./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-pthread/cs_fib-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-pthread/cs_fib-2.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 2f188ac4b0bdfe335e0fcb7c5645493965a99a7b8a1d7a552e9d512c30775fb8 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 03:57:41,031 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 03:57:41,087 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 03:57:41,090 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 03:57:41,091 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 03:57:41,119 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 03:57:41,120 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 03:57:41,120 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 03:57:41,120 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 03:57:41,121 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 03:57:41,121 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 03:57:41,121 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 03:57:41,122 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 03:57:41,122 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 03:57:41,122 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 03:57:41,122 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 03:57:41,123 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 03:57:41,123 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 03:57:41,123 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 03:57:41,123 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 03:57:41,124 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 03:57:41,127 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 03:57:41,128 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 03:57:41,128 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 03:57:41,128 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 03:57:41,129 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 03:57:41,129 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 03:57:41,129 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 03:57:41,129 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 03:57:41,130 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 03:57:41,130 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 03:57:41,130 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 03:57:41,130 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 03:57:41,131 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 03:57:41,131 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 03:57:41,131 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 03:57:41,154 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 03:57:41,154 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 03:57:41,154 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 03:57:41,154 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 03:57:41,154 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 03:57:41,163 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 03:57:41,163 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f188ac4b0bdfe335e0fcb7c5645493965a99a7b8a1d7a552e9d512c30775fb8 [2024-10-11 03:57:41,502 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 03:57:41,531 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 03:57:41,534 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 03:57:41,535 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 03:57:41,535 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 03:57:41,536 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-pthread/cs_fib-2.i [2024-10-11 03:57:42,958 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 03:57:43,231 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 03:57:43,231 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-pthread/cs_fib-2.i [2024-10-11 03:57:43,250 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/a5eb2061f/ec6c5a85f886410cad3deae01ebb1e63/FLAG3d41e9f99 [2024-10-11 03:57:43,548 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/a5eb2061f/ec6c5a85f886410cad3deae01ebb1e63 [2024-10-11 03:57:43,554 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 03:57:43,556 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 03:57:43,561 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 03:57:43,562 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 03:57:43,571 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 03:57:43,572 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:57:43" (1/1) ... [2024-10-11 03:57:43,576 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1684870d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:57:43, skipping insertion in model container [2024-10-11 03:57:43,576 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:57:43" (1/1) ... [2024-10-11 03:57:43,659 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 03:57:44,126 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-pthread/cs_fib-2.i[23457,23470] [2024-10-11 03:57:44,298 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 03:57:44,318 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 03:57:44,401 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-pthread/cs_fib-2.i[23457,23470] [2024-10-11 03:57:44,513 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 03:57:44,585 INFO L204 MainTranslator]: Completed translation [2024-10-11 03:57:44,586 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:57:44 WrapperNode [2024-10-11 03:57:44,586 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 03:57:44,587 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 03:57:44,588 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 03:57:44,588 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 03:57:44,599 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:57:44" (1/1) ... [2024-10-11 03:57:44,645 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:57:44" (1/1) ... [2024-10-11 03:57:44,694 INFO L138 Inliner]: procedures = 144, calls = 356, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 676 [2024-10-11 03:57:44,695 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 03:57:44,695 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 03:57:44,695 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 03:57:44,696 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 03:57:44,709 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:57:44" (1/1) ... [2024-10-11 03:57:44,710 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:57:44" (1/1) ... [2024-10-11 03:57:44,727 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:57:44" (1/1) ... [2024-10-11 03:57:44,777 INFO L175 MemorySlicer]: Split 225 memory accesses to 14 slices as follows [2, 31, 8, 8, 36, 31, 0, 22, 22, 10, 2, 11, 31, 11]. 16 percent of accesses are in the largest equivalence class. The 26 initializations are split as follows [2, 0, 3, 3, 0, 0, 0, 6, 6, 6, 0, 0, 0, 0]. The 63 writes are split as follows [0, 1, 2, 2, 21, 16, 0, 7, 7, 2, 2, 1, 1, 1]. [2024-10-11 03:57:44,777 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:57:44" (1/1) ... [2024-10-11 03:57:44,778 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:57:44" (1/1) ... [2024-10-11 03:57:44,813 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:57:44" (1/1) ... [2024-10-11 03:57:44,819 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:57:44" (1/1) ... [2024-10-11 03:57:44,828 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:57:44" (1/1) ... [2024-10-11 03:57:44,838 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:57:44" (1/1) ... [2024-10-11 03:57:44,854 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 03:57:44,855 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 03:57:44,855 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 03:57:44,855 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 03:57:44,856 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:57:44" (1/1) ... [2024-10-11 03:57:44,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 03:57:44,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:57:44,885 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 03:57:44,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 03:57:44,930 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-11 03:57:44,930 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-11 03:57:44,930 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-11 03:57:44,930 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-11 03:57:44,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-11 03:57:44,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-11 03:57:44,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-10-11 03:57:44,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-10-11 03:57:44,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-10-11 03:57:44,932 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-10-11 03:57:44,932 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-10-11 03:57:44,932 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-10-11 03:57:44,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-10-11 03:57:44,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-10-11 03:57:44,933 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-11 03:57:44,933 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-11 03:57:44,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-11 03:57:44,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-11 03:57:44,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-11 03:57:44,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-11 03:57:44,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-11 03:57:44,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-10-11 03:57:44,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-10-11 03:57:44,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-10-11 03:57:44,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-10-11 03:57:44,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-10-11 03:57:44,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-10-11 03:57:44,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-10-11 03:57:44,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-10-11 03:57:44,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-10-11 03:57:44,934 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-11 03:57:44,935 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-11 03:57:44,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 03:57:44,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-11 03:57:44,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-11 03:57:44,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-11 03:57:44,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-11 03:57:44,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-10-11 03:57:44,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-10-11 03:57:44,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-10-11 03:57:44,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-10-11 03:57:44,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-10-11 03:57:44,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-10-11 03:57:44,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-10-11 03:57:44,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-10-11 03:57:44,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-10-11 03:57:44,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-10-11 03:57:44,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-10-11 03:57:44,938 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2024-10-11 03:57:44,938 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2024-10-11 03:57:44,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-11 03:57:44,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-11 03:57:44,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-11 03:57:44,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-10-11 03:57:44,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-10-11 03:57:44,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-10-11 03:57:44,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-10-11 03:57:44,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-10-11 03:57:44,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-10-11 03:57:44,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-10-11 03:57:44,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-10-11 03:57:44,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-10-11 03:57:44,940 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-10-11 03:57:44,940 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-10-11 03:57:44,940 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2024-10-11 03:57:44,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2024-10-11 03:57:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-11 03:57:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2024-10-11 03:57:44,941 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2024-10-11 03:57:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 03:57:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-11 03:57:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-11 03:57:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-11 03:57:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-11 03:57:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-11 03:57:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-10-11 03:57:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-10-11 03:57:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-10-11 03:57:44,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-10-11 03:57:44,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-10-11 03:57:44,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-10-11 03:57:44,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-10-11 03:57:44,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-10-11 03:57:44,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 03:57:44,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 03:57:45,151 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 03:57:45,154 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 03:57:45,441 INFO L733 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);main_thread_#res#1.base, main_thread_#res#1.offset := 0, 0;call ULTIMATE.dealloc(main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset);havoc main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset);havoc main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset; [2024-10-11 03:57:45,441 INFO L733 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2024-10-11 03:57:45,441 INFO L733 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);main_thread_#res#1.base, main_thread_#res#1.offset := 0, 0;call ULTIMATE.dealloc(main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset);havoc main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset);havoc main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset; [2024-10-11 03:57:45,441 INFO L733 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2024-10-11 03:57:45,441 INFO L733 $ProcedureCfgBuilder]: dead code at ProgramPoint L749: SUMMARY for call __CS_cs(); srcloc: null [2024-10-11 03:57:45,441 INFO L733 $ProcedureCfgBuilder]: dead code at ProgramPoint L749-1: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);main_thread_#res#1.base, main_thread_#res#1.offset := 0, 0;call ULTIMATE.dealloc(main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset);havoc main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset);havoc main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset; [2024-10-11 03:57:45,442 INFO L733 $ProcedureCfgBuilder]: dead code at ProgramPoint L749-1: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2024-10-11 03:57:49,810 INFO L? ?]: Removed 73 outVars from TransFormulas that were not future-live. [2024-10-11 03:57:49,810 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 03:57:49,840 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 03:57:49,840 INFO L314 CfgBuilder]: Removed 4 assume(true) statements. [2024-10-11 03:57:49,840 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:57:49 BoogieIcfgContainer [2024-10-11 03:57:49,841 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 03:57:49,842 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 03:57:49,842 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 03:57:49,845 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 03:57:49,845 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 03:57:43" (1/3) ... [2024-10-11 03:57:49,845 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e990123 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:57:49, skipping insertion in model container [2024-10-11 03:57:49,845 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:57:44" (2/3) ... [2024-10-11 03:57:49,846 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e990123 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:57:49, skipping insertion in model container [2024-10-11 03:57:49,846 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:57:49" (3/3) ... [2024-10-11 03:57:49,846 INFO L112 eAbstractionObserver]: Analyzing ICFG cs_fib-2.i [2024-10-11 03:57:49,859 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 03:57:49,860 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 03:57:49,906 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 03:57:49,911 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;@600b73d6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 03:57:49,911 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 03:57:49,917 INFO L276 IsEmpty]: Start isEmpty. Operand has 173 states, 100 states have (on average 1.37) internal successors, (137), 101 states have internal predecessors, (137), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-10-11 03:57:49,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2024-10-11 03:57:49,931 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:57:49,932 INFO L215 NwaCegarLoop]: trace histogram [40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:57:49,932 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:57:49,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:57:49,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1200545891, now seen corresponding path program 1 times [2024-10-11 03:57:49,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:57:49,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495120865] [2024-10-11 03:57:49,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:57:49,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:57:50,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:50,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 03:57:50,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:50,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-11 03:57:50,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:50,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 03:57:50,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:50,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-11 03:57:50,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:50,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 03:57:50,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:50,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-11 03:57:50,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:50,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-11 03:57:50,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:50,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 03:57:50,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:50,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 03:57:50,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:50,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-11 03:57:50,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:50,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-11 03:57:50,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:50,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-11 03:57:50,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:50,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-11 03:57:50,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:50,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-11 03:57:50,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:50,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-11 03:57:50,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:50,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-11 03:57:50,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:50,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-11 03:57:50,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:50,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-11 03:57:50,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:50,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-11 03:57:50,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:50,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-11 03:57:50,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:50,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-11 03:57:50,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:50,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-11 03:57:50,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:50,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-11 03:57:50,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:50,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-11 03:57:50,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:50,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-11 03:57:51,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:51,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-10-11 03:57:51,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:51,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-11 03:57:51,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:51,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-10-11 03:57:51,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:51,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-10-11 03:57:51,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:51,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-10-11 03:57:51,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:51,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-10-11 03:57:51,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:51,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2024-10-11 03:57:51,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:51,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2024-10-11 03:57:51,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:51,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2024-10-11 03:57:51,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:51,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2024-10-11 03:57:51,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:51,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2024-10-11 03:57:51,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:51,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2024-10-11 03:57:51,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:51,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2024-10-11 03:57:51,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:51,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2024-10-11 03:57:51,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:51,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2024-10-11 03:57:51,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:51,107 INFO L134 CoverageAnalysis]: Checked inductivity of 3120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2024-10-11 03:57:51,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:57:51,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495120865] [2024-10-11 03:57:51,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495120865] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:57:51,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:57:51,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:57:51,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623563888] [2024-10-11 03:57:51,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:57:51,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:57:51,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:57:51,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:57:51,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:57:51,156 INFO L87 Difference]: Start difference. First operand has 173 states, 100 states have (on average 1.37) internal successors, (137), 101 states have internal predecessors, (137), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2024-10-11 03:57:55,210 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-11 03:57:55,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:57:55,310 INFO L93 Difference]: Finished difference Result 348 states and 608 transitions. [2024-10-11 03:57:55,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:57:55,313 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) Word has length 253 [2024-10-11 03:57:55,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:57:55,332 INFO L225 Difference]: With dead ends: 348 [2024-10-11 03:57:55,332 INFO L226 Difference]: Without dead ends: 174 [2024-10-11 03:57:55,340 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:57:55,343 INFO L432 NwaCegarLoop]: 255 mSDtfsCounter, 3 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:57:55,343 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 508 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-10-11 03:57:55,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2024-10-11 03:57:55,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 172. [2024-10-11 03:57:55,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 100 states have (on average 1.31) internal successors, (131), 101 states have internal predecessors, (131), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-10-11 03:57:55,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 262 transitions. [2024-10-11 03:57:55,425 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 262 transitions. Word has length 253 [2024-10-11 03:57:55,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:57:55,428 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 262 transitions. [2024-10-11 03:57:55,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2024-10-11 03:57:55,429 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 262 transitions. [2024-10-11 03:57:55,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2024-10-11 03:57:55,438 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:57:55,438 INFO L215 NwaCegarLoop]: trace histogram [40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:57:55,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 03:57:55,442 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:57:55,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:57:55,443 INFO L85 PathProgramCache]: Analyzing trace with hash 874410286, now seen corresponding path program 1 times [2024-10-11 03:57:55,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:57:55,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770815650] [2024-10-11 03:57:55,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:57:55,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:57:55,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:55,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-11 03:57:55,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:55,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 03:57:55,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:55,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 03:57:55,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:55,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-11 03:57:55,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:55,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-11 03:57:55,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:55,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-11 03:57:55,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:55,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-11 03:57:55,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:55,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-11 03:57:55,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:55,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-11 03:57:55,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:55,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-11 03:57:55,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:55,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-11 03:57:55,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:55,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-11 03:57:55,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:55,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 03:57:55,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:55,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-11 03:57:55,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:55,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-11 03:57:55,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:55,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-11 03:57:55,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:55,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-11 03:57:55,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:55,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-11 03:57:55,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:55,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-11 03:57:55,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:55,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-11 03:57:55,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:55,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-10-11 03:57:55,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:55,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-11 03:57:55,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:55,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-11 03:57:55,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:55,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-10-11 03:57:55,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:55,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-10-11 03:57:55,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:55,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-10-11 03:57:55,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:55,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-11 03:57:55,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:55,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-10-11 03:57:55,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:55,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-11 03:57:55,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:55,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-10-11 03:57:55,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:55,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2024-10-11 03:57:55,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:55,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2024-10-11 03:57:55,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:55,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-10-11 03:57:55,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:55,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2024-10-11 03:57:55,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:55,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-10-11 03:57:55,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:55,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2024-10-11 03:57:55,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:55,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-10-11 03:57:55,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:55,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2024-10-11 03:57:55,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:55,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-10-11 03:57:55,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:55,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2024-10-11 03:57:55,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:55,930 INFO L134 CoverageAnalysis]: Checked inductivity of 3121 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2024-10-11 03:57:55,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:57:55,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770815650] [2024-10-11 03:57:55,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770815650] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:57:55,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:57:55,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:57:55,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171379941] [2024-10-11 03:57:55,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:57:55,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:57:55,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:57:55,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:57:55,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:57:55,934 INFO L87 Difference]: Start difference. First operand 172 states and 262 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2024-10-11 03:57:55,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:57:55,985 INFO L93 Difference]: Finished difference Result 343 states and 524 transitions. [2024-10-11 03:57:55,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:57:55,986 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) Word has length 256 [2024-10-11 03:57:55,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:57:55,988 INFO L225 Difference]: With dead ends: 343 [2024-10-11 03:57:55,988 INFO L226 Difference]: Without dead ends: 173 [2024-10-11 03:57:55,989 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:57:55,989 INFO L432 NwaCegarLoop]: 255 mSDtfsCounter, 0 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:57:55,990 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 508 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:57:55,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2024-10-11 03:57:56,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2024-10-11 03:57:56,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 101 states have (on average 1.306930693069307) internal successors, (132), 102 states have internal predecessors, (132), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-10-11 03:57:56,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 263 transitions. [2024-10-11 03:57:56,003 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 263 transitions. Word has length 256 [2024-10-11 03:57:56,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:57:56,003 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 263 transitions. [2024-10-11 03:57:56,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2024-10-11 03:57:56,004 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 263 transitions. [2024-10-11 03:57:56,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2024-10-11 03:57:56,006 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:57:56,007 INFO L215 NwaCegarLoop]: trace histogram [40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:57:56,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 03:57:56,007 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:57:56,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:57:56,008 INFO L85 PathProgramCache]: Analyzing trace with hash -524137494, now seen corresponding path program 1 times [2024-10-11 03:57:56,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:57:56,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430078624] [2024-10-11 03:57:56,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:57:56,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:57:56,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:56,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 03:57:56,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:56,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 03:57:56,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:56,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 03:57:56,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:56,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-11 03:57:56,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:56,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 03:57:56,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:56,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-11 03:57:56,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:56,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-11 03:57:56,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:56,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-11 03:57:56,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:56,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-11 03:57:56,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:56,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-11 03:57:56,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:56,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 03:57:56,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:56,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-11 03:57:56,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:56,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-11 03:57:56,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:56,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-11 03:57:56,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:56,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-11 03:57:56,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:56,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-11 03:57:56,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:56,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-11 03:57:56,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:56,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-11 03:57:56,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:56,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-11 03:57:56,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:56,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-11 03:57:56,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:56,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-11 03:57:56,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:56,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-11 03:57:56,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:56,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-11 03:57:56,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:56,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-11 03:57:56,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:56,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-11 03:57:56,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:56,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-10-11 03:57:56,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:56,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-10-11 03:57:56,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:56,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-11 03:57:56,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:56,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-10-11 03:57:56,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:56,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-10-11 03:57:56,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:56,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-10-11 03:57:56,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:56,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2024-10-11 03:57:56,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:56,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2024-10-11 03:57:56,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:56,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2024-10-11 03:57:56,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:56,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2024-10-11 03:57:56,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:56,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2024-10-11 03:57:56,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:56,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2024-10-11 03:57:56,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:56,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2024-10-11 03:57:56,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:56,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2024-10-11 03:57:56,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:56,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2024-10-11 03:57:56,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:56,495 INFO L134 CoverageAnalysis]: Checked inductivity of 3122 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2024-10-11 03:57:56,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:57:56,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430078624] [2024-10-11 03:57:56,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430078624] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:57:56,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1537625842] [2024-10-11 03:57:56,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:57:56,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:57:56,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:57:56,501 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 03:57:56,504 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 03:57:56,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:56,983 INFO L255 TraceCheckSpWp]: Trace formula consists of 1310 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 03:57:56,994 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:57:57,038 INFO L134 CoverageAnalysis]: Checked inductivity of 3122 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2024-10-11 03:57:57,038 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 03:57:57,249 INFO L134 CoverageAnalysis]: Checked inductivity of 3122 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2024-10-11 03:57:57,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1537625842] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 03:57:57,250 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 03:57:57,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2024-10-11 03:57:57,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458461628] [2024-10-11 03:57:57,251 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 03:57:57,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 03:57:57,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:57:57,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 03:57:57,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 03:57:57,255 INFO L87 Difference]: Start difference. First operand 173 states and 263 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 1 states have call successors, (81), 2 states have call predecessors, (81), 2 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) [2024-10-11 03:57:57,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:57:57,333 INFO L93 Difference]: Finished difference Result 346 states and 528 transitions. [2024-10-11 03:57:57,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 03:57:57,334 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 1 states have call successors, (81), 2 states have call predecessors, (81), 2 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) Word has length 257 [2024-10-11 03:57:57,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:57:57,336 INFO L225 Difference]: With dead ends: 346 [2024-10-11 03:57:57,338 INFO L226 Difference]: Without dead ends: 175 [2024-10-11 03:57:57,338 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 596 GetRequests, 591 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 03:57:57,340 INFO L432 NwaCegarLoop]: 255 mSDtfsCounter, 0 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 761 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:57:57,342 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 761 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:57:57,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2024-10-11 03:57:57,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2024-10-11 03:57:57,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 103 states have (on average 1.3009708737864079) internal successors, (134), 104 states have internal predecessors, (134), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-10-11 03:57:57,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 265 transitions. [2024-10-11 03:57:57,361 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 265 transitions. Word has length 257 [2024-10-11 03:57:57,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:57:57,362 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 265 transitions. [2024-10-11 03:57:57,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 1 states have call successors, (81), 2 states have call predecessors, (81), 2 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) [2024-10-11 03:57:57,363 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 265 transitions. [2024-10-11 03:57:57,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2024-10-11 03:57:57,365 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:57:57,366 INFO L215 NwaCegarLoop]: trace histogram [40, 40, 40, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:57:57,382 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-11 03:57:57,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:57:57,570 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:57:57,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:57:57,571 INFO L85 PathProgramCache]: Analyzing trace with hash -609098646, now seen corresponding path program 2 times [2024-10-11 03:57:57,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:57:57,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552058872] [2024-10-11 03:57:57,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:57:57,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:57:57,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:57,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-11 03:57:57,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:57,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 03:57:57,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:57,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-11 03:57:57,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:57,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 03:57:57,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:57,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-11 03:57:57,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:57,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-11 03:57:57,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:57,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 03:57:57,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:57,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 03:57:57,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:57,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-11 03:57:57,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:57,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-11 03:57:57,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:57,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-11 03:57:57,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:57,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-11 03:57:57,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:57,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-11 03:57:57,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:57,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-11 03:57:57,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:57,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-11 03:57:57,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:57,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-11 03:57:57,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:57,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-11 03:57:57,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:57,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-11 03:57:57,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:57,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-11 03:57:57,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:57,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-11 03:57:57,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:57,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-11 03:57:57,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:57,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-11 03:57:57,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:57,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-11 03:57:57,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:57,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-11 03:57:57,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:57,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-10-11 03:57:57,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:57,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-11 03:57:57,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:57,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-10-11 03:57:57,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:57,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-10-11 03:57:57,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:57,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-10-11 03:57:57,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:57,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-10-11 03:57:57,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:57,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2024-10-11 03:57:57,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:57,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2024-10-11 03:57:57,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:57,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2024-10-11 03:57:57,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:57,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2024-10-11 03:57:57,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:57,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2024-10-11 03:57:57,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:57,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2024-10-11 03:57:57,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:57,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2024-10-11 03:57:57,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:57,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2024-10-11 03:57:57,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:58,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2024-10-11 03:57:58,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:58,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2024-10-11 03:57:58,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:57:58,006 INFO L134 CoverageAnalysis]: Checked inductivity of 3127 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3126 trivial. 0 not checked. [2024-10-11 03:57:58,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:57:58,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552058872] [2024-10-11 03:57:58,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552058872] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:57:58,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [732057418] [2024-10-11 03:57:58,006 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 03:57:58,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:57:58,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:57:58,009 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 03:57:58,018 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 03:57:58,436 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-11 03:57:58,437 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 03:57:58,441 INFO L255 TraceCheckSpWp]: Trace formula consists of 682 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-11 03:57:58,447 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:57:59,438 INFO L134 CoverageAnalysis]: Checked inductivity of 3127 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3127 trivial. 0 not checked. [2024-10-11 03:57:59,440 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 03:57:59,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [732057418] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:57:59,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 03:57:59,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2024-10-11 03:57:59,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999404143] [2024-10-11 03:57:59,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:57:59,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:57:59,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:57:59,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:57:59,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:57:59,443 INFO L87 Difference]: Start difference. First operand 175 states and 265 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2024-10-11 03:57:59,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:57:59,599 INFO L93 Difference]: Finished difference Result 345 states and 523 transitions. [2024-10-11 03:57:59,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 03:57:59,599 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) Word has length 259 [2024-10-11 03:57:59,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:57:59,605 INFO L225 Difference]: With dead ends: 345 [2024-10-11 03:57:59,605 INFO L226 Difference]: Without dead ends: 343 [2024-10-11 03:57:59,605 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 336 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-10-11 03:57:59,606 INFO L432 NwaCegarLoop]: 247 mSDtfsCounter, 129 mSDsluCounter, 720 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 967 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:57:59,606 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 967 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:57:59,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2024-10-11 03:57:59,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 341. [2024-10-11 03:57:59,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 198 states have (on average 1.297979797979798) internal successors, (257), 199 states have internal predecessors, (257), 131 states have call successors, (131), 11 states have call predecessors, (131), 11 states have return successors, (132), 130 states have call predecessors, (132), 129 states have call successors, (132) [2024-10-11 03:57:59,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 520 transitions. [2024-10-11 03:57:59,636 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 520 transitions. Word has length 259 [2024-10-11 03:57:59,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:57:59,638 INFO L471 AbstractCegarLoop]: Abstraction has 341 states and 520 transitions. [2024-10-11 03:57:59,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2024-10-11 03:57:59,638 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 520 transitions. [2024-10-11 03:57:59,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2024-10-11 03:57:59,641 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:57:59,641 INFO L215 NwaCegarLoop]: trace histogram [40, 40, 40, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:57:59,658 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-11 03:57:59,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:57:59,842 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:57:59,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:57:59,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1122135805, now seen corresponding path program 1 times [2024-10-11 03:57:59,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:57:59,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306568783] [2024-10-11 03:57:59,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:57:59,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:58:00,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:00,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-11 03:58:00,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:00,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 03:58:00,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:00,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-11 03:58:00,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:00,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 03:58:00,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:00,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-11 03:58:00,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:00,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-11 03:58:00,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:00,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 03:58:00,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:00,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 03:58:00,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:00,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-11 03:58:00,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:00,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-11 03:58:00,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:00,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-11 03:58:00,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:00,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-11 03:58:00,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:00,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-11 03:58:00,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:00,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-11 03:58:00,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:00,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-11 03:58:00,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:00,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-11 03:58:00,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:00,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-11 03:58:00,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:00,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-11 03:58:00,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:00,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-11 03:58:00,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:00,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-11 03:58:00,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:00,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-11 03:58:00,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:00,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-11 03:58:00,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:00,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-11 03:58:00,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:00,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-11 03:58:00,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:00,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-10-11 03:58:00,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:00,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-11 03:58:00,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:00,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-10-11 03:58:00,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:00,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-10-11 03:58:00,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:00,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-10-11 03:58:00,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:00,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-10-11 03:58:00,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:00,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2024-10-11 03:58:00,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:00,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2024-10-11 03:58:00,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:00,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2024-10-11 03:58:00,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:00,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2024-10-11 03:58:00,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:00,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2024-10-11 03:58:00,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:00,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2024-10-11 03:58:00,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:00,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2024-10-11 03:58:00,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:00,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2024-10-11 03:58:00,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:00,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2024-10-11 03:58:00,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:00,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2024-10-11 03:58:00,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:00,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2024-10-11 03:58:00,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:00,359 INFO L134 CoverageAnalysis]: Checked inductivity of 3129 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 3126 trivial. 0 not checked. [2024-10-11 03:58:00,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:58:00,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306568783] [2024-10-11 03:58:00,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306568783] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:58:00,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1290667727] [2024-10-11 03:58:00,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:58:00,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:58:00,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:58:00,362 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 03:58:00,365 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-11 03:58:00,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:00,880 INFO L255 TraceCheckSpWp]: Trace formula consists of 1373 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 03:58:00,887 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:58:00,908 INFO L134 CoverageAnalysis]: Checked inductivity of 3129 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3128 trivial. 0 not checked. [2024-10-11 03:58:00,909 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 03:58:01,060 INFO L134 CoverageAnalysis]: Checked inductivity of 3129 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 3126 trivial. 0 not checked. [2024-10-11 03:58:01,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1290667727] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 03:58:01,061 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 03:58:01,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 4] total 7 [2024-10-11 03:58:01,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390886412] [2024-10-11 03:58:01,061 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 03:58:01,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:58:01,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:58:01,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:58:01,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:58:01,063 INFO L87 Difference]: Start difference. First operand 341 states and 520 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 1 states have call successors, (83), 2 states have call predecessors, (83), 2 states have return successors, (82), 1 states have call predecessors, (82), 1 states have call successors, (82) [2024-10-11 03:58:05,108 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-11 03:58:09,118 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-11 03:58:13,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-11 03:58:17,174 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-11 03:58:21,210 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-11 03:58:21,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:58:21,264 INFO L93 Difference]: Finished difference Result 692 states and 1054 transitions. [2024-10-11 03:58:21,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 03:58:21,265 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 1 states have call successors, (83), 2 states have call predecessors, (83), 2 states have return successors, (82), 1 states have call predecessors, (82), 1 states have call successors, (82) Word has length 264 [2024-10-11 03:58:21,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:58:21,267 INFO L225 Difference]: With dead ends: 692 [2024-10-11 03:58:21,267 INFO L226 Difference]: Without dead ends: 359 [2024-10-11 03:58:21,269 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 611 GetRequests, 606 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:58:21,269 INFO L432 NwaCegarLoop]: 254 mSDtfsCounter, 6 mSDsluCounter, 757 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 1011 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:58:21,270 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 1011 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 5 Unknown, 0 Unchecked, 20.2s Time] [2024-10-11 03:58:21,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2024-10-11 03:58:21,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 359. [2024-10-11 03:58:21,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 216 states have (on average 1.287037037037037) internal successors, (278), 217 states have internal predecessors, (278), 131 states have call successors, (131), 11 states have call predecessors, (131), 11 states have return successors, (132), 130 states have call predecessors, (132), 129 states have call successors, (132) [2024-10-11 03:58:21,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 541 transitions. [2024-10-11 03:58:21,292 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 541 transitions. Word has length 264 [2024-10-11 03:58:21,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:58:21,292 INFO L471 AbstractCegarLoop]: Abstraction has 359 states and 541 transitions. [2024-10-11 03:58:21,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 1 states have call successors, (83), 2 states have call predecessors, (83), 2 states have return successors, (82), 1 states have call predecessors, (82), 1 states have call successors, (82) [2024-10-11 03:58:21,293 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 541 transitions. [2024-10-11 03:58:21,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2024-10-11 03:58:21,295 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:58:21,295 INFO L215 NwaCegarLoop]: trace histogram [40, 40, 40, 12, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:58:21,312 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-11 03:58:21,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:58:21,497 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:58:21,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:58:21,497 INFO L85 PathProgramCache]: Analyzing trace with hash 504471950, now seen corresponding path program 2 times [2024-10-11 03:58:21,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:58:21,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542457796] [2024-10-11 03:58:21,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:58:21,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:58:21,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:22,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 03:58:22,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:22,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-11 03:58:22,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:22,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-11 03:58:22,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:22,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 03:58:22,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:22,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 03:58:22,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:22,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-11 03:58:22,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:22,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-11 03:58:22,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:22,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-11 03:58:22,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:22,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-11 03:58:22,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:22,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-11 03:58:22,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:22,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-11 03:58:22,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:22,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-11 03:58:22,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:22,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-11 03:58:22,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:22,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-11 03:58:22,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:22,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-11 03:58:22,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:22,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-11 03:58:22,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:22,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-11 03:58:22,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:22,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-11 03:58:22,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:22,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-11 03:58:22,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:22,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-11 03:58:22,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:22,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-11 03:58:22,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:22,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-10-11 03:58:22,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:22,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-11 03:58:22,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:22,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-10-11 03:58:22,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:22,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-10-11 03:58:22,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:22,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-10-11 03:58:22,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:22,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-10-11 03:58:22,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:22,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2024-10-11 03:58:22,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:22,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2024-10-11 03:58:22,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:22,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2024-10-11 03:58:22,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:22,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2024-10-11 03:58:22,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:22,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2024-10-11 03:58:22,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:22,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2024-10-11 03:58:22,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:22,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2024-10-11 03:58:22,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:22,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2024-10-11 03:58:22,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:22,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2024-10-11 03:58:22,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:22,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2024-10-11 03:58:22,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:22,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2024-10-11 03:58:22,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:22,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2024-10-11 03:58:22,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:22,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2024-10-11 03:58:22,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:22,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2024-10-11 03:58:22,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:22,300 INFO L134 CoverageAnalysis]: Checked inductivity of 3258 backedges. 2 proven. 112 refuted. 0 times theorem prover too weak. 3144 trivial. 0 not checked. [2024-10-11 03:58:22,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:58:22,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542457796] [2024-10-11 03:58:22,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542457796] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:58:22,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2596525] [2024-10-11 03:58:22,301 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 03:58:22,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:58:22,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:58:22,302 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 03:58:22,303 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-11 03:58:23,208 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-11 03:58:23,209 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 03:58:23,213 INFO L255 TraceCheckSpWp]: Trace formula consists of 682 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-11 03:58:23,220 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:58:23,379 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 176 treesize of output 38 [2024-10-11 03:58:23,392 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 03:58:23,393 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 19 [2024-10-11 03:58:23,416 INFO L134 CoverageAnalysis]: Checked inductivity of 3258 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3258 trivial. 0 not checked. [2024-10-11 03:58:23,416 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 03:58:23,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2596525] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:58:23,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 03:58:23,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2024-10-11 03:58:23,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143746077] [2024-10-11 03:58:23,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:58:23,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 03:58:23,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:58:23,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 03:58:23,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-10-11 03:58:23,418 INFO L87 Difference]: Start difference. First operand 359 states and 541 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) [2024-10-11 03:58:27,451 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-11 03:58:27,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:58:27,542 INFO L93 Difference]: Finished difference Result 682 states and 1034 transitions. [2024-10-11 03:58:27,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 03:58:27,542 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) Word has length 282 [2024-10-11 03:58:27,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:58:27,545 INFO L225 Difference]: With dead ends: 682 [2024-10-11 03:58:27,545 INFO L226 Difference]: Without dead ends: 359 [2024-10-11 03:58:27,546 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 370 GetRequests, 362 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-11 03:58:27,547 INFO L432 NwaCegarLoop]: 251 mSDtfsCounter, 254 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:58:27,547 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 484 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-10-11 03:58:27,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2024-10-11 03:58:27,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 359. [2024-10-11 03:58:27,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 216 states have (on average 1.2824074074074074) internal successors, (277), 217 states have internal predecessors, (277), 131 states have call successors, (131), 11 states have call predecessors, (131), 11 states have return successors, (132), 130 states have call predecessors, (132), 129 states have call successors, (132) [2024-10-11 03:58:27,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 540 transitions. [2024-10-11 03:58:27,566 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 540 transitions. Word has length 282 [2024-10-11 03:58:27,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:58:27,566 INFO L471 AbstractCegarLoop]: Abstraction has 359 states and 540 transitions. [2024-10-11 03:58:27,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) [2024-10-11 03:58:27,566 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 540 transitions. [2024-10-11 03:58:27,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2024-10-11 03:58:27,569 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:58:27,570 INFO L215 NwaCegarLoop]: trace histogram [41, 41, 41, 12, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:58:27,592 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-11 03:58:27,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-10-11 03:58:27,774 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:58:27,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:58:27,774 INFO L85 PathProgramCache]: Analyzing trace with hash -446215448, now seen corresponding path program 1 times [2024-10-11 03:58:27,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:58:27,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387064060] [2024-10-11 03:58:27,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:58:27,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:58:28,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:28,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-11 03:58:28,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:28,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:58:28,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:28,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:58:28,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:28,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-11 03:58:28,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:28,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-11 03:58:28,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:28,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 03:58:28,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:28,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-11 03:58:28,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:28,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-11 03:58:28,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:28,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-11 03:58:28,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:28,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-11 03:58:28,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:28,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-11 03:58:28,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:28,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-11 03:58:28,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:28,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-11 03:58:28,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:28,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-11 03:58:28,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:28,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-11 03:58:28,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:28,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-11 03:58:28,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:28,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-11 03:58:28,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:28,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-11 03:58:28,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:28,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-11 03:58:28,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:28,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-11 03:58:28,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:28,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-11 03:58:28,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:28,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-10-11 03:58:28,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:28,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-10-11 03:58:28,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:28,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-10-11 03:58:28,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:28,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-10-11 03:58:28,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:28,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-10-11 03:58:28,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:28,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-10-11 03:58:28,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:28,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-10-11 03:58:28,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:28,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-10-11 03:58:28,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:28,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2024-10-11 03:58:28,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:28,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2024-10-11 03:58:28,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:28,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-10-11 03:58:28,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:28,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2024-10-11 03:58:28,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:28,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2024-10-11 03:58:28,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:28,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2024-10-11 03:58:28,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:28,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2024-10-11 03:58:28,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:28,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2024-10-11 03:58:28,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:28,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2024-10-11 03:58:28,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:28,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2024-10-11 03:58:28,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:28,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2024-10-11 03:58:28,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:28,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2024-10-11 03:58:28,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:28,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2024-10-11 03:58:28,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:28,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2024-10-11 03:58:28,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:28,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2024-10-11 03:58:28,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:28,852 INFO L134 CoverageAnalysis]: Checked inductivity of 3418 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3416 trivial. 0 not checked. [2024-10-11 03:58:28,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:58:28,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387064060] [2024-10-11 03:58:28,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387064060] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:58:28,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:58:28,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 03:58:28,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401345760] [2024-10-11 03:58:28,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:58:28,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 03:58:28,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:58:28,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 03:58:28,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 03:58:28,855 INFO L87 Difference]: Start difference. First operand 359 states and 540 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 4 states have internal predecessors, (72), 4 states have call successors, (45), 4 states have call predecessors, (45), 2 states have return successors, (44), 3 states have call predecessors, (44), 4 states have call successors, (44) [2024-10-11 03:58:32,920 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-11 03:58:36,931 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-11 03:58:38,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:58:38,763 INFO L93 Difference]: Finished difference Result 1022 states and 1565 transitions. [2024-10-11 03:58:38,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-11 03:58:38,763 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 4 states have internal predecessors, (72), 4 states have call successors, (45), 4 states have call predecessors, (45), 2 states have return successors, (44), 3 states have call predecessors, (44), 4 states have call successors, (44) Word has length 301 [2024-10-11 03:58:38,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:58:38,771 INFO L225 Difference]: With dead ends: 1022 [2024-10-11 03:58:38,775 INFO L226 Difference]: Without dead ends: 697 [2024-10-11 03:58:38,777 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-10-11 03:58:38,778 INFO L432 NwaCegarLoop]: 204 mSDtfsCounter, 255 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 142 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 692 SdHoareTripleChecker+Invalid, 649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2024-10-11 03:58:38,778 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [305 Valid, 692 Invalid, 649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 505 Invalid, 2 Unknown, 0 Unchecked, 9.4s Time] [2024-10-11 03:58:38,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2024-10-11 03:58:38,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 363. [2024-10-11 03:58:38,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 218 states have (on average 1.2798165137614679) internal successors, (279), 221 states have internal predecessors, (279), 131 states have call successors, (131), 11 states have call predecessors, (131), 13 states have return successors, (136), 130 states have call predecessors, (136), 129 states have call successors, (136) [2024-10-11 03:58:38,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 546 transitions. [2024-10-11 03:58:38,822 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 546 transitions. Word has length 301 [2024-10-11 03:58:38,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:58:38,823 INFO L471 AbstractCegarLoop]: Abstraction has 363 states and 546 transitions. [2024-10-11 03:58:38,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 4 states have internal predecessors, (72), 4 states have call successors, (45), 4 states have call predecessors, (45), 2 states have return successors, (44), 3 states have call predecessors, (44), 4 states have call successors, (44) [2024-10-11 03:58:38,823 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 546 transitions. [2024-10-11 03:58:38,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2024-10-11 03:58:38,826 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:58:38,826 INFO L215 NwaCegarLoop]: trace histogram [41, 41, 41, 12, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:58:38,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 03:58:38,826 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:58:38,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:58:38,827 INFO L85 PathProgramCache]: Analyzing trace with hash 398465780, now seen corresponding path program 1 times [2024-10-11 03:58:38,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:58:38,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157826518] [2024-10-11 03:58:38,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:58:38,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:58:39,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:39,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-11 03:58:39,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:40,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 03:58:40,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:40,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:58:40,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:40,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 03:58:40,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:40,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 03:58:40,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:40,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-11 03:58:40,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:40,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-11 03:58:40,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:40,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-11 03:58:40,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:40,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-11 03:58:40,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:40,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-11 03:58:40,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:40,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-11 03:58:40,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:40,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-11 03:58:40,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:40,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-11 03:58:40,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:40,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-11 03:58:40,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:40,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-11 03:58:40,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:40,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-11 03:58:40,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:40,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-11 03:58:40,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:40,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-11 03:58:40,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:40,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-11 03:58:40,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:40,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-11 03:58:40,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:40,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-11 03:58:40,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:40,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-10-11 03:58:40,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:40,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-11 03:58:40,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:40,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-10-11 03:58:40,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:40,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-10-11 03:58:40,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:40,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-10-11 03:58:40,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:40,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-10-11 03:58:40,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:40,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2024-10-11 03:58:40,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:40,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2024-10-11 03:58:40,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:40,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2024-10-11 03:58:40,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:40,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2024-10-11 03:58:40,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:40,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2024-10-11 03:58:40,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:40,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2024-10-11 03:58:40,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:40,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2024-10-11 03:58:40,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:40,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2024-10-11 03:58:40,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:40,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2024-10-11 03:58:40,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:40,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2024-10-11 03:58:40,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:40,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2024-10-11 03:58:40,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:40,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2024-10-11 03:58:40,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:40,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2024-10-11 03:58:40,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:40,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2024-10-11 03:58:40,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:40,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2024-10-11 03:58:40,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:40,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2024-10-11 03:58:40,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:40,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2024-10-11 03:58:40,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:40,082 INFO L134 CoverageAnalysis]: Checked inductivity of 3418 backedges. 2 proven. 112 refuted. 0 times theorem prover too weak. 3304 trivial. 0 not checked. [2024-10-11 03:58:40,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:58:40,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157826518] [2024-10-11 03:58:40,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157826518] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:58:40,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1495647452] [2024-10-11 03:58:40,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:58:40,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:58:40,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:58:40,085 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 03:58:40,089 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-11 03:58:40,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:58:40,776 INFO L255 TraceCheckSpWp]: Trace formula consists of 1902 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-11 03:58:40,781 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:58:40,835 INFO L134 CoverageAnalysis]: Checked inductivity of 3418 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 3306 trivial. 0 not checked. [2024-10-11 03:58:40,836 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 03:58:41,113 INFO L134 CoverageAnalysis]: Checked inductivity of 3418 backedges. 2 proven. 112 refuted. 0 times theorem prover too weak. 3304 trivial. 0 not checked. [2024-10-11 03:58:41,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1495647452] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 03:58:41,113 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 03:58:41,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 7] total 11 [2024-10-11 03:58:41,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853115210] [2024-10-11 03:58:41,114 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 03:58:41,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-11 03:58:41,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:58:41,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-11 03:58:41,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2024-10-11 03:58:41,116 INFO L87 Difference]: Start difference. First operand 363 states and 546 transitions. Second operand has 11 states, 11 states have (on average 9.818181818181818) internal successors, (108), 9 states have internal predecessors, (108), 2 states have call successors, (91), 4 states have call predecessors, (91), 2 states have return successors, (88), 2 states have call predecessors, (88), 2 states have call successors, (88) [2024-10-11 03:58:45,216 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-11 03:58:49,251 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-11 03:58:53,288 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-11 03:58:57,300 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-11 03:59:01,313 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-11 03:59:05,369 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-11 03:59:09,386 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-11 03:59:13,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-11 03:59:17,429 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-11 03:59:17,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:59:17,986 INFO L93 Difference]: Finished difference Result 712 states and 1077 transitions. [2024-10-11 03:59:17,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 03:59:17,987 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.818181818181818) internal successors, (108), 9 states have internal predecessors, (108), 2 states have call successors, (91), 4 states have call predecessors, (91), 2 states have return successors, (88), 2 states have call predecessors, (88), 2 states have call successors, (88) Word has length 300 [2024-10-11 03:59:17,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:59:17,990 INFO L225 Difference]: With dead ends: 712 [2024-10-11 03:59:17,990 INFO L226 Difference]: Without dead ends: 375 [2024-10-11 03:59:17,991 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 692 GetRequests, 679 SyntacticMatches, 4 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2024-10-11 03:59:17,992 INFO L432 NwaCegarLoop]: 231 mSDtfsCounter, 35 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 133 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 685 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.8s IncrementalHoareTripleChecker+Time [2024-10-11 03:59:17,992 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 685 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 282 Invalid, 9 Unknown, 0 Unchecked, 36.8s Time] [2024-10-11 03:59:17,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2024-10-11 03:59:18,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 375. [2024-10-11 03:59:18,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 230 states have (on average 1.2739130434782608) internal successors, (293), 233 states have internal predecessors, (293), 131 states have call successors, (131), 11 states have call predecessors, (131), 13 states have return successors, (136), 130 states have call predecessors, (136), 129 states have call successors, (136) [2024-10-11 03:59:18,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 560 transitions. [2024-10-11 03:59:18,015 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 560 transitions. Word has length 300 [2024-10-11 03:59:18,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:59:18,016 INFO L471 AbstractCegarLoop]: Abstraction has 375 states and 560 transitions. [2024-10-11 03:59:18,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.818181818181818) internal successors, (108), 9 states have internal predecessors, (108), 2 states have call successors, (91), 4 states have call predecessors, (91), 2 states have return successors, (88), 2 states have call predecessors, (88), 2 states have call successors, (88) [2024-10-11 03:59:18,016 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 560 transitions. [2024-10-11 03:59:18,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2024-10-11 03:59:18,018 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:59:18,018 INFO L215 NwaCegarLoop]: trace histogram [41, 41, 41, 18, 6, 6, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:59:18,038 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-11 03:59:18,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:59:18,223 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:59:18,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:59:18,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1153889894, now seen corresponding path program 2 times [2024-10-11 03:59:18,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:59:18,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985662734] [2024-10-11 03:59:18,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:59:18,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:59:18,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:59:19,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 03:59:19,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:59:19,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 03:59:19,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:59:19,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:59:19,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:59:19,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-11 03:59:19,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:59:19,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-11 03:59:19,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:59:19,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-11 03:59:19,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:59:19,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-11 03:59:19,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:59:19,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-11 03:59:19,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:59:19,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-11 03:59:19,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:59:19,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-11 03:59:19,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:59:19,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-11 03:59:19,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:59:19,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-11 03:59:19,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:59:19,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-11 03:59:19,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:59:19,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-11 03:59:19,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:59:19,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-11 03:59:19,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:59:19,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-11 03:59:19,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:59:19,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-11 03:59:19,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:59:19,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-11 03:59:19,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:59:19,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-11 03:59:19,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:59:19,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-10-11 03:59:19,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:59:19,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-11 03:59:19,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:59:19,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-10-11 03:59:19,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:59:19,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-10-11 03:59:19,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:59:19,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-10-11 03:59:19,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:59:19,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-10-11 03:59:19,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:59:19,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2024-10-11 03:59:19,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:59:19,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2024-10-11 03:59:19,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:59:19,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2024-10-11 03:59:19,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:59:19,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2024-10-11 03:59:19,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:59:19,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2024-10-11 03:59:19,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:59:19,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2024-10-11 03:59:19,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:59:19,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2024-10-11 03:59:19,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:59:19,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2024-10-11 03:59:19,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:59:19,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2024-10-11 03:59:19,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:59:19,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2024-10-11 03:59:19,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:59:19,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2024-10-11 03:59:19,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:59:19,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2024-10-11 03:59:19,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:59:19,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2024-10-11 03:59:19,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:59:19,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2024-10-11 03:59:19,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:59:19,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2024-10-11 03:59:19,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:59:19,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2024-10-11 03:59:19,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:59:19,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2024-10-11 03:59:19,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:59:19,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2024-10-11 03:59:19,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:59:19,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2024-10-11 03:59:19,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:59:19,956 INFO L134 CoverageAnalysis]: Checked inductivity of 3594 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3592 trivial. 0 not checked. [2024-10-11 03:59:19,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:59:19,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985662734] [2024-10-11 03:59:19,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985662734] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:59:19,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:59:19,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-11 03:59:19,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83098025] [2024-10-11 03:59:19,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:59:19,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 03:59:19,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:59:19,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 03:59:19,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-11 03:59:19,959 INFO L87 Difference]: Start difference. First operand 375 states and 560 transitions. Second operand has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 6 states have internal predecessors, (71), 4 states have call successors, (45), 4 states have call predecessors, (45), 2 states have return successors, (44), 3 states have call predecessors, (44), 4 states have call successors, (44)