./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec6_product12.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec6_product12.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 6a023004d1923934c700fbd43377f50b99f9b3dcadd2a9eb1f89b20b18aa1436 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 00:52:01,630 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 00:52:01,700 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 00:52:01,707 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 00:52:01,708 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 00:52:01,735 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 00:52:01,736 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 00:52:01,736 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 00:52:01,737 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 00:52:01,737 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 00:52:01,737 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 00:52:01,738 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 00:52:01,738 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 00:52:01,739 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 00:52:01,739 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 00:52:01,739 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 00:52:01,740 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 00:52:01,740 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 00:52:01,740 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 00:52:01,741 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 00:52:01,741 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 00:52:01,742 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 00:52:01,742 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 00:52:01,742 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 00:52:01,743 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 00:52:01,743 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 00:52:01,743 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 00:52:01,744 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 00:52:01,744 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 00:52:01,744 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 00:52:01,745 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 00:52:01,745 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 00:52:01,745 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 00:52:01,746 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 00:52:01,746 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 00:52:01,746 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 00:52:01,747 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 00:52:01,747 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 00:52:01,747 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 00:52:01,748 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 00:52:01,748 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 00:52:01,749 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 00:52:01,749 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6a023004d1923934c700fbd43377f50b99f9b3dcadd2a9eb1f89b20b18aa1436 [2024-10-24 00:52:01,989 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 00:52:02,011 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 00:52:02,015 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 00:52:02,017 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 00:52:02,017 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 00:52:02,018 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec6_product12.cil.c [2024-10-24 00:52:03,510 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 00:52:03,791 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 00:52:03,795 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec6_product12.cil.c [2024-10-24 00:52:03,824 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/148fe4e97/481372ec695048bb9fe5a0a0d25e4a24/FLAG3676405b9 [2024-10-24 00:52:03,837 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/148fe4e97/481372ec695048bb9fe5a0a0d25e4a24 [2024-10-24 00:52:03,839 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 00:52:03,840 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 00:52:03,841 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 00:52:03,841 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 00:52:03,846 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 00:52:03,847 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:52:03" (1/1) ... [2024-10-24 00:52:03,848 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c78fa8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:52:03, skipping insertion in model container [2024-10-24 00:52:03,848 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:52:03" (1/1) ... [2024-10-24 00:52:03,927 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 00:52:04,421 WARN L248 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_spec6_product12.cil.c[52000,52013] [2024-10-24 00:52:04,460 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 00:52:04,473 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 00:52:04,483 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [48] [2024-10-24 00:52:04,484 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [97] [2024-10-24 00:52:04,485 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [210] [2024-10-24 00:52:04,485 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [576] [2024-10-24 00:52:04,485 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [864] [2024-10-24 00:52:04,485 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1937] [2024-10-24 00:52:04,485 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2342] [2024-10-24 00:52:04,486 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2351] [2024-10-24 00:52:04,486 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptDecrypt_spec.i","") [2583] [2024-10-24 00:52:04,486 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2629] [2024-10-24 00:52:04,486 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2646] [2024-10-24 00:52:04,583 WARN L248 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_spec6_product12.cil.c[52000,52013] [2024-10-24 00:52:04,598 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 00:52:04,635 INFO L204 MainTranslator]: Completed translation [2024-10-24 00:52:04,636 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:52:04 WrapperNode [2024-10-24 00:52:04,636 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 00:52:04,637 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 00:52:04,637 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 00:52:04,637 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 00:52:04,644 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:52:04" (1/1) ... [2024-10-24 00:52:04,679 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:52:04" (1/1) ... [2024-10-24 00:52:04,738 INFO L138 Inliner]: procedures = 123, calls = 179, calls flagged for inlining = 49, calls inlined = 39, statements flattened = 811 [2024-10-24 00:52:04,739 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 00:52:04,740 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 00:52:04,740 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 00:52:04,740 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 00:52:04,751 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:52:04" (1/1) ... [2024-10-24 00:52:04,752 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:52:04" (1/1) ... [2024-10-24 00:52:04,758 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:52:04" (1/1) ... [2024-10-24 00:52:04,793 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]. [2024-10-24 00:52:04,797 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:52:04" (1/1) ... [2024-10-24 00:52:04,798 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:52:04" (1/1) ... [2024-10-24 00:52:04,818 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:52:04" (1/1) ... [2024-10-24 00:52:04,830 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:52:04" (1/1) ... [2024-10-24 00:52:04,838 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:52:04" (1/1) ... [2024-10-24 00:52:04,846 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:52:04" (1/1) ... [2024-10-24 00:52:04,861 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 00:52:04,862 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 00:52:04,865 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 00:52:04,865 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 00:52:04,866 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:52:04" (1/1) ... [2024-10-24 00:52:04,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 00:52:04,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:52:04,901 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) [2024-10-24 00:52:04,904 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 [2024-10-24 00:52:04,946 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2024-10-24 00:52:04,946 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2024-10-24 00:52:04,946 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-10-24 00:52:04,947 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-10-24 00:52:04,947 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-10-24 00:52:04,947 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-10-24 00:52:04,947 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-10-24 00:52:04,947 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-10-24 00:52:04,948 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-10-24 00:52:04,948 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-10-24 00:52:04,948 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-10-24 00:52:04,948 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-10-24 00:52:04,948 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-10-24 00:52:04,949 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-10-24 00:52:04,949 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-10-24 00:52:04,949 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-10-24 00:52:04,949 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-10-24 00:52:04,950 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-10-24 00:52:04,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 00:52:04,951 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-10-24 00:52:04,951 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-10-24 00:52:04,951 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-10-24 00:52:04,952 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-10-24 00:52:04,953 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-10-24 00:52:04,953 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-10-24 00:52:04,953 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-10-24 00:52:04,953 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-10-24 00:52:04,953 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-10-24 00:52:04,953 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-10-24 00:52:04,953 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-10-24 00:52:04,953 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-10-24 00:52:04,953 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-10-24 00:52:04,953 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-10-24 00:52:04,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 00:52:04,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-24 00:52:04,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-24 00:52:04,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-24 00:52:04,954 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-10-24 00:52:04,955 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-10-24 00:52:04,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 00:52:04,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 00:52:05,124 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 00:52:05,126 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 00:52:05,847 INFO L? ?]: Removed 334 outVars from TransFormulas that were not future-live. [2024-10-24 00:52:05,847 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 00:52:05,910 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 00:52:05,910 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 00:52:05,911 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:52:05 BoogieIcfgContainer [2024-10-24 00:52:05,913 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 00:52:05,915 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 00:52:05,916 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 00:52:05,919 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 00:52:05,919 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 12:52:03" (1/3) ... [2024-10-24 00:52:05,920 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d5c706b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:52:05, skipping insertion in model container [2024-10-24 00:52:05,921 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:52:04" (2/3) ... [2024-10-24 00:52:05,921 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d5c706b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:52:05, skipping insertion in model container [2024-10-24 00:52:05,921 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:52:05" (3/3) ... [2024-10-24 00:52:05,922 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec6_product12.cil.c [2024-10-24 00:52:05,939 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 00:52:05,939 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 00:52:06,020 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 00:52:06,028 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;@5e118a1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 00:52:06,029 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 00:52:06,035 INFO L276 IsEmpty]: Start isEmpty. Operand has 252 states, 190 states have (on average 1.6) internal successors, (304), 194 states have internal predecessors, (304), 43 states have call successors, (43), 17 states have call predecessors, (43), 17 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2024-10-24 00:52:06,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-10-24 00:52:06,052 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:52:06,053 INFO L215 NwaCegarLoop]: trace histogram [3, 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] [2024-10-24 00:52:06,053 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:52:06,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:52:06,059 INFO L85 PathProgramCache]: Analyzing trace with hash -306622727, now seen corresponding path program 1 times [2024-10-24 00:52:06,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:52:06,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126630558] [2024-10-24 00:52:06,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:52:06,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:52:06,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:06,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:52:06,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:06,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:52:06,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:06,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:52:06,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:06,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 00:52:06,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:06,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 00:52:06,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:06,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 00:52:06,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:06,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 00:52:06,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:06,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 00:52:06,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:06,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-24 00:52:06,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:06,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-24 00:52:06,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:06,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 00:52:06,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:06,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 00:52:06,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:06,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 00:52:06,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:06,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 00:52:06,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:06,895 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-10-24 00:52:06,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:52:06,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126630558] [2024-10-24 00:52:06,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126630558] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:52:06,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1824767318] [2024-10-24 00:52:06,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:52:06,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:52:06,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:52:06,900 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) [2024-10-24 00:52:06,901 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 00:52:07,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:07,235 INFO L255 TraceCheckSpWp]: Trace formula consists of 966 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-24 00:52:07,244 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:52:07,263 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-10-24 00:52:07,264 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 00:52:07,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1824767318] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:52:07,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 00:52:07,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [8] total 8 [2024-10-24 00:52:07,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733270558] [2024-10-24 00:52:07,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:52:07,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 00:52:07,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:52:07,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 00:52:07,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-24 00:52:07,297 INFO L87 Difference]: Start difference. First operand has 252 states, 190 states have (on average 1.6) internal successors, (304), 194 states have internal predecessors, (304), 43 states have call successors, (43), 17 states have call predecessors, (43), 17 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) Second operand has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-24 00:52:07,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:52:07,391 INFO L93 Difference]: Finished difference Result 363 states and 550 transitions. [2024-10-24 00:52:07,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 00:52:07,394 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 104 [2024-10-24 00:52:07,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:52:07,412 INFO L225 Difference]: With dead ends: 363 [2024-10-24 00:52:07,412 INFO L226 Difference]: Without dead ends: 249 [2024-10-24 00:52:07,416 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-24 00:52:07,419 INFO L432 NwaCegarLoop]: 376 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 00:52:07,420 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 376 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 00:52:07,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2024-10-24 00:52:07,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 249. [2024-10-24 00:52:07,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 188 states have (on average 1.5797872340425532) internal successors, (297), 191 states have internal predecessors, (297), 43 states have call successors, (43), 17 states have call predecessors, (43), 17 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-24 00:52:07,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 382 transitions. [2024-10-24 00:52:07,495 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 382 transitions. Word has length 104 [2024-10-24 00:52:07,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:52:07,502 INFO L471 AbstractCegarLoop]: Abstraction has 249 states and 382 transitions. [2024-10-24 00:52:07,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-24 00:52:07,502 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 382 transitions. [2024-10-24 00:52:07,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-10-24 00:52:07,514 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:52:07,514 INFO L215 NwaCegarLoop]: trace histogram [3, 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] [2024-10-24 00:52:07,534 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-24 00:52:07,715 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 [2024-10-24 00:52:07,715 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:52:07,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:52:07,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1081114270, now seen corresponding path program 1 times [2024-10-24 00:52:07,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:52:07,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138895025] [2024-10-24 00:52:07,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:52:07,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:52:07,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:07,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:52:07,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:07,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:52:07,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:07,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:52:07,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:07,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 00:52:07,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:07,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 00:52:07,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:07,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 00:52:07,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:08,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 00:52:08,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:08,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 00:52:08,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:08,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-24 00:52:08,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:08,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-24 00:52:08,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:08,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 00:52:08,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:08,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 00:52:08,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:08,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 00:52:08,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:08,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-24 00:52:08,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:08,043 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-10-24 00:52:08,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:52:08,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138895025] [2024-10-24 00:52:08,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138895025] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:52:08,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [17849132] [2024-10-24 00:52:08,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:52:08,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:52:08,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:52:08,048 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) [2024-10-24 00:52:08,050 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-24 00:52:08,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:08,367 INFO L255 TraceCheckSpWp]: Trace formula consists of 967 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-24 00:52:08,374 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:52:08,400 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-10-24 00:52:08,400 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 00:52:08,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [17849132] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:52:08,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 00:52:08,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-10-24 00:52:08,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969975113] [2024-10-24 00:52:08,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:52:08,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 00:52:08,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:52:08,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 00:52:08,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 00:52:08,408 INFO L87 Difference]: Start difference. First operand 249 states and 382 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-24 00:52:08,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:52:08,463 INFO L93 Difference]: Finished difference Result 359 states and 537 transitions. [2024-10-24 00:52:08,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 00:52:08,465 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 105 [2024-10-24 00:52:08,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:52:08,468 INFO L225 Difference]: With dead ends: 359 [2024-10-24 00:52:08,468 INFO L226 Difference]: Without dead ends: 251 [2024-10-24 00:52:08,471 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 00:52:08,472 INFO L432 NwaCegarLoop]: 373 mSDtfsCounter, 0 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 745 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 00:52:08,473 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 745 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 00:52:08,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2024-10-24 00:52:08,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 251. [2024-10-24 00:52:08,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 190 states have (on average 1.5736842105263158) internal successors, (299), 193 states have internal predecessors, (299), 43 states have call successors, (43), 17 states have call predecessors, (43), 17 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-24 00:52:08,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 384 transitions. [2024-10-24 00:52:08,499 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 384 transitions. Word has length 105 [2024-10-24 00:52:08,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:52:08,500 INFO L471 AbstractCegarLoop]: Abstraction has 251 states and 384 transitions. [2024-10-24 00:52:08,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-24 00:52:08,500 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 384 transitions. [2024-10-24 00:52:08,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-10-24 00:52:08,505 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:52:08,505 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-10-24 00:52:08,522 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-24 00:52:08,706 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 [2024-10-24 00:52:08,706 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:52:08,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:52:08,707 INFO L85 PathProgramCache]: Analyzing trace with hash -188517010, now seen corresponding path program 1 times [2024-10-24 00:52:08,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:52:08,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868286764] [2024-10-24 00:52:08,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:52:08,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:52:08,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:08,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:52:08,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:08,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:52:08,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:08,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:52:08,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:08,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 00:52:08,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:08,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 00:52:08,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:08,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 00:52:08,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:08,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-24 00:52:08,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:08,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-24 00:52:08,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:08,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-24 00:52:08,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:08,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 00:52:08,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:08,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-24 00:52:08,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:08,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 00:52:08,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:08,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 00:52:08,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:08,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 00:52:08,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:08,950 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-24 00:52:08,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:52:08,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868286764] [2024-10-24 00:52:08,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868286764] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:52:08,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [353034761] [2024-10-24 00:52:08,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:52:08,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:52:08,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:52:08,955 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) [2024-10-24 00:52:08,956 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-24 00:52:09,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:09,230 INFO L255 TraceCheckSpWp]: Trace formula consists of 979 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 00:52:09,234 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:52:09,257 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-10-24 00:52:09,258 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 00:52:09,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [353034761] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:52:09,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 00:52:09,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-10-24 00:52:09,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374557069] [2024-10-24 00:52:09,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:52:09,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 00:52:09,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:52:09,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 00:52:09,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 00:52:09,262 INFO L87 Difference]: Start difference. First operand 251 states and 384 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, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-24 00:52:09,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:52:09,316 INFO L93 Difference]: Finished difference Result 528 states and 820 transitions. [2024-10-24 00:52:09,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 00:52:09,316 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, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 110 [2024-10-24 00:52:09,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:52:09,321 INFO L225 Difference]: With dead ends: 528 [2024-10-24 00:52:09,321 INFO L226 Difference]: Without dead ends: 299 [2024-10-24 00:52:09,323 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 00:52:09,325 INFO L432 NwaCegarLoop]: 383 mSDtfsCounter, 95 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 712 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 00:52:09,326 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 712 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 00:52:09,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2024-10-24 00:52:09,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 294. [2024-10-24 00:52:09,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 222 states have (on average 1.5855855855855856) internal successors, (352), 225 states have internal predecessors, (352), 54 states have call successors, (54), 17 states have call predecessors, (54), 17 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2024-10-24 00:52:09,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 459 transitions. [2024-10-24 00:52:09,356 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 459 transitions. Word has length 110 [2024-10-24 00:52:09,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:52:09,357 INFO L471 AbstractCegarLoop]: Abstraction has 294 states and 459 transitions. [2024-10-24 00:52:09,358 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, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-24 00:52:09,358 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 459 transitions. [2024-10-24 00:52:09,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-10-24 00:52:09,360 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:52:09,360 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-10-24 00:52:09,378 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-24 00:52:09,561 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 [2024-10-24 00:52:09,562 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:52:09,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:52:09,562 INFO L85 PathProgramCache]: Analyzing trace with hash -2121442329, now seen corresponding path program 1 times [2024-10-24 00:52:09,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:52:09,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118710343] [2024-10-24 00:52:09,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:52:09,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:52:09,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:09,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:52:09,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:09,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:52:09,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:09,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:52:09,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:09,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 00:52:09,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:09,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 00:52:09,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:09,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 00:52:09,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:09,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-24 00:52:09,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:09,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-24 00:52:09,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:09,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-24 00:52:09,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:09,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 00:52:09,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:09,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 00:52:09,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:09,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 00:52:09,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:09,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-24 00:52:09,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:09,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-24 00:52:09,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:09,792 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-24 00:52:09,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:52:09,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118710343] [2024-10-24 00:52:09,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118710343] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:52:09,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [184847825] [2024-10-24 00:52:09,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:52:09,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:52:09,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:52:09,795 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) [2024-10-24 00:52:09,796 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-24 00:52:10,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:10,055 INFO L255 TraceCheckSpWp]: Trace formula consists of 984 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-24 00:52:10,060 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:52:10,146 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-24 00:52:10,146 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 00:52:10,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [184847825] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:52:10,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 00:52:10,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2024-10-24 00:52:10,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654464692] [2024-10-24 00:52:10,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:52:10,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 00:52:10,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:52:10,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 00:52:10,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-10-24 00:52:10,151 INFO L87 Difference]: Start difference. First operand 294 states and 459 transitions. Second operand has 5 states, 4 states have (on average 17.75) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-24 00:52:10,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:52:10,244 INFO L93 Difference]: Finished difference Result 583 states and 912 transitions. [2024-10-24 00:52:10,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 00:52:10,245 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.75) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 111 [2024-10-24 00:52:10,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:52:10,247 INFO L225 Difference]: With dead ends: 583 [2024-10-24 00:52:10,247 INFO L226 Difference]: Without dead ends: 296 [2024-10-24 00:52:10,251 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-10-24 00:52:10,252 INFO L432 NwaCegarLoop]: 365 mSDtfsCounter, 2 mSDsluCounter, 1084 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1449 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 00:52:10,254 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1449 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 00:52:10,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2024-10-24 00:52:10,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 296. [2024-10-24 00:52:10,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 223 states have (on average 1.5829596412556053) internal successors, (353), 227 states have internal predecessors, (353), 54 states have call successors, (54), 17 states have call predecessors, (54), 18 states have return successors, (55), 53 states have call predecessors, (55), 53 states have call successors, (55) [2024-10-24 00:52:10,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 462 transitions. [2024-10-24 00:52:10,270 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 462 transitions. Word has length 111 [2024-10-24 00:52:10,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:52:10,270 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 462 transitions. [2024-10-24 00:52:10,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.75) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-24 00:52:10,270 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 462 transitions. [2024-10-24 00:52:10,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-10-24 00:52:10,272 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:52:10,273 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:52:10,291 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-24 00:52:10,473 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 [2024-10-24 00:52:10,473 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:52:10,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:52:10,474 INFO L85 PathProgramCache]: Analyzing trace with hash -739674531, now seen corresponding path program 1 times [2024-10-24 00:52:10,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:52:10,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979671373] [2024-10-24 00:52:10,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:52:10,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:52:10,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:10,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:52:10,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:10,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:52:10,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:10,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:52:10,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:10,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:52:10,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:10,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-24 00:52:10,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:10,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-24 00:52:10,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:10,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 00:52:10,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:10,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-24 00:52:10,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:10,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 00:52:10,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:10,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 00:52:10,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:10,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 00:52:10,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:10,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 00:52:10,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:10,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 00:52:10,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:10,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 00:52:10,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:10,714 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-24 00:52:10,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:52:10,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979671373] [2024-10-24 00:52:10,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979671373] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:52:10,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1096491374] [2024-10-24 00:52:10,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:52:10,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:52:10,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:52:10,717 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) [2024-10-24 00:52:10,719 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-24 00:52:10,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:10,974 INFO L255 TraceCheckSpWp]: Trace formula consists of 985 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-24 00:52:10,978 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:52:11,070 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-24 00:52:11,071 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 00:52:11,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1096491374] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:52:11,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 00:52:11,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 14 [2024-10-24 00:52:11,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22590018] [2024-10-24 00:52:11,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:52:11,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 00:52:11,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:52:11,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 00:52:11,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-10-24 00:52:11,076 INFO L87 Difference]: Start difference. First operand 296 states and 462 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-24 00:52:11,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:52:11,164 INFO L93 Difference]: Finished difference Result 585 states and 917 transitions. [2024-10-24 00:52:11,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 00:52:11,167 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 112 [2024-10-24 00:52:11,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:52:11,169 INFO L225 Difference]: With dead ends: 585 [2024-10-24 00:52:11,169 INFO L226 Difference]: Without dead ends: 298 [2024-10-24 00:52:11,171 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-10-24 00:52:11,172 INFO L432 NwaCegarLoop]: 363 mSDtfsCounter, 2 mSDsluCounter, 1072 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1435 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 00:52:11,174 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1435 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 00:52:11,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2024-10-24 00:52:11,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2024-10-24 00:52:11,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 224 states have (on average 1.5803571428571428) internal successors, (354), 229 states have internal predecessors, (354), 54 states have call successors, (54), 17 states have call predecessors, (54), 19 states have return successors, (60), 53 states have call predecessors, (60), 53 states have call successors, (60) [2024-10-24 00:52:11,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 468 transitions. [2024-10-24 00:52:11,199 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 468 transitions. Word has length 112 [2024-10-24 00:52:11,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:52:11,200 INFO L471 AbstractCegarLoop]: Abstraction has 298 states and 468 transitions. [2024-10-24 00:52:11,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-24 00:52:11,200 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 468 transitions. [2024-10-24 00:52:11,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-10-24 00:52:11,202 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:52:11,202 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:52:11,221 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-24 00:52:11,403 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 [2024-10-24 00:52:11,404 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:52:11,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:52:11,404 INFO L85 PathProgramCache]: Analyzing trace with hash 842230276, now seen corresponding path program 1 times [2024-10-24 00:52:11,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:52:11,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24560998] [2024-10-24 00:52:11,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:52:11,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:52:11,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:11,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:52:11,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:11,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:52:11,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:11,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:52:11,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:11,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:52:11,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:11,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:52:11,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:11,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 00:52:11,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:11,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 00:52:11,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:11,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-24 00:52:11,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:11,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 00:52:11,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:11,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 00:52:11,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:11,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 00:52:11,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:11,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 00:52:11,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:11,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-24 00:52:11,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:11,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-24 00:52:11,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:11,600 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-24 00:52:11,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:52:11,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24560998] [2024-10-24 00:52:11,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24560998] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:52:11,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:52:11,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 00:52:11,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198148522] [2024-10-24 00:52:11,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:52:11,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 00:52:11,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:52:11,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 00:52:11,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-24 00:52:11,603 INFO L87 Difference]: Start difference. First operand 298 states and 468 transitions. Second operand has 8 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-24 00:52:12,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:52:12,898 INFO L93 Difference]: Finished difference Result 623 states and 984 transitions. [2024-10-24 00:52:12,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:52:12,899 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 113 [2024-10-24 00:52:12,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:52:12,902 INFO L225 Difference]: With dead ends: 623 [2024-10-24 00:52:12,904 INFO L226 Difference]: Without dead ends: 344 [2024-10-24 00:52:12,905 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2024-10-24 00:52:12,906 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 566 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 1465 mSolverCounterSat, 187 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 567 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 1652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 187 IncrementalHoareTripleChecker+Valid, 1465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-24 00:52:12,909 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [567 Valid, 817 Invalid, 1652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [187 Valid, 1465 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-24 00:52:12,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2024-10-24 00:52:12,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 298. [2024-10-24 00:52:12,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 224 states have (on average 1.5803571428571428) internal successors, (354), 229 states have internal predecessors, (354), 54 states have call successors, (54), 17 states have call predecessors, (54), 19 states have return successors, (59), 53 states have call predecessors, (59), 53 states have call successors, (59) [2024-10-24 00:52:12,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 467 transitions. [2024-10-24 00:52:12,936 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 467 transitions. Word has length 113 [2024-10-24 00:52:12,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:52:12,936 INFO L471 AbstractCegarLoop]: Abstraction has 298 states and 467 transitions. [2024-10-24 00:52:12,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-24 00:52:12,937 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 467 transitions. [2024-10-24 00:52:12,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-10-24 00:52:12,939 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:52:12,939 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:52:12,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 00:52:12,940 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:52:12,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:52:12,940 INFO L85 PathProgramCache]: Analyzing trace with hash -832509480, now seen corresponding path program 2 times [2024-10-24 00:52:12,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:52:12,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122128974] [2024-10-24 00:52:12,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:52:12,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:52:12,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:13,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:52:13,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:13,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:52:13,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:13,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:52:13,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:13,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:52:13,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:13,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:52:13,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:13,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 00:52:13,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:13,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 00:52:13,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:13,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 00:52:13,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:13,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-24 00:52:13,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:13,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-24 00:52:13,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:13,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-24 00:52:13,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:13,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-24 00:52:13,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:13,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 00:52:13,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:13,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 00:52:13,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:13,124 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-24 00:52:13,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:52:13,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122128974] [2024-10-24 00:52:13,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122128974] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:52:13,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:52:13,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 00:52:13,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410377766] [2024-10-24 00:52:13,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:52:13,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 00:52:13,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:52:13,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 00:52:13,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-24 00:52:13,127 INFO L87 Difference]: Start difference. First operand 298 states and 467 transitions. Second operand has 8 states, 7 states have (on average 10.0) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-24 00:52:14,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:52:14,330 INFO L93 Difference]: Finished difference Result 625 states and 987 transitions. [2024-10-24 00:52:14,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:52:14,330 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.0) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 114 [2024-10-24 00:52:14,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:52:14,336 INFO L225 Difference]: With dead ends: 625 [2024-10-24 00:52:14,336 INFO L226 Difference]: Without dead ends: 346 [2024-10-24 00:52:14,338 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2024-10-24 00:52:14,339 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 563 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 1476 mSolverCounterSat, 187 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 564 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 1663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 187 IncrementalHoareTripleChecker+Valid, 1476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 00:52:14,339 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [564 Valid, 817 Invalid, 1663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [187 Valid, 1476 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 00:52:14,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2024-10-24 00:52:14,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 300. [2024-10-24 00:52:14,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 225 states have (on average 1.5777777777777777) internal successors, (355), 231 states have internal predecessors, (355), 54 states have call successors, (54), 17 states have call predecessors, (54), 20 states have return successors, (61), 53 states have call predecessors, (61), 53 states have call successors, (61) [2024-10-24 00:52:14,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 470 transitions. [2024-10-24 00:52:14,366 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 470 transitions. Word has length 114 [2024-10-24 00:52:14,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:52:14,367 INFO L471 AbstractCegarLoop]: Abstraction has 300 states and 470 transitions. [2024-10-24 00:52:14,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.0) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-24 00:52:14,368 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 470 transitions. [2024-10-24 00:52:14,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-10-24 00:52:14,369 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:52:14,369 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:52:14,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 00:52:14,370 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:52:14,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:52:14,370 INFO L85 PathProgramCache]: Analyzing trace with hash -45177527, now seen corresponding path program 1 times [2024-10-24 00:52:14,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:52:14,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614833556] [2024-10-24 00:52:14,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:52:14,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:52:14,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:14,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:52:14,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:14,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:52:14,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:14,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:52:14,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:14,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:52:14,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:14,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:52:14,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:14,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:52:14,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:14,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 00:52:14,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:14,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-24 00:52:14,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:14,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 00:52:14,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:14,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-24 00:52:14,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:14,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 00:52:14,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:14,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 00:52:14,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:14,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 00:52:14,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:14,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 00:52:14,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:14,603 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-24 00:52:14,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:52:14,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614833556] [2024-10-24 00:52:14,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614833556] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:52:14,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:52:14,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-24 00:52:14,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044451030] [2024-10-24 00:52:14,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:52:14,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-24 00:52:14,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:52:14,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-24 00:52:14,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-10-24 00:52:14,607 INFO L87 Difference]: Start difference. First operand 300 states and 470 transitions. Second operand has 11 states, 10 states have (on average 7.4) internal successors, (74), 8 states have internal predecessors, (74), 4 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-10-24 00:52:16,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:52:16,187 INFO L93 Difference]: Finished difference Result 623 states and 982 transitions. [2024-10-24 00:52:16,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 00:52:16,188 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 7.4) internal successors, (74), 8 states have internal predecessors, (74), 4 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 115 [2024-10-24 00:52:16,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:52:16,190 INFO L225 Difference]: With dead ends: 623 [2024-10-24 00:52:16,190 INFO L226 Difference]: Without dead ends: 346 [2024-10-24 00:52:16,191 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=305, Unknown=0, NotChecked=0, Total=380 [2024-10-24 00:52:16,192 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 566 mSDsluCounter, 1023 mSDsCounter, 0 mSdLazyCounter, 2487 mSolverCounterSat, 192 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 567 SdHoareTripleChecker+Valid, 1174 SdHoareTripleChecker+Invalid, 2679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 192 IncrementalHoareTripleChecker+Valid, 2487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-24 00:52:16,192 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [567 Valid, 1174 Invalid, 2679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [192 Valid, 2487 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-24 00:52:16,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2024-10-24 00:52:16,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 300. [2024-10-24 00:52:16,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 225 states have (on average 1.5777777777777777) internal successors, (355), 231 states have internal predecessors, (355), 54 states have call successors, (54), 17 states have call predecessors, (54), 20 states have return successors, (60), 53 states have call predecessors, (60), 53 states have call successors, (60) [2024-10-24 00:52:16,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 469 transitions. [2024-10-24 00:52:16,215 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 469 transitions. Word has length 115 [2024-10-24 00:52:16,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:52:16,216 INFO L471 AbstractCegarLoop]: Abstraction has 300 states and 469 transitions. [2024-10-24 00:52:16,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 7.4) internal successors, (74), 8 states have internal predecessors, (74), 4 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-10-24 00:52:16,216 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 469 transitions. [2024-10-24 00:52:16,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-10-24 00:52:16,218 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:52:16,218 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:52:16,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 00:52:16,218 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:52:16,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:52:16,219 INFO L85 PathProgramCache]: Analyzing trace with hash -695977524, now seen corresponding path program 2 times [2024-10-24 00:52:16,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:52:16,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056363316] [2024-10-24 00:52:16,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:52:16,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:52:16,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:16,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:52:16,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:16,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:52:16,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:16,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:52:16,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:16,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:52:16,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:16,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:52:16,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:16,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:52:16,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:16,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-24 00:52:16,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:16,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-24 00:52:16,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:16,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 00:52:16,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:16,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-24 00:52:16,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:16,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 00:52:16,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:16,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 00:52:16,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:16,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 00:52:16,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:16,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 00:52:16,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:16,468 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-24 00:52:16,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:52:16,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056363316] [2024-10-24 00:52:16,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056363316] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:52:16,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:52:16,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-24 00:52:16,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454844023] [2024-10-24 00:52:16,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:52:16,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-24 00:52:16,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:52:16,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-24 00:52:16,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-10-24 00:52:16,471 INFO L87 Difference]: Start difference. First operand 300 states and 469 transitions. Second operand has 11 states, 10 states have (on average 7.5) internal successors, (75), 8 states have internal predecessors, (75), 4 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-10-24 00:52:18,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:52:18,183 INFO L93 Difference]: Finished difference Result 625 states and 988 transitions. [2024-10-24 00:52:18,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 00:52:18,183 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 7.5) internal successors, (75), 8 states have internal predecessors, (75), 4 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 116 [2024-10-24 00:52:18,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:52:18,186 INFO L225 Difference]: With dead ends: 625 [2024-10-24 00:52:18,186 INFO L226 Difference]: Without dead ends: 348 [2024-10-24 00:52:18,188 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=305, Unknown=0, NotChecked=0, Total=380 [2024-10-24 00:52:18,190 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 563 mSDsluCounter, 1023 mSDsCounter, 0 mSdLazyCounter, 2521 mSolverCounterSat, 190 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 564 SdHoareTripleChecker+Valid, 1175 SdHoareTripleChecker+Invalid, 2711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 190 IncrementalHoareTripleChecker+Valid, 2521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-24 00:52:18,191 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [564 Valid, 1175 Invalid, 2711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [190 Valid, 2521 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-24 00:52:18,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2024-10-24 00:52:18,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 302. [2024-10-24 00:52:18,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 226 states have (on average 1.575221238938053) internal successors, (356), 233 states have internal predecessors, (356), 54 states have call successors, (54), 17 states have call predecessors, (54), 21 states have return successors, (65), 53 states have call predecessors, (65), 53 states have call successors, (65) [2024-10-24 00:52:18,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 475 transitions. [2024-10-24 00:52:18,219 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 475 transitions. Word has length 116 [2024-10-24 00:52:18,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:52:18,220 INFO L471 AbstractCegarLoop]: Abstraction has 302 states and 475 transitions. [2024-10-24 00:52:18,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 7.5) internal successors, (75), 8 states have internal predecessors, (75), 4 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-10-24 00:52:18,220 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 475 transitions. [2024-10-24 00:52:18,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-10-24 00:52:18,222 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:52:18,222 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:52:18,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 00:52:18,223 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:52:18,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:52:18,224 INFO L85 PathProgramCache]: Analyzing trace with hash 671723054, now seen corresponding path program 1 times [2024-10-24 00:52:18,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:52:18,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041384303] [2024-10-24 00:52:18,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:52:18,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:52:18,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:18,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:52:18,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:18,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:52:18,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:18,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:52:18,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:18,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:52:18,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:18,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:52:18,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:18,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:52:18,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:18,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-24 00:52:18,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:18,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-24 00:52:18,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:18,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 00:52:18,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:18,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 00:52:18,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:18,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 00:52:18,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:18,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-24 00:52:18,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:18,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-24 00:52:18,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:18,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-24 00:52:18,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:18,375 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-24 00:52:18,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:52:18,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041384303] [2024-10-24 00:52:18,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041384303] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:52:18,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1145428938] [2024-10-24 00:52:18,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:52:18,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:52:18,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:52:18,378 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) [2024-10-24 00:52:18,379 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-24 00:52:18,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:18,661 INFO L255 TraceCheckSpWp]: Trace formula consists of 990 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 00:52:18,665 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:52:18,692 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-24 00:52:18,692 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 00:52:18,810 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-24 00:52:18,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1145428938] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 00:52:18,810 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 00:52:18,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 10 [2024-10-24 00:52:18,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677062478] [2024-10-24 00:52:18,811 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 00:52:18,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 00:52:18,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:52:18,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 00:52:18,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-10-24 00:52:18,812 INFO L87 Difference]: Start difference. First operand 302 states and 475 transitions. Second operand has 10 states, 10 states have (on average 10.4) internal successors, (104), 7 states have internal predecessors, (104), 2 states have call successors, (32), 5 states have call predecessors, (32), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-10-24 00:52:20,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:52:20,007 INFO L93 Difference]: Finished difference Result 766 states and 1273 transitions. [2024-10-24 00:52:20,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 00:52:20,008 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.4) internal successors, (104), 7 states have internal predecessors, (104), 2 states have call successors, (32), 5 states have call predecessors, (32), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 117 [2024-10-24 00:52:20,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:52:20,012 INFO L225 Difference]: With dead ends: 766 [2024-10-24 00:52:20,013 INFO L226 Difference]: Without dead ends: 658 [2024-10-24 00:52:20,014 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2024-10-24 00:52:20,014 INFO L432 NwaCegarLoop]: 202 mSDtfsCounter, 890 mSDsluCounter, 929 mSDsCounter, 0 mSdLazyCounter, 1323 mSolverCounterSat, 298 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 935 SdHoareTripleChecker+Valid, 1131 SdHoareTripleChecker+Invalid, 1621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 298 IncrementalHoareTripleChecker+Valid, 1323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-24 00:52:20,015 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [935 Valid, 1131 Invalid, 1621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [298 Valid, 1323 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-24 00:52:20,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2024-10-24 00:52:20,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 597. [2024-10-24 00:52:20,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 597 states, 457 states have (on average 1.6323851203501094) internal successors, (746), 464 states have internal predecessors, (746), 118 states have call successors, (118), 17 states have call predecessors, (118), 21 states have return successors, (139), 117 states have call predecessors, (139), 117 states have call successors, (139) [2024-10-24 00:52:20,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 1003 transitions. [2024-10-24 00:52:20,050 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 1003 transitions. Word has length 117 [2024-10-24 00:52:20,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:52:20,050 INFO L471 AbstractCegarLoop]: Abstraction has 597 states and 1003 transitions. [2024-10-24 00:52:20,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.4) internal successors, (104), 7 states have internal predecessors, (104), 2 states have call successors, (32), 5 states have call predecessors, (32), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-10-24 00:52:20,051 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 1003 transitions. [2024-10-24 00:52:20,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-10-24 00:52:20,054 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:52:20,054 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, 1] [2024-10-24 00:52:20,074 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-24 00:52:20,255 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 [2024-10-24 00:52:20,256 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:52:20,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:52:20,256 INFO L85 PathProgramCache]: Analyzing trace with hash 602327563, now seen corresponding path program 1 times [2024-10-24 00:52:20,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:52:20,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641028894] [2024-10-24 00:52:20,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:52:20,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:52:20,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:20,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:52:20,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:20,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:52:20,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:20,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:52:20,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:20,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:52:20,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:20,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:52:20,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:20,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:52:20,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:20,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-24 00:52:20,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:20,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-24 00:52:20,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:20,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 00:52:20,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:20,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 00:52:20,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:20,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 00:52:20,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:20,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-24 00:52:20,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:20,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-24 00:52:20,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:20,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-24 00:52:20,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:20,381 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-24 00:52:20,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:52:20,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641028894] [2024-10-24 00:52:20,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641028894] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:52:20,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:52:20,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 00:52:20,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522440353] [2024-10-24 00:52:20,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:52:20,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 00:52:20,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:52:20,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 00:52:20,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 00:52:20,383 INFO L87 Difference]: Start difference. First operand 597 states and 1003 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-24 00:52:21,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:52:21,253 INFO L93 Difference]: Finished difference Result 1477 states and 2542 transitions. [2024-10-24 00:52:21,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 00:52:21,254 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 123 [2024-10-24 00:52:21,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:52:21,261 INFO L225 Difference]: With dead ends: 1477 [2024-10-24 00:52:21,261 INFO L226 Difference]: Without dead ends: 940 [2024-10-24 00:52:21,263 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-24 00:52:21,264 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 655 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 812 mSolverCounterSat, 232 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 670 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 1044 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 232 IncrementalHoareTripleChecker+Valid, 812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 00:52:21,264 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [670 Valid, 584 Invalid, 1044 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [232 Valid, 812 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 00:52:21,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 940 states. [2024-10-24 00:52:21,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 940 to 889. [2024-10-24 00:52:21,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 889 states, 685 states have (on average 1.6394160583941606) internal successors, (1123), 692 states have internal predecessors, (1123), 182 states have call successors, (182), 17 states have call predecessors, (182), 21 states have return successors, (213), 181 states have call predecessors, (213), 181 states have call successors, (213) [2024-10-24 00:52:21,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 889 states to 889 states and 1518 transitions. [2024-10-24 00:52:21,313 INFO L78 Accepts]: Start accepts. Automaton has 889 states and 1518 transitions. Word has length 123 [2024-10-24 00:52:21,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:52:21,313 INFO L471 AbstractCegarLoop]: Abstraction has 889 states and 1518 transitions. [2024-10-24 00:52:21,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-24 00:52:21,314 INFO L276 IsEmpty]: Start isEmpty. Operand 889 states and 1518 transitions. [2024-10-24 00:52:21,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-10-24 00:52:21,319 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:52:21,319 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, 1, 1] [2024-10-24 00:52:21,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 00:52:21,320 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:52:21,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:52:21,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1204130439, now seen corresponding path program 1 times [2024-10-24 00:52:21,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:52:21,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443556844] [2024-10-24 00:52:21,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:52:21,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:52:21,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:21,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:52:21,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:21,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:52:21,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:21,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:52:21,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:21,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:52:21,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:21,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:52:21,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:21,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:52:21,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:21,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 00:52:21,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:21,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-24 00:52:21,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:21,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 00:52:21,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:21,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 00:52:21,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:21,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-24 00:52:21,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:21,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 00:52:21,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:21,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 00:52:21,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:21,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 00:52:21,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:21,425 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-24 00:52:21,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:52:21,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443556844] [2024-10-24 00:52:21,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443556844] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:52:21,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:52:21,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 00:52:21,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736481281] [2024-10-24 00:52:21,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:52:21,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 00:52:21,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:52:21,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 00:52:21,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 00:52:21,427 INFO L87 Difference]: Start difference. First operand 889 states and 1518 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-24 00:52:22,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:52:22,331 INFO L93 Difference]: Finished difference Result 2174 states and 3769 transitions. [2024-10-24 00:52:22,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 00:52:22,332 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 124 [2024-10-24 00:52:22,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:52:22,340 INFO L225 Difference]: With dead ends: 2174 [2024-10-24 00:52:22,341 INFO L226 Difference]: Without dead ends: 1395 [2024-10-24 00:52:22,345 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-24 00:52:22,345 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 653 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 821 mSolverCounterSat, 229 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 668 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 1050 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 229 IncrementalHoareTripleChecker+Valid, 821 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 00:52:22,345 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [668 Valid, 576 Invalid, 1050 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [229 Valid, 821 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 00:52:22,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1395 states. [2024-10-24 00:52:22,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1395 to 1344. [2024-10-24 00:52:22,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1344 states, 1045 states have (on average 1.6430622009569378) internal successors, (1717), 1052 states have internal predecessors, (1717), 277 states have call successors, (277), 17 states have call predecessors, (277), 21 states have return successors, (308), 276 states have call predecessors, (308), 276 states have call successors, (308) [2024-10-24 00:52:22,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1344 states to 1344 states and 2302 transitions. [2024-10-24 00:52:22,406 INFO L78 Accepts]: Start accepts. Automaton has 1344 states and 2302 transitions. Word has length 124 [2024-10-24 00:52:22,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:52:22,406 INFO L471 AbstractCegarLoop]: Abstraction has 1344 states and 2302 transitions. [2024-10-24 00:52:22,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-24 00:52:22,407 INFO L276 IsEmpty]: Start isEmpty. Operand 1344 states and 2302 transitions. [2024-10-24 00:52:22,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-10-24 00:52:22,414 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:52:22,414 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, 1, 1, 1] [2024-10-24 00:52:22,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 00:52:22,415 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:52:22,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:52:22,415 INFO L85 PathProgramCache]: Analyzing trace with hash -890665875, now seen corresponding path program 1 times [2024-10-24 00:52:22,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:52:22,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513599111] [2024-10-24 00:52:22,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:52:22,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:52:22,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:22,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:52:22,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:22,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:52:22,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:22,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:52:22,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:22,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:52:22,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:22,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:52:22,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:22,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:52:22,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:22,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-24 00:52:22,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:22,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 00:52:22,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:22,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 00:52:22,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:22,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 00:52:22,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:22,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 00:52:22,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:22,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-24 00:52:22,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:22,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 00:52:22,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:22,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 00:52:22,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:22,517 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-24 00:52:22,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:52:22,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513599111] [2024-10-24 00:52:22,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513599111] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:52:22,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:52:22,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 00:52:22,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148959450] [2024-10-24 00:52:22,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:52:22,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 00:52:22,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:52:22,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 00:52:22,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 00:52:22,520 INFO L87 Difference]: Start difference. First operand 1344 states and 2302 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-24 00:52:23,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:52:23,494 INFO L93 Difference]: Finished difference Result 3192 states and 5581 transitions. [2024-10-24 00:52:23,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 00:52:23,495 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 125 [2024-10-24 00:52:23,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:52:23,508 INFO L225 Difference]: With dead ends: 3192 [2024-10-24 00:52:23,508 INFO L226 Difference]: Without dead ends: 2078 [2024-10-24 00:52:23,515 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-24 00:52:23,516 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 651 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 803 mSolverCounterSat, 226 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 666 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 1029 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 226 IncrementalHoareTripleChecker+Valid, 803 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 00:52:23,516 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [666 Valid, 571 Invalid, 1029 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [226 Valid, 803 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 00:52:23,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2078 states. [2024-10-24 00:52:23,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2078 to 2027. [2024-10-24 00:52:23,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2027 states, 1605 states have (on average 1.6467289719626168) internal successors, (2643), 1612 states have internal predecessors, (2643), 400 states have call successors, (400), 17 states have call predecessors, (400), 21 states have return successors, (447), 399 states have call predecessors, (447), 399 states have call successors, (447) [2024-10-24 00:52:23,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2027 states to 2027 states and 3490 transitions. [2024-10-24 00:52:23,605 INFO L78 Accepts]: Start accepts. Automaton has 2027 states and 3490 transitions. Word has length 125 [2024-10-24 00:52:23,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:52:23,606 INFO L471 AbstractCegarLoop]: Abstraction has 2027 states and 3490 transitions. [2024-10-24 00:52:23,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-24 00:52:23,606 INFO L276 IsEmpty]: Start isEmpty. Operand 2027 states and 3490 transitions. [2024-10-24 00:52:23,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-10-24 00:52:23,616 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:52:23,616 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, 1, 1, 1, 1] [2024-10-24 00:52:23,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 00:52:23,617 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:52:23,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:52:23,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1219674216, now seen corresponding path program 1 times [2024-10-24 00:52:23,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:52:23,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385834270] [2024-10-24 00:52:23,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:52:23,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:52:23,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:23,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:52:23,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:23,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:52:23,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:23,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:52:23,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:23,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:52:23,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:23,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:52:23,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:23,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:52:23,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:23,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-24 00:52:23,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:23,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 00:52:23,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:23,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-24 00:52:23,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:23,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 00:52:23,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:23,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-24 00:52:23,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:23,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 00:52:23,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:23,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 00:52:23,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:23,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 00:52:23,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:23,717 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-24 00:52:23,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:52:23,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385834270] [2024-10-24 00:52:23,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385834270] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:52:23,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:52:23,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 00:52:23,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399871089] [2024-10-24 00:52:23,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:52:23,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 00:52:23,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:52:23,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 00:52:23,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 00:52:23,718 INFO L87 Difference]: Start difference. First operand 2027 states and 3490 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-24 00:52:24,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:52:24,505 INFO L93 Difference]: Finished difference Result 4762 states and 8386 transitions. [2024-10-24 00:52:24,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 00:52:24,506 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 126 [2024-10-24 00:52:24,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:52:24,526 INFO L225 Difference]: With dead ends: 4762 [2024-10-24 00:52:24,526 INFO L226 Difference]: Without dead ends: 3162 [2024-10-24 00:52:24,534 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-24 00:52:24,534 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 649 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 802 mSolverCounterSat, 226 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 664 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 1028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 226 IncrementalHoareTripleChecker+Valid, 802 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 00:52:24,535 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [664 Valid, 570 Invalid, 1028 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [226 Valid, 802 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 00:52:24,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3162 states. [2024-10-24 00:52:24,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3162 to 3111. [2024-10-24 00:52:24,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3111 states, 2510 states have (on average 1.649003984063745) internal successors, (4139), 2517 states have internal predecessors, (4139), 579 states have call successors, (579), 17 states have call predecessors, (579), 21 states have return successors, (652), 578 states have call predecessors, (652), 578 states have call successors, (652) [2024-10-24 00:52:24,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3111 states to 3111 states and 5370 transitions. [2024-10-24 00:52:24,703 INFO L78 Accepts]: Start accepts. Automaton has 3111 states and 5370 transitions. Word has length 126 [2024-10-24 00:52:24,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:52:24,703 INFO L471 AbstractCegarLoop]: Abstraction has 3111 states and 5370 transitions. [2024-10-24 00:52:24,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-24 00:52:24,704 INFO L276 IsEmpty]: Start isEmpty. Operand 3111 states and 5370 transitions. [2024-10-24 00:52:24,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-10-24 00:52:24,717 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:52:24,718 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, 1, 1, 1, 1, 1] [2024-10-24 00:52:24,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 00:52:24,718 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:52:24,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:52:24,718 INFO L85 PathProgramCache]: Analyzing trace with hash -525216279, now seen corresponding path program 1 times [2024-10-24 00:52:24,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:52:24,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9595584] [2024-10-24 00:52:24,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:52:24,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:52:24,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:24,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:52:24,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:24,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:52:24,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:24,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:52:24,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:24,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:52:24,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:24,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:52:24,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:24,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:52:24,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:24,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-24 00:52:24,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:24,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-24 00:52:24,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:24,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 00:52:24,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:24,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-24 00:52:24,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:24,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 00:52:24,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:24,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 00:52:24,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:24,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 00:52:24,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:24,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-24 00:52:24,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:24,814 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-24 00:52:24,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:52:24,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9595584] [2024-10-24 00:52:24,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9595584] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:52:24,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:52:24,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 00:52:24,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13325126] [2024-10-24 00:52:24,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:52:24,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 00:52:24,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:52:24,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 00:52:24,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 00:52:24,816 INFO L87 Difference]: Start difference. First operand 3111 states and 5370 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-24 00:52:25,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:52:25,619 INFO L93 Difference]: Finished difference Result 7593 states and 13398 transitions. [2024-10-24 00:52:25,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 00:52:25,620 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 127 [2024-10-24 00:52:25,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:52:25,650 INFO L225 Difference]: With dead ends: 7593 [2024-10-24 00:52:25,651 INFO L226 Difference]: Without dead ends: 5132 [2024-10-24 00:52:25,662 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-24 00:52:25,662 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 647 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 823 mSolverCounterSat, 229 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 662 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 1052 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 229 IncrementalHoareTripleChecker+Valid, 823 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 00:52:25,663 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [662 Valid, 601 Invalid, 1052 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [229 Valid, 823 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 00:52:25,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5132 states. [2024-10-24 00:52:25,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5132 to 5081. [2024-10-24 00:52:25,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5081 states, 4104 states have (on average 1.6398635477582846) internal successors, (6730), 4111 states have internal predecessors, (6730), 955 states have call successors, (955), 17 states have call predecessors, (955), 21 states have return successors, (1072), 954 states have call predecessors, (1072), 954 states have call successors, (1072) [2024-10-24 00:52:25,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5081 states to 5081 states and 8757 transitions. [2024-10-24 00:52:25,892 INFO L78 Accepts]: Start accepts. Automaton has 5081 states and 8757 transitions. Word has length 127 [2024-10-24 00:52:25,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:52:25,893 INFO L471 AbstractCegarLoop]: Abstraction has 5081 states and 8757 transitions. [2024-10-24 00:52:25,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-24 00:52:25,893 INFO L276 IsEmpty]: Start isEmpty. Operand 5081 states and 8757 transitions. [2024-10-24 00:52:25,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-10-24 00:52:25,911 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:52:25,911 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, 1, 1, 1, 1, 1, 1] [2024-10-24 00:52:25,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 00:52:25,912 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:52:25,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:52:25,912 INFO L85 PathProgramCache]: Analyzing trace with hash 298052332, now seen corresponding path program 1 times [2024-10-24 00:52:25,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:52:25,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566552337] [2024-10-24 00:52:25,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:52:25,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:52:25,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:25,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:52:25,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:25,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:52:25,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:25,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:52:25,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:25,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:52:25,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:25,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:52:25,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:26,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:52:26,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:26,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-24 00:52:26,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:26,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 00:52:26,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:26,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 00:52:26,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:26,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 00:52:26,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:26,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 00:52:26,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:26,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 00:52:26,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:26,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-24 00:52:26,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:26,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-24 00:52:26,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:26,062 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-24 00:52:26,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:52:26,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566552337] [2024-10-24 00:52:26,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566552337] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:52:26,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:52:26,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 00:52:26,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821873430] [2024-10-24 00:52:26,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:52:26,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 00:52:26,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:52:26,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 00:52:26,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 00:52:26,065 INFO L87 Difference]: Start difference. First operand 5081 states and 8757 transitions. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-24 00:52:27,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:52:27,082 INFO L93 Difference]: Finished difference Result 12574 states and 22146 transitions. [2024-10-24 00:52:27,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 00:52:27,082 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 128 [2024-10-24 00:52:27,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:52:27,131 INFO L225 Difference]: With dead ends: 12574 [2024-10-24 00:52:27,131 INFO L226 Difference]: Without dead ends: 8509 [2024-10-24 00:52:27,150 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-24 00:52:27,150 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 645 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 808 mSolverCounterSat, 232 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 660 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 1040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 232 IncrementalHoareTripleChecker+Valid, 808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 00:52:27,151 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [660 Valid, 576 Invalid, 1040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [232 Valid, 808 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 00:52:27,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8509 states. [2024-10-24 00:52:27,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8509 to 8458. [2024-10-24 00:52:27,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8458 states, 6875 states have (on average 1.6368) internal successors, (11253), 6882 states have internal predecessors, (11253), 1561 states have call successors, (1561), 17 states have call predecessors, (1561), 21 states have return successors, (1756), 1560 states have call predecessors, (1756), 1560 states have call successors, (1756) [2024-10-24 00:52:27,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8458 states to 8458 states and 14570 transitions. [2024-10-24 00:52:27,618 INFO L78 Accepts]: Start accepts. Automaton has 8458 states and 14570 transitions. Word has length 128 [2024-10-24 00:52:27,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:52:27,619 INFO L471 AbstractCegarLoop]: Abstraction has 8458 states and 14570 transitions. [2024-10-24 00:52:27,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-24 00:52:27,620 INFO L276 IsEmpty]: Start isEmpty. Operand 8458 states and 14570 transitions. [2024-10-24 00:52:27,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-10-24 00:52:27,644 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:52:27,644 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, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:52:27,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 00:52:27,644 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:52:27,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:52:27,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1596267989, now seen corresponding path program 1 times [2024-10-24 00:52:27,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:52:27,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220965152] [2024-10-24 00:52:27,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:52:27,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:52:27,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:27,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:52:27,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:27,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:52:27,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:27,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:52:27,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:27,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:52:27,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:27,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:52:27,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:27,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:52:27,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:27,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 00:52:27,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:27,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 00:52:27,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:27,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 00:52:27,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:27,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 00:52:27,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:27,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 00:52:27,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:27,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-24 00:52:27,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:27,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-24 00:52:27,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:27,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-24 00:52:27,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:27,736 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-24 00:52:27,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:52:27,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220965152] [2024-10-24 00:52:27,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220965152] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:52:27,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:52:27,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 00:52:27,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928620020] [2024-10-24 00:52:27,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:52:27,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 00:52:27,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:52:27,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 00:52:27,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 00:52:27,738 INFO L87 Difference]: Start difference. First operand 8458 states and 14570 transitions. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-24 00:52:28,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:52:28,830 INFO L93 Difference]: Finished difference Result 21926 states and 38545 transitions. [2024-10-24 00:52:28,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 00:52:28,831 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 129 [2024-10-24 00:52:28,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:52:28,914 INFO L225 Difference]: With dead ends: 21926 [2024-10-24 00:52:28,914 INFO L226 Difference]: Without dead ends: 14893 [2024-10-24 00:52:28,945 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-24 00:52:28,946 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 643 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 831 mSolverCounterSat, 229 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 658 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 1060 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 229 IncrementalHoareTripleChecker+Valid, 831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 00:52:28,946 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [658 Valid, 593 Invalid, 1060 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [229 Valid, 831 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 00:52:28,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14893 states. [2024-10-24 00:52:29,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14893 to 14842. [2024-10-24 00:52:29,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14842 states, 12056 states have (on average 1.6265759787657599) internal successors, (19610), 12063 states have internal predecessors, (19610), 2764 states have call successors, (2764), 17 states have call predecessors, (2764), 21 states have return successors, (3103), 2763 states have call predecessors, (3103), 2763 states have call successors, (3103) [2024-10-24 00:52:29,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14842 states to 14842 states and 25477 transitions. [2024-10-24 00:52:29,835 INFO L78 Accepts]: Start accepts. Automaton has 14842 states and 25477 transitions. Word has length 129 [2024-10-24 00:52:29,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:52:29,836 INFO L471 AbstractCegarLoop]: Abstraction has 14842 states and 25477 transitions. [2024-10-24 00:52:29,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-24 00:52:29,837 INFO L276 IsEmpty]: Start isEmpty. Operand 14842 states and 25477 transitions. [2024-10-24 00:52:29,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-10-24 00:52:29,874 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:52:29,874 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:52:29,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-24 00:52:29,875 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:52:29,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:52:29,875 INFO L85 PathProgramCache]: Analyzing trace with hash 1907457133, now seen corresponding path program 1 times [2024-10-24 00:52:29,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:52:29,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788628406] [2024-10-24 00:52:29,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:52:29,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:52:29,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:29,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:52:29,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:29,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:52:29,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:29,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:52:29,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:29,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:52:29,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:29,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:52:29,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:29,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:52:29,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:29,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 00:52:29,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:29,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 00:52:29,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:29,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 00:52:29,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:29,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-24 00:52:29,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:29,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-24 00:52:29,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:29,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 00:52:29,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:29,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 00:52:29,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:29,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 00:52:29,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:29,984 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-24 00:52:29,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:52:29,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788628406] [2024-10-24 00:52:29,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788628406] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:52:29,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:52:29,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 00:52:29,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118332436] [2024-10-24 00:52:29,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:52:29,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 00:52:29,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:52:29,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 00:52:29,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 00:52:29,987 INFO L87 Difference]: Start difference. First operand 14842 states and 25477 transitions. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-24 00:52:31,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:52:31,215 INFO L93 Difference]: Finished difference Result 39285 states and 68931 transitions. [2024-10-24 00:52:31,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 00:52:31,215 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 130 [2024-10-24 00:52:31,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:52:31,339 INFO L225 Difference]: With dead ends: 39285 [2024-10-24 00:52:31,340 INFO L226 Difference]: Without dead ends: 26460 [2024-10-24 00:52:31,373 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-24 00:52:31,374 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 641 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 806 mSolverCounterSat, 232 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 656 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 1038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 232 IncrementalHoareTripleChecker+Valid, 806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 00:52:31,374 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [656 Valid, 571 Invalid, 1038 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [232 Valid, 806 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 00:52:31,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26460 states. [2024-10-24 00:52:32,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26460 to 26409. [2024-10-24 00:52:32,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26409 states, 21584 states have (on average 1.6222664936990363) internal successors, (35015), 21591 states have internal predecessors, (35015), 4803 states have call successors, (4803), 17 states have call predecessors, (4803), 21 states have return successors, (5416), 4802 states have call predecessors, (5416), 4802 states have call successors, (5416) [2024-10-24 00:52:32,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26409 states to 26409 states and 45234 transitions. [2024-10-24 00:52:32,745 INFO L78 Accepts]: Start accepts. Automaton has 26409 states and 45234 transitions. Word has length 130 [2024-10-24 00:52:32,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:52:32,747 INFO L471 AbstractCegarLoop]: Abstraction has 26409 states and 45234 transitions. [2024-10-24 00:52:32,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-24 00:52:32,747 INFO L276 IsEmpty]: Start isEmpty. Operand 26409 states and 45234 transitions. [2024-10-24 00:52:32,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-24 00:52:32,792 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:52:32,793 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:52:32,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-24 00:52:32,793 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:52:32,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:52:32,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1185031885, now seen corresponding path program 1 times [2024-10-24 00:52:32,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:52:32,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089994946] [2024-10-24 00:52:32,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:52:32,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:52:32,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:32,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:52:32,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:32,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:52:32,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:32,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:52:32,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:32,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:52:32,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:32,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:52:32,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:32,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:52:32,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:32,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 00:52:32,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:32,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 00:52:32,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:32,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 00:52:32,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:32,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 00:52:32,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:32,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 00:52:32,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:32,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 00:52:32,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:32,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 00:52:32,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:32,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 00:52:32,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:32,915 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-24 00:52:32,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:52:32,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089994946] [2024-10-24 00:52:32,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089994946] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:52:32,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:52:32,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 00:52:32,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432437598] [2024-10-24 00:52:32,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:52:32,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 00:52:32,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:52:32,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 00:52:32,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 00:52:32,919 INFO L87 Difference]: Start difference. First operand 26409 states and 45234 transitions. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-24 00:52:34,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:52:34,774 INFO L93 Difference]: Finished difference Result 71897 states and 125355 transitions. [2024-10-24 00:52:34,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 00:52:34,775 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 131 [2024-10-24 00:52:34,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:52:35,032 INFO L225 Difference]: With dead ends: 71897 [2024-10-24 00:52:35,033 INFO L226 Difference]: Without dead ends: 48220 [2024-10-24 00:52:35,121 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-24 00:52:35,122 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 639 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 823 mSolverCounterSat, 229 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 654 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 1052 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 229 IncrementalHoareTripleChecker+Valid, 823 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 00:52:35,122 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [654 Valid, 581 Invalid, 1052 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [229 Valid, 823 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 00:52:35,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48220 states. [2024-10-24 00:52:37,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48220 to 48169. [2024-10-24 00:52:37,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48169 states, 39629 states have (on average 1.6166696106386738) internal successors, (64067), 39636 states have internal predecessors, (64067), 8518 states have call successors, (8518), 17 states have call predecessors, (8518), 21 states have return successors, (9663), 8517 states have call predecessors, (9663), 8517 states have call successors, (9663) [2024-10-24 00:52:37,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48169 states to 48169 states and 82248 transitions. [2024-10-24 00:52:37,431 INFO L78 Accepts]: Start accepts. Automaton has 48169 states and 82248 transitions. Word has length 131 [2024-10-24 00:52:37,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:52:37,432 INFO L471 AbstractCegarLoop]: Abstraction has 48169 states and 82248 transitions. [2024-10-24 00:52:37,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-24 00:52:37,432 INFO L276 IsEmpty]: Start isEmpty. Operand 48169 states and 82248 transitions. [2024-10-24 00:52:37,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-10-24 00:52:37,477 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:52:37,477 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:52:37,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-24 00:52:37,477 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:52:37,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:52:37,478 INFO L85 PathProgramCache]: Analyzing trace with hash 817092301, now seen corresponding path program 1 times [2024-10-24 00:52:37,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:52:37,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450484246] [2024-10-24 00:52:37,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:52:37,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:52:37,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:37,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:52:37,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:37,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:52:37,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:37,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:52:37,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:37,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:52:37,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:37,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:52:37,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:37,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:52:37,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:37,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-24 00:52:37,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:37,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 00:52:37,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:37,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 00:52:37,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:37,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-24 00:52:37,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:37,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-24 00:52:37,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:37,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 00:52:37,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:37,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 00:52:37,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:37,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-24 00:52:37,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:37,578 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-24 00:52:37,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:52:37,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450484246] [2024-10-24 00:52:37,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450484246] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:52:37,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:52:37,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 00:52:37,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910662810] [2024-10-24 00:52:37,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:52:37,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 00:52:37,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:52:37,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 00:52:37,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 00:52:37,580 INFO L87 Difference]: Start difference. First operand 48169 states and 82248 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-24 00:52:40,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:52:40,321 INFO L93 Difference]: Finished difference Result 89616 states and 156719 transitions. [2024-10-24 00:52:40,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 00:52:40,321 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 132 [2024-10-24 00:52:40,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:52:40,772 INFO L225 Difference]: With dead ends: 89616 [2024-10-24 00:52:40,773 INFO L226 Difference]: Without dead ends: 89508 [2024-10-24 00:52:40,825 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-24 00:52:40,826 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 634 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 821 mSolverCounterSat, 225 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 648 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 1046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 225 IncrementalHoareTripleChecker+Valid, 821 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 00:52:40,827 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [648 Valid, 583 Invalid, 1046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [225 Valid, 821 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 00:52:40,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89508 states. [2024-10-24 00:52:44,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89508 to 89457. [2024-10-24 00:52:44,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89457 states, 74118 states have (on average 1.609555033864918) internal successors, (119297), 74125 states have internal predecessors, (119297), 15317 states have call successors, (15317), 17 states have call predecessors, (15317), 21 states have return successors, (17508), 15316 states have call predecessors, (17508), 15316 states have call successors, (17508) [2024-10-24 00:52:44,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89457 states to 89457 states and 152122 transitions. [2024-10-24 00:52:44,644 INFO L78 Accepts]: Start accepts. Automaton has 89457 states and 152122 transitions. Word has length 132 [2024-10-24 00:52:44,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:52:44,645 INFO L471 AbstractCegarLoop]: Abstraction has 89457 states and 152122 transitions. [2024-10-24 00:52:44,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-24 00:52:44,645 INFO L276 IsEmpty]: Start isEmpty. Operand 89457 states and 152122 transitions. [2024-10-24 00:52:44,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-10-24 00:52:44,707 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:52:44,707 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:52:44,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-24 00:52:44,708 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:52:44,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:52:44,708 INFO L85 PathProgramCache]: Analyzing trace with hash 88983756, now seen corresponding path program 1 times [2024-10-24 00:52:44,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:52:44,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804461090] [2024-10-24 00:52:44,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:52:44,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:52:44,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:45,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:52:45,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:45,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:52:45,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:45,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:52:45,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:45,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:52:45,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:45,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:52:45,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:45,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:52:45,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:45,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-24 00:52:45,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:45,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-24 00:52:45,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:45,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-24 00:52:45,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:45,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 00:52:45,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:45,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 00:52:45,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:45,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 00:52:45,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:45,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-24 00:52:45,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:45,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-24 00:52:45,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:45,483 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-10-24 00:52:45,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:52:45,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804461090] [2024-10-24 00:52:45,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804461090] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:52:45,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [307811234] [2024-10-24 00:52:45,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:52:45,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:52:45,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:52:45,486 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) [2024-10-24 00:52:45,487 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-24 00:52:45,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:45,796 INFO L255 TraceCheckSpWp]: Trace formula consists of 1041 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-24 00:52:45,801 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:52:46,201 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-24 00:52:46,201 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 00:52:46,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [307811234] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:52:46,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 00:52:46,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [14] total 23 [2024-10-24 00:52:46,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332308293] [2024-10-24 00:52:46,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:52:46,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-24 00:52:46,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:52:46,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-24 00:52:46,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=438, Unknown=0, NotChecked=0, Total=506 [2024-10-24 00:52:46,203 INFO L87 Difference]: Start difference. First operand 89457 states and 152122 transitions. Second operand has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 8 states have internal predecessors, (97), 5 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2024-10-24 00:52:50,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:52:50,291 INFO L93 Difference]: Finished difference Result 178254 states and 308627 transitions. [2024-10-24 00:52:50,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 00:52:50,291 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 8 states have internal predecessors, (97), 5 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) Word has length 133 [2024-10-24 00:52:50,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:52:51,381 INFO L225 Difference]: With dead ends: 178254 [2024-10-24 00:52:51,382 INFO L226 Difference]: Without dead ends: 178153 [2024-10-24 00:52:51,454 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=129, Invalid=801, Unknown=0, NotChecked=0, Total=930 [2024-10-24 00:52:51,455 INFO L432 NwaCegarLoop]: 457 mSDtfsCounter, 596 mSDsluCounter, 2877 mSDsCounter, 0 mSdLazyCounter, 810 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 598 SdHoareTripleChecker+Valid, 3334 SdHoareTripleChecker+Invalid, 884 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 00:52:51,457 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [598 Valid, 3334 Invalid, 884 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 810 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 00:52:51,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178153 states. [2024-10-24 00:52:58,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178153 to 178128. [2024-10-24 00:52:58,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178128 states, 147657 states have (on average 1.6105636712109823) internal successors, (237811), 147559 states have internal predecessors, (237811), 30421 states have call successors, (30421), 44 states have call predecessors, (30421), 49 states have return successors, (38070), 30530 states have call predecessors, (38070), 30418 states have call successors, (38070) [2024-10-24 00:52:59,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178128 states to 178128 states and 306302 transitions. [2024-10-24 00:52:59,461 INFO L78 Accepts]: Start accepts. Automaton has 178128 states and 306302 transitions. Word has length 133 [2024-10-24 00:52:59,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:52:59,461 INFO L471 AbstractCegarLoop]: Abstraction has 178128 states and 306302 transitions. [2024-10-24 00:52:59,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 8 states have internal predecessors, (97), 5 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2024-10-24 00:52:59,462 INFO L276 IsEmpty]: Start isEmpty. Operand 178128 states and 306302 transitions. [2024-10-24 00:52:59,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-10-24 00:52:59,598 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:52:59,598 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:52:59,619 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-10-24 00:52:59,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:52:59,803 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:52:59,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:52:59,803 INFO L85 PathProgramCache]: Analyzing trace with hash -406446873, now seen corresponding path program 1 times [2024-10-24 00:52:59,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:52:59,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492267956] [2024-10-24 00:52:59,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:52:59,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:52:59,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:00,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:53:00,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:00,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:53:00,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:00,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:53:00,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:00,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:53:00,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:00,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:53:00,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:00,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:53:00,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:00,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-24 00:53:00,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:00,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-24 00:53:00,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:00,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 00:53:00,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:00,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 00:53:00,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:00,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 00:53:00,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:00,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-24 00:53:00,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:00,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-24 00:53:00,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:00,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-24 00:53:00,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:00,068 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-24 00:53:00,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:53:00,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492267956] [2024-10-24 00:53:00,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492267956] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:53:00,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:53:00,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-24 00:53:00,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080745267] [2024-10-24 00:53:00,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:53:00,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-24 00:53:00,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:53:00,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-24 00:53:00,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-10-24 00:53:00,074 INFO L87 Difference]: Start difference. First operand 178128 states and 306302 transitions. Second operand has 11 states, 11 states have (on average 8.0) internal successors, (88), 6 states have internal predecessors, (88), 4 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-10-24 00:53:05,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:53:05,326 INFO L93 Difference]: Finished difference Result 178782 states and 313779 transitions. [2024-10-24 00:53:05,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 00:53:05,327 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.0) internal successors, (88), 6 states have internal predecessors, (88), 4 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 134 [2024-10-24 00:53:05,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:53:06,075 INFO L225 Difference]: With dead ends: 178782 [2024-10-24 00:53:06,075 INFO L226 Difference]: Without dead ends: 178388 [2024-10-24 00:53:06,157 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=125, Invalid=337, Unknown=0, NotChecked=0, Total=462 [2024-10-24 00:53:06,158 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 1074 mSDsluCounter, 876 mSDsCounter, 0 mSdLazyCounter, 2134 mSolverCounterSat, 367 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1089 SdHoareTripleChecker+Valid, 1021 SdHoareTripleChecker+Invalid, 2501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 367 IncrementalHoareTripleChecker+Valid, 2134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-24 00:53:06,158 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1089 Valid, 1021 Invalid, 2501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [367 Valid, 2134 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-24 00:53:06,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178388 states.