1012 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 3 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2021-12-21 13:07:06,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:07:06,538 INFO L93 Difference]: Finished difference Result 2007 states and 2977 transitions. [2021-12-21 13:07:06,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 13:07:06,539 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 3 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 224 [2021-12-21 13:07:06,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:07:06,544 INFO L225 Difference]: With dead ends: 2007 [2021-12-21 13:07:06,544 INFO L226 Difference]: Without dead ends: 1342 [2021-12-21 13:07:06,546 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2021-12-21 13:07:06,547 INFO L933 BasicCegarLoop]: 987 mSDtfsCounter, 726 mSDsluCounter, 832 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 726 SdHoareTripleChecker+Valid, 1819 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 13:07:06,547 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [726 Valid, 1819 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 13:07:06,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1342 states. [2021-12-21 13:07:06,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1342 to 1338. [2021-12-21 13:07:06,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1338 states, 1027 states have (on average 1.4673807205452776) internal successors, (1507), 1043 states have internal predecessors, (1507), 223 states have call successors, (223), 88 states have call predecessors, (223), 87 states have return successors, (235), 219 states have call predecessors, (235), 219 states have call successors, (235) [2021-12-21 13:07:06,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1338 states to 1338 states and 1965 transitions. [2021-12-21 13:07:06,598 INFO L78 Accepts]: Start accepts. Automaton has 1338 states and 1965 transitions. Word has length 224 [2021-12-21 13:07:06,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:07:06,599 INFO L470 AbstractCegarLoop]: Abstraction has 1338 states and 1965 transitions. [2021-12-21 13:07:06,599 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 3 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2021-12-21 13:07:06,599 INFO L276 IsEmpty]: Start isEmpty. Operand 1338 states and 1965 transitions. [2021-12-21 13:07:06,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2021-12-21 13:07:06,602 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:07:06,602 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:07:06,622 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-21 13:07:06,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 13:07:06,822 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:07:06,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:07:06,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1967193169, now seen corresponding path program 1 times [2021-12-21 13:07:06,822 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:07:06,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587939139] [2021-12-21 13:07:06,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:07:06,822 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:07:06,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:06,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 13:07:06,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:06,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 13:07:06,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:06,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-21 13:07:06,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:06,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 13:07:06,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:06,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-21 13:07:06,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:06,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-21 13:07:06,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:06,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 13:07:06,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:06,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-21 13:07:06,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:06,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 13:07:06,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:06,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:07:06,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:06,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-21 13:07:06,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:06,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-21 13:07:06,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:06,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:07:06,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:06,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-21 13:07:06,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:06,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-21 13:07:06,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:06,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:07:06,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:06,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-21 13:07:06,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:06,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-21 13:07:06,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:06,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-21 13:07:06,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:06,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-21 13:07:06,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:06,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-21 13:07:06,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:06,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-21 13:07:06,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:06,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-21 13:07:06,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:06,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-21 13:07:06,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:06,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-21 13:07:06,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:06,979 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2021-12-21 13:07:06,979 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:07:06,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587939139] [2021-12-21 13:07:06,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587939139] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 13:07:06,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [212965887] [2021-12-21 13:07:06,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:07:06,980 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 13:07:06,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 13:07:06,981 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-21 13:07:06,982 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-21 13:07:07,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:07,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 1608 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-21 13:07:07,271 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 13:07:07,589 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2021-12-21 13:07:07,589 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 13:07:07,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [212965887] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:07:07,589 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-21 13:07:07,590 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [12] total 18 [2021-12-21 13:07:07,590 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013377983] [2021-12-21 13:07:07,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:07:07,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-21 13:07:07,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:07:07,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-21 13:07:07,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-12-21 13:07:07,591 INFO L87 Difference]: Start difference. First operand 1338 states and 1965 transitions. Second operand has 8 states, 6 states have (on average 19.666666666666668) internal successors, (118), 8 states have internal predecessors, (118), 4 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (25), 3 states have call predecessors, (25), 4 states have call successors, (25) [2021-12-21 13:07:07,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:07:07,762 INFO L93 Difference]: Finished difference Result 2597 states and 3841 transitions. [2021-12-21 13:07:07,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-21 13:07:07,763 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 19.666666666666668) internal successors, (118), 8 states have internal predecessors, (118), 4 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (25), 3 states have call predecessors, (25), 4 states have call successors, (25) Word has length 196 [2021-12-21 13:07:07,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:07:07,768 INFO L225 Difference]: With dead ends: 2597 [2021-12-21 13:07:07,768 INFO L226 Difference]: Without dead ends: 1342 [2021-12-21 13:07:07,770 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2021-12-21 13:07:07,771 INFO L933 BasicCegarLoop]: 851 mSDtfsCounter, 363 mSDsluCounter, 4697 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 5548 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 13:07:07,771 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [365 Valid, 5548 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 13:07:07,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1342 states. [2021-12-21 13:07:07,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1342 to 1342. [2021-12-21 13:07:07,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1342 states, 1029 states have (on average 1.466472303206997) internal successors, (1509), 1047 states have internal predecessors, (1509), 223 states have call successors, (223), 88 states have call predecessors, (223), 89 states have return successors, (239), 219 states have call predecessors, (239), 219 states have call successors, (239) [2021-12-21 13:07:07,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1342 states to 1342 states and 1971 transitions. [2021-12-21 13:07:07,818 INFO L78 Accepts]: Start accepts. Automaton has 1342 states and 1971 transitions. Word has length 196 [2021-12-21 13:07:07,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:07:07,818 INFO L470 AbstractCegarLoop]: Abstraction has 1342 states and 1971 transitions. [2021-12-21 13:07:07,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 19.666666666666668) internal successors, (118), 8 states have internal predecessors, (118), 4 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (25), 3 states have call predecessors, (25), 4 states have call successors, (25) [2021-12-21 13:07:07,818 INFO L276 IsEmpty]: Start isEmpty. Operand 1342 states and 1971 transitions. [2021-12-21 13:07:07,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2021-12-21 13:07:07,821 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:07:07,822 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:07:07,841 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-21 13:07:08,040 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 13:07:08,041 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:07:08,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:07:08,041 INFO L85 PathProgramCache]: Analyzing trace with hash -276167897, now seen corresponding path program 1 times [2021-12-21 13:07:08,041 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:07:08,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266388283] [2021-12-21 13:07:08,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:07:08,041 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:07:08,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:08,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 13:07:08,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:08,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 13:07:08,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:08,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-21 13:07:08,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:08,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 13:07:08,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:08,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-21 13:07:08,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:08,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-21 13:07:08,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:08,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 13:07:08,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:08,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-21 13:07:08,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:08,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 13:07:08,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:08,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:07:08,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:08,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-21 13:07:08,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:08,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-21 13:07:08,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:08,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:07:08,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:08,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-21 13:07:08,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:08,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-21 13:07:08,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:08,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:07:08,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:08,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-21 13:07:08,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:08,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-21 13:07:08,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:08,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-21 13:07:08,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:08,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-21 13:07:08,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:08,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-21 13:07:08,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:08,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-21 13:07:08,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:08,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-21 13:07:08,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:08,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-21 13:07:08,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:08,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-21 13:07:08,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:08,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-21 13:07:08,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:08,268 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2021-12-21 13:07:08,268 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:07:08,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266388283] [2021-12-21 13:07:08,269 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266388283] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 13:07:08,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1586628693] [2021-12-21 13:07:08,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:07:08,269 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 13:07:08,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 13:07:08,276 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-21 13:07:08,277 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-21 13:07:08,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:08,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 1639 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-21 13:07:08,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 13:07:08,828 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-12-21 13:07:08,828 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 13:07:08,828 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1586628693] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:07:08,828 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-21 13:07:08,828 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [13] total 14 [2021-12-21 13:07:08,828 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468290230] [2021-12-21 13:07:08,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:07:08,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 13:07:08,829 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:07:08,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 13:07:08,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2021-12-21 13:07:08,829 INFO L87 Difference]: Start difference. First operand 1342 states and 1971 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 3 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2021-12-21 13:07:08,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:07:08,918 INFO L93 Difference]: Finished difference Result 3236 states and 4763 transitions. [2021-12-21 13:07:08,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 13:07:08,919 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 3 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 204 [2021-12-21 13:07:08,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:07:08,927 INFO L225 Difference]: With dead ends: 3236 [2021-12-21 13:07:08,927 INFO L226 Difference]: Without dead ends: 2607 [2021-12-21 13:07:08,929 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2021-12-21 13:07:08,930 INFO L933 BasicCegarLoop]: 963 mSDtfsCounter, 721 mSDsluCounter, 826 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 721 SdHoareTripleChecker+Valid, 1789 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 13:07:08,930 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [721 Valid, 1789 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 13:07:08,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2607 states. [2021-12-21 13:07:09,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2607 to 2603. [2021-12-21 13:07:09,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2603 states, 2009 states have (on average 1.4708810353409656) internal successors, (2955), 2038 states have internal predecessors, (2955), 420 states have call successors, (420), 170 states have call predecessors, (420), 173 states have return successors, (476), 414 states have call predecessors, (476), 414 states have call successors, (476) [2021-12-21 13:07:09,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2603 states to 2603 states and 3851 transitions. [2021-12-21 13:07:09,016 INFO L78 Accepts]: Start accepts. Automaton has 2603 states and 3851 transitions. Word has length 204 [2021-12-21 13:07:09,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:07:09,016 INFO L470 AbstractCegarLoop]: Abstraction has 2603 states and 3851 transitions. [2021-12-21 13:07:09,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 3 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2021-12-21 13:07:09,017 INFO L276 IsEmpty]: Start isEmpty. Operand 2603 states and 3851 transitions. [2021-12-21 13:07:09,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2021-12-21 13:07:09,022 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:07:09,022 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:07:09,057 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-12-21 13:07:09,240 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-12-21 13:07:09,240 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:07:09,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:07:09,241 INFO L85 PathProgramCache]: Analyzing trace with hash -2122072, now seen corresponding path program 1 times [2021-12-21 13:07:09,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:07:09,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888634840] [2021-12-21 13:07:09,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:07:09,241 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:07:09,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:09,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 13:07:09,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:09,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 13:07:09,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:09,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-21 13:07:09,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:09,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 13:07:09,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:09,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-21 13:07:09,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:09,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-21 13:07:09,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:09,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 13:07:09,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:09,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-21 13:07:09,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:09,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 13:07:09,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:09,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:07:09,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:09,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-21 13:07:09,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:09,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-21 13:07:09,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:09,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:07:09,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:09,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-21 13:07:09,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:09,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-21 13:07:09,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:09,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:07:09,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:09,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-21 13:07:09,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:09,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-21 13:07:09,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:09,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-21 13:07:09,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:09,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-21 13:07:09,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:09,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-21 13:07:09,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:09,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-21 13:07:09,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:09,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-21 13:07:09,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:09,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-21 13:07:09,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:09,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-21 13:07:09,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:09,401 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2021-12-21 13:07:09,402 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:07:09,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888634840] [2021-12-21 13:07:09,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888634840] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 13:07:09,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1535274162] [2021-12-21 13:07:09,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:07:09,402 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 13:07:09,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 13:07:09,403 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-21 13:07:09,404 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-21 13:07:09,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:09,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 1609 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-21 13:07:09,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 13:07:09,984 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2021-12-21 13:07:09,984 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 13:07:09,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1535274162] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:07:09,984 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-21 13:07:09,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [13] total 17 [2021-12-21 13:07:09,985 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647716557] [2021-12-21 13:07:09,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:07:09,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 13:07:09,985 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:07:09,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 13:07:09,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=238, Unknown=0, NotChecked=0, Total=272 [2021-12-21 13:07:09,986 INFO L87 Difference]: Start difference. First operand 2603 states and 3851 transitions. Second operand has 6 states, 5 states have (on average 24.0) internal successors, (120), 6 states have internal predecessors, (120), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-12-21 13:07:10,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:07:10,147 INFO L93 Difference]: Finished difference Result 5071 states and 7558 transitions. [2021-12-21 13:07:10,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-21 13:07:10,147 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 24.0) internal successors, (120), 6 states have internal predecessors, (120), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 197 [2021-12-21 13:07:10,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:07:10,159 INFO L225 Difference]: With dead ends: 5071 [2021-12-21 13:07:10,160 INFO L226 Difference]: Without dead ends: 2611 [2021-12-21 13:07:10,167 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2021-12-21 13:07:10,167 INFO L933 BasicCegarLoop]: 850 mSDtfsCounter, 361 mSDsluCounter, 2996 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 3846 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 13:07:10,167 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [361 Valid, 3846 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 13:07:10,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2611 states. [2021-12-21 13:07:10,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2611 to 2611. [2021-12-21 13:07:10,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2611 states, 2013 states have (on average 1.469945355191257) internal successors, (2959), 2046 states have internal predecessors, (2959), 420 states have call successors, (420), 170 states have call predecessors, (420), 177 states have return successors, (496), 414 states have call predecessors, (496), 414 states have call successors, (496) [2021-12-21 13:07:10,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2611 states to 2611 states and 3875 transitions. [2021-12-21 13:07:10,258 INFO L78 Accepts]: Start accepts. Automaton has 2611 states and 3875 transitions. Word has length 197 [2021-12-21 13:07:10,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:07:10,258 INFO L470 AbstractCegarLoop]: Abstraction has 2611 states and 3875 transitions. [2021-12-21 13:07:10,258 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 24.0) internal successors, (120), 6 states have internal predecessors, (120), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-12-21 13:07:10,259 INFO L276 IsEmpty]: Start isEmpty. Operand 2611 states and 3875 transitions. [2021-12-21 13:07:10,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-12-21 13:07:10,264 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:07:10,264 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:07:10,284 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-12-21 13:07:10,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 13:07:10,483 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:07:10,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:07:10,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1089287723, now seen corresponding path program 1 times [2021-12-21 13:07:10,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:07:10,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797402737] [2021-12-21 13:07:10,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:07:10,484 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:07:10,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:10,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 13:07:10,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:10,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 13:07:10,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:10,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-21 13:07:10,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:10,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 13:07:10,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:10,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-21 13:07:10,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:10,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-21 13:07:10,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:10,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 13:07:10,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:10,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-21 13:07:10,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:10,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 13:07:10,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:10,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:07:10,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:10,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-21 13:07:10,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:10,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-21 13:07:10,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:10,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:07:10,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:10,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-21 13:07:10,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:10,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-21 13:07:10,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:10,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:07:10,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:10,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-21 13:07:10,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:10,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-21 13:07:10,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:10,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-21 13:07:10,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:10,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-21 13:07:10,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:10,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-21 13:07:10,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:10,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-21 13:07:10,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:10,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-21 13:07:10,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:10,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-21 13:07:10,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:10,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-21 13:07:10,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:10,687 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2021-12-21 13:07:10,687 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:07:10,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797402737] [2021-12-21 13:07:10,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797402737] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:07:10,688 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:07:10,688 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-21 13:07:10,688 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638820335] [2021-12-21 13:07:10,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:07:10,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-21 13:07:10,689 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:07:10,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-21 13:07:10,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-21 13:07:10,689 INFO L87 Difference]: Start difference. First operand 2611 states and 3875 transitions. Second operand has 12 states, 10 states have (on average 11.6) internal successors, (116), 8 states have internal predecessors, (116), 4 states have call successors, (32), 6 states have call predecessors, (32), 3 states have return successors, (25), 3 states have call predecessors, (25), 4 states have call successors, (25) [2021-12-21 13:07:13,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:07:13,197 INFO L93 Difference]: Finished difference Result 5539 states and 8628 transitions. [2021-12-21 13:07:13,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-21 13:07:13,197 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 11.6) internal successors, (116), 8 states have internal predecessors, (116), 4 states have call successors, (32), 6 states have call predecessors, (32), 3 states have return successors, (25), 3 states have call predecessors, (25), 4 states have call successors, (25) Word has length 198 [2021-12-21 13:07:13,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:07:13,210 INFO L225 Difference]: With dead ends: 5539 [2021-12-21 13:07:13,211 INFO L226 Difference]: Without dead ends: 3127 [2021-12-21 13:07:13,216 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=478, Unknown=0, NotChecked=0, Total=600 [2021-12-21 13:07:13,216 INFO L933 BasicCegarLoop]: 874 mSDtfsCounter, 2166 mSDsluCounter, 2757 mSDsCounter, 0 mSdLazyCounter, 4469 mSolverCounterSat, 905 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2166 SdHoareTripleChecker+Valid, 3631 SdHoareTripleChecker+Invalid, 5374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 905 IncrementalHoareTripleChecker+Valid, 4469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-21 13:07:13,216 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2166 Valid, 3631 Invalid, 5374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [905 Valid, 4469 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-21 13:07:13,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3127 states. [2021-12-21 13:07:13,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3127 to 2611. [2021-12-21 13:07:13,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2611 states, 2013 states have (on average 1.469945355191257) internal successors, (2959), 2046 states have internal predecessors, (2959), 420 states have call successors, (420), 170 states have call predecessors, (420), 177 states have return successors, (492), 414 states have call predecessors, (492), 414 states have call successors, (492) [2021-12-21 13:07:13,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2611 states to 2611 states and 3871 transitions. [2021-12-21 13:07:13,373 INFO L78 Accepts]: Start accepts. Automaton has 2611 states and 3871 transitions. Word has length 198 [2021-12-21 13:07:13,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:07:13,374 INFO L470 AbstractCegarLoop]: Abstraction has 2611 states and 3871 transitions. [2021-12-21 13:07:13,374 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 11.6) internal successors, (116), 8 states have internal predecessors, (116), 4 states have call successors, (32), 6 states have call predecessors, (32), 3 states have return successors, (25), 3 states have call predecessors, (25), 4 states have call successors, (25) [2021-12-21 13:07:13,374 INFO L276 IsEmpty]: Start isEmpty. Operand 2611 states and 3871 transitions. [2021-12-21 13:07:13,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-12-21 13:07:13,379 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:07:13,380 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:07:13,380 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-21 13:07:13,380 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:07:13,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:07:13,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1061799578, now seen corresponding path program 2 times [2021-12-21 13:07:13,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:07:13,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870960448] [2021-12-21 13:07:13,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:07:13,381 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:07:13,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:13,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 13:07:13,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:13,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 13:07:13,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:13,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-21 13:07:13,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:13,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 13:07:13,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:13,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-21 13:07:13,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:13,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-21 13:07:13,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:13,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 13:07:13,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:13,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-21 13:07:13,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:13,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 13:07:13,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:13,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:07:13,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:13,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-21 13:07:13,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:13,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-21 13:07:13,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:13,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:07:13,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:13,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-21 13:07:13,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:13,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-21 13:07:13,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:13,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:07:13,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:13,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-21 13:07:13,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:13,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-21 13:07:13,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:13,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-21 13:07:13,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:13,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-21 13:07:13,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:13,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-21 13:07:13,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:13,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-21 13:07:13,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:13,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-12-21 13:07:13,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:13,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-21 13:07:13,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:13,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-21 13:07:13,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:13,523 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2021-12-21 13:07:13,523 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:07:13,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870960448] [2021-12-21 13:07:13,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870960448] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:07:13,524 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:07:13,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-21 13:07:13,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084654258] [2021-12-21 13:07:13,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:07:13,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-21 13:07:13,525 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:07:13,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-21 13:07:13,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-21 13:07:13,526 INFO L87 Difference]: Start difference. First operand 2611 states and 3871 transitions. Second operand has 12 states, 10 states have (on average 11.7) internal successors, (117), 8 states have internal predecessors, (117), 4 states have call successors, (32), 6 states have call predecessors, (32), 3 states have return successors, (25), 3 states have call predecessors, (25), 4 states have call successors, (25) [2021-12-21 13:07:15,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:07:15,807 INFO L93 Difference]: Finished difference Result 5547 states and 8640 transitions. [2021-12-21 13:07:15,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-21 13:07:15,808 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 11.7) internal successors, (117), 8 states have internal predecessors, (117), 4 states have call successors, (32), 6 states have call predecessors, (32), 3 states have return successors, (25), 3 states have call predecessors, (25), 4 states have call successors, (25) Word has length 199 [2021-12-21 13:07:15,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:07:15,820 INFO L225 Difference]: With dead ends: 5547 [2021-12-21 13:07:15,820 INFO L226 Difference]: Without dead ends: 3135 [2021-12-21 13:07:15,825 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=478, Unknown=0, NotChecked=0, Total=600 [2021-12-21 13:07:15,826 INFO L933 BasicCegarLoop]: 865 mSDtfsCounter, 2171 mSDsluCounter, 2757 mSDsCounter, 0 mSdLazyCounter, 4310 mSolverCounterSat, 925 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2171 SdHoareTripleChecker+Valid, 3622 SdHoareTripleChecker+Invalid, 5235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 925 IncrementalHoareTripleChecker+Valid, 4310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-12-21 13:07:15,826 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2171 Valid, 3622 Invalid, 5235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [925 Valid, 4310 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-12-21 13:07:15,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3135 states. [2021-12-21 13:07:15,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3135 to 2619. [2021-12-21 13:07:15,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2619 states, 2017 states have (on average 1.4690133862171542) internal successors, (2963), 2054 states have internal predecessors, (2963), 420 states have call successors, (420), 170 states have call predecessors, (420), 181 states have return successors, (500), 414 states have call predecessors, (500), 414 states have call successors, (500) [2021-12-21 13:07:16,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2619 states to 2619 states and 3883 transitions. [2021-12-21 13:07:16,007 INFO L78 Accepts]: Start accepts. Automaton has 2619 states and 3883 transitions. Word has length 199 [2021-12-21 13:07:16,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:07:16,008 INFO L470 AbstractCegarLoop]: Abstraction has 2619 states and 3883 transitions. [2021-12-21 13:07:16,008 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 11.7) internal successors, (117), 8 states have internal predecessors, (117), 4 states have call successors, (32), 6 states have call predecessors, (32), 3 states have return successors, (25), 3 states have call predecessors, (25), 4 states have call successors, (25) [2021-12-21 13:07:16,008 INFO L276 IsEmpty]: Start isEmpty. Operand 2619 states and 3883 transitions. [2021-12-21 13:07:16,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2021-12-21 13:07:16,015 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:07:16,015 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:07:16,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-21 13:07:16,015 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:07:16,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:07:16,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1908376112, now seen corresponding path program 1 times [2021-12-21 13:07:16,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:07:16,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141305753] [2021-12-21 13:07:16,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:07:16,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:07:16,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:16,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 13:07:16,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:16,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 13:07:16,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:16,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-21 13:07:16,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:16,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 13:07:16,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:16,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-21 13:07:16,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:16,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-21 13:07:16,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:16,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 13:07:16,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:16,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-21 13:07:16,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:16,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 13:07:16,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:16,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:07:16,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:16,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-21 13:07:16,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:16,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-21 13:07:16,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:16,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:07:16,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:16,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-21 13:07:16,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:16,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-21 13:07:16,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:16,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:07:16,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:16,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-21 13:07:16,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:16,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-21 13:07:16,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:16,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-21 13:07:16,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:16,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-21 13:07:16,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:16,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-21 13:07:16,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:16,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-21 13:07:16,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:16,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-21 13:07:16,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:16,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-21 13:07:16,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:16,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-21 13:07:16,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:16,164 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2021-12-21 13:07:16,165 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:07:16,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141305753] [2021-12-21 13:07:16,165 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141305753] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:07:16,165 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:07:16,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-21 13:07:16,165 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098268790] [2021-12-21 13:07:16,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:07:16,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-21 13:07:16,166 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:07:16,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-21 13:07:16,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2021-12-21 13:07:16,166 INFO L87 Difference]: Start difference. First operand 2619 states and 3883 transitions. Second operand has 13 states, 11 states have (on average 11.0) internal successors, (121), 8 states have internal predecessors, (121), 4 states have call successors, (32), 6 states have call predecessors, (32), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2021-12-21 13:07:19,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:07:19,155 INFO L93 Difference]: Finished difference Result 6427 states and 10128 transitions. [2021-12-21 13:07:19,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-21 13:07:19,156 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 11.0) internal successors, (121), 8 states have internal predecessors, (121), 4 states have call successors, (32), 6 states have call predecessors, (32), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) Word has length 200 [2021-12-21 13:07:19,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:07:19,175 INFO L225 Difference]: With dead ends: 6427 [2021-12-21 13:07:19,175 INFO L226 Difference]: Without dead ends: 4027 [2021-12-21 13:07:19,181 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=141, Invalid=561, Unknown=0, NotChecked=0, Total=702 [2021-12-21 13:07:19,182 INFO L933 BasicCegarLoop]: 1073 mSDtfsCounter, 1982 mSDsluCounter, 5444 mSDsCounter, 0 mSdLazyCounter, 5333 mSolverCounterSat, 891 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2002 SdHoareTripleChecker+Valid, 6517 SdHoareTripleChecker+Invalid, 6224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 891 IncrementalHoareTripleChecker+Valid, 5333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-12-21 13:07:19,182 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2002 Valid, 6517 Invalid, 6224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [891 Valid, 5333 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-12-21 13:07:19,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4027 states. [2021-12-21 13:07:19,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4027 to 2639. [2021-12-21 13:07:19,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2639 states, 2025 states have (on average 1.4671604938271605) internal successors, (2971), 2066 states have internal predecessors, (2971), 424 states have call successors, (424), 170 states have call predecessors, (424), 189 states have return successors, (520), 422 states have call predecessors, (520), 418 states have call successors, (520) [2021-12-21 13:07:19,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2639 states to 2639 states and 3915 transitions. [2021-12-21 13:07:19,343 INFO L78 Accepts]: Start accepts. Automaton has 2639 states and 3915 transitions. Word has length 200 [2021-12-21 13:07:19,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:07:19,344 INFO L470 AbstractCegarLoop]: Abstraction has 2639 states and 3915 transitions. [2021-12-21 13:07:19,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 11.0) internal successors, (121), 8 states have internal predecessors, (121), 4 states have call successors, (32), 6 states have call predecessors, (32), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2021-12-21 13:07:19,344 INFO L276 IsEmpty]: Start isEmpty. Operand 2639 states and 3915 transitions. [2021-12-21 13:07:19,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2021-12-21 13:07:19,350 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:07:19,350 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:07:19,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-21 13:07:19,350 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:07:19,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:07:19,351 INFO L85 PathProgramCache]: Analyzing trace with hash -10879346, now seen corresponding path program 1 times [2021-12-21 13:07:19,351 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:07:19,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673839220] [2021-12-21 13:07:19,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:07:19,351 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:07:19,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:19,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 13:07:19,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:19,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 13:07:19,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:19,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-21 13:07:19,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:19,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 13:07:19,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:19,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-21 13:07:19,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:19,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-21 13:07:19,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:19,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 13:07:19,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:19,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-21 13:07:19,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:19,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 13:07:19,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:19,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:07:19,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:19,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-21 13:07:19,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:19,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-21 13:07:19,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:19,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:07:19,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:19,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-21 13:07:19,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:19,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-21 13:07:19,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:19,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:07:19,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:19,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-21 13:07:19,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:19,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-21 13:07:19,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:19,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-21 13:07:19,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:19,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-21 13:07:19,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:19,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-21 13:07:19,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:19,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-21 13:07:19,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:19,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-21 13:07:19,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:19,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-21 13:07:19,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:19,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-21 13:07:19,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:19,535 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2021-12-21 13:07:19,535 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:07:19,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673839220] [2021-12-21 13:07:19,536 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673839220] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:07:19,536 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:07:19,536 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-21 13:07:19,536 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906771426] [2021-12-21 13:07:19,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:07:19,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-21 13:07:19,536 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:07:19,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-21 13:07:19,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-21 13:07:19,537 INFO L87 Difference]: Start difference. First operand 2639 states and 3915 transitions. Second operand has 12 states, 10 states have (on average 11.8) internal successors, (118), 8 states have internal predecessors, (118), 4 states have call successors, (32), 6 states have call predecessors, (32), 3 states have return successors, (25), 3 states have call predecessors, (25), 4 states have call successors, (25) [2021-12-21 13:07:21,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:07:21,837 INFO L93 Difference]: Finished difference Result 5539 states and 8624 transitions. [2021-12-21 13:07:21,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-21 13:07:21,838 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 11.8) internal successors, (118), 8 states have internal predecessors, (118), 4 states have call successors, (32), 6 states have call predecessors, (32), 3 states have return successors, (25), 3 states have call predecessors, (25), 4 states have call successors, (25) Word has length 200 [2021-12-21 13:07:21,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:07:21,849 INFO L225 Difference]: With dead ends: 5539 [2021-12-21 13:07:21,849 INFO L226 Difference]: Without dead ends: 3127 [2021-12-21 13:07:21,854 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=146, Invalid=504, Unknown=0, NotChecked=0, Total=650 [2021-12-21 13:07:21,854 INFO L933 BasicCegarLoop]: 861 mSDtfsCounter, 2186 mSDsluCounter, 2739 mSDsCounter, 0 mSdLazyCounter, 4366 mSolverCounterSat, 926 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2186 SdHoareTripleChecker+Valid, 3600 SdHoareTripleChecker+Invalid, 5292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 926 IncrementalHoareTripleChecker+Valid, 4366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-12-21 13:07:21,854 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2186 Valid, 3600 Invalid, 5292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [926 Valid, 4366 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-12-21 13:07:21,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3127 states. [2021-12-21 13:07:21,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3127 to 2619. [2021-12-21 13:07:21,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2619 states, 2017 states have (on average 1.4690133862171542) internal successors, (2963), 2054 states have internal predecessors, (2963), 420 states have call successors, (420), 170 states have call predecessors, (420), 181 states have return successors, (496), 414 states have call predecessors, (496), 414 states have call successors, (496) [2021-12-21 13:07:22,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2619 states to 2619 states and 3879 transitions. [2021-12-21 13:07:22,001 INFO L78 Accepts]: Start accepts. Automaton has 2619 states and 3879 transitions. Word has length 200 [2021-12-21 13:07:22,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:07:22,001 INFO L470 AbstractCegarLoop]: Abstraction has 2619 states and 3879 transitions. [2021-12-21 13:07:22,002 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 11.8) internal successors, (118), 8 states have internal predecessors, (118), 4 states have call successors, (32), 6 states have call predecessors, (32), 3 states have return successors, (25), 3 states have call predecessors, (25), 4 states have call successors, (25) [2021-12-21 13:07:22,002 INFO L276 IsEmpty]: Start isEmpty. Operand 2619 states and 3879 transitions. [2021-12-21 13:07:22,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2021-12-21 13:07:22,008 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:07:22,008 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:07:22,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-21 13:07:22,009 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:07:22,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:07:22,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1677483331, now seen corresponding path program 2 times [2021-12-21 13:07:22,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:07:22,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303605513] [2021-12-21 13:07:22,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:07:22,010 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:07:22,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:22,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 13:07:22,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:22,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 13:07:22,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:22,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-21 13:07:22,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:22,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 13:07:22,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:22,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-21 13:07:22,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:22,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-21 13:07:22,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:22,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 13:07:22,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:22,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-21 13:07:22,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:22,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 13:07:22,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:22,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:07:22,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:22,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-21 13:07:22,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:22,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-21 13:07:22,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:22,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:07:22,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:22,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-21 13:07:22,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:22,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-21 13:07:22,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:22,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:07:22,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:22,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-21 13:07:22,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:22,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-21 13:07:22,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:22,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-21 13:07:22,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:22,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-21 13:07:22,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:22,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-21 13:07:22,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:22,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-21 13:07:22,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:22,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2021-12-21 13:07:22,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:22,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-21 13:07:22,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:22,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-21 13:07:22,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:22,184 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2021-12-21 13:07:22,184 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:07:22,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303605513] [2021-12-21 13:07:22,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303605513] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:07:22,184 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:07:22,184 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-21 13:07:22,185 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400900877] [2021-12-21 13:07:22,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:07:22,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-21 13:07:22,185 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:07:22,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-21 13:07:22,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2021-12-21 13:07:22,186 INFO L87 Difference]: Start difference. First operand 2619 states and 3879 transitions. Second operand has 13 states, 11 states have (on average 11.090909090909092) internal successors, (122), 8 states have internal predecessors, (122), 4 states have call successors, (32), 6 states have call predecessors, (32), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2021-12-21 13:07:24,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:07:24,631 INFO L93 Difference]: Finished difference Result 5535 states and 8628 transitions. [2021-12-21 13:07:24,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-21 13:07:24,632 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 11.090909090909092) internal successors, (122), 8 states have internal predecessors, (122), 4 states have call successors, (32), 6 states have call predecessors, (32), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) Word has length 201 [2021-12-21 13:07:24,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:07:24,641 INFO L225 Difference]: With dead ends: 5535 [2021-12-21 13:07:24,641 INFO L226 Difference]: Without dead ends: 3135 [2021-12-21 13:07:24,645 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=141, Invalid=561, Unknown=0, NotChecked=0, Total=702 [2021-12-21 13:07:24,645 INFO L933 BasicCegarLoop]: 840 mSDtfsCounter, 2009 mSDsluCounter, 3258 mSDsCounter, 0 mSdLazyCounter, 4982 mSolverCounterSat, 887 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2029 SdHoareTripleChecker+Valid, 4098 SdHoareTripleChecker+Invalid, 5869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 887 IncrementalHoareTripleChecker+Valid, 4982 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-21 13:07:24,646 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2029 Valid, 4098 Invalid, 5869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [887 Valid, 4982 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-21 13:07:24,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3135 states. [2021-12-21 13:07:24,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3135 to 2627. [2021-12-21 13:07:24,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2627 states, 2021 states have (on average 1.4680851063829787) internal successors, (2967), 2062 states have internal predecessors, (2967), 420 states have call successors, (420), 170 states have call predecessors, (420), 185 states have return successors, (516), 414 states have call predecessors, (516), 414 states have call successors, (516) [2021-12-21 13:07:24,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2627 states to 2627 states and 3903 transitions. [2021-12-21 13:07:24,755 INFO L78 Accepts]: Start accepts. Automaton has 2627 states and 3903 transitions. Word has length 201 [2021-12-21 13:07:24,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:07:24,755 INFO L470 AbstractCegarLoop]: Abstraction has 2627 states and 3903 transitions. [2021-12-21 13:07:24,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 11.090909090909092) internal successors, (122), 8 states have internal predecessors, (122), 4 states have call successors, (32), 6 states have call predecessors, (32), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2021-12-21 13:07:24,756 INFO L276 IsEmpty]: Start isEmpty. Operand 2627 states and 3903 transitions. [2021-12-21 13:07:24,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2021-12-21 13:07:24,762 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:07:24,762 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:07:24,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-21 13:07:24,763 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:07:24,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:07:24,763 INFO L85 PathProgramCache]: Analyzing trace with hash -1038796107, now seen corresponding path program 1 times [2021-12-21 13:07:24,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:07:24,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073352507] [2021-12-21 13:07:24,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:07:24,763 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:07:24,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:24,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 13:07:24,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:24,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 13:07:24,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:24,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-21 13:07:24,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:24,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 13:07:24,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:24,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-21 13:07:24,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:24,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-21 13:07:24,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:24,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 13:07:24,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:24,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-21 13:07:24,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:24,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 13:07:24,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:24,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:07:24,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:24,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-21 13:07:24,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:24,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-21 13:07:24,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:24,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:07:24,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:24,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-21 13:07:24,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:24,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-21 13:07:24,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:24,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:07:24,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:24,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-21 13:07:24,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:24,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-21 13:07:24,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:24,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-21 13:07:24,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:24,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-21 13:07:24,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:24,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-21 13:07:24,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:24,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-21 13:07:24,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:24,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-21 13:07:24,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:24,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-21 13:07:24,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:24,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-21 13:07:24,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:24,869 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-12-21 13:07:24,869 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:07:24,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073352507] [2021-12-21 13:07:24,869 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073352507] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 13:07:24,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [4552253] [2021-12-21 13:07:24,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:07:24,870 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 13:07:24,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 13:07:24,870 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-21 13:07:24,872 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-21 13:07:25,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:25,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 1614 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-21 13:07:25,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 13:07:25,450 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-12-21 13:07:25,450 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-21 13:07:25,761 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-12-21 13:07:25,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [4552253] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-21 13:07:25,761 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-21 13:07:25,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2021-12-21 13:07:25,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917500880] [2021-12-21 13:07:25,761 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-21 13:07:25,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-21 13:07:25,763 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:07:25,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-21 13:07:25,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-12-21 13:07:25,763 INFO L87 Difference]: Start difference. First operand 2627 states and 3903 transitions. Second operand has 11 states, 11 states have (on average 14.818181818181818) internal successors, (163), 7 states have internal predecessors, (163), 2 states have call successors, (52), 6 states have call predecessors, (52), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2021-12-21 13:07:27,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:07:27,886 INFO L93 Difference]: Finished difference Result 6631 states and 10620 transitions. [2021-12-21 13:07:27,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-21 13:07:27,887 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 14.818181818181818) internal successors, (163), 7 states have internal predecessors, (163), 2 states have call successors, (52), 6 states have call predecessors, (52), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 202 [2021-12-21 13:07:27,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:07:27,902 INFO L225 Difference]: With dead ends: 6631 [2021-12-21 13:07:27,902 INFO L226 Difference]: Without dead ends: 5387 [2021-12-21 13:07:27,906 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 466 GetRequests, 451 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2021-12-21 13:07:27,906 INFO L933 BasicCegarLoop]: 968 mSDtfsCounter, 2467 mSDsluCounter, 2302 mSDsCounter, 0 mSdLazyCounter, 2201 mSolverCounterSat, 1061 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2521 SdHoareTripleChecker+Valid, 3270 SdHoareTripleChecker+Invalid, 3262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1061 IncrementalHoareTripleChecker+Valid, 2201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-12-21 13:07:27,907 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2521 Valid, 3270 Invalid, 3262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1061 Valid, 2201 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-12-21 13:07:27,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5387 states. [2021-12-21 13:07:28,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5387 to 4783. [2021-12-21 13:07:28,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4783 states, 3861 states have (on average 1.5185185185185186) internal successors, (5863), 3902 states have internal predecessors, (5863), 736 states have call successors, (736), 170 states have call predecessors, (736), 185 states have return successors, (872), 730 states have call predecessors, (872), 730 states have call successors, (872) [2021-12-21 13:07:28,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4783 states to 4783 states and 7471 transitions. [2021-12-21 13:07:28,099 INFO L78 Accepts]: Start accepts. Automaton has 4783 states and 7471 transitions. Word has length 202 [2021-12-21 13:07:28,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:07:28,099 INFO L470 AbstractCegarLoop]: Abstraction has 4783 states and 7471 transitions. [2021-12-21 13:07:28,099 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 14.818181818181818) internal successors, (163), 7 states have internal predecessors, (163), 2 states have call successors, (52), 6 states have call predecessors, (52), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2021-12-21 13:07:28,100 INFO L276 IsEmpty]: Start isEmpty. Operand 4783 states and 7471 transitions. [2021-12-21 13:07:28,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2021-12-21 13:07:28,112 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:07:28,112 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:07:28,146 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-12-21 13:07:28,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 13:07:28,328 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:07:28,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:07:28,329 INFO L85 PathProgramCache]: Analyzing trace with hash 594271575, now seen corresponding path program 1 times [2021-12-21 13:07:28,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:07:28,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735156537] [2021-12-21 13:07:28,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:07:28,329 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:07:28,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:28,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 13:07:28,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:28,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 13:07:28,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:28,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-21 13:07:28,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:28,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 13:07:28,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:28,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-21 13:07:28,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:28,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-21 13:07:28,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:28,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 13:07:28,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:28,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-21 13:07:28,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:28,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 13:07:28,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:28,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:07:28,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:28,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-21 13:07:28,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:28,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-21 13:07:28,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:28,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:07:28,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:28,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-21 13:07:28,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:28,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-21 13:07:28,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:28,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:07:28,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:28,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-21 13:07:28,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:28,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-21 13:07:28,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:28,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-21 13:07:28,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:28,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-21 13:07:28,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:28,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-21 13:07:28,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:28,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-12-21 13:07:28,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:28,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-21 13:07:28,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:28,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-21 13:07:28,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:28,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-21 13:07:28,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:28,480 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-12-21 13:07:28,481 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:07:28,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735156537] [2021-12-21 13:07:28,481 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735156537] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:07:28,481 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:07:28,481 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-21 13:07:28,481 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154041980] [2021-12-21 13:07:28,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:07:28,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-21 13:07:28,482 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:07:28,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 13:07:28,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-21 13:07:28,483 INFO L87 Difference]: Start difference. First operand 4783 states and 7471 transitions. Second operand has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-21 13:07:30,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:07:30,290 INFO L93 Difference]: Finished difference Result 11659 states and 18916 transitions. [2021-12-21 13:07:30,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-21 13:07:30,290 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 206 [2021-12-21 13:07:30,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:07:30,333 INFO L225 Difference]: With dead ends: 11659 [2021-12-21 13:07:30,342 INFO L226 Difference]: Without dead ends: 7327 [2021-12-21 13:07:30,350 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-21 13:07:30,367 INFO L933 BasicCegarLoop]: 910 mSDtfsCounter, 1983 mSDsluCounter, 1290 mSDsCounter, 0 mSdLazyCounter, 1232 mSolverCounterSat, 922 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2001 SdHoareTripleChecker+Valid, 2200 SdHoareTripleChecker+Invalid, 2154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 922 IncrementalHoareTripleChecker+Valid, 1232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-21 13:07:30,368 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2001 Valid, 2200 Invalid, 2154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [922 Valid, 1232 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-21 13:07:30,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7327 states. [2021-12-21 13:07:30,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7327 to 6787. [2021-12-21 13:07:30,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6787 states, 5549 states have (on average 1.5294647684267435) internal successors, (8487), 5590 states have internal predecessors, (8487), 1052 states have call successors, (1052), 170 states have call predecessors, (1052), 185 states have return successors, (1228), 1046 states have call predecessors, (1228), 1046 states have call successors, (1228) [2021-12-21 13:07:30,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6787 states to 6787 states and 10767 transitions. [2021-12-21 13:07:30,663 INFO L78 Accepts]: Start accepts. Automaton has 6787 states and 10767 transitions. Word has length 206 [2021-12-21 13:07:30,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:07:30,663 INFO L470 AbstractCegarLoop]: Abstraction has 6787 states and 10767 transitions. [2021-12-21 13:07:30,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-21 13:07:30,664 INFO L276 IsEmpty]: Start isEmpty. Operand 6787 states and 10767 transitions. [2021-12-21 13:07:30,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2021-12-21 13:07:30,683 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:07:30,683 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:07:30,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-21 13:07:30,683 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:07:30,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:07:30,684 INFO L85 PathProgramCache]: Analyzing trace with hash -358297493, now seen corresponding path program 1 times [2021-12-21 13:07:30,684 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:07:30,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292838104] [2021-12-21 13:07:30,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:07:30,684 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:07:30,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:30,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 13:07:30,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:30,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 13:07:30,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:30,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-21 13:07:30,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:30,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 13:07:30,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:30,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-21 13:07:30,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:30,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-21 13:07:30,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:30,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 13:07:30,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:30,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-21 13:07:30,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:30,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 13:07:30,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:30,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:07:30,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:30,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-21 13:07:30,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:30,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-21 13:07:30,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:30,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:07:30,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:30,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-21 13:07:30,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:30,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-21 13:07:30,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:30,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:07:30,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:30,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-21 13:07:30,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:30,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-21 13:07:30,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:30,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-21 13:07:30,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:30,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-21 13:07:30,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:30,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-21 13:07:30,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:30,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-21 13:07:30,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:30,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-21 13:07:30,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:30,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-21 13:07:30,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:30,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-21 13:07:30,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:30,768 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-12-21 13:07:30,769 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:07:30,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292838104] [2021-12-21 13:07:30,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292838104] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:07:30,769 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:07:30,769 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-21 13:07:30,769 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598865230] [2021-12-21 13:07:30,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:07:30,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-21 13:07:30,771 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:07:30,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 13:07:30,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-21 13:07:30,772 INFO L87 Difference]: Start difference. First operand 6787 states and 10767 transitions. Second operand has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 3 states have internal predecessors, (123), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-21 13:07:32,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:07:32,628 INFO L93 Difference]: Finished difference Result 16647 states and 27144 transitions. [2021-12-21 13:07:32,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-21 13:07:32,628 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 3 states have internal predecessors, (123), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 207 [2021-12-21 13:07:32,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:07:32,655 INFO L225 Difference]: With dead ends: 16647 [2021-12-21 13:07:32,655 INFO L226 Difference]: Without dead ends: 10563 [2021-12-21 13:07:32,666 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-21 13:07:32,667 INFO L933 BasicCegarLoop]: 888 mSDtfsCounter, 2002 mSDsluCounter, 1229 mSDsCounter, 0 mSdLazyCounter, 1264 mSolverCounterSat, 923 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2021 SdHoareTripleChecker+Valid, 2117 SdHoareTripleChecker+Invalid, 2187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 923 IncrementalHoareTripleChecker+Valid, 1264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-21 13:07:32,667 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2021 Valid, 2117 Invalid, 2187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [923 Valid, 1264 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-21 13:07:32,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10563 states. [2021-12-21 13:07:33,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10563 to 10023. [2021-12-21 13:07:33,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10023 states, 8309 states have (on average 1.5413407148874714) internal successors, (12807), 8350 states have internal predecessors, (12807), 1528 states have call successors, (1528), 170 states have call predecessors, (1528), 185 states have return successors, (1704), 1522 states have call predecessors, (1704), 1522 states have call successors, (1704) [2021-12-21 13:07:33,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10023 states to 10023 states and 16039 transitions. [2021-12-21 13:07:33,149 INFO L78 Accepts]: Start accepts. Automaton has 10023 states and 16039 transitions. Word has length 207 [2021-12-21 13:07:33,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:07:33,150 INFO L470 AbstractCegarLoop]: Abstraction has 10023 states and 16039 transitions. [2021-12-21 13:07:33,150 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 3 states have internal predecessors, (123), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-21 13:07:33,150 INFO L276 IsEmpty]: Start isEmpty. Operand 10023 states and 16039 transitions. [2021-12-21 13:07:33,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2021-12-21 13:07:33,177 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:07:33,177 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:07:33,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-21 13:07:33,178 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:07:33,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:07:33,178 INFO L85 PathProgramCache]: Analyzing trace with hash -425384560, now seen corresponding path program 1 times [2021-12-21 13:07:33,178 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:07:33,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393412835] [2021-12-21 13:07:33,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:07:33,179 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:07:33,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:33,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 13:07:33,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:33,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 13:07:33,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:33,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-21 13:07:33,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:33,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 13:07:33,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:33,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-21 13:07:33,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:33,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-21 13:07:33,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:33,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 13:07:33,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:33,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-21 13:07:33,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:33,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 13:07:33,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:33,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:07:33,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:33,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-21 13:07:33,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:33,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-21 13:07:33,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:33,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:07:33,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:33,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-21 13:07:33,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:33,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-21 13:07:33,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:33,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:07:33,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:33,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-21 13:07:33,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:33,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-21 13:07:33,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:33,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-21 13:07:33,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:33,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-21 13:07:33,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:33,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-21 13:07:33,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:33,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2021-12-21 13:07:33,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:33,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-21 13:07:33,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:33,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-21 13:07:33,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:33,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-21 13:07:33,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:33,299 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-12-21 13:07:33,299 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:07:33,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393412835] [2021-12-21 13:07:33,299 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393412835] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:07:33,299 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:07:33,299 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-21 13:07:33,300 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166623367] [2021-12-21 13:07:33,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:07:33,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-21 13:07:33,300 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:07:33,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 13:07:33,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-21 13:07:33,301 INFO L87 Difference]: Start difference. First operand 10023 states and 16039 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-21 13:07:35,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:07:35,320 INFO L93 Difference]: Finished difference Result 24243 states and 39772 transitions. [2021-12-21 13:07:35,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-21 13:07:35,320 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 208 [2021-12-21 13:07:35,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:07:35,367 INFO L225 Difference]: With dead ends: 24243 [2021-12-21 13:07:35,367 INFO L226 Difference]: Without dead ends: 15551 [2021-12-21 13:07:35,385 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-21 13:07:35,386 INFO L933 BasicCegarLoop]: 889 mSDtfsCounter, 1982 mSDsluCounter, 1229 mSDsCounter, 0 mSdLazyCounter, 1229 mSolverCounterSat, 912 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2000 SdHoareTripleChecker+Valid, 2118 SdHoareTripleChecker+Invalid, 2141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 912 IncrementalHoareTripleChecker+Valid, 1229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-21 13:07:35,386 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2000 Valid, 2118 Invalid, 2141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [912 Valid, 1229 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-21 13:07:35,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15551 states. [2021-12-21 13:07:36,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15551 to 15011. [2021-12-21 13:07:36,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15011 states, 12649 states have (on average 1.5513479326428967) internal successors, (19623), 12690 states have internal predecessors, (19623), 2176 states have call successors, (2176), 170 states have call predecessors, (2176), 185 states have return successors, (2416), 2170 states have call predecessors, (2416), 2170 states have call successors, (2416) [2021-12-21 13:07:36,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15011 states to 15011 states and 24215 transitions. [2021-12-21 13:07:36,135 INFO L78 Accepts]: Start accepts. Automaton has 15011 states and 24215 transitions. Word has length 208 [2021-12-21 13:07:36,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:07:36,136 INFO L470 AbstractCegarLoop]: Abstraction has 15011 states and 24215 transitions. [2021-12-21 13:07:36,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-21 13:07:36,136 INFO L276 IsEmpty]: Start isEmpty. Operand 15011 states and 24215 transitions. [2021-12-21 13:07:36,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2021-12-21 13:07:36,172 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:07:36,173 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:07:36,173 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-21 13:07:36,173 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:07:36,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:07:36,173 INFO L85 PathProgramCache]: Analyzing trace with hash 2139031459, now seen corresponding path program 1 times [2021-12-21 13:07:36,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:07:36,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476568887] [2021-12-21 13:07:36,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:07:36,175 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:07:36,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:36,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 13:07:36,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:36,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 13:07:36,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:36,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-21 13:07:36,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:36,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 13:07:36,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:36,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-21 13:07:36,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:36,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-21 13:07:36,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:36,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 13:07:36,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:36,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-21 13:07:36,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:36,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 13:07:36,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:36,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:07:36,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:36,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-21 13:07:36,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:36,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-21 13:07:36,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:36,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:07:36,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:36,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-21 13:07:36,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:36,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-21 13:07:36,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:36,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:07:36,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:36,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-21 13:07:36,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:36,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-21 13:07:36,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:36,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-21 13:07:36,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:36,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-21 13:07:36,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:36,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-21 13:07:36,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:36,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-21 13:07:36,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:36,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-21 13:07:36,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:36,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-21 13:07:36,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:36,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-21 13:07:36,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:36,291 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-12-21 13:07:36,291 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:07:36,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476568887] [2021-12-21 13:07:36,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476568887] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:07:36,292 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:07:36,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-21 13:07:36,292 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4047089] [2021-12-21 13:07:36,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:07:36,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-21 13:07:36,294 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:07:36,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 13:07:36,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-21 13:07:36,295 INFO L87 Difference]: Start difference. First operand 15011 states and 24215 transitions. Second operand has 7 states, 7 states have (on average 17.857142857142858) internal successors, (125), 3 states have internal predecessors, (125), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-21 13:07:38,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:07:38,657 INFO L93 Difference]: Finished difference Result 36251 states and 59808 transitions. [2021-12-21 13:07:38,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-21 13:07:38,658 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.857142857142858) internal successors, (125), 3 states have internal predecessors, (125), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 209 [2021-12-21 13:07:38,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:07:38,733 INFO L225 Difference]: With dead ends: 36251 [2021-12-21 13:07:38,733 INFO L226 Difference]: Without dead ends: 23607 [2021-12-21 13:07:38,762 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-21 13:07:38,763 INFO L933 BasicCegarLoop]: 899 mSDtfsCounter, 1970 mSDsluCounter, 1228 mSDsCounter, 0 mSdLazyCounter, 1267 mSolverCounterSat, 913 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1988 SdHoareTripleChecker+Valid, 2127 SdHoareTripleChecker+Invalid, 2180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 913 IncrementalHoareTripleChecker+Valid, 1267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-21 13:07:38,763 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1988 Valid, 2127 Invalid, 2180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [913 Valid, 1267 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-21 13:07:38,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23607 states. [2021-12-21 13:07:39,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23607 to 23067. [2021-12-21 13:07:39,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23067 states, 19725 states have (on average 1.5597972116603296) internal successors, (30767), 19766 states have internal predecessors, (30767), 3156 states have call successors, (3156), 170 states have call predecessors, (3156), 185 states have return successors, (3500), 3150 states have call predecessors, (3500), 3150 states have call successors, (3500) [2021-12-21 13:07:39,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23067 states to 23067 states and 37423 transitions. [2021-12-21 13:07:39,773 INFO L78 Accepts]: Start accepts. Automaton has 23067 states and 37423 transitions. Word has length 209 [2021-12-21 13:07:39,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:07:39,773 INFO L470 AbstractCegarLoop]: Abstraction has 23067 states and 37423 transitions. [2021-12-21 13:07:39,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.857142857142858) internal successors, (125), 3 states have internal predecessors, (125), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-21 13:07:39,773 INFO L276 IsEmpty]: Start isEmpty. Operand 23067 states and 37423 transitions. [2021-12-21 13:07:39,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-12-21 13:07:39,822 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:07:39,822 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:07:39,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-21 13:07:39,822 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:07:39,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:07:39,823 INFO L85 PathProgramCache]: Analyzing trace with hash 432958171, now seen corresponding path program 1 times [2021-12-21 13:07:39,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:07:39,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702575744] [2021-12-21 13:07:39,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:07:39,824 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:07:39,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:39,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 13:07:39,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:39,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 13:07:39,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:39,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-21 13:07:39,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:39,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 13:07:39,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:39,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-21 13:07:39,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:39,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-21 13:07:39,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:39,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 13:07:39,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:39,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-21 13:07:39,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:39,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 13:07:39,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:39,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:07:39,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:39,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-21 13:07:39,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:39,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-21 13:07:39,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:39,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:07:39,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:39,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-21 13:07:40,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:40,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-21 13:07:40,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:40,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:07:40,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:40,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-21 13:07:40,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:40,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-21 13:07:40,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:40,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-21 13:07:40,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:40,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-21 13:07:40,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:40,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-21 13:07:40,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:40,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-21 13:07:40,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:40,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-21 13:07:40,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:40,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-21 13:07:40,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:40,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-12-21 13:07:40,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:40,043 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-12-21 13:07:40,043 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:07:40,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702575744] [2021-12-21 13:07:40,059 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702575744] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:07:40,059 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:07:40,059 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-21 13:07:40,060 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406232547] [2021-12-21 13:07:40,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:07:40,060 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-21 13:07:40,061 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:07:40,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 13:07:40,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-21 13:07:40,061 INFO L87 Difference]: Start difference. First operand 23067 states and 37423 transitions. Second operand has 7 states, 7 states have (on average 18.0) internal successors, (126), 3 states have internal predecessors, (126), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-21 13:07:42,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:07:42,582 INFO L93 Difference]: Finished difference Result 56223 states and 93000 transitions. [2021-12-21 13:07:42,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-21 13:07:42,583 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 3 states have internal predecessors, (126), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 210 [2021-12-21 13:07:42,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:07:42,693 INFO L225 Difference]: With dead ends: 56223 [2021-12-21 13:07:42,693 INFO L226 Difference]: Without dead ends: 37107 [2021-12-21 13:07:42,732 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-21 13:07:42,733 INFO L933 BasicCegarLoop]: 896 mSDtfsCounter, 2002 mSDsluCounter, 1261 mSDsCounter, 0 mSdLazyCounter, 1231 mSolverCounterSat, 921 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2021 SdHoareTripleChecker+Valid, 2157 SdHoareTripleChecker+Invalid, 2152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 921 IncrementalHoareTripleChecker+Valid, 1231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-21 13:07:42,733 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2021 Valid, 2157 Invalid, 2152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [921 Valid, 1231 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-21 13:07:42,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37107 states. [2021-12-21 13:07:44,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37107 to 36567. [2021-12-21 13:07:44,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36567 states, 31253 states have (on average 1.557066521613925) internal successors, (48663), 31294 states have internal predecessors, (48663), 5128 states have call successors, (5128), 170 states have call predecessors, (5128), 185 states have return successors, (5648), 5122 states have call predecessors, (5648), 5122 states have call successors, (5648) [2021-12-21 13:07:44,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36567 states to 36567 states and 59439 transitions. [2021-12-21 13:07:44,603 INFO L78 Accepts]: Start accepts. Automaton has 36567 states and 59439 transitions. Word has length 210 [2021-12-21 13:07:44,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:07:44,603 INFO L470 AbstractCegarLoop]: Abstraction has 36567 states and 59439 transitions. [2021-12-21 13:07:44,603 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 3 states have internal predecessors, (126), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-21 13:07:44,603 INFO L276 IsEmpty]: Start isEmpty. Operand 36567 states and 59439 transitions. [2021-12-21 13:07:44,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2021-12-21 13:07:44,665 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:07:44,665 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:07:44,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-12-21 13:07:44,665 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:07:44,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:07:44,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1179852200, now seen corresponding path program 1 times [2021-12-21 13:07:44,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:07:44,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032817436] [2021-12-21 13:07:44,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:07:44,666 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:07:44,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:44,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 13:07:44,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:44,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 13:07:44,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:44,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-21 13:07:44,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:44,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 13:07:44,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:44,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-21 13:07:44,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:44,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-21 13:07:44,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:44,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 13:07:44,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:44,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-21 13:07:44,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:44,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 13:07:44,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:44,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:07:44,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:44,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-21 13:07:44,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:44,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-21 13:07:44,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:44,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:07:44,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:44,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-21 13:07:44,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:44,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-21 13:07:44,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:44,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:07:44,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:44,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-21 13:07:44,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:44,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-21 13:07:44,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:44,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-21 13:07:44,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:44,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-21 13:07:44,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:44,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-21 13:07:44,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:44,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-21 13:07:44,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:44,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-21 13:07:44,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:44,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-12-21 13:07:44,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:44,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-21 13:07:44,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:44,756 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-12-21 13:07:44,756 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:07:44,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032817436] [2021-12-21 13:07:44,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032817436] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:07:44,757 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:07:44,757 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-21 13:07:44,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532184630] [2021-12-21 13:07:44,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:07:44,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-21 13:07:44,758 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:07:44,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 13:07:44,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-21 13:07:44,758 INFO L87 Difference]: Start difference. First operand 36567 states and 59439 transitions. Second operand has 7 states, 7 states have (on average 18.142857142857142) internal successors, (127), 3 states have internal predecessors, (127), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-21 13:07:47,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:07:47,995 INFO L93 Difference]: Finished difference Result 92035 states and 152504 transitions. [2021-12-21 13:07:47,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-21 13:07:47,996 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.142857142857142) internal successors, (127), 3 states have internal predecessors, (127), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 211 [2021-12-21 13:07:47,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:07:48,176 INFO L225 Difference]: With dead ends: 92035 [2021-12-21 13:07:48,177 INFO L226 Difference]: Without dead ends: 61403 [2021-12-21 13:07:48,239 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-21 13:07:48,239 INFO L933 BasicCegarLoop]: 888 mSDtfsCounter, 1976 mSDsluCounter, 1225 mSDsCounter, 0 mSdLazyCounter, 1224 mSolverCounterSat, 929 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1994 SdHoareTripleChecker+Valid, 2113 SdHoareTripleChecker+Invalid, 2153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 929 IncrementalHoareTripleChecker+Valid, 1224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-21 13:07:48,240 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1994 Valid, 2113 Invalid, 2153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [929 Valid, 1224 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-21 13:07:48,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61403 states. [2021-12-21 13:07:50,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61403 to 60863. [2021-12-21 13:07:50,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60863 states, 52261 states have (on average 1.5627523392204512) internal successors, (81671), 52302 states have internal predecessors, (81671), 8416 states have call successors, (8416), 170 states have call predecessors, (8416), 185 states have return successors, (9248), 8410 states have call predecessors, (9248), 8410 states have call successors, (9248) [2021-12-21 13:07:51,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60863 states to 60863 states and 99335 transitions. [2021-12-21 13:07:51,244 INFO L78 Accepts]: Start accepts. Automaton has 60863 states and 99335 transitions. Word has length 211 [2021-12-21 13:07:51,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:07:51,244 INFO L470 AbstractCegarLoop]: Abstraction has 60863 states and 99335 transitions. [2021-12-21 13:07:51,245 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.142857142857142) internal successors, (127), 3 states have internal predecessors, (127), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-21 13:07:51,245 INFO L276 IsEmpty]: Start isEmpty. Operand 60863 states and 99335 transitions. [2021-12-21 13:07:51,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2021-12-21 13:07:51,374 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:07:51,374 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:07:51,374 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-12-21 13:07:51,374 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:07:51,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:07:51,375 INFO L85 PathProgramCache]: Analyzing trace with hash -1594227532, now seen corresponding path program 1 times [2021-12-21 13:07:51,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:07:51,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072433781] [2021-12-21 13:07:51,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:07:51,375 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:07:51,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:51,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 13:07:51,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:51,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 13:07:51,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:51,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-21 13:07:51,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:51,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 13:07:51,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:51,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-21 13:07:51,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:51,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-21 13:07:51,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:51,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 13:07:51,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:51,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-21 13:07:51,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:51,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 13:07:51,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:51,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:07:51,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:51,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-21 13:07:51,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:51,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-21 13:07:51,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:51,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:07:51,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:51,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-21 13:07:51,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:51,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-21 13:07:51,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:51,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:07:51,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:51,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-21 13:07:51,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:51,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-21 13:07:51,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:51,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-21 13:07:51,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:51,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-21 13:07:51,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:51,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-12-21 13:07:51,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:51,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-21 13:07:51,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:51,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-21 13:07:51,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:51,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-21 13:07:51,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:51,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-21 13:07:51,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:07:51,475 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-12-21 13:07:51,475 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:07:51,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072433781] [2021-12-21 13:07:51,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072433781] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:07:51,476 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:07:51,476 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-21 13:07:51,476 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098002855] [2021-12-21 13:07:51,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:07:51,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-21 13:07:51,476 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:07:51,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 13:07:51,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-21 13:07:51,477 INFO L87 Difference]: Start difference. First operand 60863 states and 99335 transitions. Second operand has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 3 states have internal predecessors, (128), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-21 13:07:55,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:07:55,895 INFO L93 Difference]: Finished difference Result 147271 states and 242040 transitions. [2021-12-21 13:07:55,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-21 13:07:55,896 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 3 states have internal predecessors, (128), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 212 [2021-12-21 13:07:55,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted.