./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec3_product18.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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_product18.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 --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 8d7d2bf487526d6e0729662c61851f9ddffc6ed66e923d4f96f5d4608e690fa4 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 23:05:03,050 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 23:05:03,090 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 23:05:03,110 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 23:05:03,110 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 23:05:03,135 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 23:05:03,135 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 23:05:03,136 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 23:05:03,136 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 23:05:03,136 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 23:05:03,136 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 23:05:03,137 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 23:05:03,137 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 23:05:03,137 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 23:05:03,138 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 23:05:03,138 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 23:05:03,138 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 23:05:03,138 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 23:05:03,139 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 23:05:03,139 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 23:05:03,139 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 23:05:03,139 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 23:05:03,140 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 23:05:03,140 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 23:05:03,140 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 23:05:03,140 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 23:05:03,141 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 23:05:03,141 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 23:05:03,141 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 23:05:03,142 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 23:05:03,142 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 23:05:03,142 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 23:05:03,142 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 23:05:03,142 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 23:05:03,143 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 23:05:03,143 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 23:05:03,143 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 23:05:03,143 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 23:05:03,143 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 23:05:03,144 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 23:05:03,144 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 23:05:03,147 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 23:05:03,147 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d7d2bf487526d6e0729662c61851f9ddffc6ed66e923d4f96f5d4608e690fa4 [2024-11-09 23:05:03,357 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 23:05:03,375 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 23:05:03,377 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 23:05:03,377 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 23:05:03,378 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 23:05:03,379 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec3_product18.cil.c [2024-11-09 23:05:04,815 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 23:05:05,058 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 23:05:05,059 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec3_product18.cil.c [2024-11-09 23:05:05,079 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/adacabe21/bd340012637349daa96e1a02517fde56/FLAGd94640fd1 [2024-11-09 23:05:05,379 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/adacabe21/bd340012637349daa96e1a02517fde56 [2024-11-09 23:05:05,381 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 23:05:05,382 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 23:05:05,383 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 23:05:05,383 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 23:05:05,387 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 23:05:05,387 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:05:05" (1/1) ... [2024-11-09 23:05:05,388 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27b22b40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:05:05, skipping insertion in model container [2024-11-09 23:05:05,388 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:05:05" (1/1) ... [2024-11-09 23:05:05,425 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 23:05:05,805 WARN L250 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_product18.cil.c[42127,42140] [2024-11-09 23:05:05,889 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 23:05:05,901 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 23:05:05,946 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [48] [2024-11-09 23:05:05,947 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [97] [2024-11-09 23:05:05,948 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1177] [2024-11-09 23:05:05,948 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1470] [2024-11-09 23:05:05,948 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1836] [2024-11-09 23:05:05,948 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1845] [2024-11-09 23:05:05,948 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2147] [2024-11-09 23:05:05,948 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"SignVerify_spec.i","") [2550] [2024-11-09 23:05:05,948 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2608] [2024-11-09 23:05:05,948 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2824] [2024-11-09 23:05:05,949 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2921] [2024-11-09 23:05:06,060 WARN L250 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_product18.cil.c[42127,42140] [2024-11-09 23:05:06,084 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 23:05:06,113 INFO L204 MainTranslator]: Completed translation [2024-11-09 23:05:06,114 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:05:06 WrapperNode [2024-11-09 23:05:06,114 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 23:05:06,115 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 23:05:06,115 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 23:05:06,115 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 23:05:06,120 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:05:06" (1/1) ... [2024-11-09 23:05:06,137 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:05:06" (1/1) ... [2024-11-09 23:05:06,169 INFO L138 Inliner]: procedures = 128, calls = 192, calls flagged for inlining = 57, calls inlined = 48, statements flattened = 881 [2024-11-09 23:05:06,169 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 23:05:06,170 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 23:05:06,170 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 23:05:06,170 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 23:05:06,179 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:05:06" (1/1) ... [2024-11-09 23:05:06,179 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:05:06" (1/1) ... [2024-11-09 23:05:06,187 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:05:06" (1/1) ... [2024-11-09 23:05:06,206 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 4, 4, 4]. 29 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0]. [2024-11-09 23:05:06,206 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:05:06" (1/1) ... [2024-11-09 23:05:06,206 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:05:06" (1/1) ... [2024-11-09 23:05:06,218 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:05:06" (1/1) ... [2024-11-09 23:05:06,219 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:05:06" (1/1) ... [2024-11-09 23:05:06,222 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:05:06" (1/1) ... [2024-11-09 23:05:06,224 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:05:06" (1/1) ... [2024-11-09 23:05:06,228 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 23:05:06,229 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 23:05:06,229 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 23:05:06,229 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 23:05:06,230 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:05:06" (1/1) ... [2024-11-09 23:05:06,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 23:05:06,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:05:06,260 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 23:05:06,262 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 23:05:06,297 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-09 23:05:06,297 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-09 23:05:06,297 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-09 23:05:06,297 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-09 23:05:06,297 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-09 23:05:06,298 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-09 23:05:06,298 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-09 23:05:06,298 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-09 23:05:06,298 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-09 23:05:06,298 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-09 23:05:06,298 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-09 23:05:06,298 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-09 23:05:06,298 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-09 23:05:06,298 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-09 23:05:06,299 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-09 23:05:06,299 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-09 23:05:06,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 23:05:06,299 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-09 23:05:06,301 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-09 23:05:06,301 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-11-09 23:05:06,301 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-11-09 23:05:06,301 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-09 23:05:06,301 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-09 23:05:06,302 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-11-09 23:05:06,302 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-11-09 23:05:06,302 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-09 23:05:06,302 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-09 23:05:06,303 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-09 23:05:06,303 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-09 23:05:06,303 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-11-09 23:05:06,303 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-11-09 23:05:06,303 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-09 23:05:06,303 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-09 23:05:06,304 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-09 23:05:06,304 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-09 23:05:06,304 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-09 23:05:06,304 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-09 23:05:06,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 23:05:06,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 23:05:06,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-09 23:05:06,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-09 23:05:06,304 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-09 23:05:06,304 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-09 23:05:06,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 23:05:06,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 23:05:06,447 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 23:05:06,449 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 23:05:06,676 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L672-1: getClientAutoResponse_#res#1 := getClientAutoResponse_~retValue_acc~10#1; [2024-11-09 23:05:06,676 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1154-1: getClientId_#res#1 := getClientId_~retValue_acc~18#1; [2024-11-09 23:05:06,676 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L719-1: getClientPrivateKey_#res#1 := getClientPrivateKey_~retValue_acc~11#1; [2024-11-09 23:05:06,684 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2457: #res := ~retValue_acc~36; [2024-11-09 23:05:06,692 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2044: #res := ~retValue_acc~27; [2024-11-09 23:05:06,716 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L766-1: getClientKeyringSize_#res#1 := getClientKeyringSize_~retValue_acc~12#1; [2024-11-09 23:05:06,716 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L811: #res#1 := ~retValue_acc~13#1; [2024-11-09 23:05:06,730 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1035: #res := ~retValue_acc~16; [2024-11-09 23:05:06,737 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2918-1: createEmail_#res#1 := createEmail_~retValue_acc~41#1; [2024-11-09 23:05:06,745 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2494: #res := ~retValue_acc~37; [2024-11-09 23:05:06,772 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2268: #res := ~retValue_acc~31; [2024-11-09 23:05:06,985 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2001-1: is_queue_empty_#res#1 := is_queue_empty_~retValue_acc~24#1; [2024-11-09 23:05:06,985 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L94-1: valid_product_#res#1 := valid_product_~retValue_acc~1#1; [2024-11-09 23:05:06,986 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2010-1: get_queued_client_#res#1 := get_queued_client_~retValue_acc~25#1; [2024-11-09 23:05:06,986 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2019-1: get_queued_email_#res#1 := get_queued_email_~retValue_acc~26#1; [2024-11-09 23:05:06,986 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L981-1: getClientKeyringPublicKey_#res#1 := getClientKeyringPublicKey_~retValue_acc~15#1; [2024-11-09 23:05:06,986 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L874-1: getClientKeyringUser_#res#1 := getClientKeyringUser_~retValue_acc~14#1; [2024-11-09 23:05:06,996 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2231: #res := ~retValue_acc~30; [2024-11-09 23:05:06,999 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2894: #res := ~retValue_acc~39; [2024-11-09 23:05:07,108 INFO L? ?]: Removed 396 outVars from TransFormulas that were not future-live. [2024-11-09 23:05:07,109 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 23:05:07,126 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 23:05:07,126 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 23:05:07,126 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 11:05:07 BoogieIcfgContainer [2024-11-09 23:05:07,126 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 23:05:07,128 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 23:05:07,128 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 23:05:07,131 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 23:05:07,131 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 11:05:05" (1/3) ... [2024-11-09 23:05:07,132 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7514e3a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:05:07, skipping insertion in model container [2024-11-09 23:05:07,132 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:05:06" (2/3) ... [2024-11-09 23:05:07,132 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7514e3a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:05:07, skipping insertion in model container [2024-11-09 23:05:07,132 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 11:05:07" (3/3) ... [2024-11-09 23:05:07,133 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec3_product18.cil.c [2024-11-09 23:05:07,181 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 23:05:07,181 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 23:05:07,234 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 23:05:07,239 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5eb94dd8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 23:05:07,240 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 23:05:07,245 INFO L276 IsEmpty]: Start isEmpty. Operand has 318 states, 251 states have (on average 1.5099601593625498) internal successors, (379), 255 states have internal predecessors, (379), 46 states have call successors, (46), 19 states have call predecessors, (46), 19 states have return successors, (46), 45 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-09 23:05:07,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-09 23:05:07,258 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:05:07,259 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-11-09 23:05:07,259 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:05:07,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:05:07,264 INFO L85 PathProgramCache]: Analyzing trace with hash 224450404, now seen corresponding path program 1 times [2024-11-09 23:05:07,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:05:07,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322188746] [2024-11-09 23:05:07,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:05:07,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:05:07,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:07,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:05:07,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:07,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:05:07,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:07,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:05:07,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:07,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-09 23:05:07,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:07,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-09 23:05:07,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:07,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-09 23:05:07,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:07,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-09 23:05:07,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:07,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-09 23:05:07,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:07,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-09 23:05:07,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:07,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-09 23:05:07,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:07,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-09 23:05:07,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:07,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-09 23:05:07,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:07,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-09 23:05:07,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:07,848 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 23:05:07,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:05:07,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322188746] [2024-11-09 23:05:07,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322188746] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:05:07,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [138077584] [2024-11-09 23:05:07,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:05:07,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:05:07,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:05:07,856 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) [2024-11-09 23:05:07,858 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 23:05:08,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:08,146 INFO L255 TraceCheckSpWp]: Trace formula consists of 1023 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 23:05:08,152 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:05:08,165 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-09 23:05:08,165 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 23:05:08,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [138077584] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:05:08,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 23:05:08,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2024-11-09 23:05:08,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129803736] [2024-11-09 23:05:08,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:05:08,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 23:05:08,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:05:08,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 23:05:08,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-09 23:05:08,191 INFO L87 Difference]: Start difference. First operand has 318 states, 251 states have (on average 1.5099601593625498) internal successors, (379), 255 states have internal predecessors, (379), 46 states have call successors, (46), 19 states have call predecessors, (46), 19 states have return successors, (46), 45 states have call predecessors, (46), 46 states have call successors, (46) Second operand has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 23:05:08,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:05:08,225 INFO L93 Difference]: Finished difference Result 470 states and 685 transitions. [2024-11-09 23:05:08,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 23:05:08,227 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 104 [2024-11-09 23:05:08,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:05:08,238 INFO L225 Difference]: With dead ends: 470 [2024-11-09 23:05:08,238 INFO L226 Difference]: Without dead ends: 309 [2024-11-09 23:05:08,242 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-09 23:05:08,244 INFO L432 NwaCegarLoop]: 464 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:05:08,244 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:05:08,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2024-11-09 23:05:08,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 309. [2024-11-09 23:05:08,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 244 states have (on average 1.5040983606557377) internal successors, (367), 246 states have internal predecessors, (367), 46 states have call successors, (46), 19 states have call predecessors, (46), 18 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2024-11-09 23:05:08,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 456 transitions. [2024-11-09 23:05:08,288 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 456 transitions. Word has length 104 [2024-11-09 23:05:08,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:05:08,289 INFO L471 AbstractCegarLoop]: Abstraction has 309 states and 456 transitions. [2024-11-09 23:05:08,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 23:05:08,290 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 456 transitions. [2024-11-09 23:05:08,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-09 23:05:08,293 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:05:08,293 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-11-09 23:05:08,310 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 23:05:08,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-09 23:05:08,495 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:05:08,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:05:08,495 INFO L85 PathProgramCache]: Analyzing trace with hash -1517902594, now seen corresponding path program 1 times [2024-11-09 23:05:08,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:05:08,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257075303] [2024-11-09 23:05:08,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:05:08,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:05:08,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:08,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:05:08,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:08,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:05:08,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:08,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:05:08,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:08,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-09 23:05:08,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:08,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-09 23:05:08,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:08,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-09 23:05:08,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:08,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-09 23:05:08,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:08,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-09 23:05:08,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:08,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-09 23:05:08,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:08,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-09 23:05:08,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:08,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-09 23:05:08,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:08,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-09 23:05:08,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:08,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-09 23:05:08,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:08,680 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 23:05:08,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:05:08,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257075303] [2024-11-09 23:05:08,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257075303] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:05:08,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [710503761] [2024-11-09 23:05:08,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:05:08,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:05:08,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:05:08,687 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) [2024-11-09 23:05:08,692 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 23:05:08,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:08,911 INFO L255 TraceCheckSpWp]: Trace formula consists of 1025 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 23:05:08,935 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:05:08,961 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-09 23:05:08,961 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 23:05:08,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [710503761] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:05:08,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 23:05:08,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-09 23:05:08,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459797006] [2024-11-09 23:05:08,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:05:08,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:05:08,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:05:08,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:05:08,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-09 23:05:08,964 INFO L87 Difference]: Start difference. First operand 309 states and 456 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 23:05:08,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:05:08,992 INFO L93 Difference]: Finished difference Result 458 states and 661 transitions. [2024-11-09 23:05:08,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:05:08,993 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 106 [2024-11-09 23:05:08,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:05:08,995 INFO L225 Difference]: With dead ends: 458 [2024-11-09 23:05:08,995 INFO L226 Difference]: Without dead ends: 312 [2024-11-09 23:05:08,996 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-09 23:05:08,997 INFO L432 NwaCegarLoop]: 455 mSDtfsCounter, 0 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 908 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:05:08,998 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 908 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:05:08,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2024-11-09 23:05:09,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 312. [2024-11-09 23:05:09,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 247 states have (on average 1.4979757085020242) internal successors, (370), 249 states have internal predecessors, (370), 46 states have call successors, (46), 19 states have call predecessors, (46), 18 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2024-11-09 23:05:09,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 459 transitions. [2024-11-09 23:05:09,015 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 459 transitions. Word has length 106 [2024-11-09 23:05:09,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:05:09,015 INFO L471 AbstractCegarLoop]: Abstraction has 312 states and 459 transitions. [2024-11-09 23:05:09,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 23:05:09,015 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 459 transitions. [2024-11-09 23:05:09,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-09 23:05:09,020 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:05:09,021 INFO L215 NwaCegarLoop]: trace histogram [3, 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] [2024-11-09 23:05:09,035 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-09 23:05:09,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-09 23:05:09,225 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:05:09,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:05:09,226 INFO L85 PathProgramCache]: Analyzing trace with hash 314647774, now seen corresponding path program 1 times [2024-11-09 23:05:09,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:05:09,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714668718] [2024-11-09 23:05:09,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:05:09,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:05:09,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:09,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:05:09,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:09,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:05:09,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:09,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:05:09,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:09,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-09 23:05:09,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:09,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-09 23:05:09,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:09,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-09 23:05:09,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:09,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-09 23:05:09,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:09,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-09 23:05:09,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:09,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-09 23:05:09,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:09,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-09 23:05:09,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:09,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-09 23:05:09,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:09,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-09 23:05:09,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:09,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-09 23:05:09,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:09,456 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-09 23:05:09,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:05:09,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714668718] [2024-11-09 23:05:09,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714668718] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:05:09,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2146574670] [2024-11-09 23:05:09,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:05:09,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:05:09,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:05:09,463 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) [2024-11-09 23:05:09,468 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 23:05:09,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:09,701 INFO L255 TraceCheckSpWp]: Trace formula consists of 1052 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 23:05:09,704 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:05:09,730 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-09 23:05:09,730 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 23:05:09,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2146574670] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:05:09,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 23:05:09,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-09 23:05:09,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046538216] [2024-11-09 23:05:09,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:05:09,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:05:09,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:05:09,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:05:09,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-09 23:05:09,738 INFO L87 Difference]: Start difference. First operand 312 states and 459 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 23:05:09,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:05:09,777 INFO L93 Difference]: Finished difference Result 663 states and 986 transitions. [2024-11-09 23:05:09,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:05:09,778 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 116 [2024-11-09 23:05:09,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:05:09,782 INFO L225 Difference]: With dead ends: 663 [2024-11-09 23:05:09,783 INFO L226 Difference]: Without dead ends: 379 [2024-11-09 23:05:09,785 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-09 23:05:09,787 INFO L432 NwaCegarLoop]: 471 mSDtfsCounter, 117 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 881 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 [2024-11-09 23:05:09,788 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 881 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:05:09,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2024-11-09 23:05:09,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 371. [2024-11-09 23:05:09,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 295 states have (on average 1.4983050847457626) internal successors, (442), 297 states have internal predecessors, (442), 57 states have call successors, (57), 19 states have call predecessors, (57), 18 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-09 23:05:09,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 553 transitions. [2024-11-09 23:05:09,821 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 553 transitions. Word has length 116 [2024-11-09 23:05:09,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:05:09,821 INFO L471 AbstractCegarLoop]: Abstraction has 371 states and 553 transitions. [2024-11-09 23:05:09,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 23:05:09,821 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 553 transitions. [2024-11-09 23:05:09,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-09 23:05:09,823 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:05:09,823 INFO L215 NwaCegarLoop]: trace histogram [3, 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] [2024-11-09 23:05:09,840 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 23:05:10,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:05:10,024 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:05:10,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:05:10,024 INFO L85 PathProgramCache]: Analyzing trace with hash 353863075, now seen corresponding path program 1 times [2024-11-09 23:05:10,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:05:10,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384220146] [2024-11-09 23:05:10,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:05:10,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:05:10,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:10,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:05:10,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:10,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:05:10,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:10,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:05:10,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:10,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-09 23:05:10,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:10,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-09 23:05:10,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:10,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-09 23:05:10,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:10,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-09 23:05:10,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:10,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-09 23:05:10,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:10,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-09 23:05:10,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:10,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-09 23:05:10,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:10,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-09 23:05:10,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:10,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-09 23:05:10,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:10,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-09 23:05:10,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:10,304 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-09 23:05:10,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:05:10,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384220146] [2024-11-09 23:05:10,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384220146] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:05:10,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1845716447] [2024-11-09 23:05:10,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:05:10,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:05:10,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:05:10,306 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) [2024-11-09 23:05:10,325 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 23:05:10,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:10,533 INFO L255 TraceCheckSpWp]: Trace formula consists of 1057 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 23:05:10,538 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:05:10,595 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 23:05:10,595 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 23:05:10,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1845716447] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:05:10,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 23:05:10,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-11-09 23:05:10,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94642834] [2024-11-09 23:05:10,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:05:10,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 23:05:10,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:05:10,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 23:05:10,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-09 23:05:10,599 INFO L87 Difference]: Start difference. First operand 371 states and 553 transitions. Second operand has 5 states, 4 states have (on average 20.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-09 23:05:10,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:05:10,639 INFO L93 Difference]: Finished difference Result 733 states and 1096 transitions. [2024-11-09 23:05:10,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 23:05:10,640 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 20.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 117 [2024-11-09 23:05:10,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:05:10,643 INFO L225 Difference]: With dead ends: 733 [2024-11-09 23:05:10,643 INFO L226 Difference]: Without dead ends: 373 [2024-11-09 23:05:10,644 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-09 23:05:10,644 INFO L432 NwaCegarLoop]: 448 mSDtfsCounter, 2 mSDsluCounter, 1333 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1781 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:05:10,645 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1781 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:05:10,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2024-11-09 23:05:10,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 373. [2024-11-09 23:05:10,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 296 states have (on average 1.4966216216216217) internal successors, (443), 299 states have internal predecessors, (443), 57 states have call successors, (57), 19 states have call predecessors, (57), 19 states have return successors, (56), 54 states have call predecessors, (56), 54 states have call successors, (56) [2024-11-09 23:05:10,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 556 transitions. [2024-11-09 23:05:10,655 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 556 transitions. Word has length 117 [2024-11-09 23:05:10,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:05:10,655 INFO L471 AbstractCegarLoop]: Abstraction has 373 states and 556 transitions. [2024-11-09 23:05:10,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 20.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-09 23:05:10,656 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 556 transitions. [2024-11-09 23:05:10,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-09 23:05:10,657 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:05:10,657 INFO L215 NwaCegarLoop]: trace histogram [3, 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] [2024-11-09 23:05:10,674 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 23:05:10,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:05:10,862 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:05:10,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:05:10,862 INFO L85 PathProgramCache]: Analyzing trace with hash -26407065, now seen corresponding path program 1 times [2024-11-09 23:05:10,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:05:10,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304911330] [2024-11-09 23:05:10,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:05:10,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:05:10,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:10,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:05:10,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:10,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:05:10,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:10,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:05:10,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:10,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:05:10,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:10,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-09 23:05:10,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:10,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-09 23:05:10,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:11,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-09 23:05:11,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:11,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-09 23:05:11,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:11,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-09 23:05:11,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:11,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-09 23:05:11,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:11,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-09 23:05:11,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:11,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-09 23:05:11,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:11,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-09 23:05:11,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:11,026 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-09 23:05:11,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:05:11,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304911330] [2024-11-09 23:05:11,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304911330] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:05:11,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [39635442] [2024-11-09 23:05:11,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:05:11,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:05:11,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:05:11,028 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) [2024-11-09 23:05:11,032 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 23:05:11,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:11,242 INFO L255 TraceCheckSpWp]: Trace formula consists of 1058 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 23:05:11,245 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:05:11,285 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 23:05:11,286 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 23:05:11,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [39635442] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:05:11,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 23:05:11,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-11-09 23:05:11,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255173114] [2024-11-09 23:05:11,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:05:11,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 23:05:11,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:05:11,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 23:05:11,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-11-09 23:05:11,288 INFO L87 Difference]: Start difference. First operand 373 states and 556 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-09 23:05:11,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:05:11,333 INFO L93 Difference]: Finished difference Result 735 states and 1101 transitions. [2024-11-09 23:05:11,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 23:05:11,334 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 118 [2024-11-09 23:05:11,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:05:11,337 INFO L225 Difference]: With dead ends: 735 [2024-11-09 23:05:11,337 INFO L226 Difference]: Without dead ends: 375 [2024-11-09 23:05:11,338 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-11-09 23:05:11,339 INFO L432 NwaCegarLoop]: 446 mSDtfsCounter, 2 mSDsluCounter, 1321 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1767 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:05:11,339 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1767 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:05:11,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2024-11-09 23:05:11,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 375. [2024-11-09 23:05:11,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 297 states have (on average 1.494949494949495) internal successors, (444), 301 states have internal predecessors, (444), 57 states have call successors, (57), 19 states have call predecessors, (57), 20 states have return successors, (61), 54 states have call predecessors, (61), 54 states have call successors, (61) [2024-11-09 23:05:11,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 562 transitions. [2024-11-09 23:05:11,352 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 562 transitions. Word has length 118 [2024-11-09 23:05:11,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:05:11,352 INFO L471 AbstractCegarLoop]: Abstraction has 375 states and 562 transitions. [2024-11-09 23:05:11,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-09 23:05:11,353 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 562 transitions. [2024-11-09 23:05:11,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-09 23:05:11,355 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:05:11,355 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 23:05:11,374 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-09 23:05:11,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:05:11,556 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:05:11,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:05:11,557 INFO L85 PathProgramCache]: Analyzing trace with hash 505747308, now seen corresponding path program 1 times [2024-11-09 23:05:11,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:05:11,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211537258] [2024-11-09 23:05:11,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:05:11,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:05:11,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:11,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:05:11,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:11,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:05:11,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:11,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:05:11,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:11,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:05:11,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:11,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:05:11,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:11,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-09 23:05:11,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:11,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-09 23:05:11,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:11,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-09 23:05:11,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:11,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-09 23:05:11,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:11,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-09 23:05:11,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:11,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-09 23:05:11,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:11,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-09 23:05:11,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:11,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-09 23:05:11,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:11,714 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-09 23:05:11,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:05:11,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211537258] [2024-11-09 23:05:11,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211537258] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:05:11,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:05:11,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 23:05:11,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533091235] [2024-11-09 23:05:11,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:05:11,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 23:05:11,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:05:11,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 23:05:11,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-09 23:05:11,717 INFO L87 Difference]: Start difference. First operand 375 states and 562 transitions. Second operand has 9 states, 8 states have (on average 9.75) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-09 23:05:13,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:05:13,079 INFO L93 Difference]: Finished difference Result 830 states and 1249 transitions. [2024-11-09 23:05:13,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 23:05:13,080 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.75) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 119 [2024-11-09 23:05:13,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:05:13,082 INFO L225 Difference]: With dead ends: 830 [2024-11-09 23:05:13,082 INFO L226 Difference]: Without dead ends: 478 [2024-11-09 23:05:13,083 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-09 23:05:13,084 INFO L432 NwaCegarLoop]: 188 mSDtfsCounter, 939 mSDsluCounter, 999 mSDsCounter, 0 mSdLazyCounter, 1958 mSolverCounterSat, 273 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 940 SdHoareTripleChecker+Valid, 1187 SdHoareTripleChecker+Invalid, 2231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 273 IncrementalHoareTripleChecker+Valid, 1958 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 23:05:13,084 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [940 Valid, 1187 Invalid, 2231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [273 Valid, 1958 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 23:05:13,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2024-11-09 23:05:13,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 375. [2024-11-09 23:05:13,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 297 states have (on average 1.494949494949495) internal successors, (444), 301 states have internal predecessors, (444), 57 states have call successors, (57), 19 states have call predecessors, (57), 20 states have return successors, (60), 54 states have call predecessors, (60), 54 states have call successors, (60) [2024-11-09 23:05:13,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 561 transitions. [2024-11-09 23:05:13,129 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 561 transitions. Word has length 119 [2024-11-09 23:05:13,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:05:13,129 INFO L471 AbstractCegarLoop]: Abstraction has 375 states and 561 transitions. [2024-11-09 23:05:13,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.75) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-09 23:05:13,130 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 561 transitions. [2024-11-09 23:05:13,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-09 23:05:13,133 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:05:13,134 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 23:05:13,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 23:05:13,134 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:05:13,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:05:13,134 INFO L85 PathProgramCache]: Analyzing trace with hash -673982062, now seen corresponding path program 2 times [2024-11-09 23:05:13,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:05:13,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416916908] [2024-11-09 23:05:13,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:05:13,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:05:13,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:13,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:05:13,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:13,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:05:13,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:13,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:05:13,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:13,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:05:13,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:13,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:05:13,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:13,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-09 23:05:13,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:13,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-09 23:05:13,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:13,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-09 23:05:13,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:13,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-09 23:05:13,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:13,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-09 23:05:13,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:13,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-09 23:05:13,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:13,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-09 23:05:13,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:13,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-09 23:05:13,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:13,339 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-09 23:05:13,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:05:13,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416916908] [2024-11-09 23:05:13,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416916908] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:05:13,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:05:13,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 23:05:13,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608524650] [2024-11-09 23:05:13,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:05:13,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 23:05:13,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:05:13,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 23:05:13,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-09 23:05:13,340 INFO L87 Difference]: Start difference. First operand 375 states and 561 transitions. Second operand has 9 states, 8 states have (on average 9.875) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-09 23:05:15,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:05:15,049 INFO L93 Difference]: Finished difference Result 832 states and 1252 transitions. [2024-11-09 23:05:15,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 23:05:15,049 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.875) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 120 [2024-11-09 23:05:15,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:05:15,052 INFO L225 Difference]: With dead ends: 832 [2024-11-09 23:05:15,052 INFO L226 Difference]: Without dead ends: 480 [2024-11-09 23:05:15,054 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-09 23:05:15,055 INFO L432 NwaCegarLoop]: 188 mSDtfsCounter, 935 mSDsluCounter, 999 mSDsCounter, 0 mSdLazyCounter, 1970 mSolverCounterSat, 273 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 936 SdHoareTripleChecker+Valid, 1187 SdHoareTripleChecker+Invalid, 2243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 273 IncrementalHoareTripleChecker+Valid, 1970 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 23:05:15,055 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [936 Valid, 1187 Invalid, 2243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [273 Valid, 1970 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 23:05:15,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2024-11-09 23:05:15,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 377. [2024-11-09 23:05:15,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 298 states have (on average 1.4932885906040267) internal successors, (445), 303 states have internal predecessors, (445), 57 states have call successors, (57), 19 states have call predecessors, (57), 21 states have return successors, (62), 54 states have call predecessors, (62), 54 states have call successors, (62) [2024-11-09 23:05:15,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 564 transitions. [2024-11-09 23:05:15,080 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 564 transitions. Word has length 120 [2024-11-09 23:05:15,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:05:15,082 INFO L471 AbstractCegarLoop]: Abstraction has 377 states and 564 transitions. [2024-11-09 23:05:15,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.875) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-09 23:05:15,082 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 564 transitions. [2024-11-09 23:05:15,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-09 23:05:15,084 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:05:15,084 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 23:05:15,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 23:05:15,084 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:05:15,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:05:15,085 INFO L85 PathProgramCache]: Analyzing trace with hash -2136521617, now seen corresponding path program 1 times [2024-11-09 23:05:15,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:05:15,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307147352] [2024-11-09 23:05:15,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:05:15,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:05:15,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:15,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:05:15,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:15,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:05:15,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:15,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:05:15,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:15,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:05:15,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:15,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:05:15,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:15,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:05:15,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:15,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-09 23:05:15,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:15,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-09 23:05:15,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:15,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-09 23:05:15,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:15,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-09 23:05:15,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:15,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-09 23:05:15,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:15,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-09 23:05:15,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:15,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-09 23:05:15,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:15,274 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-09 23:05:15,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:05:15,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307147352] [2024-11-09 23:05:15,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307147352] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:05:15,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:05:15,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-09 23:05:15,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570590675] [2024-11-09 23:05:15,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:05:15,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 23:05:15,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:05:15,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 23:05:15,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-09 23:05:15,276 INFO L87 Difference]: Start difference. First operand 377 states and 564 transitions. Second operand has 12 states, 11 states have (on average 7.545454545454546) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-09 23:05:17,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:05:17,212 INFO L93 Difference]: Finished difference Result 830 states and 1247 transitions. [2024-11-09 23:05:17,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 23:05:17,212 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.545454545454546) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) Word has length 121 [2024-11-09 23:05:17,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:05:17,215 INFO L225 Difference]: With dead ends: 830 [2024-11-09 23:05:17,215 INFO L226 Difference]: Without dead ends: 480 [2024-11-09 23:05:17,216 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-11-09 23:05:17,217 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 938 mSDsluCounter, 1458 mSDsCounter, 0 mSdLazyCounter, 3297 mSolverCounterSat, 277 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 939 SdHoareTripleChecker+Valid, 1645 SdHoareTripleChecker+Invalid, 3574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 277 IncrementalHoareTripleChecker+Valid, 3297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-09 23:05:17,218 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [939 Valid, 1645 Invalid, 3574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [277 Valid, 3297 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-09 23:05:17,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2024-11-09 23:05:17,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 377. [2024-11-09 23:05:17,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 298 states have (on average 1.4932885906040267) internal successors, (445), 303 states have internal predecessors, (445), 57 states have call successors, (57), 19 states have call predecessors, (57), 21 states have return successors, (61), 54 states have call predecessors, (61), 54 states have call successors, (61) [2024-11-09 23:05:17,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 563 transitions. [2024-11-09 23:05:17,240 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 563 transitions. Word has length 121 [2024-11-09 23:05:17,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:05:17,240 INFO L471 AbstractCegarLoop]: Abstraction has 377 states and 563 transitions. [2024-11-09 23:05:17,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.545454545454546) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-09 23:05:17,240 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 563 transitions. [2024-11-09 23:05:17,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-09 23:05:17,242 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:05:17,242 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 23:05:17,242 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 23:05:17,243 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:05:17,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:05:17,243 INFO L85 PathProgramCache]: Analyzing trace with hash -380400900, now seen corresponding path program 2 times [2024-11-09 23:05:17,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:05:17,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969123959] [2024-11-09 23:05:17,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:05:17,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:05:17,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:17,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:05:17,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:17,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:05:17,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:17,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:05:17,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:17,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:05:17,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:17,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:05:17,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:17,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:05:17,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:17,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-09 23:05:17,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:17,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-09 23:05:17,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:17,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-09 23:05:17,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:17,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-09 23:05:17,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:17,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-09 23:05:17,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:17,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-09 23:05:17,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:17,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-09 23:05:17,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:17,551 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-09 23:05:17,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:05:17,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969123959] [2024-11-09 23:05:17,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969123959] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:05:17,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:05:17,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-09 23:05:17,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837800573] [2024-11-09 23:05:17,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:05:17,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 23:05:17,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:05:17,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 23:05:17,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-09 23:05:17,554 INFO L87 Difference]: Start difference. First operand 377 states and 563 transitions. Second operand has 12 states, 11 states have (on average 7.636363636363637) internal successors, (84), 8 states have internal predecessors, (84), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-09 23:05:19,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:05:19,266 INFO L93 Difference]: Finished difference Result 832 states and 1253 transitions. [2024-11-09 23:05:19,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 23:05:19,266 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.636363636363637) internal successors, (84), 8 states have internal predecessors, (84), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) Word has length 122 [2024-11-09 23:05:19,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:05:19,269 INFO L225 Difference]: With dead ends: 832 [2024-11-09 23:05:19,269 INFO L226 Difference]: Without dead ends: 482 [2024-11-09 23:05:19,270 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-11-09 23:05:19,270 INFO L432 NwaCegarLoop]: 188 mSDtfsCounter, 934 mSDsluCounter, 1458 mSDsCounter, 0 mSdLazyCounter, 3333 mSolverCounterSat, 274 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 935 SdHoareTripleChecker+Valid, 1646 SdHoareTripleChecker+Invalid, 3607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 274 IncrementalHoareTripleChecker+Valid, 3333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-09 23:05:19,270 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [935 Valid, 1646 Invalid, 3607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [274 Valid, 3333 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-09 23:05:19,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2024-11-09 23:05:19,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 379. [2024-11-09 23:05:19,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 299 states have (on average 1.491638795986622) internal successors, (446), 305 states have internal predecessors, (446), 57 states have call successors, (57), 19 states have call predecessors, (57), 22 states have return successors, (66), 54 states have call predecessors, (66), 54 states have call successors, (66) [2024-11-09 23:05:19,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 569 transitions. [2024-11-09 23:05:19,287 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 569 transitions. Word has length 122 [2024-11-09 23:05:19,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:05:19,287 INFO L471 AbstractCegarLoop]: Abstraction has 379 states and 569 transitions. [2024-11-09 23:05:19,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.636363636363637) internal successors, (84), 8 states have internal predecessors, (84), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-09 23:05:19,288 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 569 transitions. [2024-11-09 23:05:19,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-09 23:05:19,289 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:05:19,289 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 23:05:19,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 23:05:19,289 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:05:19,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:05:19,290 INFO L85 PathProgramCache]: Analyzing trace with hash -512611182, now seen corresponding path program 1 times [2024-11-09 23:05:19,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:05:19,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043730450] [2024-11-09 23:05:19,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:05:19,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:05:19,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:19,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:05:19,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:19,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:05:19,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:19,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:05:19,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:19,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:05:19,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:19,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:05:19,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:19,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:05:19,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:19,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-09 23:05:19,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:19,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-09 23:05:19,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:19,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-09 23:05:19,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:19,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-09 23:05:19,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:19,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-09 23:05:19,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:19,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-09 23:05:19,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:19,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-09 23:05:19,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:19,472 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-09 23:05:19,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:05:19,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043730450] [2024-11-09 23:05:19,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043730450] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:05:19,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [146125268] [2024-11-09 23:05:19,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:05:19,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:05:19,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:05:19,474 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) [2024-11-09 23:05:19,475 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 23:05:19,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:19,686 INFO L255 TraceCheckSpWp]: Trace formula consists of 1063 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 23:05:19,688 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:05:19,728 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 23:05:19,728 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 23:05:19,812 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 23:05:19,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [146125268] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 23:05:19,812 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 23:05:19,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2024-11-09 23:05:19,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399890831] [2024-11-09 23:05:19,813 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 23:05:19,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-09 23:05:19,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:05:19,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-09 23:05:19,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-11-09 23:05:19,816 INFO L87 Difference]: Start difference. First operand 379 states and 569 transitions. Second operand has 15 states, 14 states have (on average 10.214285714285714) internal successors, (143), 11 states have internal predecessors, (143), 4 states have call successors, (32), 6 states have call predecessors, (32), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2024-11-09 23:05:21,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:05:21,927 INFO L93 Difference]: Finished difference Result 1232 states and 1935 transitions. [2024-11-09 23:05:21,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-09 23:05:21,927 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 10.214285714285714) internal successors, (143), 11 states have internal predecessors, (143), 4 states have call successors, (32), 6 states have call predecessors, (32), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) Word has length 123 [2024-11-09 23:05:21,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:05:21,935 INFO L225 Difference]: With dead ends: 1232 [2024-11-09 23:05:21,935 INFO L226 Difference]: Without dead ends: 885 [2024-11-09 23:05:21,936 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=164, Invalid=828, Unknown=0, NotChecked=0, Total=992 [2024-11-09 23:05:21,937 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 1989 mSDsluCounter, 1755 mSDsCounter, 0 mSdLazyCounter, 4080 mSolverCounterSat, 575 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2006 SdHoareTripleChecker+Valid, 1934 SdHoareTripleChecker+Invalid, 4655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 575 IncrementalHoareTripleChecker+Valid, 4080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-09 23:05:21,937 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2006 Valid, 1934 Invalid, 4655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [575 Valid, 4080 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-09 23:05:21,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 885 states. [2024-11-09 23:05:21,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 885 to 758. [2024-11-09 23:05:21,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 758 states, 614 states have (on average 1.511400651465798) internal successors, (928), 620 states have internal predecessors, (928), 121 states have call successors, (121), 19 states have call predecessors, (121), 22 states have return successors, (140), 118 states have call predecessors, (140), 118 states have call successors, (140) [2024-11-09 23:05:21,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 758 states to 758 states and 1189 transitions. [2024-11-09 23:05:21,990 INFO L78 Accepts]: Start accepts. Automaton has 758 states and 1189 transitions. Word has length 123 [2024-11-09 23:05:21,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:05:21,990 INFO L471 AbstractCegarLoop]: Abstraction has 758 states and 1189 transitions. [2024-11-09 23:05:21,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 10.214285714285714) internal successors, (143), 11 states have internal predecessors, (143), 4 states have call successors, (32), 6 states have call predecessors, (32), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2024-11-09 23:05:21,991 INFO L276 IsEmpty]: Start isEmpty. Operand 758 states and 1189 transitions. [2024-11-09 23:05:21,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-09 23:05:21,996 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:05:21,996 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 23:05:22,024 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-09 23:05:22,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:05:22,197 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:05:22,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:05:22,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1533858747, now seen corresponding path program 1 times [2024-11-09 23:05:22,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:05:22,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815719074] [2024-11-09 23:05:22,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:05:22,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:05:22,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:22,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:05:22,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:22,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:05:22,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:22,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:05:22,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:22,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:05:22,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:22,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:05:22,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:22,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:05:22,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:22,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-09 23:05:22,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:22,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-09 23:05:22,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:22,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-09 23:05:22,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:22,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-09 23:05:22,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:22,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-09 23:05:22,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:22,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-09 23:05:22,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:22,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-09 23:05:22,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:22,349 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 23:05:22,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:05:22,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815719074] [2024-11-09 23:05:22,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815719074] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:05:22,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:05:22,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:05:22,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030164827] [2024-11-09 23:05:22,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:05:22,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:05:22,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:05:22,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:05:22,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:05:22,353 INFO L87 Difference]: Start difference. First operand 758 states and 1189 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 23:05:23,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:05:23,331 INFO L93 Difference]: Finished difference Result 1899 states and 3036 transitions. [2024-11-09 23:05:23,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 23:05:23,331 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 134 [2024-11-09 23:05:23,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:05:23,336 INFO L225 Difference]: With dead ends: 1899 [2024-11-09 23:05:23,336 INFO L226 Difference]: Without dead ends: 1221 [2024-11-09 23:05:23,338 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-09 23:05:23,338 INFO L432 NwaCegarLoop]: 202 mSDtfsCounter, 1046 mSDsluCounter, 690 mSDsCounter, 0 mSdLazyCounter, 1147 mSolverCounterSat, 327 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1061 SdHoareTripleChecker+Valid, 892 SdHoareTripleChecker+Invalid, 1474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 327 IncrementalHoareTripleChecker+Valid, 1147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 23:05:23,338 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1061 Valid, 892 Invalid, 1474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [327 Valid, 1147 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 23:05:23,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1221 states. [2024-11-09 23:05:23,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1221 to 1110. [2024-11-09 23:05:23,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1110 states, 902 states have (on average 1.5133037694013303) internal successors, (1365), 908 states have internal predecessors, (1365), 185 states have call successors, (185), 19 states have call predecessors, (185), 22 states have return successors, (214), 182 states have call predecessors, (214), 182 states have call successors, (214) [2024-11-09 23:05:23,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1110 states to 1110 states and 1764 transitions. [2024-11-09 23:05:23,369 INFO L78 Accepts]: Start accepts. Automaton has 1110 states and 1764 transitions. Word has length 134 [2024-11-09 23:05:23,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:05:23,369 INFO L471 AbstractCegarLoop]: Abstraction has 1110 states and 1764 transitions. [2024-11-09 23:05:23,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 23:05:23,370 INFO L276 IsEmpty]: Start isEmpty. Operand 1110 states and 1764 transitions. [2024-11-09 23:05:23,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-09 23:05:23,373 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:05:23,373 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 23:05:23,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 23:05:23,373 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:05:23,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:05:23,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1606089256, now seen corresponding path program 1 times [2024-11-09 23:05:23,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:05:23,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214851393] [2024-11-09 23:05:23,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:05:23,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:05:23,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:23,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:05:23,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:23,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:05:23,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:23,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:05:23,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:23,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:05:23,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:23,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:05:23,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:23,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:05:23,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:23,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-09 23:05:23,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:23,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-09 23:05:23,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:23,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-09 23:05:23,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:23,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-09 23:05:23,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:23,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-09 23:05:23,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:23,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-09 23:05:23,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:23,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-09 23:05:23,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:23,443 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 23:05:23,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:05:23,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214851393] [2024-11-09 23:05:23,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214851393] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:05:23,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:05:23,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:05:23,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438275291] [2024-11-09 23:05:23,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:05:23,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:05:23,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:05:23,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:05:23,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:05:23,445 INFO L87 Difference]: Start difference. First operand 1110 states and 1764 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 23:05:24,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:05:24,451 INFO L93 Difference]: Finished difference Result 2769 states and 4446 transitions. [2024-11-09 23:05:24,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 23:05:24,451 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 135 [2024-11-09 23:05:24,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:05:24,458 INFO L225 Difference]: With dead ends: 2769 [2024-11-09 23:05:24,458 INFO L226 Difference]: Without dead ends: 1798 [2024-11-09 23:05:24,462 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-09 23:05:24,462 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 1044 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 1111 mSolverCounterSat, 333 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1059 SdHoareTripleChecker+Valid, 873 SdHoareTripleChecker+Invalid, 1444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 333 IncrementalHoareTripleChecker+Valid, 1111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 23:05:24,462 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1059 Valid, 873 Invalid, 1444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [333 Valid, 1111 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 23:05:24,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1798 states. [2024-11-09 23:05:24,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1798 to 1687. [2024-11-09 23:05:24,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1687 states, 1384 states have (on average 1.5108381502890174) internal successors, (2091), 1390 states have internal predecessors, (2091), 280 states have call successors, (280), 19 states have call predecessors, (280), 22 states have return successors, (309), 277 states have call predecessors, (309), 277 states have call successors, (309) [2024-11-09 23:05:24,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1687 states to 1687 states and 2680 transitions. [2024-11-09 23:05:24,512 INFO L78 Accepts]: Start accepts. Automaton has 1687 states and 2680 transitions. Word has length 135 [2024-11-09 23:05:24,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:05:24,512 INFO L471 AbstractCegarLoop]: Abstraction has 1687 states and 2680 transitions. [2024-11-09 23:05:24,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 23:05:24,512 INFO L276 IsEmpty]: Start isEmpty. Operand 1687 states and 2680 transitions. [2024-11-09 23:05:24,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-09 23:05:24,517 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:05:24,517 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 23:05:24,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 23:05:24,518 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:05:24,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:05:24,518 INFO L85 PathProgramCache]: Analyzing trace with hash 725442981, now seen corresponding path program 1 times [2024-11-09 23:05:24,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:05:24,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838872984] [2024-11-09 23:05:24,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:05:24,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:05:24,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:24,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:05:24,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:24,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:05:24,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:24,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:05:24,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:24,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:05:24,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:24,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:05:24,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:24,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:05:24,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:24,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-09 23:05:24,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:24,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-09 23:05:24,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:24,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-09 23:05:24,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:24,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-09 23:05:24,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:24,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-09 23:05:24,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:24,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-09 23:05:24,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:24,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-09 23:05:24,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:24,598 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 23:05:24,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:05:24,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838872984] [2024-11-09 23:05:24,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838872984] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:05:24,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:05:24,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:05:24,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573802011] [2024-11-09 23:05:24,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:05:24,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:05:24,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:05:24,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:05:24,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:05:24,600 INFO L87 Difference]: Start difference. First operand 1687 states and 2680 transitions. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 23:05:25,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:05:25,536 INFO L93 Difference]: Finished difference Result 4078 states and 6571 transitions. [2024-11-09 23:05:25,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 23:05:25,537 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 136 [2024-11-09 23:05:25,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:05:25,545 INFO L225 Difference]: With dead ends: 4078 [2024-11-09 23:05:25,546 INFO L226 Difference]: Without dead ends: 2679 [2024-11-09 23:05:25,549 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-09 23:05:25,549 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 1041 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 1095 mSolverCounterSat, 325 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1056 SdHoareTripleChecker+Valid, 864 SdHoareTripleChecker+Invalid, 1420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 325 IncrementalHoareTripleChecker+Valid, 1095 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 23:05:25,549 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1056 Valid, 864 Invalid, 1420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [325 Valid, 1095 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 23:05:25,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2679 states. [2024-11-09 23:05:25,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2679 to 2568. [2024-11-09 23:05:25,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2568 states, 2142 states have (on average 1.5084033613445378) internal successors, (3231), 2148 states have internal predecessors, (3231), 403 states have call successors, (403), 19 states have call predecessors, (403), 22 states have return successors, (448), 400 states have call predecessors, (448), 400 states have call successors, (448) [2024-11-09 23:05:25,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2568 states to 2568 states and 4082 transitions. [2024-11-09 23:05:25,632 INFO L78 Accepts]: Start accepts. Automaton has 2568 states and 4082 transitions. Word has length 136 [2024-11-09 23:05:25,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:05:25,633 INFO L471 AbstractCegarLoop]: Abstraction has 2568 states and 4082 transitions. [2024-11-09 23:05:25,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 23:05:25,633 INFO L276 IsEmpty]: Start isEmpty. Operand 2568 states and 4082 transitions. [2024-11-09 23:05:25,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-09 23:05:25,639 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:05:25,639 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 23:05:25,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 23:05:25,640 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:05:25,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:05:25,640 INFO L85 PathProgramCache]: Analyzing trace with hash 41186088, now seen corresponding path program 1 times [2024-11-09 23:05:25,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:05:25,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027822167] [2024-11-09 23:05:25,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:05:25,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:05:25,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:25,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:05:25,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:25,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:05:25,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:25,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:05:25,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:25,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:05:25,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:25,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:05:25,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:25,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:05:25,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:25,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-09 23:05:25,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:25,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-09 23:05:25,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:25,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-09 23:05:25,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:25,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-09 23:05:25,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:25,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-09 23:05:25,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:25,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-09 23:05:25,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:25,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-09 23:05:25,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:25,736 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 23:05:25,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:05:25,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027822167] [2024-11-09 23:05:25,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027822167] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:05:25,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:05:25,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:05:25,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790348708] [2024-11-09 23:05:25,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:05:25,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:05:25,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:05:25,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:05:25,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:05:25,737 INFO L87 Difference]: Start difference. First operand 2568 states and 4082 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 23:05:26,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:05:26,788 INFO L93 Difference]: Finished difference Result 6129 states and 9893 transitions. [2024-11-09 23:05:26,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 23:05:26,788 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 137 [2024-11-09 23:05:26,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:05:26,808 INFO L225 Difference]: With dead ends: 6129 [2024-11-09 23:05:26,808 INFO L226 Difference]: Without dead ends: 4094 [2024-11-09 23:05:26,814 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-09 23:05:26,815 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 1038 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 1100 mSolverCounterSat, 325 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1053 SdHoareTripleChecker+Valid, 864 SdHoareTripleChecker+Invalid, 1425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 325 IncrementalHoareTripleChecker+Valid, 1100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 23:05:26,816 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1053 Valid, 864 Invalid, 1425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [325 Valid, 1100 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 23:05:26,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4094 states. [2024-11-09 23:05:26,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4094 to 3983. [2024-11-09 23:05:26,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3983 states, 3378 states have (on average 1.5050325636471285) internal successors, (5084), 3384 states have internal predecessors, (5084), 582 states have call successors, (582), 19 states have call predecessors, (582), 22 states have return successors, (653), 579 states have call predecessors, (653), 579 states have call successors, (653) [2024-11-09 23:05:26,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3983 states to 3983 states and 6319 transitions. [2024-11-09 23:05:26,940 INFO L78 Accepts]: Start accepts. Automaton has 3983 states and 6319 transitions. Word has length 137 [2024-11-09 23:05:26,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:05:26,940 INFO L471 AbstractCegarLoop]: Abstraction has 3983 states and 6319 transitions. [2024-11-09 23:05:26,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 23:05:26,940 INFO L276 IsEmpty]: Start isEmpty. Operand 3983 states and 6319 transitions. [2024-11-09 23:05:26,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-09 23:05:26,949 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:05:26,949 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 23:05:26,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 23:05:26,949 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:05:26,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:05:26,950 INFO L85 PathProgramCache]: Analyzing trace with hash -2089200795, now seen corresponding path program 1 times [2024-11-09 23:05:26,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:05:26,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522946627] [2024-11-09 23:05:26,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:05:26,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:05:26,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:26,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:05:26,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:27,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:05:27,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:27,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:05:27,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:27,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:05:27,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:27,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:05:27,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:27,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:05:27,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:27,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-09 23:05:27,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:27,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-09 23:05:27,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:27,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-09 23:05:27,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:27,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-09 23:05:27,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:27,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-09 23:05:27,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:27,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-09 23:05:27,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:27,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-09 23:05:27,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:27,034 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 23:05:27,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:05:27,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522946627] [2024-11-09 23:05:27,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522946627] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:05:27,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:05:27,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:05:27,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325115902] [2024-11-09 23:05:27,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:05:27,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:05:27,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:05:27,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:05:27,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:05:27,035 INFO L87 Difference]: Start difference. First operand 3983 states and 6319 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 23:05:28,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:05:28,014 INFO L93 Difference]: Finished difference Result 9797 states and 15804 transitions. [2024-11-09 23:05:28,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 23:05:28,014 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 138 [2024-11-09 23:05:28,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:05:28,035 INFO L225 Difference]: With dead ends: 9797 [2024-11-09 23:05:28,035 INFO L226 Difference]: Without dead ends: 6641 [2024-11-09 23:05:28,042 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-09 23:05:28,042 INFO L432 NwaCegarLoop]: 200 mSDtfsCounter, 1034 mSDsluCounter, 701 mSDsCounter, 0 mSdLazyCounter, 1135 mSolverCounterSat, 327 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1049 SdHoareTripleChecker+Valid, 901 SdHoareTripleChecker+Invalid, 1462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 327 IncrementalHoareTripleChecker+Valid, 1135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 23:05:28,043 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1049 Valid, 901 Invalid, 1462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [327 Valid, 1135 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 23:05:28,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6641 states. [2024-11-09 23:05:28,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6641 to 6530. [2024-11-09 23:05:28,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6530 states, 5549 states have (on average 1.4950441520994773) internal successors, (8296), 5555 states have internal predecessors, (8296), 958 states have call successors, (958), 19 states have call predecessors, (958), 22 states have return successors, (1073), 955 states have call predecessors, (1073), 955 states have call successors, (1073) [2024-11-09 23:05:28,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6530 states to 6530 states and 10327 transitions. [2024-11-09 23:05:28,291 INFO L78 Accepts]: Start accepts. Automaton has 6530 states and 10327 transitions. Word has length 138 [2024-11-09 23:05:28,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:05:28,291 INFO L471 AbstractCegarLoop]: Abstraction has 6530 states and 10327 transitions. [2024-11-09 23:05:28,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 23:05:28,292 INFO L276 IsEmpty]: Start isEmpty. Operand 6530 states and 10327 transitions. [2024-11-09 23:05:28,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-09 23:05:28,303 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:05:28,303 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 23:05:28,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 23:05:28,303 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:05:28,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:05:28,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1603732328, now seen corresponding path program 1 times [2024-11-09 23:05:28,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:05:28,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16895751] [2024-11-09 23:05:28,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:05:28,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:05:28,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:28,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:05:28,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:28,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:05:28,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:28,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:05:28,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:28,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:05:28,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:28,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:05:28,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:28,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:05:28,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:28,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-09 23:05:28,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:28,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-09 23:05:28,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:28,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-09 23:05:28,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:28,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-09 23:05:28,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:28,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-09 23:05:28,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:28,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-09 23:05:28,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:28,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-09 23:05:28,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:28,375 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 23:05:28,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:05:28,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16895751] [2024-11-09 23:05:28,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16895751] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:05:28,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:05:28,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:05:28,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332981105] [2024-11-09 23:05:28,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:05:28,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:05:28,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:05:28,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:05:28,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:05:28,376 INFO L87 Difference]: Start difference. First operand 6530 states and 10327 transitions. Second operand has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 23:05:29,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:05:29,460 INFO L93 Difference]: Finished difference Result 16305 states and 26191 transitions. [2024-11-09 23:05:29,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 23:05:29,460 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 139 [2024-11-09 23:05:29,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:05:29,503 INFO L225 Difference]: With dead ends: 16305 [2024-11-09 23:05:29,503 INFO L226 Difference]: Without dead ends: 11066 [2024-11-09 23:05:29,515 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-09 23:05:29,515 INFO L432 NwaCegarLoop]: 190 mSDtfsCounter, 1031 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 1116 mSolverCounterSat, 331 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1046 SdHoareTripleChecker+Valid, 872 SdHoareTripleChecker+Invalid, 1447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 331 IncrementalHoareTripleChecker+Valid, 1116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 23:05:29,515 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1046 Valid, 872 Invalid, 1447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [331 Valid, 1116 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 23:05:29,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11066 states. [2024-11-09 23:05:29,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11066 to 10955. [2024-11-09 23:05:29,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10955 states, 9368 states have (on average 1.4885781383432963) internal successors, (13945), 9374 states have internal predecessors, (13945), 1564 states have call successors, (1564), 19 states have call predecessors, (1564), 22 states have return successors, (1757), 1561 states have call predecessors, (1757), 1561 states have call successors, (1757) [2024-11-09 23:05:29,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10955 states to 10955 states and 17266 transitions. [2024-11-09 23:05:29,840 INFO L78 Accepts]: Start accepts. Automaton has 10955 states and 17266 transitions. Word has length 139 [2024-11-09 23:05:29,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:05:29,840 INFO L471 AbstractCegarLoop]: Abstraction has 10955 states and 17266 transitions. [2024-11-09 23:05:29,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 23:05:29,841 INFO L276 IsEmpty]: Start isEmpty. Operand 10955 states and 17266 transitions. [2024-11-09 23:05:29,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-09 23:05:29,855 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:05:29,855 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 23:05:29,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 23:05:29,856 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:05:29,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:05:29,856 INFO L85 PathProgramCache]: Analyzing trace with hash 301630661, now seen corresponding path program 1 times [2024-11-09 23:05:29,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:05:29,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597622005] [2024-11-09 23:05:29,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:05:29,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:05:29,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:29,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:05:29,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:29,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:05:29,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:29,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:05:29,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:29,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:05:29,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:29,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:05:29,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:29,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:05:29,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:29,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-09 23:05:29,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:29,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-09 23:05:29,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:29,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-09 23:05:29,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:29,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-09 23:05:29,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:29,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-09 23:05:29,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:29,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-09 23:05:29,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:29,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-09 23:05:29,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:29,936 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 23:05:29,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:05:29,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597622005] [2024-11-09 23:05:29,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597622005] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:05:29,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:05:29,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:05:29,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630379392] [2024-11-09 23:05:29,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:05:29,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:05:29,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:05:29,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:05:29,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:05:29,939 INFO L87 Difference]: Start difference. First operand 10955 states and 17266 transitions. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 23:05:31,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:05:31,204 INFO L93 Difference]: Finished difference Result 28544 states and 45687 transitions. [2024-11-09 23:05:31,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 23:05:31,204 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 140 [2024-11-09 23:05:31,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:05:31,254 INFO L225 Difference]: With dead ends: 28544 [2024-11-09 23:05:31,255 INFO L226 Difference]: Without dead ends: 19418 [2024-11-09 23:05:31,276 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-09 23:05:31,277 INFO L432 NwaCegarLoop]: 199 mSDtfsCounter, 1028 mSDsluCounter, 696 mSDsCounter, 0 mSdLazyCounter, 1139 mSolverCounterSat, 331 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1043 SdHoareTripleChecker+Valid, 895 SdHoareTripleChecker+Invalid, 1470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 331 IncrementalHoareTripleChecker+Valid, 1139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 23:05:31,277 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1043 Valid, 895 Invalid, 1470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [331 Valid, 1139 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 23:05:31,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19418 states. [2024-11-09 23:05:31,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19418 to 19307. [2024-11-09 23:05:31,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19307 states, 16517 states have (on average 1.478113458860568) internal successors, (24414), 16523 states have internal predecessors, (24414), 2767 states have call successors, (2767), 19 states have call predecessors, (2767), 22 states have return successors, (3104), 2764 states have call predecessors, (3104), 2764 states have call successors, (3104) [2024-11-09 23:05:32,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19307 states to 19307 states and 30285 transitions. [2024-11-09 23:05:32,130 INFO L78 Accepts]: Start accepts. Automaton has 19307 states and 30285 transitions. Word has length 140 [2024-11-09 23:05:32,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:05:32,131 INFO L471 AbstractCegarLoop]: Abstraction has 19307 states and 30285 transitions. [2024-11-09 23:05:32,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 23:05:32,131 INFO L276 IsEmpty]: Start isEmpty. Operand 19307 states and 30285 transitions. [2024-11-09 23:05:32,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-09 23:05:32,153 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:05:32,153 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 23:05:32,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 23:05:32,154 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:05:32,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:05:32,154 INFO L85 PathProgramCache]: Analyzing trace with hash -146407512, now seen corresponding path program 1 times [2024-11-09 23:05:32,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:05:32,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516362394] [2024-11-09 23:05:32,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:05:32,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:05:32,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:32,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:05:32,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:32,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:05:32,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:32,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:05:32,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:32,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:05:32,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:32,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:05:32,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:32,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:05:32,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:32,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-09 23:05:32,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:32,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-09 23:05:32,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:32,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-09 23:05:32,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:32,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-09 23:05:32,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:32,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-09 23:05:32,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:32,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-09 23:05:32,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:32,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-09 23:05:32,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:32,227 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 23:05:32,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:05:32,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516362394] [2024-11-09 23:05:32,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516362394] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:05:32,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:05:32,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:05:32,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650619198] [2024-11-09 23:05:32,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:05:32,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:05:32,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:05:32,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:05:32,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:05:32,229 INFO L87 Difference]: Start difference. First operand 19307 states and 30285 transitions. Second operand has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 23:05:33,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:05:33,539 INFO L93 Difference]: Finished difference Result 51492 states and 82066 transitions. [2024-11-09 23:05:33,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 23:05:33,539 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 141 [2024-11-09 23:05:33,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:05:33,667 INFO L225 Difference]: With dead ends: 51492 [2024-11-09 23:05:33,668 INFO L226 Difference]: Without dead ends: 34770 [2024-11-09 23:05:33,706 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-09 23:05:33,706 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 1026 mSDsluCounter, 678 mSDsCounter, 0 mSdLazyCounter, 1097 mSolverCounterSat, 333 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1041 SdHoareTripleChecker+Valid, 865 SdHoareTripleChecker+Invalid, 1430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 333 IncrementalHoareTripleChecker+Valid, 1097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 23:05:33,707 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1041 Valid, 865 Invalid, 1430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [333 Valid, 1097 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 23:05:33,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34770 states. [2024-11-09 23:05:34,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34770 to 34659. [2024-11-09 23:05:34,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34659 states, 29830 states have (on average 1.4709353000335232) internal successors, (43878), 29836 states have internal predecessors, (43878), 4806 states have call successors, (4806), 19 states have call predecessors, (4806), 22 states have return successors, (5417), 4803 states have call predecessors, (5417), 4803 states have call successors, (5417) [2024-11-09 23:05:35,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34659 states to 34659 states and 54101 transitions. [2024-11-09 23:05:35,047 INFO L78 Accepts]: Start accepts. Automaton has 34659 states and 54101 transitions. Word has length 141 [2024-11-09 23:05:35,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:05:35,047 INFO L471 AbstractCegarLoop]: Abstraction has 34659 states and 54101 transitions. [2024-11-09 23:05:35,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 23:05:35,048 INFO L276 IsEmpty]: Start isEmpty. Operand 34659 states and 54101 transitions. [2024-11-09 23:05:35,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-09 23:05:35,069 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:05:35,069 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 23:05:35,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-09 23:05:35,069 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:05:35,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:05:35,070 INFO L85 PathProgramCache]: Analyzing trace with hash 163547653, now seen corresponding path program 1 times [2024-11-09 23:05:35,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:05:35,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042585707] [2024-11-09 23:05:35,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:05:35,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:05:35,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:35,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:05:35,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:35,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:05:35,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:35,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:05:35,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:35,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:05:35,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:35,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:05:35,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:35,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:05:35,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:35,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-09 23:05:35,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:35,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-09 23:05:35,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:35,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-09 23:05:35,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:35,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-09 23:05:35,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:35,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-09 23:05:35,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:35,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-09 23:05:35,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:35,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-09 23:05:35,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:35,216 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 23:05:35,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:05:35,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042585707] [2024-11-09 23:05:35,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042585707] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:05:35,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:05:35,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:05:35,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313541692] [2024-11-09 23:05:35,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:05:35,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:05:35,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:05:35,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:05:35,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:05:35,219 INFO L87 Difference]: Start difference. First operand 34659 states and 54101 transitions. Second operand has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 23:05:37,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:05:37,564 INFO L93 Difference]: Finished difference Result 95081 states and 150257 transitions. [2024-11-09 23:05:37,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 23:05:37,565 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 142 [2024-11-09 23:05:37,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:05:37,748 INFO L225 Difference]: With dead ends: 95081 [2024-11-09 23:05:37,748 INFO L226 Difference]: Without dead ends: 63925 [2024-11-09 23:05:37,805 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-09 23:05:37,806 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 1022 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 1114 mSolverCounterSat, 331 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1037 SdHoareTripleChecker+Valid, 873 SdHoareTripleChecker+Invalid, 1445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 331 IncrementalHoareTripleChecker+Valid, 1114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 23:05:37,806 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1037 Valid, 873 Invalid, 1445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [331 Valid, 1114 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 23:05:37,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63925 states. [2024-11-09 23:05:39,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63925 to 63814. [2024-11-09 23:05:39,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63814 states, 55270 states have (on average 1.4629455400759905) internal successors, (80857), 55276 states have internal predecessors, (80857), 8521 states have call successors, (8521), 19 states have call predecessors, (8521), 22 states have return successors, (9664), 8518 states have call predecessors, (9664), 8518 states have call successors, (9664) [2024-11-09 23:05:39,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63814 states to 63814 states and 99042 transitions. [2024-11-09 23:05:40,022 INFO L78 Accepts]: Start accepts. Automaton has 63814 states and 99042 transitions. Word has length 142 [2024-11-09 23:05:40,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:05:40,023 INFO L471 AbstractCegarLoop]: Abstraction has 63814 states and 99042 transitions. [2024-11-09 23:05:40,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 23:05:40,023 INFO L276 IsEmpty]: Start isEmpty. Operand 63814 states and 99042 transitions. [2024-11-09 23:05:40,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-09 23:05:40,050 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:05:40,050 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 23:05:40,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-09 23:05:40,051 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:05:40,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:05:40,051 INFO L85 PathProgramCache]: Analyzing trace with hash 132019272, now seen corresponding path program 1 times [2024-11-09 23:05:40,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:05:40,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25126543] [2024-11-09 23:05:40,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:05:40,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:05:40,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:40,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:05:40,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:40,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:05:40,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:40,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:05:40,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:40,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:05:40,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:40,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:05:40,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:40,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:05:40,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:40,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-09 23:05:40,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:40,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-09 23:05:40,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:40,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-09 23:05:40,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:40,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-09 23:05:40,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:40,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-09 23:05:40,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:40,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-09 23:05:40,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:40,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-09 23:05:40,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:40,148 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 23:05:40,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:05:40,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25126543] [2024-11-09 23:05:40,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25126543] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:05:40,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:05:40,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:05:40,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636407127] [2024-11-09 23:05:40,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:05:40,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:05:40,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:05:40,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:05:40,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:05:40,150 INFO L87 Difference]: Start difference. First operand 63814 states and 99042 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 23:05:43,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:05:43,188 INFO L93 Difference]: Finished difference Result 119945 states and 189280 transitions. [2024-11-09 23:05:43,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 23:05:43,189 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 143 [2024-11-09 23:05:43,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:05:43,620 INFO L225 Difference]: With dead ends: 119945 [2024-11-09 23:05:43,620 INFO L226 Difference]: Without dead ends: 119799 [2024-11-09 23:05:43,667 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-09 23:05:43,669 INFO L432 NwaCegarLoop]: 197 mSDtfsCounter, 1016 mSDsluCounter, 706 mSDsCounter, 0 mSdLazyCounter, 1120 mSolverCounterSat, 322 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1030 SdHoareTripleChecker+Valid, 903 SdHoareTripleChecker+Invalid, 1442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 322 IncrementalHoareTripleChecker+Valid, 1120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:05:43,670 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1030 Valid, 903 Invalid, 1442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [322 Valid, 1120 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 23:05:43,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119799 states. [2024-11-09 23:05:47,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119799 to 119688. [2024-11-09 23:05:47,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119688 states, 104345 states have (on average 1.4540131295222578) internal successors, (151719), 104351 states have internal predecessors, (151719), 15320 states have call successors, (15320), 19 states have call predecessors, (15320), 22 states have return successors, (17509), 15317 states have call predecessors, (17509), 15317 states have call successors, (17509) [2024-11-09 23:05:47,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119688 states to 119688 states and 184548 transitions. [2024-11-09 23:05:47,638 INFO L78 Accepts]: Start accepts. Automaton has 119688 states and 184548 transitions. Word has length 143 [2024-11-09 23:05:47,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:05:47,639 INFO L471 AbstractCegarLoop]: Abstraction has 119688 states and 184548 transitions. [2024-11-09 23:05:47,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 23:05:47,639 INFO L276 IsEmpty]: Start isEmpty. Operand 119688 states and 184548 transitions. [2024-11-09 23:05:47,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-09 23:05:47,663 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:05:47,663 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 23:05:47,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-09 23:05:47,663 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:05:47,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:05:47,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1424356165, now seen corresponding path program 1 times [2024-11-09 23:05:47,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:05:47,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960266983] [2024-11-09 23:05:47,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:05:47,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:05:47,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:47,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:05:47,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:47,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:05:47,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:47,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:05:47,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:47,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:05:47,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:47,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:05:47,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:47,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:05:47,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:47,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-09 23:05:47,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:47,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-09 23:05:47,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:47,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-09 23:05:47,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:47,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-09 23:05:47,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:47,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-09 23:05:47,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:47,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-09 23:05:47,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:47,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-09 23:05:47,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:47,890 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 23:05:47,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:05:47,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960266983] [2024-11-09 23:05:47,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960266983] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:05:47,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:05:47,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-09 23:05:47,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604623866] [2024-11-09 23:05:47,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:05:47,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 23:05:47,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:05:47,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 23:05:47,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-09 23:05:47,892 INFO L87 Difference]: Start difference. First operand 119688 states and 184548 transitions. Second operand has 13 states, 13 states have (on average 7.846153846153846) internal successors, (102), 8 states have internal predecessors, (102), 3 states have call successors, (16), 7 states have call predecessors, (16), 2 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-09 23:05:53,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:05:53,519 INFO L93 Difference]: Finished difference Result 120549 states and 189053 transitions. [2024-11-09 23:05:53,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-09 23:05:53,520 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.846153846153846) internal successors, (102), 8 states have internal predecessors, (102), 3 states have call successors, (16), 7 states have call predecessors, (16), 2 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) Word has length 144 [2024-11-09 23:05:53,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:05:53,924 INFO L225 Difference]: With dead ends: 120549 [2024-11-09 23:05:53,925 INFO L226 Difference]: Without dead ends: 120409 [2024-11-09 23:05:53,958 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 430 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=399, Invalid=1323, Unknown=0, NotChecked=0, Total=1722 [2024-11-09 23:05:53,959 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 2308 mSDsluCounter, 1125 mSDsCounter, 0 mSdLazyCounter, 5060 mSolverCounterSat, 566 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2308 SdHoareTripleChecker+Valid, 1321 SdHoareTripleChecker+Invalid, 5626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 566 IncrementalHoareTripleChecker+Valid, 5060 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:05:53,960 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2308 Valid, 1321 Invalid, 5626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [566 Valid, 5060 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-09 23:05:54,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120409 states. [2024-11-09 23:05:57,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120409 to 120061. [2024-11-09 23:05:57,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120061 states, 104645 states have (on average 1.4540111806584166) internal successors, (152155), 104654 states have internal predecessors, (152155), 15359 states have call successors, (15359), 48 states have call predecessors, (15359), 56 states have return successors, (17554), 15358 states have call predecessors, (17554), 15353 states have call successors, (17554) [2024-11-09 23:05:57,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120061 states to 120061 states and 185068 transitions. [2024-11-09 23:05:57,719 INFO L78 Accepts]: Start accepts. Automaton has 120061 states and 185068 transitions. Word has length 144 [2024-11-09 23:05:57,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:05:57,720 INFO L471 AbstractCegarLoop]: Abstraction has 120061 states and 185068 transitions. [2024-11-09 23:05:57,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.846153846153846) internal successors, (102), 8 states have internal predecessors, (102), 3 states have call successors, (16), 7 states have call predecessors, (16), 2 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-09 23:05:57,720 INFO L276 IsEmpty]: Start isEmpty. Operand 120061 states and 185068 transitions. [2024-11-09 23:05:57,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-09 23:05:57,745 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:05:57,745 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 23:05:57,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-09 23:05:57,745 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:05:57,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:05:57,745 INFO L85 PathProgramCache]: Analyzing trace with hash 300417608, now seen corresponding path program 1 times [2024-11-09 23:05:57,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:05:57,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570378346] [2024-11-09 23:05:57,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:05:57,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:05:57,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:58,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:05:58,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:58,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:05:58,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:58,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:05:58,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:58,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:05:58,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:58,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:05:58,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:58,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:05:58,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:58,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-09 23:05:58,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:58,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-09 23:05:58,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:58,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-09 23:05:58,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:58,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-09 23:05:58,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:58,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-09 23:05:58,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:58,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-09 23:05:58,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:58,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-09 23:05:58,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:05:58,401 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 23:05:58,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:05:58,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570378346] [2024-11-09 23:05:58,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570378346] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:05:58,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:05:58,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-09 23:05:58,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289834844] [2024-11-09 23:05:58,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:05:58,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-09 23:05:58,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:05:58,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-09 23:05:58,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2024-11-09 23:05:58,403 INFO L87 Difference]: Start difference. First operand 120061 states and 185068 transitions. Second operand has 15 states, 13 states have (on average 7.923076923076923) internal successors, (103), 10 states have internal predecessors, (103), 6 states have call successors, (16), 7 states have call predecessors, (16), 2 states have return successors, (13), 4 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-09 23:06:03,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:06:03,587 INFO L93 Difference]: Finished difference Result 121244 states and 190032 transitions. [2024-11-09 23:06:03,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-09 23:06:03,588 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 7.923076923076923) internal successors, (103), 10 states have internal predecessors, (103), 6 states have call successors, (16), 7 states have call predecessors, (16), 2 states have return successors, (13), 4 states have call predecessors, (13), 5 states have call successors, (13) Word has length 145 [2024-11-09 23:06:03,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:06:03,992 INFO L225 Difference]: With dead ends: 121244 [2024-11-09 23:06:03,993 INFO L226 Difference]: Without dead ends: 120312 [2024-11-09 23:06:04,027 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 428 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=344, Invalid=1636, Unknown=0, NotChecked=0, Total=1980 [2024-11-09 23:06:04,028 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 1459 mSDsluCounter, 1935 mSDsCounter, 0 mSdLazyCounter, 4755 mSolverCounterSat, 446 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1459 SdHoareTripleChecker+Valid, 2124 SdHoareTripleChecker+Invalid, 5201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 446 IncrementalHoareTripleChecker+Valid, 4755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:06:04,028 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1459 Valid, 2124 Invalid, 5201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [446 Valid, 4755 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-09 23:06:04,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120312 states. [2024-11-09 23:06:07,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120312 to 120022. [2024-11-09 23:06:07,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120022 states, 104613 states have (on average 1.4540353493351688) internal successors, (152111), 104623 states have internal predecessors, (152111), 15357 states have call successors, (15357), 44 states have call predecessors, (15357), 51 states have return successors, (17552), 15354 states have call predecessors, (17552), 15352 states have call successors, (17552) [2024-11-09 23:06:07,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120022 states to 120022 states and 185020 transitions. [2024-11-09 23:06:07,643 INFO L78 Accepts]: Start accepts. Automaton has 120022 states and 185020 transitions. Word has length 145 [2024-11-09 23:06:07,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:06:07,645 INFO L471 AbstractCegarLoop]: Abstraction has 120022 states and 185020 transitions. [2024-11-09 23:06:07,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 7.923076923076923) internal successors, (103), 10 states have internal predecessors, (103), 6 states have call successors, (16), 7 states have call predecessors, (16), 2 states have return successors, (13), 4 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-09 23:06:07,645 INFO L276 IsEmpty]: Start isEmpty. Operand 120022 states and 185020 transitions. [2024-11-09 23:06:07,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-09 23:06:07,691 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:06:07,692 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 23:06:07,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-09 23:06:07,692 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:06:07,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:06:07,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1943762307, now seen corresponding path program 1 times [2024-11-09 23:06:07,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:06:07,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145799788] [2024-11-09 23:06:07,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:06:07,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:06:07,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:06:08,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:06:08,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:06:08,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:06:08,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:06:08,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:06:08,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:06:08,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:06:08,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:06:08,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:06:08,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:06:08,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:06:08,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:06:08,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-09 23:06:08,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:06:08,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-09 23:06:08,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:06:08,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-09 23:06:08,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:06:08,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-09 23:06:08,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:06:08,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-09 23:06:08,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:06:08,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-09 23:06:08,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:06:08,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-09 23:06:08,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:06:08,568 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-09 23:06:08,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:06:08,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145799788] [2024-11-09 23:06:08,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145799788] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:06:08,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1123470902] [2024-11-09 23:06:08,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:06:08,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:06:08,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:06:08,571 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) [2024-11-09 23:06:08,577 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 23:06:08,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:06:08,859 INFO L255 TraceCheckSpWp]: Trace formula consists of 1133 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-09 23:06:08,864 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:06:09,180 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 23:06:09,180 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 23:06:09,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1123470902] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:06:09,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 23:06:09,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [20] total 31 [2024-11-09 23:06:09,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026118686] [2024-11-09 23:06:09,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:06:09,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 23:06:09,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:06:09,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 23:06:09,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=857, Unknown=0, NotChecked=0, Total=930 [2024-11-09 23:06:09,183 INFO L87 Difference]: Start difference. First operand 120022 states and 185020 transitions. Second operand has 13 states, 12 states have (on average 9.416666666666666) internal successors, (113), 11 states have internal predecessors, (113), 6 states have call successors, (16), 5 states have call predecessors, (16), 6 states have return successors, (13), 7 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-09 23:06:11,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:06:11,941 INFO L93 Difference]: Finished difference Result 120758 states and 186041 transitions. [2024-11-09 23:06:11,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-09 23:06:11,942 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 9.416666666666666) internal successors, (113), 11 states have internal predecessors, (113), 6 states have call successors, (16), 5 states have call predecessors, (16), 6 states have return successors, (13), 7 states have call predecessors, (13), 5 states have call successors, (13) Word has length 148 [2024-11-09 23:06:11,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:06:12,301 INFO L225 Difference]: With dead ends: 120758 [2024-11-09 23:06:12,302 INFO L226 Difference]: Without dead ends: 120596 [2024-11-09 23:06:12,349 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=200, Invalid=1870, Unknown=0, NotChecked=0, Total=2070 [2024-11-09 23:06:12,349 INFO L432 NwaCegarLoop]: 470 mSDtfsCounter, 702 mSDsluCounter, 4533 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 706 SdHoareTripleChecker+Valid, 5003 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 23:06:12,349 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [706 Valid, 5003 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 23:06:12,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120596 states.