./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/seq-pthread/cs_fib_longer-1.i --full-output --preprocessor.use.memory.slicer true --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6ae2ee47 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/seq-pthread/cs_fib_longer-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f6c9b52ffa673147438276e1d7b786b060eda002f60ced6e1594740d0a0004b3 --preprocessor.use.memory.slicer true --- Real Ultimate output --- This is Ultimate 0.2.3-dev-6ae2ee4-m [2023-11-22 21:47:47,124 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-22 21:47:47,202 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-22 21:47:47,209 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-22 21:47:47,210 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-22 21:47:47,243 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-22 21:47:47,244 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-22 21:47:47,244 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-22 21:47:47,245 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-22 21:47:47,248 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-22 21:47:47,249 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-22 21:47:47,249 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-22 21:47:47,250 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-22 21:47:47,251 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-22 21:47:47,252 INFO L153 SettingsManager]: * Use SBE=true [2023-11-22 21:47:47,252 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-22 21:47:47,252 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-22 21:47:47,252 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-22 21:47:47,253 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-22 21:47:47,253 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-22 21:47:47,253 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-22 21:47:47,254 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-22 21:47:47,254 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-22 21:47:47,254 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-22 21:47:47,254 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-22 21:47:47,254 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-22 21:47:47,255 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-22 21:47:47,255 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-22 21:47:47,256 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-22 21:47:47,256 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-22 21:47:47,257 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-22 21:47:47,257 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-22 21:47:47,257 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-22 21:47:47,257 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-22 21:47:47,258 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-22 21:47:47,258 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-22 21:47:47,258 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-22 21:47:47,258 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-22 21:47:47,259 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-22 21:47:47,259 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-22 21:47:47,259 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-22 21:47:47,259 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-22 21:47:47,260 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f6c9b52ffa673147438276e1d7b786b060eda002f60ced6e1594740d0a0004b3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Use memory slicer -> true [2023-11-22 21:47:47,515 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-22 21:47:47,544 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-22 21:47:47,546 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-22 21:47:47,548 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-22 21:47:47,549 INFO L274 PluginConnector]: CDTParser initialized [2023-11-22 21:47:47,549 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-pthread/cs_fib_longer-1.i [2023-11-22 21:47:48,676 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-22 21:47:49,034 INFO L384 CDTParser]: Found 1 translation units. [2023-11-22 21:47:49,036 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-pthread/cs_fib_longer-1.i [2023-11-22 21:47:49,053 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f82a6b601/2e83d066634d4752a5131354cc8095ff/FLAGcea3842f8 [2023-11-22 21:47:49,064 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f82a6b601/2e83d066634d4752a5131354cc8095ff [2023-11-22 21:47:49,066 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-22 21:47:49,068 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-22 21:47:49,070 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-22 21:47:49,070 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-22 21:47:49,074 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-22 21:47:49,074 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:47:49" (1/1) ... [2023-11-22 21:47:49,075 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6246ce07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:47:49, skipping insertion in model container [2023-11-22 21:47:49,075 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:47:49" (1/1) ... [2023-11-22 21:47:49,136 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-22 21:47:49,418 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-pthread/cs_fib_longer-1.i[23609,23622] [2023-11-22 21:47:49,567 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-22 21:47:49,586 INFO L202 MainTranslator]: Completed pre-run [2023-11-22 21:47:49,623 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-pthread/cs_fib_longer-1.i[23609,23622] [2023-11-22 21:47:49,685 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-22 21:47:49,724 INFO L206 MainTranslator]: Completed translation [2023-11-22 21:47:49,725 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:47:49 WrapperNode [2023-11-22 21:47:49,725 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-22 21:47:49,726 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-22 21:47:49,727 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-22 21:47:49,727 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-22 21:47:49,733 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:47:49" (1/1) ... [2023-11-22 21:47:49,760 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:47:49" (1/1) ... [2023-11-22 21:47:49,825 INFO L138 Inliner]: procedures = 144, calls = 395, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 743 [2023-11-22 21:47:49,834 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-22 21:47:49,835 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-22 21:47:49,835 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-22 21:47:49,835 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-22 21:47:49,846 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:47:49" (1/1) ... [2023-11-22 21:47:49,846 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:47:49" (1/1) ... [2023-11-22 21:47:49,856 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:47:49" (1/1) ... [2023-11-22 21:47:49,898 INFO L189 HeapSplitter]: Split 260 memory accesses to 13 slices as follows [2, 8, 8, 13, 41, 36, 25, 25, 11, 4, 13, 37, 37] [2023-11-22 21:47:49,899 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:47:49" (1/1) ... [2023-11-22 21:47:49,899 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:47:49" (1/1) ... [2023-11-22 21:47:49,945 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:47:49" (1/1) ... [2023-11-22 21:47:49,950 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:47:49" (1/1) ... [2023-11-22 21:47:49,955 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:47:49" (1/1) ... [2023-11-22 21:47:49,961 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:47:49" (1/1) ... [2023-11-22 21:47:49,970 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-22 21:47:49,971 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-22 21:47:49,972 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-22 21:47:49,972 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-22 21:47:49,973 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:47:49" (1/1) ... [2023-11-22 21:47:49,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-22 21:47:49,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:47:50,018 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-22 21:47:50,032 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-22 21:47:50,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-22 21:47:50,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-22 21:47:50,084 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-22 21:47:50,084 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-22 21:47:50,084 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-22 21:47:50,085 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-22 21:47:50,085 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-22 21:47:50,086 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-22 21:47:50,086 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-11-22 21:47:50,087 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-11-22 21:47:50,087 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-11-22 21:47:50,087 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-11-22 21:47:50,087 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2023-11-22 21:47:50,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-22 21:47:50,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-22 21:47:50,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-22 21:47:50,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-22 21:47:50,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-22 21:47:50,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-22 21:47:50,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-22 21:47:50,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-22 21:47:50,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-11-22 21:47:50,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-11-22 21:47:50,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-11-22 21:47:50,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-11-22 21:47:50,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2023-11-22 21:47:50,090 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-22 21:47:50,091 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-22 21:47:50,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-22 21:47:50,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-22 21:47:50,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-22 21:47:50,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-22 21:47:50,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-22 21:47:50,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-22 21:47:50,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-22 21:47:50,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-22 21:47:50,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-22 21:47:50,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-11-22 21:47:50,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2023-11-22 21:47:50,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2023-11-22 21:47:50,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2023-11-22 21:47:50,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2023-11-22 21:47:50,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2023-11-22 21:47:50,094 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2023-11-22 21:47:50,095 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2023-11-22 21:47:50,095 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-22 21:47:50,095 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-22 21:47:50,095 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-22 21:47:50,095 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-22 21:47:50,095 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-22 21:47:50,096 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-22 21:47:50,096 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-22 21:47:50,096 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-11-22 21:47:50,096 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2023-11-22 21:47:50,096 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2023-11-22 21:47:50,096 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2023-11-22 21:47:50,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2023-11-22 21:47:50,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2023-11-22 21:47:50,097 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-11-22 21:47:50,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-11-22 21:47:50,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-22 21:47:50,098 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2023-11-22 21:47:50,099 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2023-11-22 21:47:50,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-22 21:47:50,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-22 21:47:50,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-22 21:47:50,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-22 21:47:50,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-22 21:47:50,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-22 21:47:50,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-22 21:47:50,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-22 21:47:50,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-11-22 21:47:50,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-11-22 21:47:50,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-11-22 21:47:50,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-11-22 21:47:50,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-11-22 21:47:50,102 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-22 21:47:50,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-22 21:47:50,434 INFO L241 CfgBuilder]: Building ICFG [2023-11-22 21:47:50,438 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-22 21:47:50,809 INFO L775 $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; [2023-11-22 21:47:50,809 INFO L775 $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)); [2023-11-22 21:47:50,809 INFO L775 $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; [2023-11-22 21:47:50,809 INFO L775 $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)); [2023-11-22 21:47:50,809 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L734: SUMMARY for call __CS_cs(); srcloc: null [2023-11-22 21:47:50,809 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L734-1: 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; [2023-11-22 21:47:50,810 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L734-1: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-11-22 21:47:53,272 INFO L282 CfgBuilder]: Performing block encoding [2023-11-22 21:47:53,325 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-22 21:47:53,325 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-22 21:47:53,326 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:47:53 BoogieIcfgContainer [2023-11-22 21:47:53,326 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-22 21:47:53,329 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-22 21:47:53,329 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-22 21:47:53,332 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-22 21:47:53,333 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 09:47:49" (1/3) ... [2023-11-22 21:47:53,333 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eabcf36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:47:53, skipping insertion in model container [2023-11-22 21:47:53,334 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:47:49" (2/3) ... [2023-11-22 21:47:53,335 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eabcf36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:47:53, skipping insertion in model container [2023-11-22 21:47:53,335 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:47:53" (3/3) ... [2023-11-22 21:47:53,337 INFO L112 eAbstractionObserver]: Analyzing ICFG cs_fib_longer-1.i [2023-11-22 21:47:53,353 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-22 21:47:53,354 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-22 21:47:53,402 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-22 21:47:53,408 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@666dbd43, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-22 21:47:53,409 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-22 21:47:53,413 INFO L276 IsEmpty]: Start isEmpty. Operand has 179 states, 106 states have (on average 1.349056603773585) internal successors, (143), 107 states have internal predecessors, (143), 67 states have call successors, (67), 4 states have call predecessors, (67), 4 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2023-11-22 21:47:53,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2023-11-22 21:47:53,446 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:47:53,447 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 21:47:53,448 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:47:53,454 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:47:53,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1363576071, now seen corresponding path program 1 times [2023-11-22 21:47:53,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:47:53,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265933948] [2023-11-22 21:47:53,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:47:53,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:47:54,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:54,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-22 21:47:54,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:54,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 21:47:54,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:54,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-22 21:47:54,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:54,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-22 21:47:54,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:54,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-22 21:47:54,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:54,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-22 21:47:54,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:54,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-22 21:47:54,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:54,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-22 21:47:54,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:54,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 21:47:54,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:54,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-22 21:47:54,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:54,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-22 21:47:54,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:54,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-22 21:47:54,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:54,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-22 21:47:54,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:54,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-22 21:47:54,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:54,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-22 21:47:54,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:54,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-22 21:47:54,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:54,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-22 21:47:54,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:54,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-22 21:47:54,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:54,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-22 21:47:54,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:54,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-22 21:47:54,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:54,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-22 21:47:54,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:54,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-11-22 21:47:54,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:54,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-22 21:47:54,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:54,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-11-22 21:47:54,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:54,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-11-22 21:47:54,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:54,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-22 21:47:54,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:54,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-11-22 21:47:54,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:54,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-11-22 21:47:54,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:54,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2023-11-22 21:47:54,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:54,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-11-22 21:47:54,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:54,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2023-11-22 21:47:54,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:54,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2023-11-22 21:47:54,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:54,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2023-11-22 21:47:54,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:54,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-11-22 21:47:54,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:54,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2023-11-22 21:47:54,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:54,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-11-22 21:47:54,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:54,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-11-22 21:47:54,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:54,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2023-11-22 21:47:54,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:54,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-11-22 21:47:54,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:54,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2023-11-22 21:47:54,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:54,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-11-22 21:47:54,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:54,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2023-11-22 21:47:54,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:54,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2023-11-22 21:47:54,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:54,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2023-11-22 21:47:54,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:54,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2023-11-22 21:47:54,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:54,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2023-11-22 21:47:54,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:54,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2023-11-22 21:47:54,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:54,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2023-11-22 21:47:54,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:54,894 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2023-11-22 21:47:54,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:47:54,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265933948] [2023-11-22 21:47:54,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265933948] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:47:54,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 21:47:54,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-22 21:47:54,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751641287] [2023-11-22 21:47:54,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:47:54,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 21:47:54,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:47:54,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 21:47:54,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 21:47:54,953 INFO L87 Difference]: Start difference. First operand has 179 states, 106 states have (on average 1.349056603773585) internal successors, (143), 107 states have internal predecessors, (143), 67 states have call successors, (67), 4 states have call predecessors, (67), 4 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2023-11-22 21:47:55,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:47:55,097 INFO L93 Difference]: Finished difference Result 360 states and 625 transitions. [2023-11-22 21:47:55,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 21:47:55,100 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 299 [2023-11-22 21:47:55,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:47:55,109 INFO L225 Difference]: With dead ends: 360 [2023-11-22 21:47:55,109 INFO L226 Difference]: Without dead ends: 180 [2023-11-22 21:47:55,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 21:47:55,118 INFO L413 NwaCegarLoop]: 263 mSDtfsCounter, 3 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-22 21:47:55,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 525 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-22 21:47:55,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2023-11-22 21:47:55,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 178. [2023-11-22 21:47:55,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 106 states have (on average 1.2830188679245282) internal successors, (136), 106 states have internal predecessors, (136), 67 states have call successors, (67), 4 states have call predecessors, (67), 4 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2023-11-22 21:47:55,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 270 transitions. [2023-11-22 21:47:55,188 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 270 transitions. Word has length 299 [2023-11-22 21:47:55,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:47:55,189 INFO L495 AbstractCegarLoop]: Abstraction has 178 states and 270 transitions. [2023-11-22 21:47:55,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2023-11-22 21:47:55,189 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 270 transitions. [2023-11-22 21:47:55,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2023-11-22 21:47:55,197 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:47:55,197 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 21:47:55,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-22 21:47:55,198 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:47:55,198 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:47:55,198 INFO L85 PathProgramCache]: Analyzing trace with hash 20336347, now seen corresponding path program 1 times [2023-11-22 21:47:55,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:47:55,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389819269] [2023-11-22 21:47:55,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:47:55,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:47:55,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:55,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-22 21:47:55,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:55,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-22 21:47:55,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:55,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-22 21:47:55,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:55,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-22 21:47:55,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:55,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-22 21:47:55,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:55,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-22 21:47:55,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:55,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-22 21:47:55,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:55,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-22 21:47:55,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:55,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-22 21:47:55,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:55,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-22 21:47:55,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:55,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-22 21:47:55,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:55,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-22 21:47:55,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:55,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-22 21:47:55,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:55,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-22 21:47:55,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:55,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-22 21:47:55,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:55,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-22 21:47:55,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:55,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-22 21:47:55,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:55,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-11-22 21:47:55,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:55,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-11-22 21:47:55,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:55,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-11-22 21:47:55,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:55,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-11-22 21:47:55,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:55,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-11-22 21:47:55,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:55,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-11-22 21:47:55,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:55,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-11-22 21:47:55,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:55,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-11-22 21:47:55,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:55,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-11-22 21:47:55,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:55,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-11-22 21:47:55,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:55,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-11-22 21:47:55,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:55,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-11-22 21:47:55,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:55,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2023-11-22 21:47:55,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:55,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-11-22 21:47:55,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:55,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-11-22 21:47:55,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:55,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-11-22 21:47:55,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:55,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-11-22 21:47:55,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:55,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2023-11-22 21:47:55,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:55,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2023-11-22 21:47:55,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:55,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2023-11-22 21:47:55,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:55,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2023-11-22 21:47:55,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:55,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2023-11-22 21:47:55,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:55,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2023-11-22 21:47:55,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:55,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2023-11-22 21:47:55,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:55,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2023-11-22 21:47:55,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:55,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2023-11-22 21:47:55,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:55,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2023-11-22 21:47:55,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:55,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2023-11-22 21:47:55,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:55,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2023-11-22 21:47:55,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:55,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2023-11-22 21:47:55,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:55,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2023-11-22 21:47:55,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:55,969 INFO L134 CoverageAnalysis]: Checked inductivity of 4513 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2023-11-22 21:47:55,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:47:55,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389819269] [2023-11-22 21:47:55,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389819269] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:47:55,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 21:47:55,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-22 21:47:55,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041763013] [2023-11-22 21:47:55,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:47:55,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 21:47:55,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:47:55,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 21:47:55,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 21:47:55,978 INFO L87 Difference]: Start difference. First operand 178 states and 270 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2023-11-22 21:47:56,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:47:56,036 INFO L93 Difference]: Finished difference Result 355 states and 540 transitions. [2023-11-22 21:47:56,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 21:47:56,037 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 302 [2023-11-22 21:47:56,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:47:56,039 INFO L225 Difference]: With dead ends: 355 [2023-11-22 21:47:56,039 INFO L226 Difference]: Without dead ends: 179 [2023-11-22 21:47:56,040 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 21:47:56,041 INFO L413 NwaCegarLoop]: 264 mSDtfsCounter, 0 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-22 21:47:56,042 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 526 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-22 21:47:56,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2023-11-22 21:47:56,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2023-11-22 21:47:56,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 107 states have (on average 1.280373831775701) internal successors, (137), 107 states have internal predecessors, (137), 67 states have call successors, (67), 4 states have call predecessors, (67), 4 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2023-11-22 21:47:56,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 271 transitions. [2023-11-22 21:47:56,065 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 271 transitions. Word has length 302 [2023-11-22 21:47:56,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:47:56,065 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 271 transitions. [2023-11-22 21:47:56,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2023-11-22 21:47:56,066 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 271 transitions. [2023-11-22 21:47:56,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2023-11-22 21:47:56,071 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:47:56,071 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 21:47:56,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-22 21:47:56,072 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:47:56,072 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:47:56,072 INFO L85 PathProgramCache]: Analyzing trace with hash 366030376, now seen corresponding path program 1 times [2023-11-22 21:47:56,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:47:56,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167108574] [2023-11-22 21:47:56,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:47:56,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:47:56,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:56,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 21:47:56,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:56,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-22 21:47:56,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:56,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-22 21:47:56,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:56,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-22 21:47:56,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:56,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 21:47:56,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:56,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 21:47:56,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:56,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-22 21:47:56,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:56,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-22 21:47:56,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:56,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-22 21:47:56,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:56,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-22 21:47:56,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:56,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-22 21:47:56,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:56,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-22 21:47:56,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:56,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-22 21:47:56,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:56,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-22 21:47:56,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:56,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-22 21:47:56,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:56,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-22 21:47:56,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:56,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-22 21:47:56,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:56,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-22 21:47:56,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:56,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-22 21:47:56,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:56,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-22 21:47:56,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:56,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-22 21:47:56,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:56,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-11-22 21:47:56,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:56,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-22 21:47:56,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:56,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-11-22 21:47:56,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:56,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-11-22 21:47:56,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:56,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-11-22 21:47:56,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:56,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-11-22 21:47:56,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:56,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2023-11-22 21:47:56,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:56,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2023-11-22 21:47:56,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:56,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2023-11-22 21:47:56,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:56,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-11-22 21:47:56,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:56,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-11-22 21:47:56,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:56,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-11-22 21:47:56,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:56,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2023-11-22 21:47:56,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:56,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2023-11-22 21:47:56,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:56,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2023-11-22 21:47:56,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:56,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-11-22 21:47:56,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:56,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2023-11-22 21:47:56,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:56,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2023-11-22 21:47:56,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:56,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2023-11-22 21:47:56,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:56,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2023-11-22 21:47:56,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:56,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2023-11-22 21:47:56,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:56,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2023-11-22 21:47:56,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:56,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2023-11-22 21:47:56,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:56,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2023-11-22 21:47:56,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:56,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2023-11-22 21:47:56,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:56,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2023-11-22 21:47:56,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:56,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2023-11-22 21:47:56,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:56,825 INFO L134 CoverageAnalysis]: Checked inductivity of 4514 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2023-11-22 21:47:56,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:47:56,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167108574] [2023-11-22 21:47:56,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167108574] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 21:47:56,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2013937053] [2023-11-22 21:47:56,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:47:56,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:47:56,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:47:56,832 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 21:47:56,854 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-22 21:47:57,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:57,630 INFO L262 TraceCheckSpWp]: Trace formula consists of 1491 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-22 21:47:57,644 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 21:47:57,699 INFO L134 CoverageAnalysis]: Checked inductivity of 4514 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2023-11-22 21:47:57,700 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 21:47:57,839 INFO L134 CoverageAnalysis]: Checked inductivity of 4514 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2023-11-22 21:47:57,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2013937053] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 21:47:57,840 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-22 21:47:57,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2023-11-22 21:47:57,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004519451] [2023-11-22 21:47:57,840 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-22 21:47:57,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-22 21:47:57,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:47:57,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-22 21:47:57,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-22 21:47:57,846 INFO L87 Difference]: Start difference. First operand 179 states and 271 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 1 states have call successors, (96), 2 states have call predecessors, (96), 2 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) [2023-11-22 21:47:57,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:47:57,927 INFO L93 Difference]: Finished difference Result 358 states and 544 transitions. [2023-11-22 21:47:57,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-22 21:47:57,928 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 1 states have call successors, (96), 2 states have call predecessors, (96), 2 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) Word has length 303 [2023-11-22 21:47:57,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:47:57,931 INFO L225 Difference]: With dead ends: 358 [2023-11-22 21:47:57,931 INFO L226 Difference]: Without dead ends: 181 [2023-11-22 21:47:57,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 704 GetRequests, 699 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-22 21:47:57,935 INFO L413 NwaCegarLoop]: 264 mSDtfsCounter, 0 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 788 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-22 21:47:57,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 788 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-22 21:47:57,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2023-11-22 21:47:57,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2023-11-22 21:47:57,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 109 states have (on average 1.275229357798165) internal successors, (139), 109 states have internal predecessors, (139), 67 states have call successors, (67), 4 states have call predecessors, (67), 4 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2023-11-22 21:47:57,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 273 transitions. [2023-11-22 21:47:57,970 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 273 transitions. Word has length 303 [2023-11-22 21:47:57,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:47:57,970 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 273 transitions. [2023-11-22 21:47:57,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 1 states have call successors, (96), 2 states have call predecessors, (96), 2 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) [2023-11-22 21:47:57,971 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 273 transitions. [2023-11-22 21:47:57,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2023-11-22 21:47:57,976 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:47:57,976 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 48, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 21:47:57,999 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-22 21:47:58,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:47:58,193 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:47:58,194 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:47:58,194 INFO L85 PathProgramCache]: Analyzing trace with hash -302876536, now seen corresponding path program 2 times [2023-11-22 21:47:58,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:47:58,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788696218] [2023-11-22 21:47:58,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:47:58,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:47:58,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:58,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 21:47:58,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:58,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-22 21:47:58,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:58,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-22 21:47:58,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:58,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-22 21:47:58,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:58,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-22 21:47:58,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:58,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-22 21:47:58,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:58,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-22 21:47:58,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:58,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 21:47:58,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:58,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-22 21:47:58,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:58,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-22 21:47:58,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:58,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-22 21:47:58,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:58,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-22 21:47:58,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:58,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-22 21:47:58,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:58,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-22 21:47:58,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:58,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-22 21:47:58,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:58,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-22 21:47:58,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:58,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-22 21:47:58,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:58,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-22 21:47:58,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:58,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-22 21:47:58,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:58,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-22 21:47:58,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:58,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-11-22 21:47:58,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:58,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-22 21:47:58,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:58,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-11-22 21:47:58,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:58,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-11-22 21:47:58,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:58,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-22 21:47:58,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:58,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-11-22 21:47:58,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:58,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-11-22 21:47:58,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:58,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2023-11-22 21:47:58,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:58,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-11-22 21:47:58,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:58,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2023-11-22 21:47:58,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:58,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2023-11-22 21:47:58,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:58,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2023-11-22 21:47:58,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:58,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-11-22 21:47:58,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:58,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2023-11-22 21:47:58,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:58,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-11-22 21:47:58,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:58,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-11-22 21:47:58,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:58,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2023-11-22 21:47:58,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:58,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-11-22 21:47:58,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:58,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2023-11-22 21:47:58,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:58,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-11-22 21:47:58,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:58,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2023-11-22 21:47:58,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:58,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2023-11-22 21:47:58,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:58,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2023-11-22 21:47:58,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:58,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2023-11-22 21:47:58,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:58,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2023-11-22 21:47:58,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:58,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2023-11-22 21:47:58,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:58,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2023-11-22 21:47:58,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:58,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2023-11-22 21:47:58,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:58,886 INFO L134 CoverageAnalysis]: Checked inductivity of 4519 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4518 trivial. 0 not checked. [2023-11-22 21:47:58,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:47:58,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788696218] [2023-11-22 21:47:58,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788696218] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 21:47:58,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [39694621] [2023-11-22 21:47:58,887 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-22 21:47:58,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:47:58,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:47:58,888 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 21:47:58,906 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-22 21:47:59,587 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-22 21:47:59,588 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-22 21:47:59,593 INFO L262 TraceCheckSpWp]: Trace formula consists of 747 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-22 21:47:59,606 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 21:48:00,318 INFO L134 CoverageAnalysis]: Checked inductivity of 4519 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4519 trivial. 0 not checked. [2023-11-22 21:48:00,319 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 21:48:00,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [39694621] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:48:00,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-22 21:48:00,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2023-11-22 21:48:00,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401941525] [2023-11-22 21:48:00,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:48:00,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-22 21:48:00,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:48:00,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-22 21:48:00,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-22 21:48:00,321 INFO L87 Difference]: Start difference. First operand 181 states and 273 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2023-11-22 21:48:00,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:48:00,413 INFO L93 Difference]: Finished difference Result 351 states and 534 transitions. [2023-11-22 21:48:00,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-22 21:48:00,414 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 305 [2023-11-22 21:48:00,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:48:00,422 INFO L225 Difference]: With dead ends: 351 [2023-11-22 21:48:00,423 INFO L226 Difference]: Without dead ends: 249 [2023-11-22 21:48:00,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 404 GetRequests, 399 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-22 21:48:00,426 INFO L413 NwaCegarLoop]: 263 mSDtfsCounter, 107 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 780 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-22 21:48:00,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 780 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-22 21:48:00,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2023-11-22 21:48:00,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 249. [2023-11-22 21:48:00,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 155 states have (on average 1.3548387096774193) internal successors, (210), 155 states have internal predecessors, (210), 85 states have call successors, (85), 8 states have call predecessors, (85), 8 states have return successors, (87), 85 states have call predecessors, (87), 85 states have call successors, (87) [2023-11-22 21:48:00,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 382 transitions. [2023-11-22 21:48:00,463 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 382 transitions. Word has length 305 [2023-11-22 21:48:00,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:48:00,463 INFO L495 AbstractCegarLoop]: Abstraction has 249 states and 382 transitions. [2023-11-22 21:48:00,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2023-11-22 21:48:00,464 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 382 transitions. [2023-11-22 21:48:00,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2023-11-22 21:48:00,469 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:48:00,469 INFO L195 NwaCegarLoop]: trace histogram [52, 52, 52, 4, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 21:48:00,487 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-22 21:48:00,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-11-22 21:48:00,688 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:48:00,688 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:48:00,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1764496240, now seen corresponding path program 1 times [2023-11-22 21:48:00,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:48:00,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669409699] [2023-11-22 21:48:00,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:48:00,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:48:01,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:01,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-22 21:48:01,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:01,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:48:01,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:01,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:48:01,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-22 21:48:02,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-22 21:48:02,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:48:02,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-22 21:48:02,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-22 21:48:02,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:48:02,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-22 21:48:02,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:48:02,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-22 21:48:02,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-22 21:48:02,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-22 21:48:02,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-22 21:48:02,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-22 21:48:02,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-22 21:48:02,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 21:48:02,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-22 21:48:02,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-22 21:48:02,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-22 21:48:02,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-22 21:48:02,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-11-22 21:48:02,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-22 21:48:02,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-11-22 21:48:02,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-11-22 21:48:02,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-11-22 21:48:02,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-22 21:48:02,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-11-22 21:48:02,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-11-22 21:48:02,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-11-22 21:48:02,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-11-22 21:48:02,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-11-22 21:48:02,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-11-22 21:48:02,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-11-22 21:48:02,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2023-11-22 21:48:02,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-11-22 21:48:02,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2023-11-22 21:48:02,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-11-22 21:48:02,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2023-11-22 21:48:02,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-11-22 21:48:02,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2023-11-22 21:48:02,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2023-11-22 21:48:02,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2023-11-22 21:48:02,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2023-11-22 21:48:02,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2023-11-22 21:48:02,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2023-11-22 21:48:02,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2023-11-22 21:48:02,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2023-11-22 21:48:02,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2023-11-22 21:48:02,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2023-11-22 21:48:02,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2023-11-22 21:48:02,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2023-11-22 21:48:02,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2023-11-22 21:48:02,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2023-11-22 21:48:02,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2023-11-22 21:48:02,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2023-11-22 21:48:02,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2023-11-22 21:48:02,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2023-11-22 21:48:02,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,266 INFO L134 CoverageAnalysis]: Checked inductivity of 5339 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5338 trivial. 0 not checked. [2023-11-22 21:48:02,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:48:02,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669409699] [2023-11-22 21:48:02,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669409699] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 21:48:02,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [836064248] [2023-11-22 21:48:02,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:48:02,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:48:02,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:48:02,269 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 21:48:02,290 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-22 21:48:03,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:03,199 INFO L262 TraceCheckSpWp]: Trace formula consists of 2138 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-22 21:48:03,206 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 21:48:03,262 INFO L134 CoverageAnalysis]: Checked inductivity of 5339 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5338 trivial. 0 not checked. [2023-11-22 21:48:03,265 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 21:48:03,459 INFO L134 CoverageAnalysis]: Checked inductivity of 5339 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5338 trivial. 0 not checked. [2023-11-22 21:48:03,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [836064248] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 21:48:03,459 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-22 21:48:03,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 3, 4] total 10 [2023-11-22 21:48:03,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922225757] [2023-11-22 21:48:03,460 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-22 21:48:03,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-22 21:48:03,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:48:03,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-22 21:48:03,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-22 21:48:03,466 INFO L87 Difference]: Start difference. First operand 249 states and 382 transitions. Second operand has 10 states, 10 states have (on average 11.9) internal successors, (119), 7 states have internal predecessors, (119), 2 states have call successors, (119), 5 states have call predecessors, (119), 2 states have return successors, (112), 2 states have call predecessors, (112), 2 states have call successors, (112) [2023-11-22 21:48:05,611 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:48:07,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:48:09,629 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:48:12,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:48:12,803 INFO L93 Difference]: Finished difference Result 546 states and 846 transitions. [2023-11-22 21:48:12,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-22 21:48:12,803 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.9) internal successors, (119), 7 states have internal predecessors, (119), 2 states have call successors, (119), 5 states have call predecessors, (119), 2 states have return successors, (112), 2 states have call predecessors, (112), 2 states have call successors, (112) Word has length 367 [2023-11-22 21:48:12,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:48:12,805 INFO L225 Difference]: With dead ends: 546 [2023-11-22 21:48:12,805 INFO L226 Difference]: Without dead ends: 305 [2023-11-22 21:48:12,807 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 854 GetRequests, 845 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2023-11-22 21:48:12,807 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 45 mSDsluCounter, 880 mSDsCounter, 0 mSdLazyCounter, 790 mSolverCounterSat, 78 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 1118 SdHoareTripleChecker+Invalid, 871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 790 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2023-11-22 21:48:12,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 1118 Invalid, 871 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 790 Invalid, 3 Unknown, 0 Unchecked, 8.9s Time] [2023-11-22 21:48:12,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2023-11-22 21:48:12,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 286. [2023-11-22 21:48:12,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 185 states have (on average 1.3567567567567567) internal successors, (251), 186 states have internal predecessors, (251), 91 states have call successors, (91), 8 states have call predecessors, (91), 9 states have return successors, (95), 91 states have call predecessors, (95), 91 states have call successors, (95) [2023-11-22 21:48:12,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 437 transitions. [2023-11-22 21:48:12,837 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 437 transitions. Word has length 367 [2023-11-22 21:48:12,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:48:12,837 INFO L495 AbstractCegarLoop]: Abstraction has 286 states and 437 transitions. [2023-11-22 21:48:12,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.9) internal successors, (119), 7 states have internal predecessors, (119), 2 states have call successors, (119), 5 states have call predecessors, (119), 2 states have return successors, (112), 2 states have call predecessors, (112), 2 states have call successors, (112) [2023-11-22 21:48:12,838 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 437 transitions. [2023-11-22 21:48:12,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2023-11-22 21:48:12,843 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:48:12,843 INFO L195 NwaCegarLoop]: trace histogram [52, 52, 52, 12, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 21:48:12,864 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-22 21:48:13,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:48:13,065 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:48:13,065 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:48:13,065 INFO L85 PathProgramCache]: Analyzing trace with hash -1139603341, now seen corresponding path program 2 times [2023-11-22 21:48:13,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:48:13,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853201881] [2023-11-22 21:48:13,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:48:13,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:48:13,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:14,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-22 21:48:14,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:14,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:48:14,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:14,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:48:14,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:15,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-22 21:48:15,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:15,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-22 21:48:15,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:15,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:48:15,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:15,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-22 21:48:15,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:15,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-22 21:48:15,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:15,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:48:15,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:15,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-22 21:48:15,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:15,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:48:15,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:15,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-22 21:48:15,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:15,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-22 21:48:15,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:15,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-22 21:48:15,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:15,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 21:48:15,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:15,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-22 21:48:15,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:15,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-22 21:48:15,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:15,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-22 21:48:15,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:15,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-22 21:48:15,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:15,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-11-22 21:48:15,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:15,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-22 21:48:15,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:15,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-11-22 21:48:15,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:15,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-11-22 21:48:15,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:15,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-11-22 21:48:15,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:15,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-22 21:48:15,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:15,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-11-22 21:48:15,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:15,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-11-22 21:48:15,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:15,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-11-22 21:48:15,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:15,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-11-22 21:48:15,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:15,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-11-22 21:48:15,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:15,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-11-22 21:48:15,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:15,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-11-22 21:48:15,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:15,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2023-11-22 21:48:15,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:15,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-11-22 21:48:15,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:15,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2023-11-22 21:48:15,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:15,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-11-22 21:48:15,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:15,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2023-11-22 21:48:15,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:15,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-11-22 21:48:15,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:15,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2023-11-22 21:48:15,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:15,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2023-11-22 21:48:15,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:15,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2023-11-22 21:48:15,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:15,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2023-11-22 21:48:15,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:15,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2023-11-22 21:48:15,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:15,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2023-11-22 21:48:15,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:15,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2023-11-22 21:48:15,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:15,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2023-11-22 21:48:15,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:15,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2023-11-22 21:48:15,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:15,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2023-11-22 21:48:15,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:15,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2023-11-22 21:48:15,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:15,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2023-11-22 21:48:15,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:15,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2023-11-22 21:48:15,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:15,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2023-11-22 21:48:15,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:15,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2023-11-22 21:48:15,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:15,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2023-11-22 21:48:15,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:15,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2023-11-22 21:48:15,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:15,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2023-11-22 21:48:15,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:15,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2023-11-22 21:48:15,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:15,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2023-11-22 21:48:15,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:15,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2023-11-22 21:48:15,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:15,494 INFO L134 CoverageAnalysis]: Checked inductivity of 5468 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5468 trivial. 0 not checked. [2023-11-22 21:48:15,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:48:15,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853201881] [2023-11-22 21:48:15,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853201881] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:48:15,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 21:48:15,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-22 21:48:15,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904189388] [2023-11-22 21:48:15,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:48:15,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-22 21:48:15,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:48:15,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-22 21:48:15,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-22 21:48:15,498 INFO L87 Difference]: Start difference. First operand 286 states and 437 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 4 states have internal predecessors, (85), 4 states have call successors, (56), 4 states have call predecessors, (56), 2 states have return successors, (56), 3 states have call predecessors, (56), 4 states have call successors, (56) [2023-11-22 21:48:17,564 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:48:19,607 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:48:21,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:48:23,635 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:48:25,642 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:48:30,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:48:30,982 INFO L93 Difference]: Finished difference Result 703 states and 1090 transitions. [2023-11-22 21:48:30,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-22 21:48:30,985 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 4 states have internal predecessors, (85), 4 states have call successors, (56), 4 states have call predecessors, (56), 2 states have return successors, (56), 3 states have call predecessors, (56), 4 states have call successors, (56) Word has length 385 [2023-11-22 21:48:30,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:48:30,989 INFO L225 Difference]: With dead ends: 703 [2023-11-22 21:48:30,989 INFO L226 Difference]: Without dead ends: 592 [2023-11-22 21:48:30,990 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2023-11-22 21:48:30,991 INFO L413 NwaCegarLoop]: 358 mSDtfsCounter, 372 mSDsluCounter, 620 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 344 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 978 SdHoareTripleChecker+Invalid, 1083 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 344 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.0s IncrementalHoareTripleChecker+Time [2023-11-22 21:48:30,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [431 Valid, 978 Invalid, 1083 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [344 Valid, 734 Invalid, 5 Unknown, 0 Unchecked, 13.0s Time] [2023-11-22 21:48:30,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2023-11-22 21:48:31,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 531. [2023-11-22 21:48:31,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 333 states have (on average 1.3603603603603605) internal successors, (453), 337 states have internal predecessors, (453), 177 states have call successors, (177), 16 states have call predecessors, (177), 20 states have return successors, (193), 177 states have call predecessors, (193), 177 states have call successors, (193) [2023-11-22 21:48:31,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 823 transitions. [2023-11-22 21:48:31,070 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 823 transitions. Word has length 385 [2023-11-22 21:48:31,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:48:31,071 INFO L495 AbstractCegarLoop]: Abstraction has 531 states and 823 transitions. [2023-11-22 21:48:31,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 4 states have internal predecessors, (85), 4 states have call successors, (56), 4 states have call predecessors, (56), 2 states have return successors, (56), 3 states have call predecessors, (56), 4 states have call successors, (56) [2023-11-22 21:48:31,071 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 823 transitions. [2023-11-22 21:48:31,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2023-11-22 21:48:31,078 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:48:31,079 INFO L195 NwaCegarLoop]: trace histogram [52, 52, 52, 12, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 21:48:31,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-22 21:48:31,079 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:48:31,080 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:48:31,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1138292141, now seen corresponding path program 1 times [2023-11-22 21:48:31,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:48:31,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546780527] [2023-11-22 21:48:31,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:48:31,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:48:31,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:32,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-22 21:48:32,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:32,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:48:32,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:32,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:48:32,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:32,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-22 21:48:32,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:32,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-22 21:48:32,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:32,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:48:32,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:32,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-22 21:48:32,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:32,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-22 21:48:32,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:32,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:48:32,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:32,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-22 21:48:32,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:32,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:48:32,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:32,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-22 21:48:32,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:32,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-22 21:48:32,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:32,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-22 21:48:32,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:32,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 21:48:32,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:32,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-22 21:48:32,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:32,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-22 21:48:32,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:32,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-22 21:48:32,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:32,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-22 21:48:32,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:32,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-11-22 21:48:32,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:32,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-22 21:48:32,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:32,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-11-22 21:48:32,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:32,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-11-22 21:48:32,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:32,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-11-22 21:48:32,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:32,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-22 21:48:32,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:32,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-11-22 21:48:32,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:32,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-11-22 21:48:32,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:32,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-11-22 21:48:32,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:32,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-11-22 21:48:32,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:32,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-11-22 21:48:32,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:32,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-11-22 21:48:32,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:32,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-11-22 21:48:32,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:32,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2023-11-22 21:48:32,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:32,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-11-22 21:48:32,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:32,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2023-11-22 21:48:32,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:32,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-11-22 21:48:32,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:32,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2023-11-22 21:48:32,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:32,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-11-22 21:48:32,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:32,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2023-11-22 21:48:32,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:32,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2023-11-22 21:48:32,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:32,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2023-11-22 21:48:32,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:32,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2023-11-22 21:48:32,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:32,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2023-11-22 21:48:32,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:32,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2023-11-22 21:48:32,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:32,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2023-11-22 21:48:32,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:32,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2023-11-22 21:48:32,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:32,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2023-11-22 21:48:32,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:33,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2023-11-22 21:48:33,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:33,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2023-11-22 21:48:33,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:33,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2023-11-22 21:48:33,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:33,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2023-11-22 21:48:33,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:33,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2023-11-22 21:48:33,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:33,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2023-11-22 21:48:33,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:33,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2023-11-22 21:48:33,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:33,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2023-11-22 21:48:33,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:33,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2023-11-22 21:48:33,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:33,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2023-11-22 21:48:33,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:33,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2023-11-22 21:48:33,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:33,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2023-11-22 21:48:33,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:33,055 INFO L134 CoverageAnalysis]: Checked inductivity of 5468 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5468 trivial. 0 not checked. [2023-11-22 21:48:33,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:48:33,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546780527] [2023-11-22 21:48:33,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546780527] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:48:33,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 21:48:33,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-22 21:48:33,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352579163] [2023-11-22 21:48:33,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:48:33,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-22 21:48:33,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:48:33,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-22 21:48:33,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-22 21:48:33,059 INFO L87 Difference]: Start difference. First operand 531 states and 823 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 4 states have internal predecessors, (85), 4 states have call successors, (56), 4 states have call predecessors, (56), 2 states have return successors, (56), 3 states have call predecessors, (56), 4 states have call successors, (56) [2023-11-22 21:48:35,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:48:37,140 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:48:39,149 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:48:41,158 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:48:43,165 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:48:48,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:48:48,688 INFO L93 Difference]: Finished difference Result 1016 states and 1572 transitions. [2023-11-22 21:48:48,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-22 21:48:48,689 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 4 states have internal predecessors, (85), 4 states have call successors, (56), 4 states have call predecessors, (56), 2 states have return successors, (56), 3 states have call predecessors, (56), 4 states have call successors, (56) Word has length 385 [2023-11-22 21:48:48,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:48:48,693 INFO L225 Difference]: With dead ends: 1016 [2023-11-22 21:48:48,693 INFO L226 Difference]: Without dead ends: 491 [2023-11-22 21:48:48,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2023-11-22 21:48:48,696 INFO L413 NwaCegarLoop]: 365 mSDtfsCounter, 356 mSDsluCounter, 639 mSDsCounter, 0 mSdLazyCounter, 763 mSolverCounterSat, 253 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 415 SdHoareTripleChecker+Valid, 1004 SdHoareTripleChecker+Invalid, 1021 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 253 IncrementalHoareTripleChecker+Valid, 763 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2023-11-22 21:48:48,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [415 Valid, 1004 Invalid, 1021 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [253 Valid, 763 Invalid, 5 Unknown, 0 Unchecked, 13.2s Time] [2023-11-22 21:48:48,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2023-11-22 21:48:48,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 453. [2023-11-22 21:48:48,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 282 states have (on average 1.2765957446808511) internal successors, (360), 284 states have internal predecessors, (360), 153 states have call successors, (153), 15 states have call predecessors, (153), 17 states have return successors, (161), 153 states have call predecessors, (161), 153 states have call successors, (161) [2023-11-22 21:48:48,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 674 transitions. [2023-11-22 21:48:48,748 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 674 transitions. Word has length 385 [2023-11-22 21:48:48,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:48:48,749 INFO L495 AbstractCegarLoop]: Abstraction has 453 states and 674 transitions. [2023-11-22 21:48:48,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 4 states have internal predecessors, (85), 4 states have call successors, (56), 4 states have call predecessors, (56), 2 states have return successors, (56), 3 states have call predecessors, (56), 4 states have call successors, (56) [2023-11-22 21:48:48,749 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 674 transitions. [2023-11-22 21:48:48,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2023-11-22 21:48:48,753 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:48:48,754 INFO L195 NwaCegarLoop]: trace histogram [52, 52, 52, 12, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 21:48:48,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-22 21:48:48,754 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:48:48,754 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:48:48,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1781107661, now seen corresponding path program 1 times [2023-11-22 21:48:48,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:48:48,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275280791] [2023-11-22 21:48:48,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:48:48,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:48:49,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:49,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-22 21:48:49,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:49,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:48:49,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:49,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:48:49,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:50,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-22 21:48:50,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:50,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-22 21:48:50,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:50,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:48:50,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:50,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-22 21:48:50,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:50,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-22 21:48:50,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:50,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:48:50,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:50,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-22 21:48:50,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:50,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:48:50,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:50,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-22 21:48:50,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:50,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-22 21:48:50,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:50,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-22 21:48:50,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:50,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 21:48:50,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:50,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-22 21:48:50,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:50,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-22 21:48:50,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:50,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-22 21:48:50,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:50,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-22 21:48:50,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:50,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-11-22 21:48:50,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:50,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-22 21:48:50,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:50,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-11-22 21:48:50,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:50,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-11-22 21:48:50,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:50,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-11-22 21:48:50,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:50,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-22 21:48:50,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:50,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-11-22 21:48:50,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:50,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-11-22 21:48:50,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:50,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-11-22 21:48:50,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:50,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-11-22 21:48:50,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:50,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-11-22 21:48:50,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:50,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-11-22 21:48:50,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:50,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-11-22 21:48:50,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:50,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2023-11-22 21:48:50,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:50,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-11-22 21:48:50,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:50,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2023-11-22 21:48:50,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:50,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-11-22 21:48:50,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:50,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2023-11-22 21:48:50,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:50,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-11-22 21:48:50,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:50,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2023-11-22 21:48:50,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:50,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2023-11-22 21:48:50,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:50,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2023-11-22 21:48:50,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:50,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2023-11-22 21:48:50,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:50,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2023-11-22 21:48:50,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:50,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2023-11-22 21:48:50,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:50,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2023-11-22 21:48:50,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:50,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2023-11-22 21:48:50,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:50,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2023-11-22 21:48:50,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:50,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2023-11-22 21:48:50,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:50,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2023-11-22 21:48:50,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:50,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2023-11-22 21:48:50,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:50,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2023-11-22 21:48:50,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:50,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2023-11-22 21:48:50,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:50,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2023-11-22 21:48:50,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:50,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2023-11-22 21:48:50,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:50,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2023-11-22 21:48:50,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:50,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2023-11-22 21:48:50,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:50,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2023-11-22 21:48:50,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:50,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2023-11-22 21:48:50,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:50,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2023-11-22 21:48:50,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:50,397 INFO L134 CoverageAnalysis]: Checked inductivity of 5468 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 5356 trivial. 0 not checked. [2023-11-22 21:48:50,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:48:50,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275280791] [2023-11-22 21:48:50,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275280791] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 21:48:50,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [623548634] [2023-11-22 21:48:50,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:48:50,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:48:50,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:48:50,399 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 21:48:50,408 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-22 21:48:51,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:51,433 INFO L262 TraceCheckSpWp]: Trace formula consists of 2483 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-22 21:48:51,441 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 21:48:51,542 INFO L134 CoverageAnalysis]: Checked inductivity of 5468 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 5356 trivial. 0 not checked. [2023-11-22 21:48:51,543 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 21:48:51,797 INFO L134 CoverageAnalysis]: Checked inductivity of 5468 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 5356 trivial. 0 not checked. [2023-11-22 21:48:51,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [623548634] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 21:48:51,798 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-22 21:48:51,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6, 7] total 13 [2023-11-22 21:48:51,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473483650] [2023-11-22 21:48:51,798 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-22 21:48:51,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-22 21:48:51,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:48:51,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-22 21:48:51,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2023-11-22 21:48:51,801 INFO L87 Difference]: Start difference. First operand 453 states and 674 transitions. Second operand has 13 states, 13 states have (on average 10.384615384615385) internal successors, (135), 10 states have internal predecessors, (135), 2 states have call successors, (119), 5 states have call predecessors, (119), 2 states have return successors, (112), 2 states have call predecessors, (112), 2 states have call successors, (112) [2023-11-22 21:48:53,920 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:48:55,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:48:57,935 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:48:59,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:48:59,839 INFO L93 Difference]: Finished difference Result 928 states and 1394 transitions. [2023-11-22 21:48:59,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-22 21:48:59,840 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.384615384615385) internal successors, (135), 10 states have internal predecessors, (135), 2 states have call successors, (119), 5 states have call predecessors, (119), 2 states have return successors, (112), 2 states have call predecessors, (112), 2 states have call successors, (112) Word has length 385 [2023-11-22 21:48:59,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:48:59,843 INFO L225 Difference]: With dead ends: 928 [2023-11-22 21:48:59,844 INFO L226 Difference]: Without dead ends: 501 [2023-11-22 21:48:59,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 893 GetRequests, 878 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2023-11-22 21:48:59,846 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 51 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 147 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 730 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2023-11-22 21:48:59,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 730 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 466 Invalid, 3 Unknown, 0 Unchecked, 7.7s Time] [2023-11-22 21:48:59,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2023-11-22 21:48:59,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 471. [2023-11-22 21:48:59,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 300 states have (on average 1.27) internal successors, (381), 302 states have internal predecessors, (381), 153 states have call successors, (153), 15 states have call predecessors, (153), 17 states have return successors, (161), 153 states have call predecessors, (161), 153 states have call successors, (161) [2023-11-22 21:48:59,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 695 transitions. [2023-11-22 21:48:59,892 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 695 transitions. Word has length 385 [2023-11-22 21:48:59,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:48:59,892 INFO L495 AbstractCegarLoop]: Abstraction has 471 states and 695 transitions. [2023-11-22 21:48:59,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.384615384615385) internal successors, (135), 10 states have internal predecessors, (135), 2 states have call successors, (119), 5 states have call predecessors, (119), 2 states have return successors, (112), 2 states have call predecessors, (112), 2 states have call successors, (112) [2023-11-22 21:48:59,893 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 695 transitions. [2023-11-22 21:48:59,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2023-11-22 21:48:59,896 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:48:59,896 INFO L195 NwaCegarLoop]: trace histogram [52, 52, 52, 21, 7, 7, 7, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 21:48:59,916 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-22 21:49:00,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:49:00,109 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:49:00,109 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:49:00,109 INFO L85 PathProgramCache]: Analyzing trace with hash -541491882, now seen corresponding path program 2 times [2023-11-22 21:49:00,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:49:00,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157245600] [2023-11-22 21:49:00,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:49:00,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:49:00,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:01,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-22 21:49:01,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:01,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:49:01,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:01,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:49:01,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:02,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-22 21:49:02,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:02,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-22 21:49:02,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:02,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:49:02,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:02,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-22 21:49:02,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:02,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-22 21:49:02,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:02,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:49:02,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:02,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-22 21:49:02,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:02,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:49:02,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:02,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 21:49:02,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:02,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-22 21:49:02,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:02,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-22 21:49:02,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:02,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-22 21:49:02,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:02,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-22 21:49:02,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:02,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-11-22 21:49:02,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:02,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-22 21:49:02,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:02,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-11-22 21:49:02,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:02,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-11-22 21:49:02,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:02,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-11-22 21:49:02,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:02,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-22 21:49:02,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:02,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-11-22 21:49:02,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:02,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-11-22 21:49:02,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:02,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-11-22 21:49:02,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:02,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-11-22 21:49:02,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:02,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-11-22 21:49:02,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:02,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-11-22 21:49:02,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:02,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-11-22 21:49:02,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:02,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2023-11-22 21:49:02,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:02,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-11-22 21:49:02,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:02,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2023-11-22 21:49:02,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:02,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-11-22 21:49:02,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:02,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2023-11-22 21:49:02,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:02,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-11-22 21:49:02,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:02,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2023-11-22 21:49:02,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:02,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2023-11-22 21:49:02,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:02,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2023-11-22 21:49:02,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:02,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2023-11-22 21:49:02,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:02,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2023-11-22 21:49:02,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:02,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2023-11-22 21:49:02,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:02,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2023-11-22 21:49:02,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:02,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2023-11-22 21:49:02,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:02,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2023-11-22 21:49:02,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:02,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2023-11-22 21:49:02,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:02,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2023-11-22 21:49:02,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:02,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2023-11-22 21:49:02,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:02,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2023-11-22 21:49:02,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:02,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2023-11-22 21:49:02,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:02,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2023-11-22 21:49:02,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:02,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2023-11-22 21:49:02,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:02,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2023-11-22 21:49:02,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:02,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2023-11-22 21:49:02,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:02,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2023-11-22 21:49:02,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:02,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2023-11-22 21:49:02,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:02,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2023-11-22 21:49:02,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:02,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2023-11-22 21:49:02,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:02,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 389 [2023-11-22 21:49:02,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:02,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 395 [2023-11-22 21:49:02,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:02,498 INFO L134 CoverageAnalysis]: Checked inductivity of 5759 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 5756 trivial. 0 not checked. [2023-11-22 21:49:02,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:49:02,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157245600] [2023-11-22 21:49:02,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157245600] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 21:49:02,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1178463396] [2023-11-22 21:49:02,499 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-22 21:49:02,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:49:02,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:49:02,505 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 21:49:02,523 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-22 21:49:28,531 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-22 21:49:28,531 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-22 21:49:28,557 INFO L262 TraceCheckSpWp]: Trace formula consists of 2828 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-22 21:49:28,565 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 21:49:28,753 INFO L134 CoverageAnalysis]: Checked inductivity of 5759 backedges. 768 proven. 4 refuted. 0 times theorem prover too weak. 4987 trivial. 0 not checked. [2023-11-22 21:49:28,753 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 21:49:29,236 INFO L134 CoverageAnalysis]: Checked inductivity of 5759 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 5755 trivial. 0 not checked. [2023-11-22 21:49:29,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1178463396] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 21:49:29,237 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-22 21:49:29,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 6, 5] total 15 [2023-11-22 21:49:29,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794690834] [2023-11-22 21:49:29,237 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-22 21:49:29,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-22 21:49:29,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:49:29,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-22 21:49:29,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2023-11-22 21:49:29,240 INFO L87 Difference]: Start difference. First operand 471 states and 695 transitions. Second operand has 15 states, 15 states have (on average 7.733333333333333) internal successors, (116), 12 states have internal predecessors, (116), 9 states have call successors, (114), 7 states have call predecessors, (114), 7 states have return successors, (113), 7 states have call predecessors, (113), 9 states have call successors, (113) [2023-11-22 21:49:31,304 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:49:33,327 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:49:35,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:49:37,388 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:49:39,396 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:49:43,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:49:43,740 INFO L93 Difference]: Finished difference Result 903 states and 1374 transitions. [2023-11-22 21:49:43,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-22 21:49:43,741 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.733333333333333) internal successors, (116), 12 states have internal predecessors, (116), 9 states have call successors, (114), 7 states have call predecessors, (114), 7 states have return successors, (113), 7 states have call predecessors, (113), 9 states have call successors, (113) Word has length 403 [2023-11-22 21:49:43,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:49:43,744 INFO L225 Difference]: With dead ends: 903 [2023-11-22 21:49:43,744 INFO L226 Difference]: Without dead ends: 484 [2023-11-22 21:49:43,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 947 GetRequests, 922 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=191, Invalid=511, Unknown=0, NotChecked=0, Total=702 [2023-11-22 21:49:43,747 INFO L413 NwaCegarLoop]: 261 mSDtfsCounter, 573 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 728 mSolverCounterSat, 698 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 591 SdHoareTripleChecker+Valid, 938 SdHoareTripleChecker+Invalid, 1431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 698 IncrementalHoareTripleChecker+Valid, 728 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time [2023-11-22 21:49:43,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [591 Valid, 938 Invalid, 1431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [698 Valid, 728 Invalid, 5 Unknown, 0 Unchecked, 12.0s Time] [2023-11-22 21:49:43,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2023-11-22 21:49:43,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 421. [2023-11-22 21:49:43,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 281 states have (on average 1.3238434163701067) internal successors, (372), 283 states have internal predecessors, (372), 115 states have call successors, (115), 22 states have call predecessors, (115), 24 states have return successors, (131), 115 states have call predecessors, (131), 115 states have call successors, (131) [2023-11-22 21:49:43,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 618 transitions. [2023-11-22 21:49:43,833 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 618 transitions. Word has length 403 [2023-11-22 21:49:43,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:49:43,834 INFO L495 AbstractCegarLoop]: Abstraction has 421 states and 618 transitions. [2023-11-22 21:49:43,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.733333333333333) internal successors, (116), 12 states have internal predecessors, (116), 9 states have call successors, (114), 7 states have call predecessors, (114), 7 states have return successors, (113), 7 states have call predecessors, (113), 9 states have call successors, (113) [2023-11-22 21:49:43,834 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 618 transitions. [2023-11-22 21:49:43,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2023-11-22 21:49:43,838 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:49:43,839 INFO L195 NwaCegarLoop]: trace histogram [52, 52, 52, 21, 7, 7, 7, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 21:49:43,889 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-22 21:49:44,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:49:44,065 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:49:44,065 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:49:44,065 INFO L85 PathProgramCache]: Analyzing trace with hash -1302896492, now seen corresponding path program 1 times [2023-11-22 21:49:44,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:49:44,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005169697] [2023-11-22 21:49:44,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:49:44,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:49:45,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:48,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-22 21:49:48,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:48,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:49:48,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:48,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:49:48,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:49,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-22 21:49:49,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:49,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-22 21:49:49,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:49,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:49:49,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:49,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-22 21:49:49,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:49,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-22 21:49:49,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:49,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:49:49,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:49,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-22 21:49:49,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:49,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:49:49,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:49,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 21:49:49,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:49,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-22 21:49:49,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:49,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-22 21:49:49,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:49,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-22 21:49:49,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:49,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-22 21:49:49,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:49,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-11-22 21:49:49,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:49,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-22 21:49:49,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:49,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-11-22 21:49:49,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:49,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-11-22 21:49:49,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:49,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-11-22 21:49:49,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:49,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-22 21:49:49,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:49,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-11-22 21:49:49,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:49,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-11-22 21:49:49,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:49,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-11-22 21:49:49,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:49,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-11-22 21:49:49,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:49,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-11-22 21:49:49,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:49,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-11-22 21:49:49,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:49,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-11-22 21:49:49,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:49,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2023-11-22 21:49:49,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:49,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-11-22 21:49:49,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:49,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2023-11-22 21:49:49,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:49,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-11-22 21:49:49,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:49,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2023-11-22 21:49:49,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:49,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-11-22 21:49:49,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:49,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2023-11-22 21:49:49,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:49,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2023-11-22 21:49:49,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:49,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2023-11-22 21:49:49,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:49,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2023-11-22 21:49:49,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:49,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2023-11-22 21:49:49,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:49,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2023-11-22 21:49:49,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:49,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2023-11-22 21:49:49,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:49,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2023-11-22 21:49:49,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:49,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2023-11-22 21:49:49,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:49,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2023-11-22 21:49:49,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:49,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2023-11-22 21:49:49,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:49,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2023-11-22 21:49:49,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:49,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2023-11-22 21:49:49,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:49,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2023-11-22 21:49:49,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:49,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2023-11-22 21:49:49,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:49,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2023-11-22 21:49:49,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:49,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2023-11-22 21:49:49,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:49,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2023-11-22 21:49:49,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:49,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2023-11-22 21:49:49,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:49,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2023-11-22 21:49:49,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:49,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2023-11-22 21:49:49,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:49,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2023-11-22 21:49:49,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:49,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 389 [2023-11-22 21:49:49,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:49,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 395 [2023-11-22 21:49:49,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:49,761 INFO L134 CoverageAnalysis]: Checked inductivity of 5759 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 5756 trivial. 0 not checked. [2023-11-22 21:49:49,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:49:49,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005169697] [2023-11-22 21:49:49,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005169697] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 21:49:49,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1226027778] [2023-11-22 21:49:49,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:49:49,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:49:49,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:49:49,763 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 21:49:49,772 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-22 21:49:51,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:51,026 INFO L262 TraceCheckSpWp]: Trace formula consists of 2914 conjuncts, 31 conjunts are in the unsatisfiable core [2023-11-22 21:49:51,037 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 21:49:51,341 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 13 treesize of output 9 [2023-11-22 21:49:55,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:49:55,916 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 21:49:55,917 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 15 [2023-11-22 21:49:58,078 INFO L349 Elim1Store]: treesize reduction 33, result has 25.0 percent of original size [2023-11-22 21:49:58,079 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2023-11-22 21:50:15,379 INFO L134 CoverageAnalysis]: Checked inductivity of 5759 backedges. 808 proven. 4 refuted. 0 times theorem prover too weak. 4947 trivial. 0 not checked. [2023-11-22 21:50:15,380 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 21:50:15,627 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 23 [2023-11-22 21:50:15,633 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 31 [2023-11-22 21:50:16,099 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2023-11-22 21:50:16,104 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 22 [2023-11-22 21:50:16,191 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2023-11-22 21:50:16,197 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 22 [2023-11-22 21:50:16,302 INFO L134 CoverageAnalysis]: Checked inductivity of 5759 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 5755 trivial. 0 not checked. [2023-11-22 21:50:16,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1226027778] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 21:50:16,303 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-22 21:50:16,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 9] total 33 [2023-11-22 21:50:16,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209904417] [2023-11-22 21:50:16,303 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-22 21:50:16,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-11-22 21:50:16,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:50:16,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-11-22 21:50:16,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=911, Unknown=2, NotChecked=0, Total=1056 [2023-11-22 21:50:16,306 INFO L87 Difference]: Start difference. First operand 421 states and 618 transitions. Second operand has 33 states, 31 states have (on average 5.161290322580645) internal successors, (160), 30 states have internal predecessors, (160), 16 states have call successors, (121), 12 states have call predecessors, (121), 13 states have return successors, (121), 16 states have call predecessors, (121), 16 states have call successors, (121) [2023-11-22 21:50:18,470 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:50:20,482 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:50:22,491 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:50:24,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:50:26,540 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:50:28,545 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:50:30,575 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:50:32,591 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:50:34,603 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:50:36,612 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:50:38,618 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:50:40,626 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:50:42,634 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 21:50:44,641 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:50:46,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:50:48,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:50:50,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:50:52,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:50:54,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:50:56,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:50:58,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:51:00,790 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:51:02,797 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:51:10,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:51:10,725 INFO L93 Difference]: Finished difference Result 831 states and 1258 transitions. [2023-11-22 21:51:10,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-22 21:51:10,726 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 31 states have (on average 5.161290322580645) internal successors, (160), 30 states have internal predecessors, (160), 16 states have call successors, (121), 12 states have call predecessors, (121), 13 states have return successors, (121), 16 states have call predecessors, (121), 16 states have call successors, (121) Word has length 403 [2023-11-22 21:51:10,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:51:10,728 INFO L225 Difference]: With dead ends: 831 [2023-11-22 21:51:10,729 INFO L226 Difference]: Without dead ends: 502 [2023-11-22 21:51:10,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 956 GetRequests, 899 SyntacticMatches, 6 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 795 ImplicationChecksByTransitivity, 27.5s TimeCoverageRelationStatistics Valid=530, Invalid=2224, Unknown=2, NotChecked=0, Total=2756 [2023-11-22 21:51:10,731 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 1153 mSDsluCounter, 1792 mSDsCounter, 0 mSdLazyCounter, 2327 mSolverCounterSat, 1195 mSolverCounterUnsat, 23 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 50.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1153 SdHoareTripleChecker+Valid, 2007 SdHoareTripleChecker+Invalid, 3545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1195 IncrementalHoareTripleChecker+Valid, 2327 IncrementalHoareTripleChecker+Invalid, 23 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50.9s IncrementalHoareTripleChecker+Time [2023-11-22 21:51:10,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1153 Valid, 2007 Invalid, 3545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1195 Valid, 2327 Invalid, 23 Unknown, 0 Unchecked, 50.9s Time] [2023-11-22 21:51:10,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2023-11-22 21:51:10,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 445. [2023-11-22 21:51:10,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 297 states have (on average 1.32996632996633) internal successors, (395), 299 states have internal predecessors, (395), 121 states have call successors, (121), 22 states have call predecessors, (121), 26 states have return successors, (145), 123 states have call predecessors, (145), 121 states have call successors, (145) [2023-11-22 21:51:10,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 661 transitions. [2023-11-22 21:51:10,801 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 661 transitions. Word has length 403 [2023-11-22 21:51:10,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:51:10,801 INFO L495 AbstractCegarLoop]: Abstraction has 445 states and 661 transitions. [2023-11-22 21:51:10,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 31 states have (on average 5.161290322580645) internal successors, (160), 30 states have internal predecessors, (160), 16 states have call successors, (121), 12 states have call predecessors, (121), 13 states have return successors, (121), 16 states have call predecessors, (121), 16 states have call successors, (121) [2023-11-22 21:51:10,802 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 661 transitions. [2023-11-22 21:51:10,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 456 [2023-11-22 21:51:10,806 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:51:10,806 INFO L195 NwaCegarLoop]: trace histogram [55, 55, 55, 21, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 21:51:10,831 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-22 21:51:11,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:51:11,020 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:51:11,020 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:51:11,020 INFO L85 PathProgramCache]: Analyzing trace with hash 800855870, now seen corresponding path program 1 times [2023-11-22 21:51:11,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:51:11,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005364088] [2023-11-22 21:51:11,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:51:11,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:51:11,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:14,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-22 21:51:14,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:14,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:51:14,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:14,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:51:14,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:14,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-22 21:51:14,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:14,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-22 21:51:14,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:14,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:51:14,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:14,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-22 21:51:14,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:14,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:51:14,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:14,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:51:14,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:14,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-22 21:51:14,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:14,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:51:14,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:14,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:51:14,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:14,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-22 21:51:14,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:14,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-22 21:51:14,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:14,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:51:14,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:14,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-22 21:51:14,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:14,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-22 21:51:14,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:14,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:51:14,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:14,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-22 21:51:14,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:14,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:51:14,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:14,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-11-22 21:51:14,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:14,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-11-22 21:51:14,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:14,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2023-11-22 21:51:14,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:14,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-11-22 21:51:14,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:14,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2023-11-22 21:51:14,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:14,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2023-11-22 21:51:14,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:14,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2023-11-22 21:51:14,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:14,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-11-22 21:51:14,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:14,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2023-11-22 21:51:14,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:14,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-11-22 21:51:14,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:14,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-11-22 21:51:14,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:14,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2023-11-22 21:51:14,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:14,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-11-22 21:51:14,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:14,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2023-11-22 21:51:14,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:14,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-11-22 21:51:14,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:14,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2023-11-22 21:51:14,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:14,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2023-11-22 21:51:14,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:14,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2023-11-22 21:51:14,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:14,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2023-11-22 21:51:14,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:14,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2023-11-22 21:51:14,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:14,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2023-11-22 21:51:14,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:14,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2023-11-22 21:51:14,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:14,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2023-11-22 21:51:14,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:14,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2023-11-22 21:51:14,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:14,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2023-11-22 21:51:14,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:14,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2023-11-22 21:51:14,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:14,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2023-11-22 21:51:14,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:14,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2023-11-22 21:51:14,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:14,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2023-11-22 21:51:14,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:14,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2023-11-22 21:51:14,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:14,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2023-11-22 21:51:14,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:14,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2023-11-22 21:51:14,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:14,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2023-11-22 21:51:14,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:14,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2023-11-22 21:51:14,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:14,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2023-11-22 21:51:14,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:14,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2023-11-22 21:51:14,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:14,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2023-11-22 21:51:14,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:14,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 387 [2023-11-22 21:51:14,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:14,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2023-11-22 21:51:14,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:14,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2023-11-22 21:51:14,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:14,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2023-11-22 21:51:14,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:14,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 411 [2023-11-22 21:51:14,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:14,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 417 [2023-11-22 21:51:14,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:14,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2023-11-22 21:51:14,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:14,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 429 [2023-11-22 21:51:14,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:14,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 435 [2023-11-22 21:51:14,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:14,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 441 [2023-11-22 21:51:14,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:14,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2023-11-22 21:51:14,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:14,925 INFO L134 CoverageAnalysis]: Checked inductivity of 6488 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 6460 trivial. 0 not checked. [2023-11-22 21:51:14,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:51:14,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005364088] [2023-11-22 21:51:14,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005364088] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 21:51:14,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [346293362] [2023-11-22 21:51:14,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:51:14,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:51:14,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:51:14,928 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 21:51:14,933 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-22 21:51:16,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:16,269 INFO L262 TraceCheckSpWp]: Trace formula consists of 3566 conjuncts, 42 conjunts are in the unsatisfiable core [2023-11-22 21:51:16,281 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 21:51:16,287 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 5 [2023-11-22 21:51:16,369 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-11-22 21:51:16,467 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 1 [2023-11-22 21:51:16,502 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-11-22 21:51:16,773 INFO L134 CoverageAnalysis]: Checked inductivity of 6488 backedges. 1344 proven. 33 refuted. 0 times theorem prover too weak. 5111 trivial. 0 not checked. [2023-11-22 21:51:16,773 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 21:51:16,969 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2023-11-22 21:51:17,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [346293362] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 21:51:17,594 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-22 21:51:17,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 20 [2023-11-22 21:51:17,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211864991] [2023-11-22 21:51:17,594 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-22 21:51:17,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-22 21:51:17,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:51:17,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-22 21:51:17,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=533, Unknown=0, NotChecked=0, Total=650 [2023-11-22 21:51:17,597 INFO L87 Difference]: Start difference. First operand 445 states and 661 transitions. Second operand has 20 states, 20 states have (on average 7.25) internal successors, (145), 17 states have internal predecessors, (145), 14 states have call successors, (122), 7 states have call predecessors, (122), 10 states have return successors, (122), 13 states have call predecessors, (122), 14 states have call successors, (122) [2023-11-22 21:51:19,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:51:21,675 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:51:23,682 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:51:25,690 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:51:27,702 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:51:29,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:51:31,729 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:51:33,756 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:51:35,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:51:37,777 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:51:39,789 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:51:41,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:51:43,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:51:45,820 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:51:47,828 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:51:49,837 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15