./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec7_product24.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/email_spec7_product24.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 312fc8529e2c53d6a3be2cb9c54168ebb93fc3f65452574800e27c42fdf03e19 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 07:46:40,782 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 07:46:40,851 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 07:46:40,858 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 07:46:40,859 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 07:46:40,890 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 07:46:40,891 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 07:46:40,891 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 07:46:40,892 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 07:46:40,893 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 07:46:40,893 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 07:46:40,893 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 07:46:40,894 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 07:46:40,896 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 07:46:40,897 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 07:46:40,897 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 07:46:40,897 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 07:46:40,898 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 07:46:40,898 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 07:46:40,898 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 07:46:40,899 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 07:46:40,899 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 07:46:40,899 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 07:46:40,900 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 07:46:40,900 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 07:46:40,900 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 07:46:40,901 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 07:46:40,901 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 07:46:40,901 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 07:46:40,901 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 07:46:40,902 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 07:46:40,902 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 07:46:40,902 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 07:46:40,903 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 07:46:40,903 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 07:46:40,903 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 07:46:40,903 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 07:46:40,904 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 07:46:40,904 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 07:46:40,904 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 07:46:40,904 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 07:46:40,905 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 07:46:40,906 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 312fc8529e2c53d6a3be2cb9c54168ebb93fc3f65452574800e27c42fdf03e19 [2024-11-16 07:46:41,124 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 07:46:41,149 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 07:46:41,152 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 07:46:41,153 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 07:46:41,154 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 07:46:41,155 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec7_product24.cil.c [2024-11-16 07:46:42,441 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 07:46:42,681 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 07:46:42,681 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec7_product24.cil.c [2024-11-16 07:46:42,706 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab24ead3a/d36768239a524a8ea259ce2df30def18/FLAGa5749b2e4 [2024-11-16 07:46:43,000 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab24ead3a/d36768239a524a8ea259ce2df30def18 [2024-11-16 07:46:43,003 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 07:46:43,004 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 07:46:43,005 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 07:46:43,006 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 07:46:43,010 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 07:46:43,011 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:46:43" (1/1) ... [2024-11-16 07:46:43,012 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67d7e11d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:46:43, skipping insertion in model container [2024-11-16 07:46:43,012 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:46:43" (1/1) ... [2024-11-16 07:46:43,061 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 07:46:43,499 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec7_product24.cil.c[62782,62795] [2024-11-16 07:46:43,503 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 07:46:43,518 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 07:46:43,526 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [48] [2024-11-16 07:46:43,527 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [277] [2024-11-16 07:46:43,528 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [643] [2024-11-16 07:46:43,528 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1055] [2024-11-16 07:46:43,528 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1371] [2024-11-16 07:46:43,528 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2442] [2024-11-16 07:46:43,528 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptVerify_spec.i","") [2764] [2024-11-16 07:46:43,529 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2783] [2024-11-16 07:46:43,529 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2879] [2024-11-16 07:46:43,529 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2896] [2024-11-16 07:46:43,530 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2931] [2024-11-16 07:46:43,606 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec7_product24.cil.c[62782,62795] [2024-11-16 07:46:43,607 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 07:46:43,634 INFO L204 MainTranslator]: Completed translation [2024-11-16 07:46:43,634 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:46:43 WrapperNode [2024-11-16 07:46:43,634 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 07:46:43,635 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 07:46:43,635 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 07:46:43,635 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 07:46:43,640 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:46:43" (1/1) ... [2024-11-16 07:46:43,666 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:46:43" (1/1) ... [2024-11-16 07:46:43,703 INFO L138 Inliner]: procedures = 130, calls = 192, calls flagged for inlining = 64, calls inlined = 59, statements flattened = 1052 [2024-11-16 07:46:43,704 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 07:46:43,704 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 07:46:43,704 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 07:46:43,704 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 07:46:43,717 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:46:43" (1/1) ... [2024-11-16 07:46:43,717 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:46:43" (1/1) ... [2024-11-16 07:46:43,721 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:46:43" (1/1) ... [2024-11-16 07:46:43,741 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 4, 4, 4]. 29 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0]. [2024-11-16 07:46:43,741 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:46:43" (1/1) ... [2024-11-16 07:46:43,741 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:46:43" (1/1) ... [2024-11-16 07:46:43,752 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:46:43" (1/1) ... [2024-11-16 07:46:43,753 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:46:43" (1/1) ... [2024-11-16 07:46:43,756 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:46:43" (1/1) ... [2024-11-16 07:46:43,758 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:46:43" (1/1) ... [2024-11-16 07:46:43,767 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 07:46:43,768 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 07:46:43,768 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 07:46:43,768 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 07:46:43,768 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:46:43" (1/1) ... [2024-11-16 07:46:43,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 07:46:43,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:46:43,805 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 07:46:43,807 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 07:46:43,847 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-16 07:46:43,847 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-16 07:46:43,848 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-16 07:46:43,848 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-16 07:46:43,848 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-16 07:46:43,848 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-16 07:46:43,848 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-16 07:46:43,849 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-16 07:46:43,849 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-16 07:46:43,849 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-16 07:46:43,849 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-16 07:46:43,849 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-16 07:46:43,850 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-16 07:46:43,850 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-16 07:46:43,850 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2024-11-16 07:46:43,850 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2024-11-16 07:46:43,851 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-16 07:46:43,851 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-16 07:46:43,851 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 07:46:43,852 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-16 07:46:43,852 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-16 07:46:43,852 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-16 07:46:43,852 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-16 07:46:43,852 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-16 07:46:43,852 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-16 07:46:43,852 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-16 07:46:43,852 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-16 07:46:43,852 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-16 07:46:43,852 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-16 07:46:43,852 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-16 07:46:43,852 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-16 07:46:43,852 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-16 07:46:43,852 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-16 07:46:43,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 07:46:43,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-16 07:46:43,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-16 07:46:43,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-16 07:46:43,853 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-16 07:46:43,853 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-16 07:46:43,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 07:46:43,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 07:46:44,029 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 07:46:44,031 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 07:46:44,075 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L999: #res := ~retValue_acc~12; [2024-11-16 07:46:44,317 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1984-1: getClientPrivateKey_#res#1 := getClientPrivateKey_~retValue_acc~24#1; [2024-11-16 07:46:44,318 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1036-1: isVerified_#res#1 := isVerified_~retValue_acc~13#1; [2024-11-16 07:46:44,318 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2300-1: findPublicKey_#res#1 := findPublicKey_~retValue_acc~29#1; [2024-11-16 07:46:44,318 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1937-1: getClientAutoResponse_#res#1 := getClientAutoResponse_~retValue_acc~23#1; [2024-11-16 07:46:44,318 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L699-1: getEmailId_#res#1 := getEmailId_~retValue_acc~4#1; [2024-11-16 07:46:44,318 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2419-1: getClientId_#res#1 := getClientId_~retValue_acc~31#1; [2024-11-16 07:46:44,318 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2651-1: isKeyPairValid_#res#1 := isKeyPairValid_~retValue_acc~36#1; [2024-11-16 07:46:44,318 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2372-1: getClientForwardReceiver_#res#1 := getClientForwardReceiver_~retValue_acc~30#1; [2024-11-16 07:46:44,324 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L962: #res := ~retValue_acc~11; [2024-11-16 07:46:44,343 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L773: #res := ~retValue_acc~6; [2024-11-16 07:46:44,368 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2076: #res#1 := ~retValue_acc~26#1; [2024-11-16 07:46:44,368 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2031-1: getClientKeyringSize_#res#1 := getClientKeyringSize_~retValue_acc~25#1; [2024-11-16 07:46:44,392 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2876-1: createEmail_#res#1 := createEmail_~retValue_acc~39#1; [2024-11-16 07:46:44,664 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2928-1: valid_product_#res#1 := valid_product_~retValue_acc~42#1; [2024-11-16 07:46:44,665 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2617-1: get_queued_client_#res#1 := get_queued_client_~retValue_acc~34#1; [2024-11-16 07:46:44,666 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2139-1: getClientKeyringUser_#res#1 := getClientKeyringUser_~retValue_acc~27#1; [2024-11-16 07:46:44,666 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2608-1: is_queue_empty_#res#1 := is_queue_empty_~retValue_acc~33#1; [2024-11-16 07:46:44,666 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2246-1: getClientKeyringPublicKey_#res#1 := getClientKeyringPublicKey_~retValue_acc~28#1; [2024-11-16 07:46:44,666 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2626-1: get_queued_email_#res#1 := get_queued_email_~retValue_acc~35#1; [2024-11-16 07:46:44,671 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L736: #res := ~retValue_acc~5; [2024-11-16 07:46:44,673 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2852: #res := ~retValue_acc~37; [2024-11-16 07:46:44,779 INFO L? ?]: Removed 457 outVars from TransFormulas that were not future-live. [2024-11-16 07:46:44,780 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 07:46:44,804 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 07:46:44,805 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 07:46:44,805 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:46:44 BoogieIcfgContainer [2024-11-16 07:46:44,805 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 07:46:44,807 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 07:46:44,807 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 07:46:44,810 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 07:46:44,810 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:46:43" (1/3) ... [2024-11-16 07:46:44,811 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53a2b2db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:46:44, skipping insertion in model container [2024-11-16 07:46:44,812 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:46:43" (2/3) ... [2024-11-16 07:46:44,812 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53a2b2db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:46:44, skipping insertion in model container [2024-11-16 07:46:44,813 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:46:44" (3/3) ... [2024-11-16 07:46:44,814 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec7_product24.cil.c [2024-11-16 07:46:44,829 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 07:46:44,829 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 07:46:44,903 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 07:46:44,910 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;@64326e23, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 07:46:44,910 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 07:46:44,916 INFO L276 IsEmpty]: Start isEmpty. Operand has 333 states, 268 states have (on average 1.507462686567164) internal successors, (404), 270 states have internal predecessors, (404), 46 states have call successors, (46), 17 states have call predecessors, (46), 17 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-16 07:46:44,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-16 07:46:44,929 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:46:44,930 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:46:44,930 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:46:44,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:46:44,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1927604283, now seen corresponding path program 1 times [2024-11-16 07:46:44,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:46:44,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377662106] [2024-11-16 07:46:44,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:46:44,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:46:45,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:45,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:46:45,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:45,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:46:45,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:45,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:46:45,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:45,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 07:46:45,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:45,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 07:46:45,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:45,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 07:46:45,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:45,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-16 07:46:45,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:45,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-16 07:46:45,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:45,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-16 07:46:45,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:45,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 07:46:45,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:45,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-16 07:46:45,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:45,630 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-16 07:46:45,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:46:45,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377662106] [2024-11-16 07:46:45,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377662106] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 07:46:45,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1428400584] [2024-11-16 07:46:45,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:46:45,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:46:45,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:46:45,635 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 07:46:45,636 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 07:46:45,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:45,919 INFO L255 TraceCheckSpWp]: Trace formula consists of 932 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-16 07:46:45,926 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 07:46:45,948 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-16 07:46:45,949 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 07:46:45,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1428400584] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:46:45,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 07:46:45,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2024-11-16 07:46:45,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526897106] [2024-11-16 07:46:45,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:46:45,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 07:46:45,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:46:45,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 07:46:45,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-16 07:46:45,989 INFO L87 Difference]: Start difference. First operand has 333 states, 268 states have (on average 1.507462686567164) internal successors, (404), 270 states have internal predecessors, (404), 46 states have call successors, (46), 17 states have call predecessors, (46), 17 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) Second operand has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-16 07:46:46,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:46:46,048 INFO L93 Difference]: Finished difference Result 495 states and 726 transitions. [2024-11-16 07:46:46,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 07:46:46,050 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 87 [2024-11-16 07:46:46,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:46:46,062 INFO L225 Difference]: With dead ends: 495 [2024-11-16 07:46:46,062 INFO L226 Difference]: Without dead ends: 325 [2024-11-16 07:46:46,069 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-16 07:46:46,074 INFO L432 NwaCegarLoop]: 491 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 07:46:46,074 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 07:46:46,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2024-11-16 07:46:46,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 325. [2024-11-16 07:46:46,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 261 states have (on average 1.5019157088122606) internal successors, (392), 262 states have internal predecessors, (392), 46 states have call successors, (46), 17 states have call predecessors, (46), 17 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-16 07:46:46,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 483 transitions. [2024-11-16 07:46:46,132 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 483 transitions. Word has length 87 [2024-11-16 07:46:46,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:46:46,134 INFO L471 AbstractCegarLoop]: Abstraction has 325 states and 483 transitions. [2024-11-16 07:46:46,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-16 07:46:46,134 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 483 transitions. [2024-11-16 07:46:46,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-16 07:46:46,137 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:46:46,137 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:46:46,151 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 07:46:46,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-16 07:46:46,342 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:46:46,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:46:46,342 INFO L85 PathProgramCache]: Analyzing trace with hash 632029378, now seen corresponding path program 1 times [2024-11-16 07:46:46,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:46:46,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814755407] [2024-11-16 07:46:46,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:46:46,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:46:46,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:46,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:46:46,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:46,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:46:46,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:46,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:46:46,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:46,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 07:46:46,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:46,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 07:46:46,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:46,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 07:46:46,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:46,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 07:46:46,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:46,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 07:46:46,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:46,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-16 07:46:46,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:46,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-16 07:46:46,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:46,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-16 07:46:46,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:46,647 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-16 07:46:46,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:46:46,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814755407] [2024-11-16 07:46:46,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814755407] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 07:46:46,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [921939353] [2024-11-16 07:46:46,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:46:46,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:46:46,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:46:46,650 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 07:46:46,658 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 07:46:46,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:46,861 INFO L255 TraceCheckSpWp]: Trace formula consists of 935 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 07:46:46,867 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 07:46:46,904 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-16 07:46:46,904 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 07:46:46,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [921939353] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:46:46,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 07:46:46,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-16 07:46:46,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218695412] [2024-11-16 07:46:46,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:46:46,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 07:46:46,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:46:46,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 07:46:46,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-16 07:46:46,914 INFO L87 Difference]: Start difference. First operand 325 states and 483 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-16 07:46:46,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:46:46,952 INFO L93 Difference]: Finished difference Result 485 states and 707 transitions. [2024-11-16 07:46:46,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 07:46:46,952 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 90 [2024-11-16 07:46:46,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:46:46,957 INFO L225 Difference]: With dead ends: 485 [2024-11-16 07:46:46,957 INFO L226 Difference]: Without dead ends: 329 [2024-11-16 07:46:46,958 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-16 07:46:46,961 INFO L432 NwaCegarLoop]: 482 mSDtfsCounter, 0 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 962 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 07:46:46,962 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 962 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 07:46:46,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2024-11-16 07:46:46,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 329. [2024-11-16 07:46:46,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 265 states have (on average 1.4943396226415093) internal successors, (396), 266 states have internal predecessors, (396), 46 states have call successors, (46), 17 states have call predecessors, (46), 17 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-16 07:46:46,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 487 transitions. [2024-11-16 07:46:46,979 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 487 transitions. Word has length 90 [2024-11-16 07:46:46,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:46:46,979 INFO L471 AbstractCegarLoop]: Abstraction has 329 states and 487 transitions. [2024-11-16 07:46:46,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-16 07:46:46,980 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 487 transitions. [2024-11-16 07:46:46,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-16 07:46:46,982 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:46:46,982 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] [2024-11-16 07:46:47,005 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-16 07:46:47,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-16 07:46:47,183 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:46:47,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:46:47,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1507199702, now seen corresponding path program 1 times [2024-11-16 07:46:47,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:46:47,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957287160] [2024-11-16 07:46:47,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:46:47,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:46:47,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:47,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:46:47,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:47,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:46:47,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:47,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:46:47,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:47,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 07:46:47,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:47,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 07:46:47,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:47,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 07:46:47,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:47,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 07:46:47,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:47,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 07:46:47,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:47,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-16 07:46:47,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:47,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 07:46:47,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:47,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 07:46:47,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:47,367 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-16 07:46:47,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:46:47,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957287160] [2024-11-16 07:46:47,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957287160] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 07:46:47,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [542730680] [2024-11-16 07:46:47,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:46:47,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:46:47,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:46:47,369 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 07:46:47,372 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 07:46:47,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:47,579 INFO L255 TraceCheckSpWp]: Trace formula consists of 963 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-16 07:46:47,582 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 07:46:47,605 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-16 07:46:47,606 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 07:46:47,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [542730680] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:46:47,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 07:46:47,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-16 07:46:47,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092001845] [2024-11-16 07:46:47,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:46:47,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 07:46:47,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:46:47,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 07:46:47,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-16 07:46:47,609 INFO L87 Difference]: Start difference. First operand 329 states and 487 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, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-16 07:46:47,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:46:47,636 INFO L93 Difference]: Finished difference Result 702 states and 1050 transitions. [2024-11-16 07:46:47,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 07:46:47,637 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, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 101 [2024-11-16 07:46:47,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:46:47,642 INFO L225 Difference]: With dead ends: 702 [2024-11-16 07:46:47,643 INFO L226 Difference]: Without dead ends: 402 [2024-11-16 07:46:47,644 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-16 07:46:47,645 INFO L432 NwaCegarLoop]: 492 mSDtfsCounter, 125 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 926 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 07:46:47,646 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 926 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 07:46:47,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2024-11-16 07:46:47,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 394. [2024-11-16 07:46:47,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 319 states have (on average 1.4952978056426331) internal successors, (477), 320 states have internal predecessors, (477), 57 states have call successors, (57), 17 states have call predecessors, (57), 17 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-16 07:46:47,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 590 transitions. [2024-11-16 07:46:47,672 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 590 transitions. Word has length 101 [2024-11-16 07:46:47,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:46:47,672 INFO L471 AbstractCegarLoop]: Abstraction has 394 states and 590 transitions. [2024-11-16 07:46:47,672 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, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-16 07:46:47,673 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 590 transitions. [2024-11-16 07:46:47,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-16 07:46:47,675 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:46:47,675 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] [2024-11-16 07:46:47,690 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-16 07:46:47,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:46:47,876 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:46:47,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:46:47,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1652575575, now seen corresponding path program 1 times [2024-11-16 07:46:47,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:46:47,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712872067] [2024-11-16 07:46:47,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:46:47,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:46:47,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:48,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:46:48,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:48,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:46:48,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:48,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:46:48,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:48,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 07:46:48,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:48,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 07:46:48,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:48,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 07:46:48,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:48,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-16 07:46:48,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:48,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-16 07:46:48,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:48,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-16 07:46:48,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:48,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 07:46:48,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:48,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 07:46:48,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:48,077 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-16 07:46:48,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:46:48,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712872067] [2024-11-16 07:46:48,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712872067] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 07:46:48,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [774973548] [2024-11-16 07:46:48,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:46:48,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:46:48,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:46:48,081 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 07:46:48,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-16 07:46:48,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:48,291 INFO L255 TraceCheckSpWp]: Trace formula consists of 968 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-16 07:46:48,295 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 07:46:48,354 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-16 07:46:48,355 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 07:46:48,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [774973548] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:46:48,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 07:46:48,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-11-16 07:46:48,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989806822] [2024-11-16 07:46:48,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:46:48,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 07:46:48,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:46:48,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 07:46:48,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-16 07:46:48,356 INFO L87 Difference]: Start difference. First operand 394 states and 590 transitions. Second operand has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-16 07:46:48,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:46:48,400 INFO L93 Difference]: Finished difference Result 779 states and 1170 transitions. [2024-11-16 07:46:48,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 07:46:48,400 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 102 [2024-11-16 07:46:48,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:46:48,404 INFO L225 Difference]: With dead ends: 779 [2024-11-16 07:46:48,404 INFO L226 Difference]: Without dead ends: 396 [2024-11-16 07:46:48,405 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-16 07:46:48,406 INFO L432 NwaCegarLoop]: 475 mSDtfsCounter, 2 mSDsluCounter, 1414 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1889 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 07:46:48,406 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1889 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 07:46:48,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2024-11-16 07:46:48,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 396. [2024-11-16 07:46:48,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 320 states have (on average 1.49375) internal successors, (478), 322 states have internal predecessors, (478), 57 states have call successors, (57), 17 states have call predecessors, (57), 18 states have return successors, (58), 56 states have call predecessors, (58), 56 states have call successors, (58) [2024-11-16 07:46:48,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 593 transitions. [2024-11-16 07:46:48,428 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 593 transitions. Word has length 102 [2024-11-16 07:46:48,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:46:48,428 INFO L471 AbstractCegarLoop]: Abstraction has 396 states and 593 transitions. [2024-11-16 07:46:48,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-16 07:46:48,428 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 593 transitions. [2024-11-16 07:46:48,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-16 07:46:48,429 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:46:48,430 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 07:46:48,446 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-16 07:46:48,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:46:48,630 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:46:48,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:46:48,631 INFO L85 PathProgramCache]: Analyzing trace with hash 468685609, now seen corresponding path program 1 times [2024-11-16 07:46:48,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:46:48,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833347320] [2024-11-16 07:46:48,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:46:48,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:46:48,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:48,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:46:48,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:48,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:46:48,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:48,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:46:48,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:48,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:46:48,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:48,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-16 07:46:48,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:48,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-16 07:46:48,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:48,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-16 07:46:48,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:48,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 07:46:48,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:48,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 07:46:48,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:48,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 07:46:48,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:48,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-16 07:46:48,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:48,832 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-16 07:46:48,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:46:48,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833347320] [2024-11-16 07:46:48,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833347320] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 07:46:48,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1863819416] [2024-11-16 07:46:48,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:46:48,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:46:48,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:46:48,834 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 07:46:48,835 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-16 07:46:49,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:49,042 INFO L255 TraceCheckSpWp]: Trace formula consists of 969 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-16 07:46:49,045 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 07:46:49,120 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-16 07:46:49,121 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 07:46:49,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1863819416] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:46:49,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 07:46:49,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-11-16 07:46:49,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095773885] [2024-11-16 07:46:49,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:46:49,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 07:46:49,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:46:49,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 07:46:49,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-11-16 07:46:49,123 INFO L87 Difference]: Start difference. First operand 396 states and 593 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-16 07:46:49,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:46:49,175 INFO L93 Difference]: Finished difference Result 781 states and 1175 transitions. [2024-11-16 07:46:49,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 07:46:49,176 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 103 [2024-11-16 07:46:49,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:46:49,178 INFO L225 Difference]: With dead ends: 781 [2024-11-16 07:46:49,178 INFO L226 Difference]: Without dead ends: 398 [2024-11-16 07:46:49,179 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-11-16 07:46:49,180 INFO L432 NwaCegarLoop]: 473 mSDtfsCounter, 2 mSDsluCounter, 1402 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1875 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 07:46:49,181 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1875 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 07:46:49,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2024-11-16 07:46:49,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 398. [2024-11-16 07:46:49,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 321 states have (on average 1.4922118380062306) internal successors, (479), 324 states have internal predecessors, (479), 57 states have call successors, (57), 17 states have call predecessors, (57), 19 states have return successors, (63), 56 states have call predecessors, (63), 56 states have call successors, (63) [2024-11-16 07:46:49,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 599 transitions. [2024-11-16 07:46:49,199 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 599 transitions. Word has length 103 [2024-11-16 07:46:49,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:46:49,199 INFO L471 AbstractCegarLoop]: Abstraction has 398 states and 599 transitions. [2024-11-16 07:46:49,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-16 07:46:49,199 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 599 transitions. [2024-11-16 07:46:49,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-16 07:46:49,201 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:46:49,201 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] [2024-11-16 07:46:49,215 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-16 07:46:49,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:46:49,402 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:46:49,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:46:49,403 INFO L85 PathProgramCache]: Analyzing trace with hash -326940860, now seen corresponding path program 1 times [2024-11-16 07:46:49,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:46:49,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620481373] [2024-11-16 07:46:49,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:46:49,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:46:49,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:49,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:46:49,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:49,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:46:49,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:49,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:46:49,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:49,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:46:49,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:49,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 07:46:49,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:49,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-16 07:46:49,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:49,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-16 07:46:49,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:49,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 07:46:49,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:49,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 07:46:49,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:49,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 07:46:49,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:49,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 07:46:49,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:49,552 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-16 07:46:49,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:46:49,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620481373] [2024-11-16 07:46:49,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620481373] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:46:49,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:46:49,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 07:46:49,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394668325] [2024-11-16 07:46:49,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:46:49,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 07:46:49,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:46:49,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 07:46:49,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-16 07:46:49,554 INFO L87 Difference]: Start difference. First operand 398 states and 599 transitions. Second operand has 9 states, 8 states have (on average 8.375) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-16 07:46:51,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:46:51,369 INFO L93 Difference]: Finished difference Result 959 states and 1460 transitions. [2024-11-16 07:46:51,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-16 07:46:51,370 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.375) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 104 [2024-11-16 07:46:51,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:46:51,373 INFO L225 Difference]: With dead ends: 959 [2024-11-16 07:46:51,373 INFO L226 Difference]: Without dead ends: 584 [2024-11-16 07:46:51,374 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-16 07:46:51,375 INFO L432 NwaCegarLoop]: 198 mSDtfsCounter, 1032 mSDsluCounter, 1062 mSDsCounter, 0 mSdLazyCounter, 2634 mSolverCounterSat, 286 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1033 SdHoareTripleChecker+Valid, 1260 SdHoareTripleChecker+Invalid, 2920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 286 IncrementalHoareTripleChecker+Valid, 2634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-16 07:46:51,375 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1033 Valid, 1260 Invalid, 2920 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [286 Valid, 2634 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-16 07:46:51,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2024-11-16 07:46:51,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 398. [2024-11-16 07:46:51,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 321 states have (on average 1.4922118380062306) internal successors, (479), 324 states have internal predecessors, (479), 57 states have call successors, (57), 17 states have call predecessors, (57), 19 states have return successors, (62), 56 states have call predecessors, (62), 56 states have call successors, (62) [2024-11-16 07:46:51,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 598 transitions. [2024-11-16 07:46:51,397 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 598 transitions. Word has length 104 [2024-11-16 07:46:51,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:46:51,398 INFO L471 AbstractCegarLoop]: Abstraction has 398 states and 598 transitions. [2024-11-16 07:46:51,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.375) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-16 07:46:51,398 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 598 transitions. [2024-11-16 07:46:51,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-16 07:46:51,399 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:46:51,399 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] [2024-11-16 07:46:51,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 07:46:51,399 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:46:51,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:46:51,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1537737314, now seen corresponding path program 2 times [2024-11-16 07:46:51,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:46:51,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104102254] [2024-11-16 07:46:51,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:46:51,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:46:51,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:51,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:46:51,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:51,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:46:51,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:51,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:46:51,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:51,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:46:51,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:51,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 07:46:51,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:51,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 07:46:51,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:51,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-16 07:46:51,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:51,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-16 07:46:51,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:51,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 07:46:51,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:51,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-16 07:46:51,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:51,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-16 07:46:51,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:51,580 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-16 07:46:51,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:46:51,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104102254] [2024-11-16 07:46:51,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104102254] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:46:51,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:46:51,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 07:46:51,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250054256] [2024-11-16 07:46:51,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:46:51,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 07:46:51,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:46:51,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 07:46:51,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-16 07:46:51,581 INFO L87 Difference]: Start difference. First operand 398 states and 598 transitions. Second operand has 9 states, 8 states have (on average 8.5) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-16 07:46:53,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:46:53,283 INFO L93 Difference]: Finished difference Result 961 states and 1463 transitions. [2024-11-16 07:46:53,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-16 07:46:53,284 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.5) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 105 [2024-11-16 07:46:53,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:46:53,287 INFO L225 Difference]: With dead ends: 961 [2024-11-16 07:46:53,287 INFO L226 Difference]: Without dead ends: 586 [2024-11-16 07:46:53,288 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-16 07:46:53,289 INFO L432 NwaCegarLoop]: 198 mSDtfsCounter, 1028 mSDsluCounter, 1062 mSDsCounter, 0 mSdLazyCounter, 2641 mSolverCounterSat, 286 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1029 SdHoareTripleChecker+Valid, 1260 SdHoareTripleChecker+Invalid, 2927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 286 IncrementalHoareTripleChecker+Valid, 2641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-16 07:46:53,289 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1029 Valid, 1260 Invalid, 2927 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [286 Valid, 2641 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-16 07:46:53,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2024-11-16 07:46:53,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 400. [2024-11-16 07:46:53,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 322 states have (on average 1.4906832298136645) internal successors, (480), 326 states have internal predecessors, (480), 57 states have call successors, (57), 17 states have call predecessors, (57), 20 states have return successors, (64), 56 states have call predecessors, (64), 56 states have call successors, (64) [2024-11-16 07:46:53,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 601 transitions. [2024-11-16 07:46:53,314 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 601 transitions. Word has length 105 [2024-11-16 07:46:53,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:46:53,314 INFO L471 AbstractCegarLoop]: Abstraction has 400 states and 601 transitions. [2024-11-16 07:46:53,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.5) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-16 07:46:53,314 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 601 transitions. [2024-11-16 07:46:53,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-16 07:46:53,316 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:46:53,316 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] [2024-11-16 07:46:53,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 07:46:53,316 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:46:53,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:46:53,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1134798113, now seen corresponding path program 1 times [2024-11-16 07:46:53,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:46:53,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497466102] [2024-11-16 07:46:53,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:46:53,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:46:53,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:53,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:46:53,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:53,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:46:53,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:53,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:46:53,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:53,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:46:53,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:53,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 07:46:53,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:53,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 07:46:53,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:53,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 07:46:53,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:53,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-16 07:46:53,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:53,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-16 07:46:53,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:53,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-16 07:46:53,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:53,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-16 07:46:53,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:53,492 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-16 07:46:53,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:46:53,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497466102] [2024-11-16 07:46:53,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497466102] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:46:53,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:46:53,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-16 07:46:53,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027688008] [2024-11-16 07:46:53,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:46:53,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-16 07:46:53,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:46:53,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-16 07:46:53,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-16 07:46:53,494 INFO L87 Difference]: Start difference. First operand 400 states and 601 transitions. Second operand has 12 states, 11 states have (on average 6.545454545454546) internal successors, (72), 8 states have internal predecessors, (72), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-16 07:46:55,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:46:55,639 INFO L93 Difference]: Finished difference Result 959 states and 1458 transitions. [2024-11-16 07:46:55,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 07:46:55,640 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.545454545454546) internal successors, (72), 8 states have internal predecessors, (72), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) Word has length 106 [2024-11-16 07:46:55,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:46:55,643 INFO L225 Difference]: With dead ends: 959 [2024-11-16 07:46:55,643 INFO L226 Difference]: Without dead ends: 586 [2024-11-16 07:46:55,644 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-11-16 07:46:55,645 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 1032 mSDsluCounter, 1548 mSDsCounter, 0 mSdLazyCounter, 4345 mSolverCounterSat, 292 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1033 SdHoareTripleChecker+Valid, 1744 SdHoareTripleChecker+Invalid, 4637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 292 IncrementalHoareTripleChecker+Valid, 4345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-16 07:46:55,645 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1033 Valid, 1744 Invalid, 4637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [292 Valid, 4345 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-16 07:46:55,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2024-11-16 07:46:55,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 400. [2024-11-16 07:46:55,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 322 states have (on average 1.4906832298136645) internal successors, (480), 326 states have internal predecessors, (480), 57 states have call successors, (57), 17 states have call predecessors, (57), 20 states have return successors, (63), 56 states have call predecessors, (63), 56 states have call successors, (63) [2024-11-16 07:46:55,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 600 transitions. [2024-11-16 07:46:55,674 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 600 transitions. Word has length 106 [2024-11-16 07:46:55,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:46:55,674 INFO L471 AbstractCegarLoop]: Abstraction has 400 states and 600 transitions. [2024-11-16 07:46:55,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.545454545454546) internal successors, (72), 8 states have internal predecessors, (72), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-16 07:46:55,674 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 600 transitions. [2024-11-16 07:46:55,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-16 07:46:55,676 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:46:55,676 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] [2024-11-16 07:46:55,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 07:46:55,676 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:46:55,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:46:55,677 INFO L85 PathProgramCache]: Analyzing trace with hash 239048316, now seen corresponding path program 2 times [2024-11-16 07:46:55,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:46:55,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70422650] [2024-11-16 07:46:55,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:46:55,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:46:55,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:55,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:46:55,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:55,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:46:55,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:55,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:46:55,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:55,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:46:55,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:55,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 07:46:55,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:55,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 07:46:55,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:55,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-16 07:46:55,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:55,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 07:46:55,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:55,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 07:46:55,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:55,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 07:46:55,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:55,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 07:46:55,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:55,870 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-16 07:46:55,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:46:55,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70422650] [2024-11-16 07:46:55,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70422650] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:46:55,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:46:55,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-16 07:46:55,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515978818] [2024-11-16 07:46:55,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:46:55,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-16 07:46:55,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:46:55,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-16 07:46:55,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-16 07:46:55,874 INFO L87 Difference]: Start difference. First operand 400 states and 600 transitions. Second operand has 12 states, 11 states have (on average 6.636363636363637) internal successors, (73), 8 states have internal predecessors, (73), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-16 07:46:57,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:46:57,972 INFO L93 Difference]: Finished difference Result 961 states and 1464 transitions. [2024-11-16 07:46:57,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 07:46:57,973 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.636363636363637) internal successors, (73), 8 states have internal predecessors, (73), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) Word has length 107 [2024-11-16 07:46:57,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:46:57,976 INFO L225 Difference]: With dead ends: 961 [2024-11-16 07:46:57,976 INFO L226 Difference]: Without dead ends: 588 [2024-11-16 07:46:57,977 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-11-16 07:46:57,977 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 1028 mSDsluCounter, 1548 mSDsCounter, 0 mSdLazyCounter, 4380 mSolverCounterSat, 289 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1030 SdHoareTripleChecker+Valid, 1744 SdHoareTripleChecker+Invalid, 4669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 289 IncrementalHoareTripleChecker+Valid, 4380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-16 07:46:57,977 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1030 Valid, 1744 Invalid, 4669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [289 Valid, 4380 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-16 07:46:57,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2024-11-16 07:46:57,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 402. [2024-11-16 07:46:57,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 323 states have (on average 1.4891640866873066) internal successors, (481), 328 states have internal predecessors, (481), 57 states have call successors, (57), 17 states have call predecessors, (57), 21 states have return successors, (68), 56 states have call predecessors, (68), 56 states have call successors, (68) [2024-11-16 07:46:57,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 606 transitions. [2024-11-16 07:46:57,996 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 606 transitions. Word has length 107 [2024-11-16 07:46:57,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:46:57,996 INFO L471 AbstractCegarLoop]: Abstraction has 402 states and 606 transitions. [2024-11-16 07:46:57,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.636363636363637) internal successors, (73), 8 states have internal predecessors, (73), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-16 07:46:57,996 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 606 transitions. [2024-11-16 07:46:57,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-16 07:46:57,997 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:46:57,998 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] [2024-11-16 07:46:57,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 07:46:57,998 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:46:57,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:46:57,998 INFO L85 PathProgramCache]: Analyzing trace with hash -127604675, now seen corresponding path program 1 times [2024-11-16 07:46:57,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:46:57,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675563117] [2024-11-16 07:46:57,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:46:57,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:46:58,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:58,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:46:58,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:58,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:46:58,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:58,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:46:58,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:58,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:46:58,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:58,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 07:46:58,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:58,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 07:46:58,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:58,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 07:46:58,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:58,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 07:46:58,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:58,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 07:46:58,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:58,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 07:46:58,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:58,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 07:46:58,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:58,180 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-16 07:46:58,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:46:58,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675563117] [2024-11-16 07:46:58,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675563117] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:46:58,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:46:58,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 07:46:58,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237660769] [2024-11-16 07:46:58,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:46:58,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 07:46:58,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:46:58,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 07:46:58,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-16 07:46:58,182 INFO L87 Difference]: Start difference. First operand 402 states and 606 transitions. Second operand has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-16 07:46:59,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:46:59,733 INFO L93 Difference]: Finished difference Result 963 states and 1467 transitions. [2024-11-16 07:46:59,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-16 07:46:59,734 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 108 [2024-11-16 07:46:59,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:46:59,739 INFO L225 Difference]: With dead ends: 963 [2024-11-16 07:46:59,739 INFO L226 Difference]: Without dead ends: 588 [2024-11-16 07:46:59,742 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2024-11-16 07:46:59,744 INFO L432 NwaCegarLoop]: 192 mSDtfsCounter, 1030 mSDsluCounter, 1059 mSDsCounter, 0 mSdLazyCounter, 2630 mSolverCounterSat, 290 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1031 SdHoareTripleChecker+Valid, 1251 SdHoareTripleChecker+Invalid, 2920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 290 IncrementalHoareTripleChecker+Valid, 2630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-16 07:46:59,744 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1031 Valid, 1251 Invalid, 2920 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [290 Valid, 2630 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-16 07:46:59,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2024-11-16 07:46:59,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 402. [2024-11-16 07:46:59,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 323 states have (on average 1.4891640866873066) internal successors, (481), 328 states have internal predecessors, (481), 57 states have call successors, (57), 17 states have call predecessors, (57), 21 states have return successors, (68), 56 states have call predecessors, (68), 56 states have call successors, (68) [2024-11-16 07:46:59,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 606 transitions. [2024-11-16 07:46:59,768 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 606 transitions. Word has length 108 [2024-11-16 07:46:59,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:46:59,769 INFO L471 AbstractCegarLoop]: Abstraction has 402 states and 606 transitions. [2024-11-16 07:46:59,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-16 07:46:59,769 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 606 transitions. [2024-11-16 07:46:59,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-16 07:46:59,770 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:46:59,771 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] [2024-11-16 07:46:59,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 07:46:59,771 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:46:59,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:46:59,772 INFO L85 PathProgramCache]: Analyzing trace with hash 2047075422, now seen corresponding path program 1 times [2024-11-16 07:46:59,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:46:59,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763995939] [2024-11-16 07:46:59,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:46:59,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:46:59,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:59,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:46:59,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:59,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:46:59,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:59,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:46:59,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:59,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:46:59,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:59,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 07:46:59,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:59,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 07:46:59,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:59,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 07:46:59,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:59,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 07:46:59,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:59,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 07:46:59,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:59,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 07:46:59,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:59,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 07:46:59,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:59,975 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-16 07:46:59,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:46:59,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763995939] [2024-11-16 07:46:59,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763995939] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 07:46:59,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1714584889] [2024-11-16 07:46:59,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:46:59,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:46:59,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:46:59,977 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 07:46:59,982 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-16 07:47:00,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:00,191 INFO L255 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-16 07:47:00,193 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 07:47:00,229 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-16 07:47:00,231 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 07:47:00,319 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-16 07:47:00,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1714584889] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 07:47:00,320 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 07:47:00,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2024-11-16 07:47:00,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462577048] [2024-11-16 07:47:00,320 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 07:47:00,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-16 07:47:00,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:47:00,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-16 07:47:00,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-11-16 07:47:00,322 INFO L87 Difference]: Start difference. First operand 402 states and 606 transitions. Second operand has 15 states, 14 states have (on average 9.214285714285714) internal successors, (129), 11 states have internal predecessors, (129), 4 states have call successors, (27), 6 states have call predecessors, (27), 3 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-16 07:47:02,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:47:02,571 INFO L93 Difference]: Finished difference Result 1391 states and 2190 transitions. [2024-11-16 07:47:02,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-16 07:47:02,572 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 9.214285714285714) internal successors, (129), 11 states have internal predecessors, (129), 4 states have call successors, (27), 6 states have call predecessors, (27), 3 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) Word has length 108 [2024-11-16 07:47:02,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:47:02,576 INFO L225 Difference]: With dead ends: 1391 [2024-11-16 07:47:02,576 INFO L226 Difference]: Without dead ends: 1022 [2024-11-16 07:47:02,578 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=164, Invalid=828, Unknown=0, NotChecked=0, Total=992 [2024-11-16 07:47:02,579 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 2281 mSDsluCounter, 1823 mSDsCounter, 0 mSdLazyCounter, 4795 mSolverCounterSat, 606 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2298 SdHoareTripleChecker+Valid, 2012 SdHoareTripleChecker+Invalid, 5401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 606 IncrementalHoareTripleChecker+Valid, 4795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-16 07:47:02,579 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2298 Valid, 2012 Invalid, 5401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [606 Valid, 4795 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-16 07:47:02,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1022 states. [2024-11-16 07:47:02,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1022 to 812. [2024-11-16 07:47:02,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 812 states, 669 states have (on average 1.508221225710015) internal successors, (1009), 674 states have internal predecessors, (1009), 121 states have call successors, (121), 17 states have call predecessors, (121), 21 states have return successors, (142), 120 states have call predecessors, (142), 120 states have call successors, (142) [2024-11-16 07:47:02,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 812 states to 812 states and 1272 transitions. [2024-11-16 07:47:02,609 INFO L78 Accepts]: Start accepts. Automaton has 812 states and 1272 transitions. Word has length 108 [2024-11-16 07:47:02,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:47:02,610 INFO L471 AbstractCegarLoop]: Abstraction has 812 states and 1272 transitions. [2024-11-16 07:47:02,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 9.214285714285714) internal successors, (129), 11 states have internal predecessors, (129), 4 states have call successors, (27), 6 states have call predecessors, (27), 3 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-16 07:47:02,610 INFO L276 IsEmpty]: Start isEmpty. Operand 812 states and 1272 transitions. [2024-11-16 07:47:02,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-16 07:47:02,612 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:47:02,612 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:47:02,626 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-16 07:47:02,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:47:02,813 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:47:02,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:47:02,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1199439201, now seen corresponding path program 1 times [2024-11-16 07:47:02,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:47:02,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510755004] [2024-11-16 07:47:02,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:47:02,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:47:02,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:02,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:47:02,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:02,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:47:02,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:02,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:47:02,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:02,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:47:02,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:02,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 07:47:02,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:02,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 07:47:02,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:02,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 07:47:02,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:02,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 07:47:02,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:02,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-16 07:47:02,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:02,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-16 07:47:02,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:02,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-16 07:47:02,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:02,916 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-16 07:47:02,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:47:02,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510755004] [2024-11-16 07:47:02,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510755004] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:47:02,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:47:02,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 07:47:02,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175129344] [2024-11-16 07:47:02,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:47:02,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 07:47:02,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:47:02,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 07:47:02,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 07:47:02,918 INFO L87 Difference]: Start difference. First operand 812 states and 1272 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-16 07:47:03,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:47:03,961 INFO L93 Difference]: Finished difference Result 2120 states and 3383 transitions. [2024-11-16 07:47:03,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 07:47:03,961 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 118 [2024-11-16 07:47:03,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:47:03,967 INFO L225 Difference]: With dead ends: 2120 [2024-11-16 07:47:03,967 INFO L226 Difference]: Without dead ends: 1390 [2024-11-16 07:47:03,970 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-16 07:47:03,971 INFO L432 NwaCegarLoop]: 212 mSDtfsCounter, 1148 mSDsluCounter, 750 mSDsCounter, 0 mSdLazyCounter, 1538 mSolverCounterSat, 346 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1163 SdHoareTripleChecker+Valid, 962 SdHoareTripleChecker+Invalid, 1884 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 346 IncrementalHoareTripleChecker+Valid, 1538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 07:47:03,971 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1163 Valid, 962 Invalid, 1884 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [346 Valid, 1538 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 07:47:03,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1390 states. [2024-11-16 07:47:04,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1390 to 1196. [2024-11-16 07:47:04,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1196 states, 989 states have (on average 1.5096056622851366) internal successors, (1493), 994 states have internal predecessors, (1493), 185 states have call successors, (185), 17 states have call predecessors, (185), 21 states have return successors, (216), 184 states have call predecessors, (216), 184 states have call successors, (216) [2024-11-16 07:47:04,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1196 states to 1196 states and 1894 transitions. [2024-11-16 07:47:04,033 INFO L78 Accepts]: Start accepts. Automaton has 1196 states and 1894 transitions. Word has length 118 [2024-11-16 07:47:04,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:47:04,034 INFO L471 AbstractCegarLoop]: Abstraction has 1196 states and 1894 transitions. [2024-11-16 07:47:04,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-16 07:47:04,034 INFO L276 IsEmpty]: Start isEmpty. Operand 1196 states and 1894 transitions. [2024-11-16 07:47:04,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-16 07:47:04,037 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:47:04,037 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:47:04,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 07:47:04,038 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:47:04,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:47:04,038 INFO L85 PathProgramCache]: Analyzing trace with hash -1683942312, now seen corresponding path program 1 times [2024-11-16 07:47:04,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:47:04,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310200994] [2024-11-16 07:47:04,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:47:04,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:47:04,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:04,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:47:04,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:04,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:47:04,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:04,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:47:04,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:04,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:47:04,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:04,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 07:47:04,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:04,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 07:47:04,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:04,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-16 07:47:04,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:04,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 07:47:04,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:04,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 07:47:04,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:04,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 07:47:04,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:04,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 07:47:04,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:04,131 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-16 07:47:04,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:47:04,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310200994] [2024-11-16 07:47:04,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310200994] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:47:04,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:47:04,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 07:47:04,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86273161] [2024-11-16 07:47:04,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:47:04,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 07:47:04,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:47:04,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 07:47:04,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 07:47:04,133 INFO L87 Difference]: Start difference. First operand 1196 states and 1894 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-16 07:47:05,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:47:05,230 INFO L93 Difference]: Finished difference Result 3072 states and 4914 transitions. [2024-11-16 07:47:05,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 07:47:05,233 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 119 [2024-11-16 07:47:05,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:47:05,240 INFO L225 Difference]: With dead ends: 3072 [2024-11-16 07:47:05,240 INFO L226 Difference]: Without dead ends: 2019 [2024-11-16 07:47:05,243 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-16 07:47:05,244 INFO L432 NwaCegarLoop]: 199 mSDtfsCounter, 1145 mSDsluCounter, 727 mSDsCounter, 0 mSdLazyCounter, 1514 mSolverCounterSat, 346 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1160 SdHoareTripleChecker+Valid, 926 SdHoareTripleChecker+Invalid, 1860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 346 IncrementalHoareTripleChecker+Valid, 1514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 07:47:05,244 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1160 Valid, 926 Invalid, 1860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [346 Valid, 1514 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 07:47:05,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2019 states. [2024-11-16 07:47:05,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2019 to 1825. [2024-11-16 07:47:05,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1825 states, 1523 states have (on average 1.5068942875902824) internal successors, (2295), 1528 states have internal predecessors, (2295), 280 states have call successors, (280), 17 states have call predecessors, (280), 21 states have return successors, (311), 279 states have call predecessors, (311), 279 states have call successors, (311) [2024-11-16 07:47:05,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1825 states to 1825 states and 2886 transitions. [2024-11-16 07:47:05,300 INFO L78 Accepts]: Start accepts. Automaton has 1825 states and 2886 transitions. Word has length 119 [2024-11-16 07:47:05,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:47:05,301 INFO L471 AbstractCegarLoop]: Abstraction has 1825 states and 2886 transitions. [2024-11-16 07:47:05,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-16 07:47:05,301 INFO L276 IsEmpty]: Start isEmpty. Operand 1825 states and 2886 transitions. [2024-11-16 07:47:05,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-16 07:47:05,305 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:47:05,305 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:47:05,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 07:47:05,306 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:47:05,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:47:05,306 INFO L85 PathProgramCache]: Analyzing trace with hash -1430744255, now seen corresponding path program 1 times [2024-11-16 07:47:05,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:47:05,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048567931] [2024-11-16 07:47:05,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:47:05,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:47:05,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:05,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:47:05,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:05,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:47:05,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:05,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:47:05,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:05,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:47:05,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:05,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 07:47:05,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:05,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 07:47:05,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:05,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-16 07:47:05,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:05,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 07:47:05,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:05,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 07:47:05,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:05,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-16 07:47:05,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:05,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 07:47:05,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:05,385 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-16 07:47:05,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:47:05,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048567931] [2024-11-16 07:47:05,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048567931] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:47:05,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:47:05,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 07:47:05,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272786411] [2024-11-16 07:47:05,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:47:05,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 07:47:05,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:47:05,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 07:47:05,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 07:47:05,387 INFO L87 Difference]: Start difference. First operand 1825 states and 2886 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-16 07:47:06,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:47:06,484 INFO L93 Difference]: Finished difference Result 4514 states and 7235 transitions. [2024-11-16 07:47:06,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 07:47:06,485 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 120 [2024-11-16 07:47:06,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:47:06,496 INFO L225 Difference]: With dead ends: 4514 [2024-11-16 07:47:06,496 INFO L226 Difference]: Without dead ends: 2985 [2024-11-16 07:47:06,500 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-16 07:47:06,501 INFO L432 NwaCegarLoop]: 198 mSDtfsCounter, 1142 mSDsluCounter, 722 mSDsCounter, 0 mSdLazyCounter, 1511 mSolverCounterSat, 338 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1157 SdHoareTripleChecker+Valid, 920 SdHoareTripleChecker+Invalid, 1849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 338 IncrementalHoareTripleChecker+Valid, 1511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 07:47:06,501 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1157 Valid, 920 Invalid, 1849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [338 Valid, 1511 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 07:47:06,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2985 states. [2024-11-16 07:47:06,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2985 to 2791. [2024-11-16 07:47:06,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2791 states, 2366 states have (on average 1.5042265426880812) internal successors, (3559), 2371 states have internal predecessors, (3559), 403 states have call successors, (403), 17 states have call predecessors, (403), 21 states have return successors, (450), 402 states have call predecessors, (450), 402 states have call successors, (450) [2024-11-16 07:47:06,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2791 states to 2791 states and 4412 transitions. [2024-11-16 07:47:06,579 INFO L78 Accepts]: Start accepts. Automaton has 2791 states and 4412 transitions. Word has length 120 [2024-11-16 07:47:06,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:47:06,579 INFO L471 AbstractCegarLoop]: Abstraction has 2791 states and 4412 transitions. [2024-11-16 07:47:06,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-16 07:47:06,579 INFO L276 IsEmpty]: Start isEmpty. Operand 2791 states and 4412 transitions. [2024-11-16 07:47:06,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-16 07:47:06,585 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:47:06,585 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:47:06,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 07:47:06,585 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:47:06,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:47:06,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1833454616, now seen corresponding path program 1 times [2024-11-16 07:47:06,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:47:06,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690716105] [2024-11-16 07:47:06,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:47:06,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:47:06,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:06,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:47:06,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:06,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:47:06,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:06,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:47:06,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:06,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:47:06,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:06,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 07:47:06,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:06,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 07:47:06,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:06,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-16 07:47:06,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:06,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-16 07:47:06,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:06,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-16 07:47:06,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:06,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-16 07:47:06,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:06,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-16 07:47:06,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:06,663 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-16 07:47:06,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:47:06,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690716105] [2024-11-16 07:47:06,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690716105] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:47:06,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:47:06,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 07:47:06,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598463874] [2024-11-16 07:47:06,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:47:06,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 07:47:06,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:47:06,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 07:47:06,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 07:47:06,664 INFO L87 Difference]: Start difference. First operand 2791 states and 4412 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-16 07:47:07,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:47:07,816 INFO L93 Difference]: Finished difference Result 6786 states and 10883 transitions. [2024-11-16 07:47:07,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 07:47:07,817 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 121 [2024-11-16 07:47:07,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:47:07,834 INFO L225 Difference]: With dead ends: 6786 [2024-11-16 07:47:07,835 INFO L226 Difference]: Without dead ends: 4543 [2024-11-16 07:47:07,841 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-16 07:47:07,841 INFO L432 NwaCegarLoop]: 198 mSDtfsCounter, 1139 mSDsluCounter, 722 mSDsCounter, 0 mSdLazyCounter, 1506 mSolverCounterSat, 338 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1154 SdHoareTripleChecker+Valid, 920 SdHoareTripleChecker+Invalid, 1844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 338 IncrementalHoareTripleChecker+Valid, 1506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 07:47:07,842 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1154 Valid, 920 Invalid, 1844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [338 Valid, 1506 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 07:47:07,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4543 states. [2024-11-16 07:47:07,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4543 to 4349. [2024-11-16 07:47:07,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4349 states, 3745 states have (on average 1.5009345794392523) internal successors, (5621), 3750 states have internal predecessors, (5621), 582 states have call successors, (582), 17 states have call predecessors, (582), 21 states have return successors, (655), 581 states have call predecessors, (655), 581 states have call successors, (655) [2024-11-16 07:47:07,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4349 states to 4349 states and 6858 transitions. [2024-11-16 07:47:07,992 INFO L78 Accepts]: Start accepts. Automaton has 4349 states and 6858 transitions. Word has length 121 [2024-11-16 07:47:07,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:47:07,992 INFO L471 AbstractCegarLoop]: Abstraction has 4349 states and 6858 transitions. [2024-11-16 07:47:07,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-16 07:47:07,993 INFO L276 IsEmpty]: Start isEmpty. Operand 4349 states and 6858 transitions. [2024-11-16 07:47:07,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-16 07:47:07,998 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:47:07,999 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:47:07,999 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 07:47:07,999 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:47:07,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:47:07,999 INFO L85 PathProgramCache]: Analyzing trace with hash 647418049, now seen corresponding path program 1 times [2024-11-16 07:47:07,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:47:07,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355819237] [2024-11-16 07:47:07,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:47:08,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:47:08,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:08,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:47:08,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:08,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:47:08,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:08,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:47:08,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:08,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:47:08,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:08,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 07:47:08,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:08,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 07:47:08,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:08,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-16 07:47:08,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:08,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 07:47:08,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:08,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-16 07:47:08,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:08,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-16 07:47:08,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:08,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 07:47:08,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:08,081 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-16 07:47:08,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:47:08,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355819237] [2024-11-16 07:47:08,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355819237] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:47:08,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:47:08,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 07:47:08,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481661864] [2024-11-16 07:47:08,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:47:08,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 07:47:08,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:47:08,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 07:47:08,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 07:47:08,084 INFO L87 Difference]: Start difference. First operand 4349 states and 6858 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-16 07:47:09,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:47:09,288 INFO L93 Difference]: Finished difference Result 10561 states and 16919 transitions. [2024-11-16 07:47:09,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 07:47:09,288 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 122 [2024-11-16 07:47:09,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:47:09,316 INFO L225 Difference]: With dead ends: 10561 [2024-11-16 07:47:09,316 INFO L226 Difference]: Without dead ends: 7145 [2024-11-16 07:47:09,324 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-16 07:47:09,325 INFO L432 NwaCegarLoop]: 207 mSDtfsCounter, 1136 mSDsluCounter, 738 mSDsCounter, 0 mSdLazyCounter, 1523 mSolverCounterSat, 342 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1151 SdHoareTripleChecker+Valid, 945 SdHoareTripleChecker+Invalid, 1865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 342 IncrementalHoareTripleChecker+Valid, 1523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 07:47:09,325 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1151 Valid, 945 Invalid, 1865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [342 Valid, 1523 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 07:47:09,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7145 states. [2024-11-16 07:47:09,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7145 to 6951. [2024-11-16 07:47:09,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6951 states, 5971 states have (on average 1.4885278847764194) internal successors, (8888), 5976 states have internal predecessors, (8888), 958 states have call successors, (958), 17 states have call predecessors, (958), 21 states have return successors, (1075), 957 states have call predecessors, (1075), 957 states have call successors, (1075) [2024-11-16 07:47:09,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6951 states to 6951 states and 10921 transitions. [2024-11-16 07:47:09,566 INFO L78 Accepts]: Start accepts. Automaton has 6951 states and 10921 transitions. Word has length 122 [2024-11-16 07:47:09,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:47:09,566 INFO L471 AbstractCegarLoop]: Abstraction has 6951 states and 10921 transitions. [2024-11-16 07:47:09,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-16 07:47:09,567 INFO L276 IsEmpty]: Start isEmpty. Operand 6951 states and 10921 transitions. [2024-11-16 07:47:09,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-16 07:47:09,575 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:47:09,575 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:47:09,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 07:47:09,576 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:47:09,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:47:09,576 INFO L85 PathProgramCache]: Analyzing trace with hash 220797784, now seen corresponding path program 1 times [2024-11-16 07:47:09,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:47:09,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283868308] [2024-11-16 07:47:09,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:47:09,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:47:09,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:09,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:47:09,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:09,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:47:09,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:09,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:47:09,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:09,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:47:09,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:09,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 07:47:09,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:09,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 07:47:09,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:09,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 07:47:09,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:09,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 07:47:09,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:09,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-16 07:47:09,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:09,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-16 07:47:09,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:09,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-16 07:47:09,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:09,677 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-16 07:47:09,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:47:09,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283868308] [2024-11-16 07:47:09,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283868308] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:47:09,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:47:09,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 07:47:09,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340002121] [2024-11-16 07:47:09,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:47:09,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 07:47:09,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:47:09,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 07:47:09,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 07:47:09,683 INFO L87 Difference]: Start difference. First operand 6951 states and 10921 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-16 07:47:10,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:47:10,868 INFO L93 Difference]: Finished difference Result 17397 states and 27751 transitions. [2024-11-16 07:47:10,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 07:47:10,869 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 123 [2024-11-16 07:47:10,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:47:10,917 INFO L225 Difference]: With dead ends: 17397 [2024-11-16 07:47:10,918 INFO L226 Difference]: Without dead ends: 11859 [2024-11-16 07:47:10,932 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-16 07:47:10,933 INFO L432 NwaCegarLoop]: 200 mSDtfsCounter, 1133 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 1523 mSolverCounterSat, 346 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1148 SdHoareTripleChecker+Valid, 923 SdHoareTripleChecker+Invalid, 1869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 346 IncrementalHoareTripleChecker+Valid, 1523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 07:47:10,933 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1148 Valid, 923 Invalid, 1869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [346 Valid, 1523 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 07:47:10,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11859 states. [2024-11-16 07:47:11,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11859 to 11665. [2024-11-16 07:47:11,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11665 states, 10079 states have (on average 1.482587558289513) internal successors, (14943), 10084 states have internal predecessors, (14943), 1564 states have call successors, (1564), 17 states have call predecessors, (1564), 21 states have return successors, (1759), 1563 states have call predecessors, (1759), 1563 states have call successors, (1759) [2024-11-16 07:47:11,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11665 states to 11665 states and 18266 transitions. [2024-11-16 07:47:11,301 INFO L78 Accepts]: Start accepts. Automaton has 11665 states and 18266 transitions. Word has length 123 [2024-11-16 07:47:11,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:47:11,302 INFO L471 AbstractCegarLoop]: Abstraction has 11665 states and 18266 transitions. [2024-11-16 07:47:11,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-16 07:47:11,302 INFO L276 IsEmpty]: Start isEmpty. Operand 11665 states and 18266 transitions. [2024-11-16 07:47:11,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-16 07:47:11,313 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:47:11,313 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:47:11,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 07:47:11,314 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:47:11,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:47:11,314 INFO L85 PathProgramCache]: Analyzing trace with hash 816370337, now seen corresponding path program 1 times [2024-11-16 07:47:11,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:47:11,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997740983] [2024-11-16 07:47:11,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:47:11,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:47:11,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:11,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:47:11,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:11,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:47:11,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:11,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:47:11,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:11,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:47:11,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:11,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 07:47:11,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:11,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 07:47:11,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:11,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 07:47:11,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:11,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 07:47:11,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:11,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-16 07:47:11,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:11,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-16 07:47:11,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:11,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-16 07:47:11,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:11,395 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-16 07:47:11,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:47:11,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997740983] [2024-11-16 07:47:11,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997740983] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:47:11,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:47:11,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 07:47:11,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499404570] [2024-11-16 07:47:11,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:47:11,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 07:47:11,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:47:11,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 07:47:11,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 07:47:11,396 INFO L87 Difference]: Start difference. First operand 11665 states and 18266 transitions. Second operand has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-16 07:47:12,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:47:12,762 INFO L93 Difference]: Finished difference Result 30399 states and 48325 transitions. [2024-11-16 07:47:12,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 07:47:12,762 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 124 [2024-11-16 07:47:12,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:47:12,826 INFO L225 Difference]: With dead ends: 30399 [2024-11-16 07:47:12,826 INFO L226 Difference]: Without dead ends: 20737 [2024-11-16 07:47:12,850 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-16 07:47:12,851 INFO L432 NwaCegarLoop]: 215 mSDtfsCounter, 1130 mSDsluCounter, 761 mSDsCounter, 0 mSdLazyCounter, 1543 mSolverCounterSat, 346 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1145 SdHoareTripleChecker+Valid, 976 SdHoareTripleChecker+Invalid, 1889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 346 IncrementalHoareTripleChecker+Valid, 1543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 07:47:12,851 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1145 Valid, 976 Invalid, 1889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [346 Valid, 1543 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 07:47:12,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20737 states. [2024-11-16 07:47:13,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20737 to 20543. [2024-11-16 07:47:13,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20543 states, 17754 states have (on average 1.47313281514025) internal successors, (26154), 17759 states have internal predecessors, (26154), 2767 states have call successors, (2767), 17 states have call predecessors, (2767), 21 states have return successors, (3106), 2766 states have call predecessors, (3106), 2766 states have call successors, (3106) [2024-11-16 07:47:13,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20543 states to 20543 states and 32027 transitions. [2024-11-16 07:47:13,546 INFO L78 Accepts]: Start accepts. Automaton has 20543 states and 32027 transitions. Word has length 124 [2024-11-16 07:47:13,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:47:13,547 INFO L471 AbstractCegarLoop]: Abstraction has 20543 states and 32027 transitions. [2024-11-16 07:47:13,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-16 07:47:13,547 INFO L276 IsEmpty]: Start isEmpty. Operand 20543 states and 32027 transitions. [2024-11-16 07:47:13,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-16 07:47:13,557 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:47:13,558 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:47:13,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 07:47:13,558 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:47:13,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:47:13,558 INFO L85 PathProgramCache]: Analyzing trace with hash -925409320, now seen corresponding path program 1 times [2024-11-16 07:47:13,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:47:13,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000514471] [2024-11-16 07:47:13,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:47:13,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:47:13,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:13,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:47:13,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:13,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:47:13,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:13,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:47:13,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:13,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:47:13,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:13,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 07:47:13,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:13,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 07:47:13,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:13,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 07:47:13,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:13,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 07:47:13,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:13,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 07:47:13,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:13,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 07:47:13,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:13,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 07:47:13,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:13,641 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-16 07:47:13,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:47:13,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000514471] [2024-11-16 07:47:13,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000514471] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:47:13,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:47:13,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 07:47:13,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126182297] [2024-11-16 07:47:13,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:47:13,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 07:47:13,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:47:13,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 07:47:13,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 07:47:13,644 INFO L87 Difference]: Start difference. First operand 20543 states and 32027 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-16 07:47:15,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:47:15,196 INFO L93 Difference]: Finished difference Result 54797 states and 86760 transitions. [2024-11-16 07:47:15,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 07:47:15,196 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 125 [2024-11-16 07:47:15,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:47:15,287 INFO L225 Difference]: With dead ends: 54797 [2024-11-16 07:47:15,287 INFO L226 Difference]: Without dead ends: 37077 [2024-11-16 07:47:15,316 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-16 07:47:15,316 INFO L432 NwaCegarLoop]: 198 mSDtfsCounter, 1127 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 1519 mSolverCounterSat, 346 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1142 SdHoareTripleChecker+Valid, 921 SdHoareTripleChecker+Invalid, 1865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 346 IncrementalHoareTripleChecker+Valid, 1519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 07:47:15,317 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1142 Valid, 921 Invalid, 1865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [346 Valid, 1519 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 07:47:15,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37077 states. [2024-11-16 07:47:16,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37077 to 36883. [2024-11-16 07:47:16,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36883 states, 32055 states have (on average 1.466760255810326) internal successors, (47017), 32060 states have internal predecessors, (47017), 4806 states have call successors, (4806), 17 states have call predecessors, (4806), 21 states have return successors, (5419), 4805 states have call predecessors, (5419), 4805 states have call successors, (5419) [2024-11-16 07:47:16,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36883 states to 36883 states and 57242 transitions. [2024-11-16 07:47:16,603 INFO L78 Accepts]: Start accepts. Automaton has 36883 states and 57242 transitions. Word has length 125 [2024-11-16 07:47:16,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:47:16,604 INFO L471 AbstractCegarLoop]: Abstraction has 36883 states and 57242 transitions. [2024-11-16 07:47:16,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-16 07:47:16,604 INFO L276 IsEmpty]: Start isEmpty. Operand 36883 states and 57242 transitions. [2024-11-16 07:47:16,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-16 07:47:16,617 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:47:16,617 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:47:16,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 07:47:16,819 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:47:16,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:47:16,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1484158113, now seen corresponding path program 1 times [2024-11-16 07:47:16,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:47:16,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569187090] [2024-11-16 07:47:16,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:47:16,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:47:16,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:16,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:47:16,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:16,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:47:16,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:16,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:47:16,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:16,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:47:16,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:16,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 07:47:16,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:16,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 07:47:16,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:16,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-16 07:47:16,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:16,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-16 07:47:16,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:16,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-16 07:47:16,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:16,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 07:47:16,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:16,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-16 07:47:16,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:16,923 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-16 07:47:16,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:47:16,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569187090] [2024-11-16 07:47:16,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569187090] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:47:16,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:47:16,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 07:47:16,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017374955] [2024-11-16 07:47:16,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:47:16,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 07:47:16,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:47:16,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 07:47:16,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 07:47:16,925 INFO L87 Difference]: Start difference. First operand 36883 states and 57242 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-16 07:47:19,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:47:19,194 INFO L93 Difference]: Finished difference Result 101196 states and 158946 transitions. [2024-11-16 07:47:19,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 07:47:19,194 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 126 [2024-11-16 07:47:19,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:47:19,383 INFO L225 Difference]: With dead ends: 101196 [2024-11-16 07:47:19,383 INFO L226 Difference]: Without dead ends: 68131 [2024-11-16 07:47:19,445 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-16 07:47:19,446 INFO L432 NwaCegarLoop]: 199 mSDtfsCounter, 1124 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 1511 mSolverCounterSat, 346 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1139 SdHoareTripleChecker+Valid, 930 SdHoareTripleChecker+Invalid, 1857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 346 IncrementalHoareTripleChecker+Valid, 1511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 07:47:19,447 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1139 Valid, 930 Invalid, 1857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [346 Valid, 1511 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 07:47:19,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68131 states. [2024-11-16 07:47:21,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68131 to 67937. [2024-11-16 07:47:21,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67937 states, 59394 states have (on average 1.4596255514024985) internal successors, (86693), 59399 states have internal predecessors, (86693), 8521 states have call successors, (8521), 17 states have call predecessors, (8521), 21 states have return successors, (9666), 8520 states have call predecessors, (9666), 8520 states have call successors, (9666) [2024-11-16 07:47:21,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67937 states to 67937 states and 104880 transitions. [2024-11-16 07:47:21,830 INFO L78 Accepts]: Start accepts. Automaton has 67937 states and 104880 transitions. Word has length 126 [2024-11-16 07:47:21,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:47:21,830 INFO L471 AbstractCegarLoop]: Abstraction has 67937 states and 104880 transitions. [2024-11-16 07:47:21,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-16 07:47:21,831 INFO L276 IsEmpty]: Start isEmpty. Operand 67937 states and 104880 transitions. [2024-11-16 07:47:21,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-16 07:47:21,844 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:47:21,844 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:47:21,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-16 07:47:21,845 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:47:21,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:47:21,845 INFO L85 PathProgramCache]: Analyzing trace with hash -107499528, now seen corresponding path program 1 times [2024-11-16 07:47:21,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:47:21,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781480738] [2024-11-16 07:47:21,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:47:21,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:47:21,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:21,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:47:21,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:21,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:47:21,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:21,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:47:21,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:21,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:47:21,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:21,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 07:47:21,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:21,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 07:47:21,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:21,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 07:47:21,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:21,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-16 07:47:21,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:21,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-16 07:47:21,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:21,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-16 07:47:21,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:21,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-16 07:47:21,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:21,932 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-16 07:47:21,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:47:21,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781480738] [2024-11-16 07:47:21,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781480738] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:47:21,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:47:21,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 07:47:21,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219039656] [2024-11-16 07:47:21,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:47:21,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 07:47:21,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:47:21,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 07:47:21,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 07:47:21,933 INFO L87 Difference]: Start difference. First operand 67937 states and 104880 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-16 07:47:25,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:47:25,298 INFO L93 Difference]: Finished difference Result 127864 states and 200544 transitions. [2024-11-16 07:47:25,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 07:47:25,299 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 127 [2024-11-16 07:47:25,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:47:25,720 INFO L225 Difference]: With dead ends: 127864 [2024-11-16 07:47:25,721 INFO L226 Difference]: Without dead ends: 127708 [2024-11-16 07:47:25,775 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-16 07:47:25,775 INFO L432 NwaCegarLoop]: 198 mSDtfsCounter, 1118 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 1511 mSolverCounterSat, 341 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1132 SdHoareTripleChecker+Valid, 928 SdHoareTripleChecker+Invalid, 1852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 341 IncrementalHoareTripleChecker+Valid, 1511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 07:47:25,776 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1132 Valid, 928 Invalid, 1852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [341 Valid, 1511 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 07:47:25,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127708 states. [2024-11-16 07:47:29,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127708 to 127514. [2024-11-16 07:47:29,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127514 states, 112172 states have (on average 1.4515832828156758) internal successors, (162827), 112177 states have internal predecessors, (162827), 15320 states have call successors, (15320), 17 states have call predecessors, (15320), 21 states have return successors, (17511), 15319 states have call predecessors, (17511), 15319 states have call successors, (17511) [2024-11-16 07:47:30,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127514 states to 127514 states and 195658 transitions. [2024-11-16 07:47:30,367 INFO L78 Accepts]: Start accepts. Automaton has 127514 states and 195658 transitions. Word has length 127 [2024-11-16 07:47:30,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:47:30,367 INFO L471 AbstractCegarLoop]: Abstraction has 127514 states and 195658 transitions. [2024-11-16 07:47:30,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-16 07:47:30,368 INFO L276 IsEmpty]: Start isEmpty. Operand 127514 states and 195658 transitions. [2024-11-16 07:47:30,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-16 07:47:30,382 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:47:30,382 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:47:30,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-16 07:47:30,383 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:47:30,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:47:30,383 INFO L85 PathProgramCache]: Analyzing trace with hash 963076769, now seen corresponding path program 1 times [2024-11-16 07:47:30,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:47:30,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512475441] [2024-11-16 07:47:30,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:47:30,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:47:30,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:30,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:47:30,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:30,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:47:30,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:30,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:47:30,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:30,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:47:30,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:30,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 07:47:30,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:30,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 07:47:30,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:30,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 07:47:30,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:30,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 07:47:30,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:30,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-16 07:47:30,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:30,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 07:47:30,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:30,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-16 07:47:30,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:47:30,557 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-16 07:47:30,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:47:30,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512475441] [2024-11-16 07:47:30,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512475441] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:47:30,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:47:30,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 07:47:30,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598981643] [2024-11-16 07:47:30,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:47:30,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 07:47:30,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:47:30,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 07:47:30,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-16 07:47:30,559 INFO L87 Difference]: Start difference. First operand 127514 states and 195658 transitions. Second operand has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-16 07:47:33,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:47:33,919 INFO L93 Difference]: Finished difference Result 127697 states and 199219 transitions. [2024-11-16 07:47:33,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-16 07:47:33,920 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 128 [2024-11-16 07:47:33,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:47:33,944 INFO L225 Difference]: With dead ends: 127697 [2024-11-16 07:47:33,944 INFO L226 Difference]: Without dead ends: 0 [2024-11-16 07:47:34,077 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=109, Invalid=271, Unknown=0, NotChecked=0, Total=380 [2024-11-16 07:47:34,078 INFO L432 NwaCegarLoop]: 197 mSDtfsCounter, 1015 mSDsluCounter, 1063 mSDsCounter, 0 mSdLazyCounter, 2592 mSolverCounterSat, 282 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1015 SdHoareTripleChecker+Valid, 1260 SdHoareTripleChecker+Invalid, 2874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 282 IncrementalHoareTripleChecker+Valid, 2592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 07:47:34,078 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1015 Valid, 1260 Invalid, 2874 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [282 Valid, 2592 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 07:47:34,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-16 07:47:34,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-16 07:47:34,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 07:47:34,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-16 07:47:34,103 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 128 [2024-11-16 07:47:34,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:47:34,103 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-16 07:47:34,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-16 07:47:34,103 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-16 07:47:34,103 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-16 07:47:34,106 INFO L782 garLoopResultBuilder]: Registering result SAFE for location outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-16 07:47:34,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-16 07:47:34,108 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:47:34,110 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.