./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-90.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f 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 ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-90.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 9c6e745fb3369f6d50167657c14f10731407b128ae2baded15d3743683fdbf24 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 13:01:44,096 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 13:01:44,182 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 13:01:44,186 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 13:01:44,187 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 13:01:44,213 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 13:01:44,214 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 13:01:44,214 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 13:01:44,215 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 13:01:44,216 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 13:01:44,216 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 13:01:44,216 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 13:01:44,217 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 13:01:44,217 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 13:01:44,219 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 13:01:44,219 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 13:01:44,220 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 13:01:44,220 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 13:01:44,220 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 13:01:44,220 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 13:01:44,221 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 13:01:44,222 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 13:01:44,222 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 13:01:44,222 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 13:01:44,223 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 13:01:44,223 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 13:01:44,223 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 13:01:44,223 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 13:01:44,224 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 13:01:44,224 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 13:01:44,224 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 13:01:44,224 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 13:01:44,225 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 13:01:44,225 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 13:01:44,225 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 13:01:44,226 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 13:01:44,226 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 13:01:44,226 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 13:01:44,226 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 13:01:44,226 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 13:01:44,227 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 13:01:44,227 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 13:01:44,227 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9c6e745fb3369f6d50167657c14f10731407b128ae2baded15d3743683fdbf24 [2024-11-22 13:01:44,468 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 13:01:44,493 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 13:01:44,496 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 13:01:44,497 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 13:01:44,498 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 13:01:44,499 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-90.i [2024-11-22 13:01:45,946 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 13:01:46,129 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 13:01:46,130 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-90.i [2024-11-22 13:01:46,141 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98b4c498c/5f8b48e37e204504adf4b6b59d20a20a/FLAG8675d9804 [2024-11-22 13:01:46,154 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98b4c498c/5f8b48e37e204504adf4b6b59d20a20a [2024-11-22 13:01:46,156 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 13:01:46,158 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 13:01:46,160 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 13:01:46,160 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 13:01:46,165 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 13:01:46,166 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:01:46" (1/1) ... [2024-11-22 13:01:46,167 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fa321ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:01:46, skipping insertion in model container [2024-11-22 13:01:46,169 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:01:46" (1/1) ... [2024-11-22 13:01:46,199 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 13:01:46,383 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-90.i[916,929] [2024-11-22 13:01:46,435 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 13:01:46,465 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 13:01:46,477 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-90.i[916,929] [2024-11-22 13:01:46,502 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 13:01:46,522 INFO L204 MainTranslator]: Completed translation [2024-11-22 13:01:46,522 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:01:46 WrapperNode [2024-11-22 13:01:46,522 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 13:01:46,523 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 13:01:46,523 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 13:01:46,523 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 13:01:46,528 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:01:46" (1/1) ... [2024-11-22 13:01:46,538 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:01:46" (1/1) ... [2024-11-22 13:01:46,571 INFO L138 Inliner]: procedures = 26, calls = 176, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 506 [2024-11-22 13:01:46,571 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 13:01:46,572 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 13:01:46,572 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 13:01:46,572 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 13:01:46,583 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:01:46" (1/1) ... [2024-11-22 13:01:46,583 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:01:46" (1/1) ... [2024-11-22 13:01:46,589 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:01:46" (1/1) ... [2024-11-22 13:01:46,610 INFO L175 MemorySlicer]: Split 130 memory accesses to 16 slices as follows [2, 3, 6, 16, 8, 12, 13, 8, 14, 8, 6, 8, 6, 4, 12, 4]. 12 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]. The 19 writes are split as follows [0, 1, 1, 1, 1, 1, 4, 1, 1, 2, 1, 1, 1, 1, 1, 1]. [2024-11-22 13:01:46,611 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:01:46" (1/1) ... [2024-11-22 13:01:46,611 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:01:46" (1/1) ... [2024-11-22 13:01:46,623 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:01:46" (1/1) ... [2024-11-22 13:01:46,628 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:01:46" (1/1) ... [2024-11-22 13:01:46,635 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:01:46" (1/1) ... [2024-11-22 13:01:46,637 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:01:46" (1/1) ... [2024-11-22 13:01:46,651 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 13:01:46,653 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 13:01:46,653 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 13:01:46,653 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 13:01:46,654 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:01:46" (1/1) ... [2024-11-22 13:01:46,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 13:01:46,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 13:01:46,695 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-22 13:01:46,701 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-22 13:01:46,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 13:01:46,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-22 13:01:46,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-22 13:01:46,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-22 13:01:46,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-22 13:01:46,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-22 13:01:46,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-22 13:01:46,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-22 13:01:46,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-22 13:01:46,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-22 13:01:46,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-22 13:01:46,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-22 13:01:46,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-22 13:01:46,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-22 13:01:46,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-22 13:01:46,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-11-22 13:01:46,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-11-22 13:01:46,754 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-22 13:01:46,754 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-22 13:01:46,754 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-22 13:01:46,754 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-22 13:01:46,755 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-22 13:01:46,755 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-22 13:01:46,755 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-22 13:01:46,755 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-22 13:01:46,755 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-22 13:01:46,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-22 13:01:46,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-22 13:01:46,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-22 13:01:46,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-22 13:01:46,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-22 13:01:46,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-11-22 13:01:46,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-11-22 13:01:46,757 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 13:01:46,757 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 13:01:46,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 13:01:46,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-22 13:01:46,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-22 13:01:46,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-22 13:01:46,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-22 13:01:46,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-22 13:01:46,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-22 13:01:46,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-22 13:01:46,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-22 13:01:46,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-22 13:01:46,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-22 13:01:46,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-22 13:01:46,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-22 13:01:46,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-22 13:01:46,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-22 13:01:46,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-22 13:01:46,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 13:01:46,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 13:01:46,923 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 13:01:46,925 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 13:01:47,528 INFO L? ?]: Removed 112 outVars from TransFormulas that were not future-live. [2024-11-22 13:01:47,528 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 13:01:47,568 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 13:01:47,568 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 13:01:47,569 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:01:47 BoogieIcfgContainer [2024-11-22 13:01:47,569 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 13:01:47,571 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 13:01:47,571 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 13:01:47,575 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 13:01:47,576 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:01:46" (1/3) ... [2024-11-22 13:01:47,576 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36260973 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:01:47, skipping insertion in model container [2024-11-22 13:01:47,577 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:01:46" (2/3) ... [2024-11-22 13:01:47,577 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36260973 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:01:47, skipping insertion in model container [2024-11-22 13:01:47,577 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:01:47" (3/3) ... [2024-11-22 13:01:47,578 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-90.i [2024-11-22 13:01:47,609 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 13:01:47,610 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 13:01:47,684 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 13:01:47,690 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@18e77cd8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 13:01:47,690 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 13:01:47,693 INFO L276 IsEmpty]: Start isEmpty. Operand has 111 states, 88 states have (on average 1.375) internal successors, (121), 89 states have internal predecessors, (121), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-22 13:01:47,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-22 13:01:47,709 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:01:47,710 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:01:47,711 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:01:47,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:01:47,717 INFO L85 PathProgramCache]: Analyzing trace with hash -803015530, now seen corresponding path program 1 times [2024-11-22 13:01:47,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:01:47,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995018309] [2024-11-22 13:01:47,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:01:47,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:01:47,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:01:48,105 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked. [2024-11-22 13:01:48,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:01:48,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995018309] [2024-11-22 13:01:48,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995018309] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 13:01:48,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1162073203] [2024-11-22 13:01:48,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:01:48,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 13:01:48,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 13:01:48,111 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 13:01:48,112 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 13:01:48,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:01:48,394 INFO L255 TraceCheckSpWp]: Trace formula consists of 597 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-22 13:01:48,405 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 13:01:48,440 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked. [2024-11-22 13:01:48,442 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 13:01:48,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1162073203] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:01:48,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 13:01:48,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-22 13:01:48,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419080196] [2024-11-22 13:01:48,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:01:48,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 13:01:48,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:01:48,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 13:01:48,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 13:01:48,480 INFO L87 Difference]: Start difference. First operand has 111 states, 88 states have (on average 1.375) internal successors, (121), 89 states have internal predecessors, (121), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-22 13:01:48,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:01:48,511 INFO L93 Difference]: Finished difference Result 215 states and 336 transitions. [2024-11-22 13:01:48,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 13:01:48,515 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 153 [2024-11-22 13:01:48,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:01:48,523 INFO L225 Difference]: With dead ends: 215 [2024-11-22 13:01:48,523 INFO L226 Difference]: Without dead ends: 107 [2024-11-22 13:01:48,526 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 13:01:48,529 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 13:01:48,530 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 13:01:48,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-11-22 13:01:48,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2024-11-22 13:01:48,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 85 states have (on average 1.3411764705882352) internal successors, (114), 85 states have internal predecessors, (114), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-22 13:01:48,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 154 transitions. [2024-11-22 13:01:48,586 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 154 transitions. Word has length 153 [2024-11-22 13:01:48,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:01:48,586 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 154 transitions. [2024-11-22 13:01:48,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-22 13:01:48,587 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 154 transitions. [2024-11-22 13:01:48,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-22 13:01:48,590 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:01:48,590 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:01:48,601 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-22 13:01:48,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-22 13:01:48,792 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:01:48,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:01:48,793 INFO L85 PathProgramCache]: Analyzing trace with hash 82058350, now seen corresponding path program 1 times [2024-11-22 13:01:48,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:01:48,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341364336] [2024-11-22 13:01:48,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:01:48,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:01:48,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:01:49,280 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-22 13:01:49,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:01:49,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341364336] [2024-11-22 13:01:49,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341364336] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 13:01:49,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [506679930] [2024-11-22 13:01:49,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:01:49,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 13:01:49,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 13:01:49,284 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 13:01:49,286 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 13:01:49,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:01:49,527 INFO L255 TraceCheckSpWp]: Trace formula consists of 597 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 13:01:49,535 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 13:01:49,613 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 13:01:49,614 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 13:01:49,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [506679930] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:01:49,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 13:01:49,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 7 [2024-11-22 13:01:49,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201076579] [2024-11-22 13:01:49,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:01:49,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 13:01:49,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:01:49,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 13:01:49,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-22 13:01:49,618 INFO L87 Difference]: Start difference. First operand 107 states and 154 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:01:49,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:01:49,668 INFO L93 Difference]: Finished difference Result 213 states and 308 transitions. [2024-11-22 13:01:49,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 13:01:49,668 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 153 [2024-11-22 13:01:49,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:01:49,671 INFO L225 Difference]: With dead ends: 213 [2024-11-22 13:01:49,672 INFO L226 Difference]: Without dead ends: 109 [2024-11-22 13:01:49,673 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-22 13:01:49,674 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 0 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 13:01:49,676 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 445 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 13:01:49,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-11-22 13:01:49,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2024-11-22 13:01:49,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 87 states have (on average 1.3333333333333333) internal successors, (116), 87 states have internal predecessors, (116), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-22 13:01:49,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 156 transitions. [2024-11-22 13:01:49,693 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 156 transitions. Word has length 153 [2024-11-22 13:01:49,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:01:49,694 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 156 transitions. [2024-11-22 13:01:49,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:01:49,695 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 156 transitions. [2024-11-22 13:01:49,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-22 13:01:49,697 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:01:49,699 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:01:49,709 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-22 13:01:49,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-22 13:01:49,901 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:01:49,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:01:49,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1318528233, now seen corresponding path program 1 times [2024-11-22 13:01:49,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:01:49,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501669198] [2024-11-22 13:01:49,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:01:49,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:01:49,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:01:50,406 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 13:01:50,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:01:50,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501669198] [2024-11-22 13:01:50,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501669198] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:01:50,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:01:50,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 13:01:50,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022514017] [2024-11-22 13:01:50,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:01:50,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 13:01:50,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:01:50,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 13:01:50,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 13:01:50,412 INFO L87 Difference]: Start difference. First operand 109 states and 156 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:01:50,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:01:50,530 INFO L93 Difference]: Finished difference Result 323 states and 464 transitions. [2024-11-22 13:01:50,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 13:01:50,531 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 155 [2024-11-22 13:01:50,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:01:50,533 INFO L225 Difference]: With dead ends: 323 [2024-11-22 13:01:50,534 INFO L226 Difference]: Without dead ends: 217 [2024-11-22 13:01:50,536 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-22 13:01:50,537 INFO L432 NwaCegarLoop]: 287 mSDtfsCounter, 146 mSDsluCounter, 707 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 994 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 13:01:50,537 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 994 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 13:01:50,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2024-11-22 13:01:50,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 114. [2024-11-22 13:01:50,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 92 states have (on average 1.326086956521739) internal successors, (122), 92 states have internal predecessors, (122), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-22 13:01:50,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 162 transitions. [2024-11-22 13:01:50,553 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 162 transitions. Word has length 155 [2024-11-22 13:01:50,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:01:50,554 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 162 transitions. [2024-11-22 13:01:50,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:01:50,554 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 162 transitions. [2024-11-22 13:01:50,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-22 13:01:50,557 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:01:50,557 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:01:50,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 13:01:50,557 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:01:50,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:01:50,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1537382951, now seen corresponding path program 1 times [2024-11-22 13:01:50,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:01:50,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792786085] [2024-11-22 13:01:50,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:01:50,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:01:50,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:01:51,161 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 13:01:51,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:01:51,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792786085] [2024-11-22 13:01:51,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792786085] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:01:51,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:01:51,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 13:01:51,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024099527] [2024-11-22 13:01:51,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:01:51,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 13:01:51,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:01:51,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 13:01:51,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 13:01:51,164 INFO L87 Difference]: Start difference. First operand 114 states and 162 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:01:51,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:01:51,464 INFO L93 Difference]: Finished difference Result 322 states and 460 transitions. [2024-11-22 13:01:51,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 13:01:51,464 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 155 [2024-11-22 13:01:51,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:01:51,468 INFO L225 Difference]: With dead ends: 322 [2024-11-22 13:01:51,470 INFO L226 Difference]: Without dead ends: 211 [2024-11-22 13:01:51,471 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-22 13:01:51,472 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 380 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 13:01:51,474 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [380 Valid, 489 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 13:01:51,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2024-11-22 13:01:51,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 116. [2024-11-22 13:01:51,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 94 states have (on average 1.3191489361702127) internal successors, (124), 94 states have internal predecessors, (124), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-22 13:01:51,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 164 transitions. [2024-11-22 13:01:51,498 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 164 transitions. Word has length 155 [2024-11-22 13:01:51,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:01:51,499 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 164 transitions. [2024-11-22 13:01:51,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:01:51,499 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 164 transitions. [2024-11-22 13:01:51,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-22 13:01:51,505 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:01:51,506 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:01:51,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 13:01:51,506 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:01:51,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:01:51,507 INFO L85 PathProgramCache]: Analyzing trace with hash -963382957, now seen corresponding path program 1 times [2024-11-22 13:01:51,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:01:51,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417340988] [2024-11-22 13:01:51,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:01:51,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:01:51,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:01:52,537 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 13:01:52,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:01:52,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417340988] [2024-11-22 13:01:52,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417340988] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:01:52,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:01:52,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-22 13:01:52,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044657143] [2024-11-22 13:01:52,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:01:52,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 13:01:52,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:01:52,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 13:01:52,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-22 13:01:52,542 INFO L87 Difference]: Start difference. First operand 116 states and 164 transitions. Second operand has 10 states, 9 states have (on average 6.555555555555555) internal successors, (59), 10 states have internal predecessors, (59), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-22 13:01:52,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:01:52,853 INFO L93 Difference]: Finished difference Result 236 states and 332 transitions. [2024-11-22 13:01:52,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 13:01:52,854 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.555555555555555) internal successors, (59), 10 states have internal predecessors, (59), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) Word has length 156 [2024-11-22 13:01:52,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:01:52,855 INFO L225 Difference]: With dead ends: 236 [2024-11-22 13:01:52,855 INFO L226 Difference]: Without dead ends: 123 [2024-11-22 13:01:52,856 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2024-11-22 13:01:52,857 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 310 mSDsluCounter, 569 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 702 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 13:01:52,857 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 702 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 13:01:52,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2024-11-22 13:01:52,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2024-11-22 13:01:52,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 100 states have (on average 1.3) internal successors, (130), 100 states have internal predecessors, (130), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-22 13:01:52,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 170 transitions. [2024-11-22 13:01:52,869 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 170 transitions. Word has length 156 [2024-11-22 13:01:52,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:01:52,870 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 170 transitions. [2024-11-22 13:01:52,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.555555555555555) internal successors, (59), 10 states have internal predecessors, (59), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-22 13:01:52,870 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 170 transitions. [2024-11-22 13:01:52,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-22 13:01:52,872 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:01:52,872 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:01:52,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 13:01:52,873 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:01:52,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:01:52,873 INFO L85 PathProgramCache]: Analyzing trace with hash -842790620, now seen corresponding path program 1 times [2024-11-22 13:01:52,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:01:52,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327199372] [2024-11-22 13:01:52,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:01:52,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:01:52,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:01:53,380 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 48 proven. 9 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-22 13:01:53,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:01:53,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327199372] [2024-11-22 13:01:53,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327199372] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 13:01:53,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1728277452] [2024-11-22 13:01:53,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:01:53,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 13:01:53,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 13:01:53,384 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 13:01:53,386 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 13:01:53,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:01:53,624 INFO L255 TraceCheckSpWp]: Trace formula consists of 627 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-11-22 13:01:53,633 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 13:01:53,949 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 15 treesize of output 1 [2024-11-22 13:01:54,255 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 0 case distinctions, treesize of input 72 treesize of output 59 [2024-11-22 13:01:54,262 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 16 treesize of output 15 [2024-11-22 13:01:54,277 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 18 treesize of output 17 [2024-11-22 13:01:54,360 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 65 treesize of output 53 [2024-11-22 13:01:54,432 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 59 treesize of output 39 [2024-11-22 13:01:54,552 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 312 refuted. 0 times theorem prover too weak. 448 trivial. 0 not checked. [2024-11-22 13:01:54,553 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 13:01:54,764 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 37 treesize of output 33 [2024-11-22 13:01:54,780 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 13:01:54,780 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 49 [2024-11-22 13:01:54,836 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 67 treesize of output 54 [2024-11-22 13:01:54,854 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 10 treesize of output 8 [2024-11-22 13:01:54,958 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 13:01:54,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1728277452] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-22 13:01:54,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-22 13:01:54,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9, 15] total 27 [2024-11-22 13:01:54,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444783593] [2024-11-22 13:01:54,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:01:54,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 13:01:54,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:01:54,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 13:01:54,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=634, Unknown=0, NotChecked=0, Total=702 [2024-11-22 13:01:54,960 INFO L87 Difference]: Start difference. First operand 123 states and 170 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:01:55,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:01:55,311 INFO L93 Difference]: Finished difference Result 299 states and 411 transitions. [2024-11-22 13:01:55,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 13:01:55,312 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 157 [2024-11-22 13:01:55,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:01:55,313 INFO L225 Difference]: With dead ends: 299 [2024-11-22 13:01:55,313 INFO L226 Difference]: Without dead ends: 179 [2024-11-22 13:01:55,314 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 295 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=86, Invalid=844, Unknown=0, NotChecked=0, Total=930 [2024-11-22 13:01:55,315 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 67 mSDsluCounter, 971 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 1150 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 13:01:55,315 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 1150 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 13:01:55,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-11-22 13:01:55,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 174. [2024-11-22 13:01:55,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 148 states have (on average 1.3175675675675675) internal successors, (195), 149 states have internal predecessors, (195), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-22 13:01:55,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 239 transitions. [2024-11-22 13:01:55,330 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 239 transitions. Word has length 157 [2024-11-22 13:01:55,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:01:55,333 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 239 transitions. [2024-11-22 13:01:55,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:01:55,333 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 239 transitions. [2024-11-22 13:01:55,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-22 13:01:55,334 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:01:55,335 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:01:55,347 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-22 13:01:55,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 13:01:55,536 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:01:55,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:01:55,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1853907870, now seen corresponding path program 1 times [2024-11-22 13:01:55,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:01:55,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339934621] [2024-11-22 13:01:55,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:01:55,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:01:55,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:01:55,907 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 13:01:55,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:01:55,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339934621] [2024-11-22 13:01:55,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339934621] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:01:55,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:01:55,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 13:01:55,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410920334] [2024-11-22 13:01:55,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:01:55,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 13:01:55,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:01:55,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 13:01:55,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 13:01:55,917 INFO L87 Difference]: Start difference. First operand 174 states and 239 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:01:56,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:01:56,060 INFO L93 Difference]: Finished difference Result 354 states and 483 transitions. [2024-11-22 13:01:56,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 13:01:56,060 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 157 [2024-11-22 13:01:56,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:01:56,063 INFO L225 Difference]: With dead ends: 354 [2024-11-22 13:01:56,064 INFO L226 Difference]: Without dead ends: 183 [2024-11-22 13:01:56,064 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-22 13:01:56,066 INFO L432 NwaCegarLoop]: 190 mSDtfsCounter, 62 mSDsluCounter, 648 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 838 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 13:01:56,066 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 838 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 13:01:56,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2024-11-22 13:01:56,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 171. [2024-11-22 13:01:56,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 145 states have (on average 1.3103448275862069) internal successors, (190), 146 states have internal predecessors, (190), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-22 13:01:56,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 234 transitions. [2024-11-22 13:01:56,086 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 234 transitions. Word has length 157 [2024-11-22 13:01:56,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:01:56,086 INFO L471 AbstractCegarLoop]: Abstraction has 171 states and 234 transitions. [2024-11-22 13:01:56,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:01:56,087 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 234 transitions. [2024-11-22 13:01:56,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-22 13:01:56,089 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:01:56,089 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:01:56,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 13:01:56,091 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:01:56,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:01:56,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1458031970, now seen corresponding path program 1 times [2024-11-22 13:01:56,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:01:56,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740512769] [2024-11-22 13:01:56,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:01:56,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:01:56,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:01:56,435 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 13:01:56,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:01:56,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740512769] [2024-11-22 13:01:56,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740512769] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:01:56,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:01:56,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 13:01:56,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040229716] [2024-11-22 13:01:56,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:01:56,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 13:01:56,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:01:56,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 13:01:56,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 13:01:56,439 INFO L87 Difference]: Start difference. First operand 171 states and 234 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:01:56,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:01:56,555 INFO L93 Difference]: Finished difference Result 385 states and 525 transitions. [2024-11-22 13:01:56,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 13:01:56,556 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 157 [2024-11-22 13:01:56,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:01:56,560 INFO L225 Difference]: With dead ends: 385 [2024-11-22 13:01:56,560 INFO L226 Difference]: Without dead ends: 217 [2024-11-22 13:01:56,560 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-22 13:01:56,561 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 61 mSDsluCounter, 625 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 807 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 13:01:56,561 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 807 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 13:01:56,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2024-11-22 13:01:56,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 171. [2024-11-22 13:01:56,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 145 states have (on average 1.303448275862069) internal successors, (189), 146 states have internal predecessors, (189), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-22 13:01:56,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 233 transitions. [2024-11-22 13:01:56,575 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 233 transitions. Word has length 157 [2024-11-22 13:01:56,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:01:56,576 INFO L471 AbstractCegarLoop]: Abstraction has 171 states and 233 transitions. [2024-11-22 13:01:56,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:01:56,576 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 233 transitions. [2024-11-22 13:01:56,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-22 13:01:56,578 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:01:56,578 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:01:56,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 13:01:56,578 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:01:56,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:01:56,579 INFO L85 PathProgramCache]: Analyzing trace with hash 446914720, now seen corresponding path program 1 times [2024-11-22 13:01:56,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:01:56,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037993151] [2024-11-22 13:01:56,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:01:56,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:01:56,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:01:57,028 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 48 proven. 9 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-22 13:01:57,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:01:57,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037993151] [2024-11-22 13:01:57,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037993151] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 13:01:57,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1995469073] [2024-11-22 13:01:57,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:01:57,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 13:01:57,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 13:01:57,031 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 13:01:57,033 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 13:01:57,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:01:57,242 INFO L255 TraceCheckSpWp]: Trace formula consists of 623 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-22 13:01:57,247 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 13:01:57,457 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 7 treesize of output 3 [2024-11-22 13:01:57,483 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 0 case distinctions, treesize of input 64 treesize of output 51 [2024-11-22 13:01:57,489 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 16 treesize of output 15 [2024-11-22 13:01:57,499 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 14 treesize of output 13 [2024-11-22 13:01:57,554 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 57 treesize of output 45 [2024-11-22 13:01:57,605 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 49 treesize of output 29 [2024-11-22 13:01:57,700 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-22 13:01:57,700 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 13:01:57,820 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 37 treesize of output 33 [2024-11-22 13:01:57,830 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 13:01:57,831 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 49 [2024-11-22 13:01:57,879 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 8 treesize of output 6 [2024-11-22 13:01:57,973 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 13:01:57,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1995469073] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-22 13:01:57,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-22 13:01:57,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9, 12] total 21 [2024-11-22 13:01:57,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387404373] [2024-11-22 13:01:57,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:01:57,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 13:01:57,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:01:57,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 13:01:57,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=374, Unknown=0, NotChecked=0, Total=420 [2024-11-22 13:01:57,975 INFO L87 Difference]: Start difference. First operand 171 states and 233 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:01:58,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:01:58,288 INFO L93 Difference]: Finished difference Result 399 states and 540 transitions. [2024-11-22 13:01:58,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 13:01:58,289 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 157 [2024-11-22 13:01:58,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:01:58,291 INFO L225 Difference]: With dead ends: 399 [2024-11-22 13:01:58,291 INFO L226 Difference]: Without dead ends: 231 [2024-11-22 13:01:58,292 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 301 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2024-11-22 13:01:58,292 INFO L432 NwaCegarLoop]: 217 mSDtfsCounter, 73 mSDsluCounter, 1144 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 1361 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 13:01:58,292 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 1361 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 13:01:58,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2024-11-22 13:01:58,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 224. [2024-11-22 13:01:58,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 190 states have (on average 1.3) internal successors, (247), 192 states have internal predecessors, (247), 28 states have call successors, (28), 5 states have call predecessors, (28), 5 states have return successors, (28), 26 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-22 13:01:58,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 303 transitions. [2024-11-22 13:01:58,310 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 303 transitions. Word has length 157 [2024-11-22 13:01:58,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:01:58,311 INFO L471 AbstractCegarLoop]: Abstraction has 224 states and 303 transitions. [2024-11-22 13:01:58,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:01:58,311 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 303 transitions. [2024-11-22 13:01:58,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-22 13:01:58,313 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:01:58,313 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:01:58,322 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-22 13:01:58,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 13:01:58,518 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:01:58,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:01:58,519 INFO L85 PathProgramCache]: Analyzing trace with hash 252308769, now seen corresponding path program 1 times [2024-11-22 13:01:58,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:01:58,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463072537] [2024-11-22 13:01:58,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:01:58,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:01:58,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:01:58,682 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 13:01:58,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:01:58,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463072537] [2024-11-22 13:01:58,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463072537] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:01:58,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:01:58,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 13:01:58,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767186194] [2024-11-22 13:01:58,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:01:58,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 13:01:58,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:01:58,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 13:01:58,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 13:01:58,685 INFO L87 Difference]: Start difference. First operand 224 states and 303 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:01:58,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:01:58,775 INFO L93 Difference]: Finished difference Result 588 states and 802 transitions. [2024-11-22 13:01:58,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 13:01:58,776 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 158 [2024-11-22 13:01:58,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:01:58,778 INFO L225 Difference]: With dead ends: 588 [2024-11-22 13:01:58,778 INFO L226 Difference]: Without dead ends: 367 [2024-11-22 13:01:58,779 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-22 13:01:58,779 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 62 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 668 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 13:01:58,779 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 668 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 13:01:58,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2024-11-22 13:01:58,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 269. [2024-11-22 13:01:58,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 235 states have (on average 1.3063829787234043) internal successors, (307), 237 states have internal predecessors, (307), 28 states have call successors, (28), 5 states have call predecessors, (28), 5 states have return successors, (28), 26 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-22 13:01:58,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 363 transitions. [2024-11-22 13:01:58,798 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 363 transitions. Word has length 158 [2024-11-22 13:01:58,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:01:58,798 INFO L471 AbstractCegarLoop]: Abstraction has 269 states and 363 transitions. [2024-11-22 13:01:58,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:01:58,798 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 363 transitions. [2024-11-22 13:01:58,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-22 13:01:58,800 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:01:58,800 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:01:58,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 13:01:58,800 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:01:58,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:01:58,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1027554909, now seen corresponding path program 1 times [2024-11-22 13:01:58,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:01:58,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589754179] [2024-11-22 13:01:58,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:01:58,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:01:58,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:01:58,970 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 13:01:58,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:01:58,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589754179] [2024-11-22 13:01:58,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589754179] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:01:58,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:01:58,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 13:01:58,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486832004] [2024-11-22 13:01:58,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:01:58,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 13:01:58,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:01:58,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 13:01:58,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 13:01:58,973 INFO L87 Difference]: Start difference. First operand 269 states and 363 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:01:59,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:01:59,076 INFO L93 Difference]: Finished difference Result 701 states and 946 transitions. [2024-11-22 13:01:59,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 13:01:59,077 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 158 [2024-11-22 13:01:59,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:01:59,079 INFO L225 Difference]: With dead ends: 701 [2024-11-22 13:01:59,079 INFO L226 Difference]: Without dead ends: 435 [2024-11-22 13:01:59,080 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 13:01:59,080 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 78 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 13:01:59,081 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 611 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 13:01:59,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2024-11-22 13:01:59,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 304. [2024-11-22 13:01:59,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 270 states have (on average 1.3037037037037038) internal successors, (352), 272 states have internal predecessors, (352), 28 states have call successors, (28), 5 states have call predecessors, (28), 5 states have return successors, (28), 26 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-22 13:01:59,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 408 transitions. [2024-11-22 13:01:59,101 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 408 transitions. Word has length 158 [2024-11-22 13:01:59,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:01:59,102 INFO L471 AbstractCegarLoop]: Abstraction has 304 states and 408 transitions. [2024-11-22 13:01:59,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:01:59,102 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 408 transitions. [2024-11-22 13:01:59,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-22 13:01:59,114 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:01:59,114 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:01:59,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 13:01:59,115 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:01:59,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:01:59,116 INFO L85 PathProgramCache]: Analyzing trace with hash 527068383, now seen corresponding path program 1 times [2024-11-22 13:01:59,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:01:59,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481391001] [2024-11-22 13:01:59,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:01:59,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:01:59,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:01:59,336 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 13:01:59,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:01:59,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481391001] [2024-11-22 13:01:59,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481391001] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:01:59,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:01:59,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 13:01:59,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700421815] [2024-11-22 13:01:59,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:01:59,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 13:01:59,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:01:59,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 13:01:59,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 13:01:59,340 INFO L87 Difference]: Start difference. First operand 304 states and 408 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:01:59,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:01:59,449 INFO L93 Difference]: Finished difference Result 693 states and 927 transitions. [2024-11-22 13:01:59,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 13:01:59,450 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 158 [2024-11-22 13:01:59,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:01:59,452 INFO L225 Difference]: With dead ends: 693 [2024-11-22 13:01:59,452 INFO L226 Difference]: Without dead ends: 392 [2024-11-22 13:01:59,455 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 13:01:59,455 INFO L432 NwaCegarLoop]: 200 mSDtfsCounter, 76 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 702 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 13:01:59,456 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 702 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 13:01:59,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2024-11-22 13:01:59,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 265. [2024-11-22 13:01:59,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 233 states have (on average 1.2832618025751072) internal successors, (299), 234 states have internal predecessors, (299), 26 states have call successors, (26), 5 states have call predecessors, (26), 5 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-22 13:01:59,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 351 transitions. [2024-11-22 13:01:59,477 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 351 transitions. Word has length 158 [2024-11-22 13:01:59,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:01:59,480 INFO L471 AbstractCegarLoop]: Abstraction has 265 states and 351 transitions. [2024-11-22 13:01:59,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:01:59,480 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 351 transitions. [2024-11-22 13:01:59,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-22 13:01:59,482 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:01:59,482 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:01:59,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 13:01:59,482 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:01:59,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:01:59,483 INFO L85 PathProgramCache]: Analyzing trace with hash -752795295, now seen corresponding path program 1 times [2024-11-22 13:01:59,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:01:59,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502045989] [2024-11-22 13:01:59,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:01:59,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:01:59,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:01:59,634 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 13:01:59,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:01:59,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502045989] [2024-11-22 13:01:59,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502045989] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:01:59,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:01:59,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 13:01:59,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793387437] [2024-11-22 13:01:59,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:01:59,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 13:01:59,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:01:59,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 13:01:59,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 13:01:59,636 INFO L87 Difference]: Start difference. First operand 265 states and 351 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:01:59,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:01:59,728 INFO L93 Difference]: Finished difference Result 616 states and 818 transitions. [2024-11-22 13:01:59,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 13:01:59,729 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 158 [2024-11-22 13:01:59,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:01:59,733 INFO L225 Difference]: With dead ends: 616 [2024-11-22 13:01:59,734 INFO L226 Difference]: Without dead ends: 354 [2024-11-22 13:01:59,734 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-22 13:01:59,735 INFO L432 NwaCegarLoop]: 212 mSDtfsCounter, 52 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 942 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 13:01:59,735 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 942 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 13:01:59,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2024-11-22 13:01:59,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 302. [2024-11-22 13:01:59,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 270 states have (on average 1.2851851851851852) internal successors, (347), 271 states have internal predecessors, (347), 26 states have call successors, (26), 5 states have call predecessors, (26), 5 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-22 13:01:59,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 399 transitions. [2024-11-22 13:01:59,755 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 399 transitions. Word has length 158 [2024-11-22 13:01:59,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:01:59,755 INFO L471 AbstractCegarLoop]: Abstraction has 302 states and 399 transitions. [2024-11-22 13:01:59,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:01:59,756 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 399 transitions. [2024-11-22 13:01:59,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-22 13:01:59,758 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:01:59,758 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:01:59,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 13:01:59,758 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:01:59,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:01:59,759 INFO L85 PathProgramCache]: Analyzing trace with hash -1008765421, now seen corresponding path program 1 times [2024-11-22 13:01:59,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:01:59,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995417029] [2024-11-22 13:01:59,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:01:59,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:01:59,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:02:00,478 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 13:02:00,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:02:00,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995417029] [2024-11-22 13:02:00,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995417029] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:02:00,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:02:00,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-22 13:02:00,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129282304] [2024-11-22 13:02:00,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:02:00,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-22 13:02:00,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:02:00,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-22 13:02:00,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-22 13:02:00,481 INFO L87 Difference]: Start difference. First operand 302 states and 399 transitions. Second operand has 11 states, 10 states have (on average 6.2) internal successors, (62), 11 states have internal predecessors, (62), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-22 13:02:00,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:02:00,784 INFO L93 Difference]: Finished difference Result 609 states and 805 transitions. [2024-11-22 13:02:00,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 13:02:00,785 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.2) internal successors, (62), 11 states have internal predecessors, (62), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) Word has length 159 [2024-11-22 13:02:00,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:02:00,787 INFO L225 Difference]: With dead ends: 609 [2024-11-22 13:02:00,788 INFO L226 Difference]: Without dead ends: 310 [2024-11-22 13:02:00,789 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2024-11-22 13:02:00,789 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 204 mSDsluCounter, 688 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 819 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 13:02:00,790 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 819 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 13:02:00,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2024-11-22 13:02:00,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 304. [2024-11-22 13:02:00,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 272 states have (on average 1.2830882352941178) internal successors, (349), 273 states have internal predecessors, (349), 26 states have call successors, (26), 5 states have call predecessors, (26), 5 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-22 13:02:00,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 401 transitions. [2024-11-22 13:02:00,809 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 401 transitions. Word has length 159 [2024-11-22 13:02:00,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:02:00,811 INFO L471 AbstractCegarLoop]: Abstraction has 304 states and 401 transitions. [2024-11-22 13:02:00,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.2) internal successors, (62), 11 states have internal predecessors, (62), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-22 13:02:00,811 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 401 transitions. [2024-11-22 13:02:00,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-22 13:02:00,812 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:02:00,813 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:02:00,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 13:02:00,813 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:02:00,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:02:00,813 INFO L85 PathProgramCache]: Analyzing trace with hash -502737119, now seen corresponding path program 1 times [2024-11-22 13:02:00,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:02:00,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042111285] [2024-11-22 13:02:00,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:02:00,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:02:00,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:02:01,083 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 13:02:01,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:02:01,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042111285] [2024-11-22 13:02:01,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042111285] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:02:01,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:02:01,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 13:02:01,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461451565] [2024-11-22 13:02:01,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:02:01,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 13:02:01,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:02:01,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 13:02:01,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 13:02:01,086 INFO L87 Difference]: Start difference. First operand 304 states and 401 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:02:01,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:02:01,215 INFO L93 Difference]: Finished difference Result 832 states and 1088 transitions. [2024-11-22 13:02:01,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 13:02:01,216 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 160 [2024-11-22 13:02:01,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:02:01,220 INFO L225 Difference]: With dead ends: 832 [2024-11-22 13:02:01,221 INFO L226 Difference]: Without dead ends: 531 [2024-11-22 13:02:01,222 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 13:02:01,222 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 171 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 13:02:01,222 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 456 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 13:02:01,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2024-11-22 13:02:01,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 528. [2024-11-22 13:02:01,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 469 states have (on average 1.2579957356076759) internal successors, (590), 472 states have internal predecessors, (590), 48 states have call successors, (48), 10 states have call predecessors, (48), 10 states have return successors, (48), 45 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-22 13:02:01,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 686 transitions. [2024-11-22 13:02:01,261 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 686 transitions. Word has length 160 [2024-11-22 13:02:01,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:02:01,261 INFO L471 AbstractCegarLoop]: Abstraction has 528 states and 686 transitions. [2024-11-22 13:02:01,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:02:01,261 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 686 transitions. [2024-11-22 13:02:01,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-22 13:02:01,263 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:02:01,263 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:02:01,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 13:02:01,264 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:02:01,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:02:01,264 INFO L85 PathProgramCache]: Analyzing trace with hash 198327459, now seen corresponding path program 1 times [2024-11-22 13:02:01,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:02:01,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096454251] [2024-11-22 13:02:01,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:02:01,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:02:01,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:02:02,194 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 13:02:02,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:02:02,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096454251] [2024-11-22 13:02:02,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096454251] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:02:02,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:02:02,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-22 13:02:02,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705585797] [2024-11-22 13:02:02,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:02:02,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-22 13:02:02,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:02:02,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-22 13:02:02,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-22 13:02:02,197 INFO L87 Difference]: Start difference. First operand 528 states and 686 transitions. Second operand has 11 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 11 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:02:02,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:02:02,634 INFO L93 Difference]: Finished difference Result 1348 states and 1738 transitions. [2024-11-22 13:02:02,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-22 13:02:02,635 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 11 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 160 [2024-11-22 13:02:02,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:02:02,639 INFO L225 Difference]: With dead ends: 1348 [2024-11-22 13:02:02,639 INFO L226 Difference]: Without dead ends: 823 [2024-11-22 13:02:02,640 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2024-11-22 13:02:02,641 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 254 mSDsluCounter, 1104 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 1243 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 13:02:02,641 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 1243 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 13:02:02,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 823 states. [2024-11-22 13:02:02,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 823 to 759. [2024-11-22 13:02:02,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 759 states, 674 states have (on average 1.2433234421364985) internal successors, (838), 679 states have internal predecessors, (838), 68 states have call successors, (68), 16 states have call predecessors, (68), 16 states have return successors, (68), 63 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-22 13:02:02,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 759 states to 759 states and 974 transitions. [2024-11-22 13:02:02,729 INFO L78 Accepts]: Start accepts. Automaton has 759 states and 974 transitions. Word has length 160 [2024-11-22 13:02:02,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:02:02,730 INFO L471 AbstractCegarLoop]: Abstraction has 759 states and 974 transitions. [2024-11-22 13:02:02,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 11 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:02:02,731 INFO L276 IsEmpty]: Start isEmpty. Operand 759 states and 974 transitions. [2024-11-22 13:02:02,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-22 13:02:02,733 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:02:02,733 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:02:02,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 13:02:02,733 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:02:02,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:02:02,734 INFO L85 PathProgramCache]: Analyzing trace with hash -903166998, now seen corresponding path program 1 times [2024-11-22 13:02:02,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:02:02,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391428048] [2024-11-22 13:02:02,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:02:02,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:02:02,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:02:03,009 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 13:02:03,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:02:03,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391428048] [2024-11-22 13:02:03,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391428048] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:02:03,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:02:03,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 13:02:03,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666743249] [2024-11-22 13:02:03,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:02:03,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 13:02:03,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:02:03,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 13:02:03,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 13:02:03,011 INFO L87 Difference]: Start difference. First operand 759 states and 974 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:02:03,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:02:03,089 INFO L93 Difference]: Finished difference Result 1511 states and 1936 transitions. [2024-11-22 13:02:03,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 13:02:03,090 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 160 [2024-11-22 13:02:03,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:02:03,093 INFO L225 Difference]: With dead ends: 1511 [2024-11-22 13:02:03,093 INFO L226 Difference]: Without dead ends: 755 [2024-11-22 13:02:03,094 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 13:02:03,095 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 47 mSDsluCounter, 465 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 632 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 13:02:03,095 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 632 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 13:02:03,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 755 states. [2024-11-22 13:02:03,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 755 to 751. [2024-11-22 13:02:03,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 751 states, 666 states have (on average 1.2327327327327327) internal successors, (821), 671 states have internal predecessors, (821), 68 states have call successors, (68), 16 states have call predecessors, (68), 16 states have return successors, (68), 63 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-22 13:02:03,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 751 states to 751 states and 957 transitions. [2024-11-22 13:02:03,140 INFO L78 Accepts]: Start accepts. Automaton has 751 states and 957 transitions. Word has length 160 [2024-11-22 13:02:03,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:02:03,141 INFO L471 AbstractCegarLoop]: Abstraction has 751 states and 957 transitions. [2024-11-22 13:02:03,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:02:03,141 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states and 957 transitions. [2024-11-22 13:02:03,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-22 13:02:03,143 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:02:03,143 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:02:03,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-22 13:02:03,143 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:02:03,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:02:03,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1446121962, now seen corresponding path program 1 times [2024-11-22 13:02:03,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:02:03,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119881981] [2024-11-22 13:02:03,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:02:03,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:02:03,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:02:03,344 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 13:02:03,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:02:03,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119881981] [2024-11-22 13:02:03,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119881981] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:02:03,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:02:03,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 13:02:03,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685360304] [2024-11-22 13:02:03,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:02:03,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 13:02:03,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:02:03,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 13:02:03,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 13:02:03,346 INFO L87 Difference]: Start difference. First operand 751 states and 957 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:02:03,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:02:03,449 INFO L93 Difference]: Finished difference Result 1499 states and 1908 transitions. [2024-11-22 13:02:03,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 13:02:03,450 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 160 [2024-11-22 13:02:03,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:02:03,453 INFO L225 Difference]: With dead ends: 1499 [2024-11-22 13:02:03,453 INFO L226 Difference]: Without dead ends: 751 [2024-11-22 13:02:03,454 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 13:02:03,455 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 49 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 13:02:03,455 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 679 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 13:02:03,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2024-11-22 13:02:03,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 747. [2024-11-22 13:02:03,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 747 states, 662 states have (on average 1.2280966767371602) internal successors, (813), 667 states have internal predecessors, (813), 68 states have call successors, (68), 16 states have call predecessors, (68), 16 states have return successors, (68), 63 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-22 13:02:03,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 747 states to 747 states and 949 transitions. [2024-11-22 13:02:03,501 INFO L78 Accepts]: Start accepts. Automaton has 747 states and 949 transitions. Word has length 160 [2024-11-22 13:02:03,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:02:03,501 INFO L471 AbstractCegarLoop]: Abstraction has 747 states and 949 transitions. [2024-11-22 13:02:03,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:02:03,501 INFO L276 IsEmpty]: Start isEmpty. Operand 747 states and 949 transitions. [2024-11-22 13:02:03,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-22 13:02:03,503 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:02:03,503 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:02:03,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-22 13:02:03,503 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:02:03,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:02:03,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1045692083, now seen corresponding path program 1 times [2024-11-22 13:02:03,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:02:03,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659812733] [2024-11-22 13:02:03,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:02:03,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:02:03,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:02:03,740 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 13:02:03,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:02:03,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659812733] [2024-11-22 13:02:03,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659812733] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:02:03,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:02:03,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 13:02:03,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671791118] [2024-11-22 13:02:03,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:02:03,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 13:02:03,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:02:03,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 13:02:03,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 13:02:03,742 INFO L87 Difference]: Start difference. First operand 747 states and 949 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:02:03,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:02:03,828 INFO L93 Difference]: Finished difference Result 1710 states and 2168 transitions. [2024-11-22 13:02:03,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 13:02:03,829 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 160 [2024-11-22 13:02:03,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:02:03,833 INFO L225 Difference]: With dead ends: 1710 [2024-11-22 13:02:03,833 INFO L226 Difference]: Without dead ends: 966 [2024-11-22 13:02:03,835 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 13:02:03,835 INFO L432 NwaCegarLoop]: 226 mSDtfsCounter, 84 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 734 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 13:02:03,835 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 734 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 13:02:03,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 966 states. [2024-11-22 13:02:03,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 966 to 963. [2024-11-22 13:02:03,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 963 states, 855 states have (on average 1.223391812865497) internal successors, (1046), 862 states have internal predecessors, (1046), 86 states have call successors, (86), 21 states have call predecessors, (86), 21 states have return successors, (86), 79 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-22 13:02:03,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 963 states to 963 states and 1218 transitions. [2024-11-22 13:02:03,890 INFO L78 Accepts]: Start accepts. Automaton has 963 states and 1218 transitions. Word has length 160 [2024-11-22 13:02:03,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:02:03,891 INFO L471 AbstractCegarLoop]: Abstraction has 963 states and 1218 transitions. [2024-11-22 13:02:03,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:02:03,891 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1218 transitions. [2024-11-22 13:02:03,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-22 13:02:03,893 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:02:03,893 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:02:03,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-22 13:02:03,894 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:02:03,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:02:03,894 INFO L85 PathProgramCache]: Analyzing trace with hash 1746756661, now seen corresponding path program 1 times [2024-11-22 13:02:03,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:02:03,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359338166] [2024-11-22 13:02:03,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:02:03,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:02:03,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:02:04,719 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 13:02:04,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:02:04,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359338166] [2024-11-22 13:02:04,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359338166] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:02:04,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:02:04,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-22 13:02:04,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085493080] [2024-11-22 13:02:04,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:02:04,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-22 13:02:04,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:02:04,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-22 13:02:04,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-22 13:02:04,724 INFO L87 Difference]: Start difference. First operand 963 states and 1218 transitions. Second operand has 11 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 11 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:02:05,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:02:05,198 INFO L93 Difference]: Finished difference Result 2103 states and 2653 transitions. [2024-11-22 13:02:05,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-22 13:02:05,198 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 11 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 160 [2024-11-22 13:02:05,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:02:05,204 INFO L225 Difference]: With dead ends: 2103 [2024-11-22 13:02:05,204 INFO L226 Difference]: Without dead ends: 1143 [2024-11-22 13:02:05,206 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2024-11-22 13:02:05,207 INFO L432 NwaCegarLoop]: 224 mSDtfsCounter, 241 mSDsluCounter, 1647 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 1871 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 13:02:05,208 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 1871 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 13:02:05,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1143 states. [2024-11-22 13:02:05,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1143 to 937. [2024-11-22 13:02:05,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 937 states, 853 states have (on average 1.2203985932004688) internal successors, (1041), 858 states have internal predecessors, (1041), 66 states have call successors, (66), 17 states have call predecessors, (66), 17 states have return successors, (66), 61 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-22 13:02:05,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 937 states to 937 states and 1173 transitions. [2024-11-22 13:02:05,271 INFO L78 Accepts]: Start accepts. Automaton has 937 states and 1173 transitions. Word has length 160 [2024-11-22 13:02:05,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:02:05,272 INFO L471 AbstractCegarLoop]: Abstraction has 937 states and 1173 transitions. [2024-11-22 13:02:05,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 11 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:02:05,272 INFO L276 IsEmpty]: Start isEmpty. Operand 937 states and 1173 transitions. [2024-11-22 13:02:05,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-22 13:02:05,274 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:02:05,274 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:02:05,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-22 13:02:05,275 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:02:05,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:02:05,275 INFO L85 PathProgramCache]: Analyzing trace with hash -877535951, now seen corresponding path program 1 times [2024-11-22 13:02:05,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:02:05,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306225451] [2024-11-22 13:02:05,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:02:05,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:02:05,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:02:05,499 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 13:02:05,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:02:05,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306225451] [2024-11-22 13:02:05,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306225451] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:02:05,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:02:05,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 13:02:05,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356439364] [2024-11-22 13:02:05,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:02:05,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 13:02:05,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:02:05,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 13:02:05,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 13:02:05,502 INFO L87 Difference]: Start difference. First operand 937 states and 1173 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:02:05,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:02:05,636 INFO L93 Difference]: Finished difference Result 1997 states and 2522 transitions. [2024-11-22 13:02:05,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 13:02:05,636 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 160 [2024-11-22 13:02:05,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:02:05,641 INFO L225 Difference]: With dead ends: 1997 [2024-11-22 13:02:05,641 INFO L226 Difference]: Without dead ends: 1063 [2024-11-22 13:02:05,643 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-22 13:02:05,643 INFO L432 NwaCegarLoop]: 290 mSDtfsCounter, 141 mSDsluCounter, 708 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 998 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 13:02:05,643 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 998 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 13:02:05,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1063 states. [2024-11-22 13:02:05,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1063 to 898. [2024-11-22 13:02:05,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 898 states, 814 states have (on average 1.21990171990172) internal successors, (993), 819 states have internal predecessors, (993), 66 states have call successors, (66), 17 states have call predecessors, (66), 17 states have return successors, (66), 61 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-22 13:02:05,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 898 states to 898 states and 1125 transitions. [2024-11-22 13:02:05,702 INFO L78 Accepts]: Start accepts. Automaton has 898 states and 1125 transitions. Word has length 160 [2024-11-22 13:02:05,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:02:05,703 INFO L471 AbstractCegarLoop]: Abstraction has 898 states and 1125 transitions. [2024-11-22 13:02:05,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:02:05,703 INFO L276 IsEmpty]: Start isEmpty. Operand 898 states and 1125 transitions. [2024-11-22 13:02:05,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-22 13:02:05,705 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:02:05,705 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:02:05,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-22 13:02:05,706 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:02:05,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:02:05,706 INFO L85 PathProgramCache]: Analyzing trace with hash -256326258, now seen corresponding path program 1 times [2024-11-22 13:02:05,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:02:05,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938053680] [2024-11-22 13:02:05,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:02:05,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:02:05,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:02:05,853 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 13:02:05,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:02:05,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938053680] [2024-11-22 13:02:05,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938053680] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:02:05,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:02:05,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 13:02:05,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66816108] [2024-11-22 13:02:05,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:02:05,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 13:02:05,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:02:05,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 13:02:05,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 13:02:05,856 INFO L87 Difference]: Start difference. First operand 898 states and 1125 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:02:06,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:02:06,022 INFO L93 Difference]: Finished difference Result 2549 states and 3196 transitions. [2024-11-22 13:02:06,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 13:02:06,022 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 161 [2024-11-22 13:02:06,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:02:06,029 INFO L225 Difference]: With dead ends: 2549 [2024-11-22 13:02:06,029 INFO L226 Difference]: Without dead ends: 1654 [2024-11-22 13:02:06,031 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 13:02:06,031 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 112 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 13:02:06,032 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 435 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 13:02:06,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1654 states. [2024-11-22 13:02:06,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1654 to 1210. [2024-11-22 13:02:06,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1210 states, 1101 states have (on average 1.2270663033605813) internal successors, (1351), 1106 states have internal predecessors, (1351), 86 states have call successors, (86), 22 states have call predecessors, (86), 22 states have return successors, (86), 81 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-22 13:02:06,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1210 states to 1210 states and 1523 transitions. [2024-11-22 13:02:06,104 INFO L78 Accepts]: Start accepts. Automaton has 1210 states and 1523 transitions. Word has length 161 [2024-11-22 13:02:06,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:02:06,105 INFO L471 AbstractCegarLoop]: Abstraction has 1210 states and 1523 transitions. [2024-11-22 13:02:06,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:02:06,105 INFO L276 IsEmpty]: Start isEmpty. Operand 1210 states and 1523 transitions. [2024-11-22 13:02:06,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-22 13:02:06,107 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:02:06,108 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:02:06,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-22 13:02:06,108 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:02:06,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:02:06,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1267443508, now seen corresponding path program 1 times [2024-11-22 13:02:06,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:02:06,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077828069] [2024-11-22 13:02:06,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:02:06,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:02:06,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:02:06,377 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 13:02:06,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:02:06,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077828069] [2024-11-22 13:02:06,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077828069] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:02:06,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:02:06,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 13:02:06,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158420649] [2024-11-22 13:02:06,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:02:06,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 13:02:06,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:02:06,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 13:02:06,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 13:02:06,380 INFO L87 Difference]: Start difference. First operand 1210 states and 1523 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:02:06,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:02:06,539 INFO L93 Difference]: Finished difference Result 2749 states and 3460 transitions. [2024-11-22 13:02:06,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 13:02:06,540 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 161 [2024-11-22 13:02:06,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:02:06,547 INFO L225 Difference]: With dead ends: 2749 [2024-11-22 13:02:06,548 INFO L226 Difference]: Without dead ends: 1844 [2024-11-22 13:02:06,550 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 13:02:06,551 INFO L432 NwaCegarLoop]: 211 mSDtfsCounter, 82 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 707 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 13:02:06,551 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 707 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 13:02:06,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1844 states. [2024-11-22 13:02:06,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1844 to 1440. [2024-11-22 13:02:06,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1440 states, 1331 states have (on average 1.2299023290758828) internal successors, (1637), 1336 states have internal predecessors, (1637), 86 states have call successors, (86), 22 states have call predecessors, (86), 22 states have return successors, (86), 81 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-22 13:02:06,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1440 states to 1440 states and 1809 transitions. [2024-11-22 13:02:06,639 INFO L78 Accepts]: Start accepts. Automaton has 1440 states and 1809 transitions. Word has length 161 [2024-11-22 13:02:06,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:02:06,639 INFO L471 AbstractCegarLoop]: Abstraction has 1440 states and 1809 transitions. [2024-11-22 13:02:06,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:02:06,640 INFO L276 IsEmpty]: Start isEmpty. Operand 1440 states and 1809 transitions. [2024-11-22 13:02:06,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-22 13:02:06,642 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:02:06,642 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:02:06,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-22 13:02:06,643 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:02:06,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:02:06,643 INFO L85 PathProgramCache]: Analyzing trace with hash 22429252, now seen corresponding path program 1 times [2024-11-22 13:02:06,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:02:06,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280091244] [2024-11-22 13:02:06,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:02:06,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:02:06,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:02:06,904 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 13:02:06,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:02:06,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280091244] [2024-11-22 13:02:06,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280091244] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:02:06,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:02:06,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 13:02:06,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75177630] [2024-11-22 13:02:06,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:02:06,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 13:02:06,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:02:06,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 13:02:06,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 13:02:06,906 INFO L87 Difference]: Start difference. First operand 1440 states and 1809 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:02:07,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:02:07,119 INFO L93 Difference]: Finished difference Result 2770 states and 3494 transitions. [2024-11-22 13:02:07,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 13:02:07,121 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 162 [2024-11-22 13:02:07,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:02:07,128 INFO L225 Difference]: With dead ends: 2770 [2024-11-22 13:02:07,128 INFO L226 Difference]: Without dead ends: 1627 [2024-11-22 13:02:07,130 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-22 13:02:07,131 INFO L432 NwaCegarLoop]: 275 mSDtfsCounter, 136 mSDsluCounter, 905 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 1180 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 13:02:07,132 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 1180 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 13:02:07,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1627 states. [2024-11-22 13:02:07,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1627 to 1440. [2024-11-22 13:02:07,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1440 states, 1331 states have (on average 1.2178812922614575) internal successors, (1621), 1336 states have internal predecessors, (1621), 86 states have call successors, (86), 22 states have call predecessors, (86), 22 states have return successors, (86), 81 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-22 13:02:07,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1440 states to 1440 states and 1793 transitions. [2024-11-22 13:02:07,235 INFO L78 Accepts]: Start accepts. Automaton has 1440 states and 1793 transitions. Word has length 162 [2024-11-22 13:02:07,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:02:07,236 INFO L471 AbstractCegarLoop]: Abstraction has 1440 states and 1793 transitions. [2024-11-22 13:02:07,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:02:07,236 INFO L276 IsEmpty]: Start isEmpty. Operand 1440 states and 1793 transitions. [2024-11-22 13:02:07,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-22 13:02:07,239 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:02:07,239 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:02:07,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-22 13:02:07,240 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:02:07,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:02:07,241 INFO L85 PathProgramCache]: Analyzing trace with hash 100967454, now seen corresponding path program 1 times [2024-11-22 13:02:07,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:02:07,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936991593] [2024-11-22 13:02:07,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:02:07,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:02:07,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:02:08,520 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 54 proven. 54 refuted. 0 times theorem prover too weak. 652 trivial. 0 not checked. [2024-11-22 13:02:08,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:02:08,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936991593] [2024-11-22 13:02:08,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936991593] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 13:02:08,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1971379853] [2024-11-22 13:02:08,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:02:08,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 13:02:08,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 13:02:08,524 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 13:02:08,525 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-22 13:02:08,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:02:08,813 INFO L255 TraceCheckSpWp]: Trace formula consists of 646 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-22 13:02:08,818 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 13:02:09,685 INFO L349 Elim1Store]: treesize reduction 27, result has 20.6 percent of original size [2024-11-22 13:02:09,685 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 21 treesize of output 22 [2024-11-22 13:02:09,933 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 13:02:09,934 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 13:02:09,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1971379853] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:02:09,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 13:02:09,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [13] total 24 [2024-11-22 13:02:09,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469350342] [2024-11-22 13:02:09,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:02:09,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-22 13:02:09,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:02:09,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-22 13:02:09,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=500, Unknown=0, NotChecked=0, Total=552 [2024-11-22 13:02:09,936 INFO L87 Difference]: Start difference. First operand 1440 states and 1793 transitions. Second operand has 13 states, 13 states have (on average 5.0) internal successors, (65), 12 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:02:10,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:02:10,739 INFO L93 Difference]: Finished difference Result 3192 states and 3983 transitions. [2024-11-22 13:02:10,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-22 13:02:10,740 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.0) internal successors, (65), 12 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 162 [2024-11-22 13:02:10,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:02:10,747 INFO L225 Difference]: With dead ends: 3192 [2024-11-22 13:02:10,747 INFO L226 Difference]: Without dead ends: 2067 [2024-11-22 13:02:10,750 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=132, Invalid=990, Unknown=0, NotChecked=0, Total=1122 [2024-11-22 13:02:10,751 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 315 mSDsluCounter, 1173 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 1316 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 13:02:10,751 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [315 Valid, 1316 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 13:02:10,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2067 states. [2024-11-22 13:02:10,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2067 to 1940. [2024-11-22 13:02:10,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1940 states, 1748 states have (on average 1.2019450800915332) internal successors, (2101), 1758 states have internal predecessors, (2101), 152 states have call successors, (152), 39 states have call predecessors, (152), 39 states have return successors, (152), 142 states have call predecessors, (152), 152 states have call successors, (152) [2024-11-22 13:02:10,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1940 states to 1940 states and 2405 transitions. [2024-11-22 13:02:10,897 INFO L78 Accepts]: Start accepts. Automaton has 1940 states and 2405 transitions. Word has length 162 [2024-11-22 13:02:10,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:02:10,897 INFO L471 AbstractCegarLoop]: Abstraction has 1940 states and 2405 transitions. [2024-11-22 13:02:10,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.0) internal successors, (65), 12 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:02:10,898 INFO L276 IsEmpty]: Start isEmpty. Operand 1940 states and 2405 transitions. [2024-11-22 13:02:10,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-22 13:02:10,901 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:02:10,901 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:02:10,911 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-22 13:02:11,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-22 13:02:11,106 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:02:11,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:02:11,106 INFO L85 PathProgramCache]: Analyzing trace with hash -708379172, now seen corresponding path program 1 times [2024-11-22 13:02:11,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:02:11,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368820203] [2024-11-22 13:02:11,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:02:11,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:02:11,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:02:11,307 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 13:02:11,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:02:11,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368820203] [2024-11-22 13:02:11,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368820203] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:02:11,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:02:11,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 13:02:11,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135845139] [2024-11-22 13:02:11,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:02:11,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 13:02:11,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:02:11,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 13:02:11,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 13:02:11,310 INFO L87 Difference]: Start difference. First operand 1940 states and 2405 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:02:11,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:02:11,544 INFO L93 Difference]: Finished difference Result 4615 states and 5674 transitions. [2024-11-22 13:02:11,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 13:02:11,545 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 162 [2024-11-22 13:02:11,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:02:11,555 INFO L225 Difference]: With dead ends: 4615 [2024-11-22 13:02:11,556 INFO L226 Difference]: Without dead ends: 2990 [2024-11-22 13:02:11,559 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-22 13:02:11,559 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 53 mSDsluCounter, 512 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 650 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 13:02:11,559 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 650 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 13:02:11,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2990 states. [2024-11-22 13:02:11,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2990 to 2862. [2024-11-22 13:02:11,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2862 states, 2670 states have (on average 1.195880149812734) internal successors, (3193), 2680 states have internal predecessors, (3193), 152 states have call successors, (152), 39 states have call predecessors, (152), 39 states have return successors, (152), 142 states have call predecessors, (152), 152 states have call successors, (152) [2024-11-22 13:02:11,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2862 states to 2862 states and 3497 transitions. [2024-11-22 13:02:11,694 INFO L78 Accepts]: Start accepts. Automaton has 2862 states and 3497 transitions. Word has length 162 [2024-11-22 13:02:11,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:02:11,694 INFO L471 AbstractCegarLoop]: Abstraction has 2862 states and 3497 transitions. [2024-11-22 13:02:11,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:02:11,694 INFO L276 IsEmpty]: Start isEmpty. Operand 2862 states and 3497 transitions. [2024-11-22 13:02:11,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-22 13:02:11,698 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:02:11,699 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:02:11,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-22 13:02:11,699 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:02:11,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:02:11,700 INFO L85 PathProgramCache]: Analyzing trace with hash 2109697224, now seen corresponding path program 1 times [2024-11-22 13:02:11,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:02:11,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323026161] [2024-11-22 13:02:11,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:02:11,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:02:11,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:02:12,089 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 13:02:12,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:02:12,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323026161] [2024-11-22 13:02:12,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323026161] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:02:12,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:02:12,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 13:02:12,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730569339] [2024-11-22 13:02:12,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:02:12,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 13:02:12,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:02:12,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 13:02:12,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 13:02:12,095 INFO L87 Difference]: Start difference. First operand 2862 states and 3497 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:02:12,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:02:12,520 INFO L93 Difference]: Finished difference Result 5688 states and 6973 transitions. [2024-11-22 13:02:12,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 13:02:12,520 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 162 [2024-11-22 13:02:12,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:02:12,531 INFO L225 Difference]: With dead ends: 5688 [2024-11-22 13:02:12,532 INFO L226 Difference]: Without dead ends: 3235 [2024-11-22 13:02:12,535 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-22 13:02:12,535 INFO L432 NwaCegarLoop]: 271 mSDtfsCounter, 283 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 819 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 13:02:12,536 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 819 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 13:02:12,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3235 states. [2024-11-22 13:02:12,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3235 to 2981. [2024-11-22 13:02:12,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2981 states, 2753 states have (on average 1.1565564838358156) internal successors, (3184), 2765 states have internal predecessors, (3184), 180 states have call successors, (180), 47 states have call predecessors, (180), 47 states have return successors, (180), 168 states have call predecessors, (180), 180 states have call successors, (180) [2024-11-22 13:02:12,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2981 states to 2981 states and 3544 transitions. [2024-11-22 13:02:12,702 INFO L78 Accepts]: Start accepts. Automaton has 2981 states and 3544 transitions. Word has length 162 [2024-11-22 13:02:12,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:02:12,703 INFO L471 AbstractCegarLoop]: Abstraction has 2981 states and 3544 transitions. [2024-11-22 13:02:12,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:02:12,703 INFO L276 IsEmpty]: Start isEmpty. Operand 2981 states and 3544 transitions. [2024-11-22 13:02:12,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-22 13:02:12,708 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:02:12,708 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:02:12,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-22 13:02:12,709 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:02:12,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:02:12,709 INFO L85 PathProgramCache]: Analyzing trace with hash 163007068, now seen corresponding path program 1 times [2024-11-22 13:02:12,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:02:12,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381985000] [2024-11-22 13:02:12,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:02:12,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:02:12,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:02:12,912 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 13:02:12,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:02:12,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381985000] [2024-11-22 13:02:12,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381985000] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:02:12,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:02:12,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 13:02:12,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147519459] [2024-11-22 13:02:12,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:02:12,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 13:02:12,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:02:12,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 13:02:12,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 13:02:12,914 INFO L87 Difference]: Start difference. First operand 2981 states and 3544 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:02:13,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:02:13,182 INFO L93 Difference]: Finished difference Result 5043 states and 5988 transitions. [2024-11-22 13:02:13,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 13:02:13,186 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 162 [2024-11-22 13:02:13,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:02:13,202 INFO L225 Difference]: With dead ends: 5043 [2024-11-22 13:02:13,202 INFO L226 Difference]: Without dead ends: 3130 [2024-11-22 13:02:13,206 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-22 13:02:13,208 INFO L432 NwaCegarLoop]: 198 mSDtfsCounter, 51 mSDsluCounter, 670 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 868 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 13:02:13,209 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 868 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 13:02:13,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3130 states. [2024-11-22 13:02:13,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3130 to 2981. [2024-11-22 13:02:13,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2981 states, 2753 states have (on average 1.154013803123865) internal successors, (3177), 2765 states have internal predecessors, (3177), 180 states have call successors, (180), 47 states have call predecessors, (180), 47 states have return successors, (180), 168 states have call predecessors, (180), 180 states have call successors, (180) [2024-11-22 13:02:13,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2981 states to 2981 states and 3537 transitions. [2024-11-22 13:02:13,509 INFO L78 Accepts]: Start accepts. Automaton has 2981 states and 3537 transitions. Word has length 162 [2024-11-22 13:02:13,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:02:13,510 INFO L471 AbstractCegarLoop]: Abstraction has 2981 states and 3537 transitions. [2024-11-22 13:02:13,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:02:13,510 INFO L276 IsEmpty]: Start isEmpty. Operand 2981 states and 3537 transitions. [2024-11-22 13:02:13,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-22 13:02:13,518 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:02:13,519 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:02:13,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-22 13:02:13,519 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:02:13,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:02:13,520 INFO L85 PathProgramCache]: Analyzing trace with hash -646339558, now seen corresponding path program 1 times [2024-11-22 13:02:13,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:02:13,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775231014] [2024-11-22 13:02:13,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:02:13,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:02:13,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:02:14,631 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 54 proven. 54 refuted. 0 times theorem prover too weak. 652 trivial. 0 not checked. [2024-11-22 13:02:14,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:02:14,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775231014] [2024-11-22 13:02:14,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775231014] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 13:02:14,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1141588960] [2024-11-22 13:02:14,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:02:14,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 13:02:14,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 13:02:14,634 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 13:02:14,637 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-22 13:02:14,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:02:14,898 INFO L255 TraceCheckSpWp]: Trace formula consists of 646 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-22 13:02:14,903 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 13:02:15,567 INFO L349 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2024-11-22 13:02:15,568 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 81 treesize of output 84 [2024-11-22 13:02:15,610 INFO L349 Elim1Store]: treesize reduction 48, result has 15.8 percent of original size [2024-11-22 13:02:15,610 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 82 treesize of output 101 [2024-11-22 13:02:15,642 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 22 treesize of output 11 [2024-11-22 13:02:15,863 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 65 treesize of output 53 [2024-11-22 13:02:15,915 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 59 treesize of output 39 [2024-11-22 13:02:16,021 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 13:02:16,021 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 13:02:16,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1141588960] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:02:16,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 13:02:16,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [13] total 25 [2024-11-22 13:02:16,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303907845] [2024-11-22 13:02:16,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:02:16,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-22 13:02:16,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:02:16,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-22 13:02:16,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=541, Unknown=0, NotChecked=0, Total=600 [2024-11-22 13:02:16,024 INFO L87 Difference]: Start difference. First operand 2981 states and 3537 transitions. Second operand has 14 states, 14 states have (on average 4.642857142857143) internal successors, (65), 13 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:02:17,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:02:17,108 INFO L93 Difference]: Finished difference Result 5854 states and 6933 transitions. [2024-11-22 13:02:17,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-22 13:02:17,109 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.642857142857143) internal successors, (65), 13 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 162 [2024-11-22 13:02:17,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:02:17,123 INFO L225 Difference]: With dead ends: 5854 [2024-11-22 13:02:17,124 INFO L226 Difference]: Without dead ends: 3941 [2024-11-22 13:02:17,127 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=120, Invalid=1070, Unknown=0, NotChecked=0, Total=1190 [2024-11-22 13:02:17,128 INFO L432 NwaCegarLoop]: 250 mSDtfsCounter, 252 mSDsluCounter, 1625 mSDsCounter, 0 mSdLazyCounter, 597 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 1875 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 13:02:17,128 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 1875 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 597 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 13:02:17,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3941 states. [2024-11-22 13:02:17,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3941 to 3922. [2024-11-22 13:02:17,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3922 states, 3595 states have (on average 1.1510431154381084) internal successors, (4138), 3614 states have internal predecessors, (4138), 258 states have call successors, (258), 68 states have call predecessors, (258), 68 states have return successors, (258), 239 states have call predecessors, (258), 258 states have call successors, (258) [2024-11-22 13:02:17,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3922 states to 3922 states and 4654 transitions. [2024-11-22 13:02:17,352 INFO L78 Accepts]: Start accepts. Automaton has 3922 states and 4654 transitions. Word has length 162 [2024-11-22 13:02:17,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:02:17,353 INFO L471 AbstractCegarLoop]: Abstraction has 3922 states and 4654 transitions. [2024-11-22 13:02:17,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.642857142857143) internal successors, (65), 13 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:02:17,353 INFO L276 IsEmpty]: Start isEmpty. Operand 3922 states and 4654 transitions. [2024-11-22 13:02:17,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-22 13:02:17,357 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:02:17,357 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:02:17,367 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-22 13:02:17,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-22 13:02:17,558 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:02:17,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:02:17,559 INFO L85 PathProgramCache]: Analyzing trace with hash -331515133, now seen corresponding path program 1 times [2024-11-22 13:02:17,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:02:17,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457270649] [2024-11-22 13:02:17,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:02:17,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:02:17,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:02:18,339 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 13:02:18,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:02:18,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457270649] [2024-11-22 13:02:18,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457270649] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:02:18,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:02:18,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-22 13:02:18,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023507538] [2024-11-22 13:02:18,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:02:18,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-22 13:02:18,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:02:18,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-22 13:02:18,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-22 13:02:18,342 INFO L87 Difference]: Start difference. First operand 3922 states and 4654 transitions. Second operand has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 12 states have internal predecessors, (65), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-22 13:02:19,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:02:19,051 INFO L93 Difference]: Finished difference Result 6186 states and 7347 transitions. [2024-11-22 13:02:19,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-22 13:02:19,052 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 12 states have internal predecessors, (65), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) Word has length 162 [2024-11-22 13:02:19,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:02:19,067 INFO L225 Difference]: With dead ends: 6186 [2024-11-22 13:02:19,067 INFO L226 Difference]: Without dead ends: 3914 [2024-11-22 13:02:19,073 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=75, Invalid=305, Unknown=0, NotChecked=0, Total=380 [2024-11-22 13:02:19,073 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 293 mSDsluCounter, 818 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 947 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 13:02:19,074 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [293 Valid, 947 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 13:02:19,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3914 states. [2024-11-22 13:02:19,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3914 to 3794. [2024-11-22 13:02:19,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3794 states, 3467 states have (on average 1.1468128064609173) internal successors, (3976), 3486 states have internal predecessors, (3976), 258 states have call successors, (258), 68 states have call predecessors, (258), 68 states have return successors, (258), 239 states have call predecessors, (258), 258 states have call successors, (258) [2024-11-22 13:02:19,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3794 states to 3794 states and 4492 transitions. [2024-11-22 13:02:19,425 INFO L78 Accepts]: Start accepts. Automaton has 3794 states and 4492 transitions. Word has length 162 [2024-11-22 13:02:19,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:02:19,426 INFO L471 AbstractCegarLoop]: Abstraction has 3794 states and 4492 transitions. [2024-11-22 13:02:19,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 12 states have internal predecessors, (65), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-22 13:02:19,427 INFO L276 IsEmpty]: Start isEmpty. Operand 3794 states and 4492 transitions. [2024-11-22 13:02:19,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-22 13:02:19,431 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:02:19,432 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:02:19,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-22 13:02:19,432 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:02:19,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:02:19,433 INFO L85 PathProgramCache]: Analyzing trace with hash -1982343074, now seen corresponding path program 1 times [2024-11-22 13:02:19,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:02:19,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286685265] [2024-11-22 13:02:19,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:02:19,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:02:19,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:02:20,237 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 54 proven. 54 refuted. 0 times theorem prover too weak. 652 trivial. 0 not checked. [2024-11-22 13:02:20,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:02:20,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286685265] [2024-11-22 13:02:20,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286685265] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 13:02:20,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1208097339] [2024-11-22 13:02:20,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:02:20,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 13:02:20,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 13:02:20,241 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 13:02:20,242 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-22 13:02:20,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:02:20,494 INFO L255 TraceCheckSpWp]: Trace formula consists of 646 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-22 13:02:20,500 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 13:02:20,637 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 15 treesize of output 1 [2024-11-22 13:02:21,044 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 7 treesize of output 3 [2024-11-22 13:02:21,139 INFO L349 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2024-11-22 13:02:21,140 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 73 treesize of output 76 [2024-11-22 13:02:21,187 INFO L349 Elim1Store]: treesize reduction 44, result has 17.0 percent of original size [2024-11-22 13:02:21,187 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 74 treesize of output 93 [2024-11-22 13:02:21,227 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 22 treesize of output 11 [2024-11-22 13:02:21,435 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 57 treesize of output 45 [2024-11-22 13:02:21,476 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 49 treesize of output 29 [2024-11-22 13:02:21,553 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 616 trivial. 0 not checked. [2024-11-22 13:02:21,553 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 13:02:21,840 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 13:02:21,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1208097339] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-22 13:02:21,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-22 13:02:21,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [13, 11] total 24 [2024-11-22 13:02:21,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292929413] [2024-11-22 13:02:21,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:02:21,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 13:02:21,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:02:21,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 13:02:21,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=498, Unknown=0, NotChecked=0, Total=552 [2024-11-22 13:02:21,842 INFO L87 Difference]: Start difference. First operand 3794 states and 4492 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:02:22,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:02:22,270 INFO L93 Difference]: Finished difference Result 5784 states and 6841 transitions. [2024-11-22 13:02:22,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 13:02:22,271 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 162 [2024-11-22 13:02:22,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:02:22,281 INFO L225 Difference]: With dead ends: 5784 [2024-11-22 13:02:22,282 INFO L226 Difference]: Without dead ends: 3955 [2024-11-22 13:02:22,286 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 316 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=72, Invalid=684, Unknown=0, NotChecked=0, Total=756 [2024-11-22 13:02:22,287 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 53 mSDsluCounter, 839 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 988 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 13:02:22,287 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 988 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 13:02:22,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3955 states. [2024-11-22 13:02:22,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3955 to 3264. [2024-11-22 13:02:22,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3264 states, 3038 states have (on average 1.1497695852534562) internal successors, (3493), 3051 states have internal predecessors, (3493), 178 states have call successors, (178), 47 states have call predecessors, (178), 47 states have return successors, (178), 165 states have call predecessors, (178), 178 states have call successors, (178) [2024-11-22 13:02:22,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3264 states to 3264 states and 3849 transitions. [2024-11-22 13:02:22,522 INFO L78 Accepts]: Start accepts. Automaton has 3264 states and 3849 transitions. Word has length 162 [2024-11-22 13:02:22,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:02:22,523 INFO L471 AbstractCegarLoop]: Abstraction has 3264 states and 3849 transitions. [2024-11-22 13:02:22,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:02:22,523 INFO L276 IsEmpty]: Start isEmpty. Operand 3264 states and 3849 transitions. [2024-11-22 13:02:22,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-22 13:02:22,527 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:02:22,527 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:02:22,539 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-22 13:02:22,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 13:02:22,728 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:02:22,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:02:22,729 INFO L85 PathProgramCache]: Analyzing trace with hash 756756521, now seen corresponding path program 1 times [2024-11-22 13:02:22,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:02:22,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377116871] [2024-11-22 13:02:22,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:02:22,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:02:22,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:02:23,317 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 13:02:23,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:02:23,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377116871] [2024-11-22 13:02:23,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377116871] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:02:23,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:02:23,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-22 13:02:23,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639973765] [2024-11-22 13:02:23,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:02:23,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 13:02:23,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:02:23,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 13:02:23,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-22 13:02:23,320 INFO L87 Difference]: Start difference. First operand 3264 states and 3849 transitions. Second operand has 10 states, 10 states have (on average 6.7) internal successors, (67), 10 states have internal predecessors, (67), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:02:23,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:02:23,688 INFO L93 Difference]: Finished difference Result 5541 states and 6573 transitions. [2024-11-22 13:02:23,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-22 13:02:23,689 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.7) internal successors, (67), 10 states have internal predecessors, (67), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 164 [2024-11-22 13:02:23,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:02:23,697 INFO L225 Difference]: With dead ends: 5541 [2024-11-22 13:02:23,697 INFO L226 Difference]: Without dead ends: 3597 [2024-11-22 13:02:23,701 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2024-11-22 13:02:23,702 INFO L432 NwaCegarLoop]: 260 mSDtfsCounter, 128 mSDsluCounter, 1868 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 2128 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 13:02:23,702 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 2128 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 13:02:23,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3597 states. [2024-11-22 13:02:23,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3597 to 3288. [2024-11-22 13:02:23,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3288 states, 3062 states have (on average 1.1485956890920967) internal successors, (3517), 3075 states have internal predecessors, (3517), 178 states have call successors, (178), 47 states have call predecessors, (178), 47 states have return successors, (178), 165 states have call predecessors, (178), 178 states have call successors, (178) [2024-11-22 13:02:23,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3288 states to 3288 states and 3873 transitions. [2024-11-22 13:02:23,926 INFO L78 Accepts]: Start accepts. Automaton has 3288 states and 3873 transitions. Word has length 164 [2024-11-22 13:02:23,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:02:23,926 INFO L471 AbstractCegarLoop]: Abstraction has 3288 states and 3873 transitions. [2024-11-22 13:02:23,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.7) internal successors, (67), 10 states have internal predecessors, (67), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:02:23,926 INFO L276 IsEmpty]: Start isEmpty. Operand 3288 states and 3873 transitions. [2024-11-22 13:02:23,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-22 13:02:23,930 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:02:23,931 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:02:23,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-22 13:02:23,931 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:02:23,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:02:23,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1457821099, now seen corresponding path program 1 times [2024-11-22 13:02:23,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:02:23,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294573649] [2024-11-22 13:02:23,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:02:23,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:02:23,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:02:24,163 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 13:02:24,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:02:24,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294573649] [2024-11-22 13:02:24,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294573649] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:02:24,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:02:24,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 13:02:24,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952724178] [2024-11-22 13:02:24,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:02:24,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 13:02:24,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:02:24,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 13:02:24,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 13:02:24,166 INFO L87 Difference]: Start difference. First operand 3288 states and 3873 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:02:24,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:02:24,412 INFO L93 Difference]: Finished difference Result 5458 states and 6435 transitions. [2024-11-22 13:02:24,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 13:02:24,412 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 164 [2024-11-22 13:02:24,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:02:24,420 INFO L225 Difference]: With dead ends: 5458 [2024-11-22 13:02:24,420 INFO L226 Difference]: Without dead ends: 3482 [2024-11-22 13:02:24,424 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 13:02:24,425 INFO L432 NwaCegarLoop]: 238 mSDtfsCounter, 88 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 752 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 13:02:24,425 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 752 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 13:02:24,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3482 states. [2024-11-22 13:02:24,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3482 to 3270. [2024-11-22 13:02:24,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3270 states, 3044 states have (on average 1.1475032851511169) internal successors, (3493), 3057 states have internal predecessors, (3493), 178 states have call successors, (178), 47 states have call predecessors, (178), 47 states have return successors, (178), 165 states have call predecessors, (178), 178 states have call successors, (178) [2024-11-22 13:02:24,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3270 states to 3270 states and 3849 transitions. [2024-11-22 13:02:24,630 INFO L78 Accepts]: Start accepts. Automaton has 3270 states and 3849 transitions. Word has length 164 [2024-11-22 13:02:24,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:02:24,631 INFO L471 AbstractCegarLoop]: Abstraction has 3270 states and 3849 transitions. [2024-11-22 13:02:24,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:02:24,631 INFO L276 IsEmpty]: Start isEmpty. Operand 3270 states and 3849 transitions. [2024-11-22 13:02:24,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-22 13:02:24,636 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:02:24,636 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:02:24,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-22 13:02:24,637 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:02:24,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:02:24,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1047824368, now seen corresponding path program 1 times [2024-11-22 13:02:24,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:02:24,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757402830] [2024-11-22 13:02:24,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:02:24,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:02:24,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:02:24,939 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-22 13:02:24,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:02:24,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757402830] [2024-11-22 13:02:24,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757402830] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 13:02:24,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [924231675] [2024-11-22 13:02:24,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:02:24,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 13:02:24,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 13:02:24,943 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 13:02:24,944 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-22 13:02:25,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:02:25,248 INFO L255 TraceCheckSpWp]: Trace formula consists of 654 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-22 13:02:25,252 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 13:02:25,291 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 13:02:25,291 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 13:02:25,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [924231675] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:02:25,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 13:02:25,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 11 [2024-11-22 13:02:25,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112168189] [2024-11-22 13:02:25,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:02:25,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 13:02:25,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:02:25,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 13:02:25,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-22 13:02:25,293 INFO L87 Difference]: Start difference. First operand 3270 states and 3849 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:02:25,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:02:25,466 INFO L93 Difference]: Finished difference Result 3328 states and 3920 transitions. [2024-11-22 13:02:25,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 13:02:25,467 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 164 [2024-11-22 13:02:25,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:02:25,474 INFO L225 Difference]: With dead ends: 3328 [2024-11-22 13:02:25,474 INFO L226 Difference]: Without dead ends: 3326 [2024-11-22 13:02:25,476 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-22 13:02:25,476 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 0 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 730 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 13:02:25,476 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 730 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 13:02:25,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3326 states. [2024-11-22 13:02:25,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3326 to 3326. [2024-11-22 13:02:25,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3326 states, 3100 states have (on average 1.1448387096774193) internal successors, (3549), 3113 states have internal predecessors, (3549), 178 states have call successors, (178), 47 states have call predecessors, (178), 47 states have return successors, (178), 165 states have call predecessors, (178), 178 states have call successors, (178) [2024-11-22 13:02:25,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3326 states to 3326 states and 3905 transitions. [2024-11-22 13:02:25,682 INFO L78 Accepts]: Start accepts. Automaton has 3326 states and 3905 transitions. Word has length 164 [2024-11-22 13:02:25,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:02:25,683 INFO L471 AbstractCegarLoop]: Abstraction has 3326 states and 3905 transitions. [2024-11-22 13:02:25,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:02:25,683 INFO L276 IsEmpty]: Start isEmpty. Operand 3326 states and 3905 transitions. [2024-11-22 13:02:25,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-22 13:02:25,686 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:02:25,686 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:02:25,696 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-22 13:02:25,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-11-22 13:02:25,887 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:02:25,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:02:25,887 INFO L85 PathProgramCache]: Analyzing trace with hash -2135546323, now seen corresponding path program 1 times [2024-11-22 13:02:25,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:02:25,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947754072] [2024-11-22 13:02:25,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:02:25,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:02:25,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:02:26,662 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 13:02:26,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:02:26,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947754072] [2024-11-22 13:02:26,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947754072] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:02:26,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:02:26,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-22 13:02:26,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537809887] [2024-11-22 13:02:26,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:02:26,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-22 13:02:26,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:02:26,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-22 13:02:26,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-22 13:02:26,666 INFO L87 Difference]: Start difference. First operand 3326 states and 3905 transitions. Second operand has 11 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:02:27,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:02:27,297 INFO L93 Difference]: Finished difference Result 5644 states and 6632 transitions. [2024-11-22 13:02:27,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-22 13:02:27,298 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 164 [2024-11-22 13:02:27,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:02:27,309 INFO L225 Difference]: With dead ends: 5644 [2024-11-22 13:02:27,310 INFO L226 Difference]: Without dead ends: 3656 [2024-11-22 13:02:27,314 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2024-11-22 13:02:27,314 INFO L432 NwaCegarLoop]: 237 mSDtfsCounter, 224 mSDsluCounter, 1390 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 1627 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 13:02:27,315 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 1627 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 13:02:27,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3656 states. [2024-11-22 13:02:27,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3656 to 3196. [2024-11-22 13:02:27,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3196 states, 2970 states have (on average 1.144107744107744) internal successors, (3398), 2983 states have internal predecessors, (3398), 178 states have call successors, (178), 47 states have call predecessors, (178), 47 states have return successors, (178), 165 states have call predecessors, (178), 178 states have call successors, (178) [2024-11-22 13:02:27,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3196 states to 3196 states and 3754 transitions. [2024-11-22 13:02:27,519 INFO L78 Accepts]: Start accepts. Automaton has 3196 states and 3754 transitions. Word has length 164 [2024-11-22 13:02:27,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:02:27,519 INFO L471 AbstractCegarLoop]: Abstraction has 3196 states and 3754 transitions. [2024-11-22 13:02:27,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:02:27,520 INFO L276 IsEmpty]: Start isEmpty. Operand 3196 states and 3754 transitions. [2024-11-22 13:02:27,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-22 13:02:27,523 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:02:27,523 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:02:27,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-22 13:02:27,523 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:02:27,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:02:27,524 INFO L85 PathProgramCache]: Analyzing trace with hash -588988097, now seen corresponding path program 1 times [2024-11-22 13:02:27,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:02:27,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440340955] [2024-11-22 13:02:27,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:02:27,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:02:27,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:02:28,353 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 13:02:28,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:02:28,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440340955] [2024-11-22 13:02:28,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440340955] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:02:28,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:02:28,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-22 13:02:28,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306207637] [2024-11-22 13:02:28,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:02:28,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-22 13:02:28,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:02:28,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-22 13:02:28,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-22 13:02:28,355 INFO L87 Difference]: Start difference. First operand 3196 states and 3754 transitions. Second operand has 11 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:02:29,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:02:29,042 INFO L93 Difference]: Finished difference Result 5126 states and 6010 transitions. [2024-11-22 13:02:29,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-22 13:02:29,043 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 164 [2024-11-22 13:02:29,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:02:29,050 INFO L225 Difference]: With dead ends: 5126 [2024-11-22 13:02:29,050 INFO L226 Difference]: Without dead ends: 3216 [2024-11-22 13:02:29,053 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2024-11-22 13:02:29,055 INFO L432 NwaCegarLoop]: 258 mSDtfsCounter, 221 mSDsluCounter, 1754 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 2012 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 13:02:29,055 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 2012 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 13:02:29,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3216 states. [2024-11-22 13:02:29,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3216 to 2968. [2024-11-22 13:02:29,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2968 states, 2772 states have (on average 1.1443001443001444) internal successors, (3172), 2783 states have internal predecessors, (3172), 154 states have call successors, (154), 41 states have call predecessors, (154), 41 states have return successors, (154), 143 states have call predecessors, (154), 154 states have call successors, (154) [2024-11-22 13:02:29,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2968 states to 2968 states and 3480 transitions. [2024-11-22 13:02:29,274 INFO L78 Accepts]: Start accepts. Automaton has 2968 states and 3480 transitions. Word has length 164 [2024-11-22 13:02:29,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:02:29,275 INFO L471 AbstractCegarLoop]: Abstraction has 2968 states and 3480 transitions. [2024-11-22 13:02:29,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:02:29,275 INFO L276 IsEmpty]: Start isEmpty. Operand 2968 states and 3480 transitions. [2024-11-22 13:02:29,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-22 13:02:29,278 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:02:29,278 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:02:29,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-22 13:02:29,278 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:02:29,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:02:29,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1991652549, now seen corresponding path program 1 times [2024-11-22 13:02:29,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:02:29,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268825154] [2024-11-22 13:02:29,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:02:29,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:02:29,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:02:29,843 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 13:02:29,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:02:29,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268825154] [2024-11-22 13:02:29,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268825154] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:02:29,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:02:29,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-22 13:02:29,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214881670] [2024-11-22 13:02:29,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:02:29,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 13:02:29,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:02:29,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 13:02:29,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-22 13:02:29,846 INFO L87 Difference]: Start difference. First operand 2968 states and 3480 transitions. Second operand has 10 states, 10 states have (on average 6.7) internal successors, (67), 10 states have internal predecessors, (67), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:02:30,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:02:30,276 INFO L93 Difference]: Finished difference Result 4878 states and 5744 transitions. [2024-11-22 13:02:30,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-22 13:02:30,277 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.7) internal successors, (67), 10 states have internal predecessors, (67), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 164 [2024-11-22 13:02:30,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:02:30,285 INFO L225 Difference]: With dead ends: 4878 [2024-11-22 13:02:30,285 INFO L226 Difference]: Without dead ends: 3099 [2024-11-22 13:02:30,288 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2024-11-22 13:02:30,289 INFO L432 NwaCegarLoop]: 277 mSDtfsCounter, 128 mSDsluCounter, 1972 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 2249 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 13:02:30,289 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 2249 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 13:02:30,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3099 states. [2024-11-22 13:02:30,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3099 to 2992. [2024-11-22 13:02:30,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2992 states, 2796 states have (on average 1.1430615164520743) internal successors, (3196), 2807 states have internal predecessors, (3196), 154 states have call successors, (154), 41 states have call predecessors, (154), 41 states have return successors, (154), 143 states have call predecessors, (154), 154 states have call successors, (154) [2024-11-22 13:02:30,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2992 states to 2992 states and 3504 transitions. [2024-11-22 13:02:30,563 INFO L78 Accepts]: Start accepts. Automaton has 2992 states and 3504 transitions. Word has length 164 [2024-11-22 13:02:30,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:02:30,564 INFO L471 AbstractCegarLoop]: Abstraction has 2992 states and 3504 transitions. [2024-11-22 13:02:30,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.7) internal successors, (67), 10 states have internal predecessors, (67), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:02:30,564 INFO L276 IsEmpty]: Start isEmpty. Operand 2992 states and 3504 transitions. [2024-11-22 13:02:30,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-22 13:02:30,568 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:02:30,568 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:02:30,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-22 13:02:30,568 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:02:30,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:02:30,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1290587971, now seen corresponding path program 1 times [2024-11-22 13:02:30,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:02:30,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279844969] [2024-11-22 13:02:30,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:02:30,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:02:30,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:02:30,894 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 13:02:30,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:02:30,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279844969] [2024-11-22 13:02:30,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279844969] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:02:30,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:02:30,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 13:02:30,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377008454] [2024-11-22 13:02:30,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:02:30,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 13:02:30,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:02:30,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 13:02:30,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 13:02:30,897 INFO L87 Difference]: Start difference. First operand 2992 states and 3504 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:02:31,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:02:31,125 INFO L93 Difference]: Finished difference Result 4789 states and 5595 transitions. [2024-11-22 13:02:31,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 13:02:31,126 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 164 [2024-11-22 13:02:31,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:02:31,132 INFO L225 Difference]: With dead ends: 4789 [2024-11-22 13:02:31,132 INFO L226 Difference]: Without dead ends: 2978 [2024-11-22 13:02:31,135 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 13:02:31,135 INFO L432 NwaCegarLoop]: 197 mSDtfsCounter, 78 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 664 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 13:02:31,136 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 664 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 13:02:31,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2978 states. [2024-11-22 13:02:31,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2978 to 2748. [2024-11-22 13:02:31,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2748 states, 2601 states have (on average 1.1430219146482121) internal successors, (2973), 2608 states have internal predecessors, (2973), 114 states have call successors, (114), 32 states have call predecessors, (114), 32 states have return successors, (114), 107 states have call predecessors, (114), 114 states have call successors, (114) [2024-11-22 13:02:31,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2748 states to 2748 states and 3201 transitions. [2024-11-22 13:02:31,296 INFO L78 Accepts]: Start accepts. Automaton has 2748 states and 3201 transitions. Word has length 164 [2024-11-22 13:02:31,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:02:31,297 INFO L471 AbstractCegarLoop]: Abstraction has 2748 states and 3201 transitions. [2024-11-22 13:02:31,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:02:31,297 INFO L276 IsEmpty]: Start isEmpty. Operand 2748 states and 3201 transitions. [2024-11-22 13:02:31,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-22 13:02:31,300 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:02:31,300 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:02:31,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-22 13:02:31,300 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:02:31,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:02:31,301 INFO L85 PathProgramCache]: Analyzing trace with hash 391664693, now seen corresponding path program 1 times [2024-11-22 13:02:31,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:02:31,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989299632] [2024-11-22 13:02:31,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:02:31,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:02:31,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:02:31,751 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 13:02:31,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:02:31,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989299632] [2024-11-22 13:02:31,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989299632] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:02:31,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:02:31,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 13:02:31,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502471914] [2024-11-22 13:02:31,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:02:31,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 13:02:31,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:02:31,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 13:02:31,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-22 13:02:31,754 INFO L87 Difference]: Start difference. First operand 2748 states and 3201 transitions. Second operand has 8 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-22 13:02:32,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:02:32,321 INFO L93 Difference]: Finished difference Result 6957 states and 8061 transitions. [2024-11-22 13:02:32,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 13:02:32,321 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 166 [2024-11-22 13:02:32,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:02:32,330 INFO L225 Difference]: With dead ends: 6957 [2024-11-22 13:02:32,330 INFO L226 Difference]: Without dead ends: 5222 [2024-11-22 13:02:32,334 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-11-22 13:02:32,334 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 402 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 402 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 13:02:32,335 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [402 Valid, 637 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 13:02:32,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5222 states. [2024-11-22 13:02:32,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5222 to 5216. [2024-11-22 13:02:32,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5216 states, 4997 states have (on average 1.1376826095657395) internal successors, (5685), 5012 states have internal predecessors, (5685), 170 states have call successors, (170), 48 states have call predecessors, (170), 48 states have return successors, (170), 155 states have call predecessors, (170), 170 states have call successors, (170) [2024-11-22 13:02:32,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5216 states to 5216 states and 6025 transitions. [2024-11-22 13:02:32,617 INFO L78 Accepts]: Start accepts. Automaton has 5216 states and 6025 transitions. Word has length 166 [2024-11-22 13:02:32,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:02:32,617 INFO L471 AbstractCegarLoop]: Abstraction has 5216 states and 6025 transitions. [2024-11-22 13:02:32,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-22 13:02:32,618 INFO L276 IsEmpty]: Start isEmpty. Operand 5216 states and 6025 transitions. [2024-11-22 13:02:32,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-22 13:02:32,622 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:02:32,622 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:02:32,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-22 13:02:32,622 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:02:32,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:02:32,622 INFO L85 PathProgramCache]: Analyzing trace with hash -2059616136, now seen corresponding path program 1 times [2024-11-22 13:02:32,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:02:32,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917671962] [2024-11-22 13:02:32,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:02:32,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:02:32,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:02:32,920 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 13:02:32,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:02:32,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917671962] [2024-11-22 13:02:32,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917671962] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:02:32,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:02:32,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 13:02:32,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774378992] [2024-11-22 13:02:32,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:02:32,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 13:02:32,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:02:32,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 13:02:32,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 13:02:32,922 INFO L87 Difference]: Start difference. First operand 5216 states and 6025 transitions. Second operand has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:02:33,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:02:33,285 INFO L93 Difference]: Finished difference Result 7889 states and 9110 transitions. [2024-11-22 13:02:33,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-22 13:02:33,286 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 167 [2024-11-22 13:02:33,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:02:33,301 INFO L225 Difference]: With dead ends: 7889 [2024-11-22 13:02:33,302 INFO L226 Difference]: Without dead ends: 7887 [2024-11-22 13:02:33,305 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-22 13:02:33,305 INFO L432 NwaCegarLoop]: 257 mSDtfsCounter, 101 mSDsluCounter, 1399 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 1656 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 13:02:33,306 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 1656 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 13:02:33,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7887 states. [2024-11-22 13:02:33,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7887 to 7444. [2024-11-22 13:02:33,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7444 states, 7225 states have (on average 1.1395155709342562) internal successors, (8233), 7240 states have internal predecessors, (8233), 170 states have call successors, (170), 48 states have call predecessors, (170), 48 states have return successors, (170), 155 states have call predecessors, (170), 170 states have call successors, (170) [2024-11-22 13:02:33,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7444 states to 7444 states and 8573 transitions. [2024-11-22 13:02:33,673 INFO L78 Accepts]: Start accepts. Automaton has 7444 states and 8573 transitions. Word has length 167 [2024-11-22 13:02:33,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:02:33,675 INFO L471 AbstractCegarLoop]: Abstraction has 7444 states and 8573 transitions. [2024-11-22 13:02:33,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:02:33,675 INFO L276 IsEmpty]: Start isEmpty. Operand 7444 states and 8573 transitions. [2024-11-22 13:02:33,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-22 13:02:33,681 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:02:33,681 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:02:33,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-22 13:02:33,682 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:02:33,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:02:33,682 INFO L85 PathProgramCache]: Analyzing trace with hash 1840984374, now seen corresponding path program 1 times [2024-11-22 13:02:33,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:02:33,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968164866] [2024-11-22 13:02:33,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:02:33,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:02:33,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:02:34,223 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 13:02:34,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:02:34,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968164866] [2024-11-22 13:02:34,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968164866] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:02:34,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:02:34,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 13:02:34,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819969180] [2024-11-22 13:02:34,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:02:34,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 13:02:34,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:02:34,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 13:02:34,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-22 13:02:34,224 INFO L87 Difference]: Start difference. First operand 7444 states and 8573 transitions. Second operand has 9 states, 8 states have (on average 8.75) internal successors, (70), 9 states have internal predecessors, (70), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-22 13:02:34,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:02:34,822 INFO L93 Difference]: Finished difference Result 12214 states and 14066 transitions. [2024-11-22 13:02:34,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 13:02:34,822 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.75) internal successors, (70), 9 states have internal predecessors, (70), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) Word has length 167 [2024-11-22 13:02:34,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:02:34,834 INFO L225 Difference]: With dead ends: 12214 [2024-11-22 13:02:34,834 INFO L226 Difference]: Without dead ends: 7667 [2024-11-22 13:02:34,840 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-11-22 13:02:34,841 INFO L432 NwaCegarLoop]: 244 mSDtfsCounter, 188 mSDsluCounter, 922 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 1166 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 13:02:34,841 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 1166 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 13:02:34,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7667 states. [2024-11-22 13:02:35,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7667 to 7288. [2024-11-22 13:02:35,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7288 states, 7103 states have (on average 1.1396592988877938) internal successors, (8095), 7114 states have internal predecessors, (8095), 142 states have call successors, (142), 42 states have call predecessors, (142), 42 states have return successors, (142), 131 states have call predecessors, (142), 142 states have call successors, (142) [2024-11-22 13:02:35,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7288 states to 7288 states and 8379 transitions. [2024-11-22 13:02:35,128 INFO L78 Accepts]: Start accepts. Automaton has 7288 states and 8379 transitions. Word has length 167 [2024-11-22 13:02:35,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:02:35,129 INFO L471 AbstractCegarLoop]: Abstraction has 7288 states and 8379 transitions. [2024-11-22 13:02:35,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.75) internal successors, (70), 9 states have internal predecessors, (70), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-22 13:02:35,129 INFO L276 IsEmpty]: Start isEmpty. Operand 7288 states and 8379 transitions. [2024-11-22 13:02:35,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2024-11-22 13:02:35,141 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:02:35,141 INFO L215 NwaCegarLoop]: trace histogram [40, 40, 40, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:02:35,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-22 13:02:35,142 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:02:35,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:02:35,142 INFO L85 PathProgramCache]: Analyzing trace with hash -364408270, now seen corresponding path program 1 times [2024-11-22 13:02:35,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:02:35,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608890603] [2024-11-22 13:02:35,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:02:35,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:02:35,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:02:36,909 INFO L134 CoverageAnalysis]: Checked inductivity of 3198 backedges. 3 proven. 37 refuted. 0 times theorem prover too weak. 3158 trivial. 0 not checked. [2024-11-22 13:02:36,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:02:36,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608890603] [2024-11-22 13:02:36,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608890603] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 13:02:36,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1127850042] [2024-11-22 13:02:36,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:02:36,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 13:02:36,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 13:02:36,913 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 13:02:36,915 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-22 13:02:37,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:02:37,282 INFO L255 TraceCheckSpWp]: Trace formula consists of 1058 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-22 13:02:37,294 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 13:02:38,078 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 15 treesize of output 1 [2024-11-22 13:02:38,118 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 0 case distinctions, treesize of input 72 treesize of output 59 [2024-11-22 13:02:38,122 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 16 treesize of output 15 [2024-11-22 13:02:38,133 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 18 treesize of output 17 [2024-11-22 13:02:38,353 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 65 treesize of output 53 [2024-11-22 13:02:38,394 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 59 treesize of output 39 [2024-11-22 13:02:38,414 INFO L134 CoverageAnalysis]: Checked inductivity of 3198 backedges. 3 proven. 191 refuted. 0 times theorem prover too weak. 3004 trivial. 0 not checked. [2024-11-22 13:02:38,415 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 13:02:38,637 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 37 treesize of output 33 [2024-11-22 13:02:38,647 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 13:02:38,647 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 49 [2024-11-22 13:02:38,685 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 [2024-11-22 13:02:38,803 INFO L134 CoverageAnalysis]: Checked inductivity of 3198 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 3174 trivial. 0 not checked. [2024-11-22 13:02:38,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1127850042] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-22 13:02:38,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-22 13:02:38,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [12, 9] total 16 [2024-11-22 13:02:38,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997349315] [2024-11-22 13:02:38,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:02:38,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 13:02:38,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:02:38,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 13:02:38,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2024-11-22 13:02:38,805 INFO L87 Difference]: Start difference. First operand 7288 states and 8379 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:02:39,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:02:39,364 INFO L93 Difference]: Finished difference Result 12066 states and 13876 transitions. [2024-11-22 13:02:39,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 13:02:39,365 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 323 [2024-11-22 13:02:39,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:02:39,367 INFO L225 Difference]: With dead ends: 12066 [2024-11-22 13:02:39,367 INFO L226 Difference]: Without dead ends: 0 [2024-11-22 13:02:39,377 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 660 GetRequests, 642 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380 [2024-11-22 13:02:39,377 INFO L432 NwaCegarLoop]: 248 mSDtfsCounter, 95 mSDsluCounter, 1241 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 1489 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 13:02:39,378 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 1489 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 13:02:39,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-22 13:02:39,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-22 13:02:39,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 13:02:39,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-22 13:02:39,380 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 323 [2024-11-22 13:02:39,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:02:39,380 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-22 13:02:39,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 13:02:39,380 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-22 13:02:39,380 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-22 13:02:39,383 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-22 13:02:39,395 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-22 13:02:39,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 13:02:39,587 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:02:39,589 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.