./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test10-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test10-3.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 fa6de94809ad211882523114a33a27b3a82ed66d6bff27089fdf2c6fcaa93aae --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 12:03:16,268 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 12:03:16,344 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-12 12:03:16,350 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 12:03:16,350 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 12:03:16,372 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 12:03:16,374 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 12:03:16,374 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 12:03:16,375 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 12:03:16,376 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 12:03:16,377 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 12:03:16,377 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 12:03:16,377 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 12:03:16,379 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 12:03:16,379 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 12:03:16,379 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 12:03:16,379 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 12:03:16,380 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 12:03:16,380 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 12:03:16,380 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 12:03:16,380 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 12:03:16,383 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 12:03:16,383 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 12:03:16,383 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 12:03:16,383 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 12:03:16,383 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 12:03:16,384 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 12:03:16,384 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 12:03:16,384 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 12:03:16,384 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 12:03:16,384 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 12:03:16,385 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 12:03:16,385 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 12:03:16,385 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 12:03:16,385 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 12:03:16,385 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 12:03:16,385 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 12:03:16,385 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 12:03:16,386 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 12:03:16,386 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 12:03:16,386 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 12:03:16,386 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 12:03:16,387 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa6de94809ad211882523114a33a27b3a82ed66d6bff27089fdf2c6fcaa93aae [2024-11-12 12:03:16,581 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 12:03:16,601 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 12:03:16,604 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 12:03:16,605 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 12:03:16,605 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 12:03:16,606 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test10-3.i [2024-11-12 12:03:17,933 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 12:03:18,235 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 12:03:18,235 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test10-3.i [2024-11-12 12:03:18,261 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d923c5759/e450d65f2a47456091a5e80f1aaf7b58/FLAG2706d2b1b [2024-11-12 12:03:18,276 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d923c5759/e450d65f2a47456091a5e80f1aaf7b58 [2024-11-12 12:03:18,279 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 12:03:18,281 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 12:03:18,283 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 12:03:18,284 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 12:03:18,289 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 12:03:18,290 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:03:18" (1/1) ... [2024-11-12 12:03:18,291 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f91d710 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:03:18, skipping insertion in model container [2024-11-12 12:03:18,291 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:03:18" (1/1) ... [2024-11-12 12:03:18,354 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 12:03:18,747 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/uthash-2.0.2/uthash_SFH_test10-3.i[33022,33035] [2024-11-12 12:03:18,943 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 12:03:18,951 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 12:03:18,984 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/uthash-2.0.2/uthash_SFH_test10-3.i[33022,33035] [2024-11-12 12:03:19,084 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 12:03:19,114 INFO L204 MainTranslator]: Completed translation [2024-11-12 12:03:19,114 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:03:19 WrapperNode [2024-11-12 12:03:19,114 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 12:03:19,115 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 12:03:19,116 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 12:03:19,116 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 12:03:19,121 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:03:19" (1/1) ... [2024-11-12 12:03:19,152 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:03:19" (1/1) ... [2024-11-12 12:03:19,236 INFO L138 Inliner]: procedures = 177, calls = 605, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 3725 [2024-11-12 12:03:19,237 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 12:03:19,238 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 12:03:19,238 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 12:03:19,238 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 12:03:19,247 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:03:19" (1/1) ... [2024-11-12 12:03:19,247 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:03:19" (1/1) ... [2024-11-12 12:03:19,258 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:03:19" (1/1) ... [2024-11-12 12:03:19,492 INFO L175 MemorySlicer]: Split 574 memory accesses to 3 slices as follows [2, 466, 106]. 81 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 102 writes are split as follows [0, 98, 4]. [2024-11-12 12:03:19,498 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:03:19" (1/1) ... [2024-11-12 12:03:19,498 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:03:19" (1/1) ... [2024-11-12 12:03:19,613 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:03:19" (1/1) ... [2024-11-12 12:03:19,646 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:03:19" (1/1) ... [2024-11-12 12:03:19,652 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:03:19" (1/1) ... [2024-11-12 12:03:19,659 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:03:19" (1/1) ... [2024-11-12 12:03:19,670 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 12:03:19,671 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 12:03:19,671 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 12:03:19,672 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 12:03:19,672 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:03:19" (1/1) ... [2024-11-12 12:03:19,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 12:03:19,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 12:03:19,701 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) [2024-11-12 12:03:19,709 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 [2024-11-12 12:03:19,742 INFO L130 BoogieDeclarations]: Found specification of procedure test_int_int [2024-11-12 12:03:19,743 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int_int [2024-11-12 12:03:19,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-12 12:03:19,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-12 12:03:19,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-12 12:03:19,744 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-12 12:03:19,744 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-12 12:03:19,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-12 12:03:19,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-12 12:03:19,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-12 12:03:19,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-12 12:03:19,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-12 12:03:19,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-12 12:03:19,746 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-12 12:03:19,746 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-12 12:03:19,746 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-12 12:03:19,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-12 12:03:19,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 12:03:19,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-12 12:03:19,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-12 12:03:19,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-12 12:03:19,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-12 12:03:19,747 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-12 12:03:19,747 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-12 12:03:19,747 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-12 12:03:19,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-12 12:03:19,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 12:03:19,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-12 12:03:19,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-12 12:03:19,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 12:03:19,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 12:03:20,018 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 12:03:20,021 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 12:03:22,158 INFO L? ?]: Removed 823 outVars from TransFormulas that were not future-live. [2024-11-12 12:03:22,159 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 12:03:22,182 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 12:03:22,183 INFO L316 CfgBuilder]: Removed 168 assume(true) statements. [2024-11-12 12:03:22,183 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:03:22 BoogieIcfgContainer [2024-11-12 12:03:22,183 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 12:03:22,185 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 12:03:22,185 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 12:03:22,188 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 12:03:22,188 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:03:18" (1/3) ... [2024-11-12 12:03:22,189 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@aa7f2be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:03:22, skipping insertion in model container [2024-11-12 12:03:22,189 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:03:19" (2/3) ... [2024-11-12 12:03:22,189 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@aa7f2be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:03:22, skipping insertion in model container [2024-11-12 12:03:22,189 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:03:22" (3/3) ... [2024-11-12 12:03:22,194 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test10-3.i [2024-11-12 12:03:22,208 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 12:03:22,208 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-12 12:03:22,291 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 12:03:22,297 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;@6c90e16e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 12:03:22,297 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-12 12:03:22,303 INFO L276 IsEmpty]: Start isEmpty. Operand has 1092 states, 1073 states have (on average 1.6290773532152842) internal successors, (1748), 1078 states have internal predecessors, (1748), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-12 12:03:22,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-12 12:03:22,308 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 12:03:22,309 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:03:22,309 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 12:03:22,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:03:22,313 INFO L85 PathProgramCache]: Analyzing trace with hash 2411661, now seen corresponding path program 1 times [2024-11-12 12:03:22,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:03:22,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021045994] [2024-11-12 12:03:22,352 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:03:22,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:03:22,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:03:22,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:03:22,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:03:22,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021045994] [2024-11-12 12:03:22,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021045994] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:03:22,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:03:22,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:03:22,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037646227] [2024-11-12 12:03:22,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:03:22,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-12 12:03:22,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:03:22,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-12 12:03:22,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-12 12:03:22,536 INFO L87 Difference]: Start difference. First operand has 1092 states, 1073 states have (on average 1.6290773532152842) internal successors, (1748), 1078 states have internal predecessors, (1748), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:03:22,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 12:03:22,628 INFO L93 Difference]: Finished difference Result 2182 states and 3558 transitions. [2024-11-12 12:03:22,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-12 12:03:22,631 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-12 12:03:22,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 12:03:22,651 INFO L225 Difference]: With dead ends: 2182 [2024-11-12 12:03:22,651 INFO L226 Difference]: Without dead ends: 1026 [2024-11-12 12:03:22,659 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-12 12:03:22,663 INFO L435 NwaCegarLoop]: 1600 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, 1600 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 [2024-11-12 12:03:22,664 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1600 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 12:03:22,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1026 states. [2024-11-12 12:03:22,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1026 to 1026. [2024-11-12 12:03:22,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1026 states, 1008 states have (on average 1.4722222222222223) internal successors, (1484), 1013 states have internal predecessors, (1484), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-12 12:03:22,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1026 states to 1026 states and 1511 transitions. [2024-11-12 12:03:22,755 INFO L78 Accepts]: Start accepts. Automaton has 1026 states and 1511 transitions. Word has length 13 [2024-11-12 12:03:22,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 12:03:22,755 INFO L471 AbstractCegarLoop]: Abstraction has 1026 states and 1511 transitions. [2024-11-12 12:03:22,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:03:22,756 INFO L276 IsEmpty]: Start isEmpty. Operand 1026 states and 1511 transitions. [2024-11-12 12:03:22,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-12 12:03:22,759 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 12:03:22,759 INFO L218 NwaCegarLoop]: trace 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:03:22,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 12:03:22,760 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 12:03:22,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:03:22,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1315650717, now seen corresponding path program 1 times [2024-11-12 12:03:22,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:03:22,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980377230] [2024-11-12 12:03:22,761 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:03:22,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:03:22,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:03:23,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:03:23,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:03:23,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980377230] [2024-11-12 12:03:23,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980377230] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:03:23,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:03:23,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 12:03:23,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820996866] [2024-11-12 12:03:23,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:03:23,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 12:03:23,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:03:23,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 12:03:23,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 12:03:23,118 INFO L87 Difference]: Start difference. First operand 1026 states and 1511 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:03:23,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 12:03:23,266 INFO L93 Difference]: Finished difference Result 2046 states and 3016 transitions. [2024-11-12 12:03:23,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 12:03:23,267 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-12 12:03:23,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 12:03:23,272 INFO L225 Difference]: With dead ends: 2046 [2024-11-12 12:03:23,274 INFO L226 Difference]: Without dead ends: 1412 [2024-11-12 12:03:23,275 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-12 12:03:23,276 INFO L435 NwaCegarLoop]: 1550 mSDtfsCounter, 548 mSDsluCounter, 2991 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 554 SdHoareTripleChecker+Valid, 4541 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 12:03:23,277 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [554 Valid, 4541 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 12:03:23,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1412 states. [2024-11-12 12:03:23,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1412 to 1028. [2024-11-12 12:03:23,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1028 states, 1010 states have (on average 1.4712871287128713) internal successors, (1486), 1015 states have internal predecessors, (1486), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-12 12:03:23,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1028 states to 1028 states and 1513 transitions. [2024-11-12 12:03:23,299 INFO L78 Accepts]: Start accepts. Automaton has 1028 states and 1513 transitions. Word has length 68 [2024-11-12 12:03:23,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 12:03:23,299 INFO L471 AbstractCegarLoop]: Abstraction has 1028 states and 1513 transitions. [2024-11-12 12:03:23,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:03:23,299 INFO L276 IsEmpty]: Start isEmpty. Operand 1028 states and 1513 transitions. [2024-11-12 12:03:23,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-12 12:03:23,303 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 12:03:23,303 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:03:23,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 12:03:23,304 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 12:03:23,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:03:23,304 INFO L85 PathProgramCache]: Analyzing trace with hash 460598544, now seen corresponding path program 1 times [2024-11-12 12:03:23,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:03:23,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592249442] [2024-11-12 12:03:23,305 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:03:23,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:03:23,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:03:23,763 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:03:23,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:03:23,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592249442] [2024-11-12 12:03:23,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592249442] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:03:23,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:03:23,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-12 12:03:23,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162173677] [2024-11-12 12:03:23,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:03:23,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 12:03:23,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:03:23,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 12:03:23,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-12 12:03:23,765 INFO L87 Difference]: Start difference. First operand 1028 states and 1513 transitions. Second operand has 6 states, 6 states have (on average 23.833333333333332) internal successors, (143), 6 states have internal predecessors, (143), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:03:23,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 12:03:23,983 INFO L93 Difference]: Finished difference Result 2436 states and 3581 transitions. [2024-11-12 12:03:23,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 12:03:23,983 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.833333333333332) internal successors, (143), 6 states have internal predecessors, (143), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 145 [2024-11-12 12:03:23,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 12:03:23,989 INFO L225 Difference]: With dead ends: 2436 [2024-11-12 12:03:23,989 INFO L226 Difference]: Without dead ends: 1412 [2024-11-12 12:03:23,991 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-12 12:03:23,993 INFO L435 NwaCegarLoop]: 1506 mSDtfsCounter, 546 mSDsluCounter, 4933 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 552 SdHoareTripleChecker+Valid, 6439 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 12:03:23,993 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [552 Valid, 6439 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 12:03:23,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1412 states. [2024-11-12 12:03:24,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1412 to 1031. [2024-11-12 12:03:24,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1031 states, 1013 states have (on average 1.4698914116485686) internal successors, (1489), 1018 states have internal predecessors, (1489), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-12 12:03:24,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1031 states to 1031 states and 1516 transitions. [2024-11-12 12:03:24,012 INFO L78 Accepts]: Start accepts. Automaton has 1031 states and 1516 transitions. Word has length 145 [2024-11-12 12:03:24,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 12:03:24,013 INFO L471 AbstractCegarLoop]: Abstraction has 1031 states and 1516 transitions. [2024-11-12 12:03:24,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.833333333333332) internal successors, (143), 6 states have internal predecessors, (143), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:03:24,013 INFO L276 IsEmpty]: Start isEmpty. Operand 1031 states and 1516 transitions. [2024-11-12 12:03:24,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-11-12 12:03:24,016 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 12:03:24,016 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:03:24,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-12 12:03:24,017 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 12:03:24,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:03:24,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1746921408, now seen corresponding path program 1 times [2024-11-12 12:03:24,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:03:24,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163374165] [2024-11-12 12:03:24,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:03:24,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:03:24,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:03:24,331 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:03:24,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:03:24,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163374165] [2024-11-12 12:03:24,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163374165] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:03:24,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:03:24,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 12:03:24,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87037031] [2024-11-12 12:03:24,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:03:24,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 12:03:24,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:03:24,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 12:03:24,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 12:03:24,334 INFO L87 Difference]: Start difference. First operand 1031 states and 1516 transitions. Second operand has 4 states, 4 states have (on average 53.5) internal successors, (214), 4 states have internal predecessors, (214), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:03:24,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 12:03:24,436 INFO L93 Difference]: Finished difference Result 2013 states and 2959 transitions. [2024-11-12 12:03:24,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 12:03:24,437 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.5) internal successors, (214), 4 states have internal predecessors, (214), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 216 [2024-11-12 12:03:24,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 12:03:24,440 INFO L225 Difference]: With dead ends: 2013 [2024-11-12 12:03:24,440 INFO L226 Difference]: Without dead ends: 989 [2024-11-12 12:03:24,443 INFO L434 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 [2024-11-12 12:03:24,444 INFO L435 NwaCegarLoop]: 1409 mSDtfsCounter, 30 mSDsluCounter, 2799 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 4208 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 12:03:24,444 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 4208 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 12:03:24,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 989 states. [2024-11-12 12:03:24,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 989 to 989. [2024-11-12 12:03:24,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 989 states, 971 states have (on average 1.454170957775489) internal successors, (1412), 976 states have internal predecessors, (1412), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-12 12:03:24,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 1439 transitions. [2024-11-12 12:03:24,457 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 1439 transitions. Word has length 216 [2024-11-12 12:03:24,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 12:03:24,458 INFO L471 AbstractCegarLoop]: Abstraction has 989 states and 1439 transitions. [2024-11-12 12:03:24,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.5) internal successors, (214), 4 states have internal predecessors, (214), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:03:24,458 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 1439 transitions. [2024-11-12 12:03:24,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-11-12 12:03:24,460 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 12:03:24,460 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:03:24,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-12 12:03:24,460 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 12:03:24,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:03:24,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1296812108, now seen corresponding path program 1 times [2024-11-12 12:03:24,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:03:24,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428004056] [2024-11-12 12:03:24,461 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:03:24,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:03:24,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:03:24,620 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:03:24,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:03:24,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428004056] [2024-11-12 12:03:24,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428004056] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:03:24,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:03:24,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 12:03:24,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559708963] [2024-11-12 12:03:24,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:03:24,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:03:24,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:03:24,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:03:24,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:03:24,622 INFO L87 Difference]: Start difference. First operand 989 states and 1439 transitions. Second operand has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:03:24,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 12:03:24,679 INFO L93 Difference]: Finished difference Result 2502 states and 3654 transitions. [2024-11-12 12:03:24,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:03:24,680 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 216 [2024-11-12 12:03:24,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 12:03:24,684 INFO L225 Difference]: With dead ends: 2502 [2024-11-12 12:03:24,685 INFO L226 Difference]: Without dead ends: 1520 [2024-11-12 12:03:24,686 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:03:24,690 INFO L435 NwaCegarLoop]: 1426 mSDtfsCounter, 716 mSDsluCounter, 1408 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 719 SdHoareTripleChecker+Valid, 2834 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 12:03:24,691 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [719 Valid, 2834 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 12:03:24,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1520 states. [2024-11-12 12:03:24,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1520 to 1361. [2024-11-12 12:03:24,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1361 states, 1341 states have (on average 1.4571215510812827) internal successors, (1954), 1346 states have internal predecessors, (1954), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (15), 12 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-12 12:03:24,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1361 states to 1361 states and 1985 transitions. [2024-11-12 12:03:24,712 INFO L78 Accepts]: Start accepts. Automaton has 1361 states and 1985 transitions. Word has length 216 [2024-11-12 12:03:24,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 12:03:24,712 INFO L471 AbstractCegarLoop]: Abstraction has 1361 states and 1985 transitions. [2024-11-12 12:03:24,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:03:24,713 INFO L276 IsEmpty]: Start isEmpty. Operand 1361 states and 1985 transitions. [2024-11-12 12:03:24,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2024-11-12 12:03:24,715 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 12:03:24,715 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:03:24,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-12 12:03:24,716 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 12:03:24,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:03:24,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1169930585, now seen corresponding path program 1 times [2024-11-12 12:03:24,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:03:24,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666260200] [2024-11-12 12:03:24,717 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:03:24,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:03:24,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:03:25,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-12 12:03:25,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:03:25,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-12 12:03:25,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:03:25,032 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-12 12:03:25,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:03:25,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666260200] [2024-11-12 12:03:25,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666260200] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:03:25,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:03:25,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:03:25,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813757450] [2024-11-12 12:03:25,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:03:25,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 12:03:25,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:03:25,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 12:03:25,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 12:03:25,036 INFO L87 Difference]: Start difference. First operand 1361 states and 1985 transitions. Second operand has 5 states, 5 states have (on average 44.4) internal successors, (222), 4 states have internal predecessors, (222), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-12 12:03:26,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 12:03:26,144 INFO L93 Difference]: Finished difference Result 2591 states and 3790 transitions. [2024-11-12 12:03:26,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:03:26,148 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 44.4) internal successors, (222), 4 states have internal predecessors, (222), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 231 [2024-11-12 12:03:26,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 12:03:26,154 INFO L225 Difference]: With dead ends: 2591 [2024-11-12 12:03:26,154 INFO L226 Difference]: Without dead ends: 1322 [2024-11-12 12:03:26,157 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-12 12:03:26,158 INFO L435 NwaCegarLoop]: 1301 mSDtfsCounter, 53 mSDsluCounter, 3751 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 5052 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-12 12:03:26,160 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 5052 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-12 12:03:26,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1322 states. [2024-11-12 12:03:26,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1322 to 1319. [2024-11-12 12:03:26,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1319 states, 1299 states have (on average 1.4449576597382603) internal successors, (1877), 1304 states have internal predecessors, (1877), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (15), 12 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-12 12:03:26,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1319 states to 1319 states and 1908 transitions. [2024-11-12 12:03:26,185 INFO L78 Accepts]: Start accepts. Automaton has 1319 states and 1908 transitions. Word has length 231 [2024-11-12 12:03:26,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 12:03:26,185 INFO L471 AbstractCegarLoop]: Abstraction has 1319 states and 1908 transitions. [2024-11-12 12:03:26,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 44.4) internal successors, (222), 4 states have internal predecessors, (222), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-12 12:03:26,186 INFO L276 IsEmpty]: Start isEmpty. Operand 1319 states and 1908 transitions. [2024-11-12 12:03:26,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2024-11-12 12:03:26,188 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 12:03:26,188 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:03:26,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-12 12:03:26,188 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 12:03:26,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:03:26,189 INFO L85 PathProgramCache]: Analyzing trace with hash -1545737549, now seen corresponding path program 1 times [2024-11-12 12:03:26,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:03:26,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574793631] [2024-11-12 12:03:26,189 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:03:26,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:03:26,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:03:26,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-12 12:03:26,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:03:26,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-12 12:03:26,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:03:26,466 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-12 12:03:26,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:03:26,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574793631] [2024-11-12 12:03:26,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574793631] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:03:26,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:03:26,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 12:03:26,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494627172] [2024-11-12 12:03:26,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:03:26,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 12:03:26,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:03:26,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 12:03:26,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 12:03:26,468 INFO L87 Difference]: Start difference. First operand 1319 states and 1908 transitions. Second operand has 4 states, 4 states have (on average 55.5) internal successors, (222), 3 states have internal predecessors, (222), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-12 12:03:26,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 12:03:26,800 INFO L93 Difference]: Finished difference Result 2549 states and 3702 transitions. [2024-11-12 12:03:26,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 12:03:26,800 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 55.5) internal successors, (222), 3 states have internal predecessors, (222), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 231 [2024-11-12 12:03:26,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 12:03:26,805 INFO L225 Difference]: With dead ends: 2549 [2024-11-12 12:03:26,805 INFO L226 Difference]: Without dead ends: 1322 [2024-11-12 12:03:26,807 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 12:03:26,807 INFO L435 NwaCegarLoop]: 1314 mSDtfsCounter, 24 mSDsluCounter, 2479 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 3793 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-12 12:03:26,808 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 3793 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-12 12:03:26,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1322 states. [2024-11-12 12:03:26,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1322 to 1319. [2024-11-12 12:03:26,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1319 states, 1299 states have (on average 1.4426481909160893) internal successors, (1874), 1304 states have internal predecessors, (1874), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (15), 12 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-12 12:03:26,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1319 states to 1319 states and 1905 transitions. [2024-11-12 12:03:26,828 INFO L78 Accepts]: Start accepts. Automaton has 1319 states and 1905 transitions. Word has length 231 [2024-11-12 12:03:26,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 12:03:26,829 INFO L471 AbstractCegarLoop]: Abstraction has 1319 states and 1905 transitions. [2024-11-12 12:03:26,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.5) internal successors, (222), 3 states have internal predecessors, (222), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-12 12:03:26,829 INFO L276 IsEmpty]: Start isEmpty. Operand 1319 states and 1905 transitions. [2024-11-12 12:03:26,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2024-11-12 12:03:26,831 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 12:03:26,831 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:03:26,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-12 12:03:26,832 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 12:03:26,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:03:26,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1022084785, now seen corresponding path program 1 times [2024-11-12 12:03:26,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:03:26,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940259475] [2024-11-12 12:03:26,832 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:03:26,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:03:26,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:03:27,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-12 12:03:27,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:03:27,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-12 12:03:27,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:03:27,130 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-12 12:03:27,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:03:27,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940259475] [2024-11-12 12:03:27,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940259475] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:03:27,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:03:27,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 12:03:27,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25133291] [2024-11-12 12:03:27,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:03:27,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 12:03:27,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:03:27,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 12:03:27,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 12:03:27,133 INFO L87 Difference]: Start difference. First operand 1319 states and 1905 transitions. Second operand has 4 states, 4 states have (on average 55.5) internal successors, (222), 3 states have internal predecessors, (222), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-12 12:03:27,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 12:03:27,508 INFO L93 Difference]: Finished difference Result 3120 states and 4530 transitions. [2024-11-12 12:03:27,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 12:03:27,508 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 55.5) internal successors, (222), 3 states have internal predecessors, (222), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 231 [2024-11-12 12:03:27,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 12:03:27,515 INFO L225 Difference]: With dead ends: 3120 [2024-11-12 12:03:27,516 INFO L226 Difference]: Without dead ends: 1893 [2024-11-12 12:03:27,518 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 12:03:27,518 INFO L435 NwaCegarLoop]: 1543 mSDtfsCounter, 619 mSDsluCounter, 2705 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 627 SdHoareTripleChecker+Valid, 4248 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-12 12:03:27,519 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [627 Valid, 4248 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-12 12:03:27,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1893 states. [2024-11-12 12:03:27,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1893 to 1885. [2024-11-12 12:03:27,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1885 states, 1859 states have (on average 1.444862829478214) internal successors, (2686), 1864 states have internal predecessors, (2686), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (21), 18 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-12 12:03:27,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1885 states to 1885 states and 2729 transitions. [2024-11-12 12:03:27,564 INFO L78 Accepts]: Start accepts. Automaton has 1885 states and 2729 transitions. Word has length 231 [2024-11-12 12:03:27,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 12:03:27,565 INFO L471 AbstractCegarLoop]: Abstraction has 1885 states and 2729 transitions. [2024-11-12 12:03:27,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.5) internal successors, (222), 3 states have internal predecessors, (222), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-12 12:03:27,565 INFO L276 IsEmpty]: Start isEmpty. Operand 1885 states and 2729 transitions. [2024-11-12 12:03:27,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2024-11-12 12:03:27,568 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 12:03:27,568 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:03:27,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-12 12:03:27,568 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 12:03:27,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:03:27,569 INFO L85 PathProgramCache]: Analyzing trace with hash 931884891, now seen corresponding path program 1 times [2024-11-12 12:03:27,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:03:27,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109463631] [2024-11-12 12:03:27,569 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:03:27,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:03:27,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:03:27,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-12 12:03:27,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:03:27,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-12 12:03:27,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:03:27,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-12 12:03:27,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:03:27,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-12 12:03:27,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:03:27,945 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-12 12:03:27,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:03:27,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109463631] [2024-11-12 12:03:27,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109463631] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:03:27,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:03:27,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-12 12:03:27,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645155869] [2024-11-12 12:03:27,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:03:27,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 12:03:27,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:03:27,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 12:03:27,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-12 12:03:27,947 INFO L87 Difference]: Start difference. First operand 1885 states and 2729 transitions. Second operand has 6 states, 6 states have (on average 37.833333333333336) internal successors, (227), 5 states have internal predecessors, (227), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-12 12:03:28,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 12:03:28,670 INFO L93 Difference]: Finished difference Result 4073 states and 5947 transitions. [2024-11-12 12:03:28,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:03:28,671 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 37.833333333333336) internal successors, (227), 5 states have internal predecessors, (227), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 246 [2024-11-12 12:03:28,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 12:03:28,678 INFO L225 Difference]: With dead ends: 4073 [2024-11-12 12:03:28,678 INFO L226 Difference]: Without dead ends: 2426 [2024-11-12 12:03:28,680 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-12 12:03:28,681 INFO L435 NwaCegarLoop]: 1358 mSDtfsCounter, 4642 mSDsluCounter, 2764 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4653 SdHoareTripleChecker+Valid, 4122 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-12 12:03:28,681 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4653 Valid, 4122 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-12 12:03:28,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2426 states. [2024-11-12 12:03:28,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2426 to 1456. [2024-11-12 12:03:28,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1456 states, 1435 states have (on average 1.4292682926829268) internal successors, (2051), 1440 states have internal predecessors, (2051), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-12 12:03:28,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1456 states to 1456 states and 2084 transitions. [2024-11-12 12:03:28,768 INFO L78 Accepts]: Start accepts. Automaton has 1456 states and 2084 transitions. Word has length 246 [2024-11-12 12:03:28,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 12:03:28,769 INFO L471 AbstractCegarLoop]: Abstraction has 1456 states and 2084 transitions. [2024-11-12 12:03:28,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 37.833333333333336) internal successors, (227), 5 states have internal predecessors, (227), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-12 12:03:28,769 INFO L276 IsEmpty]: Start isEmpty. Operand 1456 states and 2084 transitions. [2024-11-12 12:03:28,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2024-11-12 12:03:28,771 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 12:03:28,771 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:03:28,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-12 12:03:28,771 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 12:03:28,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:03:28,772 INFO L85 PathProgramCache]: Analyzing trace with hash 1103108783, now seen corresponding path program 1 times [2024-11-12 12:03:28,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:03:28,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231682396] [2024-11-12 12:03:28,772 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:03:28,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:03:28,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:03:29,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-12 12:03:29,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:03:29,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-12 12:03:29,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:03:29,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-12 12:03:29,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:03:29,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-12 12:03:29,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:03:29,097 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-12 12:03:29,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:03:29,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231682396] [2024-11-12 12:03:29,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231682396] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:03:29,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:03:29,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:03:29,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959767112] [2024-11-12 12:03:29,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:03:29,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 12:03:29,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:03:29,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 12:03:29,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 12:03:29,100 INFO L87 Difference]: Start difference. First operand 1456 states and 2084 transitions. Second operand has 5 states, 5 states have (on average 47.2) internal successors, (236), 4 states have internal predecessors, (236), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-12 12:03:29,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 12:03:29,476 INFO L93 Difference]: Finished difference Result 2334 states and 3394 transitions. [2024-11-12 12:03:29,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:03:29,477 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 47.2) internal successors, (236), 4 states have internal predecessors, (236), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 256 [2024-11-12 12:03:29,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 12:03:29,481 INFO L225 Difference]: With dead ends: 2334 [2024-11-12 12:03:29,482 INFO L226 Difference]: Without dead ends: 1417 [2024-11-12 12:03:29,483 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-12 12:03:29,483 INFO L435 NwaCegarLoop]: 1215 mSDtfsCounter, 53 mSDsluCounter, 3494 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 4709 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-12 12:03:29,484 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 4709 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-12 12:03:29,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1417 states. [2024-11-12 12:03:29,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1417 to 1414. [2024-11-12 12:03:29,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1414 states, 1393 states have (on average 1.4170854271356783) internal successors, (1974), 1398 states have internal predecessors, (1974), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-12 12:03:29,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1414 states to 1414 states and 2007 transitions. [2024-11-12 12:03:29,512 INFO L78 Accepts]: Start accepts. Automaton has 1414 states and 2007 transitions. Word has length 256 [2024-11-12 12:03:29,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 12:03:29,512 INFO L471 AbstractCegarLoop]: Abstraction has 1414 states and 2007 transitions. [2024-11-12 12:03:29,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 47.2) internal successors, (236), 4 states have internal predecessors, (236), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-12 12:03:29,512 INFO L276 IsEmpty]: Start isEmpty. Operand 1414 states and 2007 transitions. [2024-11-12 12:03:29,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2024-11-12 12:03:29,514 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 12:03:29,515 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:03:29,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-12 12:03:29,515 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 12:03:29,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:03:29,515 INFO L85 PathProgramCache]: Analyzing trace with hash 324776289, now seen corresponding path program 1 times [2024-11-12 12:03:29,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:03:29,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307103069] [2024-11-12 12:03:29,516 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:03:29,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:03:29,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:03:29,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-12 12:03:29,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:03:29,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-12 12:03:29,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:03:29,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-12 12:03:29,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:03:29,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-12 12:03:29,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:03:29,750 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-12 12:03:29,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:03:29,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307103069] [2024-11-12 12:03:29,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307103069] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:03:29,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:03:29,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 12:03:29,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367165362] [2024-11-12 12:03:29,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:03:29,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 12:03:29,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:03:29,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 12:03:29,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 12:03:29,752 INFO L87 Difference]: Start difference. First operand 1414 states and 2007 transitions. Second operand has 4 states, 4 states have (on average 59.0) internal successors, (236), 3 states have internal predecessors, (236), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-12 12:03:30,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 12:03:30,110 INFO L93 Difference]: Finished difference Result 2267 states and 3277 transitions. [2024-11-12 12:03:30,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 12:03:30,111 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 59.0) internal successors, (236), 3 states have internal predecessors, (236), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 256 [2024-11-12 12:03:30,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 12:03:30,115 INFO L225 Difference]: With dead ends: 2267 [2024-11-12 12:03:30,115 INFO L226 Difference]: Without dead ends: 1417 [2024-11-12 12:03:30,116 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 12:03:30,116 INFO L435 NwaCegarLoop]: 1229 mSDtfsCounter, 24 mSDsluCounter, 2306 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 3535 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-12 12:03:30,117 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 3535 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-12 12:03:30,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1417 states. [2024-11-12 12:03:30,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1417 to 1414. [2024-11-12 12:03:30,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1414 states, 1393 states have (on average 1.4149318018664752) internal successors, (1971), 1398 states have internal predecessors, (1971), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-12 12:03:30,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1414 states to 1414 states and 2004 transitions. [2024-11-12 12:03:30,144 INFO L78 Accepts]: Start accepts. Automaton has 1414 states and 2004 transitions. Word has length 256 [2024-11-12 12:03:30,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 12:03:30,144 INFO L471 AbstractCegarLoop]: Abstraction has 1414 states and 2004 transitions. [2024-11-12 12:03:30,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.0) internal successors, (236), 3 states have internal predecessors, (236), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-12 12:03:30,145 INFO L276 IsEmpty]: Start isEmpty. Operand 1414 states and 2004 transitions. [2024-11-12 12:03:30,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2024-11-12 12:03:30,147 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 12:03:30,147 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:03:30,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-12 12:03:30,147 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 12:03:30,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:03:30,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1133305499, now seen corresponding path program 1 times [2024-11-12 12:03:30,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:03:30,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740978257] [2024-11-12 12:03:30,148 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:03:30,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:03:30,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:03:30,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-12 12:03:30,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:03:30,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-12 12:03:30,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:03:30,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-12 12:03:30,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:03:30,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-12 12:03:30,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:03:30,920 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-12 12:03:30,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:03:30,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740978257] [2024-11-12 12:03:30,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740978257] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 12:03:30,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [349810571] [2024-11-12 12:03:30,920 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:03:30,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 12:03:30,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 12:03:30,923 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) [2024-11-12 12:03:30,924 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-12 12:03:31,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:03:31,416 INFO L256 TraceCheckSpWp]: Trace formula consists of 1263 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-12 12:03:31,427 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 12:03:31,450 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 11 treesize of output 7 [2024-11-12 12:03:31,791 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 19 treesize of output 11 [2024-11-12 12:03:31,806 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-12 12:03:31,806 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 12:03:32,050 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-12 12:03:32,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [349810571] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 12:03:32,051 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 12:03:32,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 5] total 13 [2024-11-12 12:03:32,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019515139] [2024-11-12 12:03:32,051 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 12:03:32,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-12 12:03:32,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:03:32,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-12 12:03:32,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2024-11-12 12:03:32,053 INFO L87 Difference]: Start difference. First operand 1414 states and 2004 transitions. Second operand has 13 states, 13 states have (on average 43.15384615384615) internal successors, (561), 12 states have internal predecessors, (561), 4 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-12 12:03:32,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 12:03:32,956 INFO L93 Difference]: Finished difference Result 3244 states and 4587 transitions. [2024-11-12 12:03:32,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-12 12:03:32,956 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 43.15384615384615) internal successors, (561), 12 states have internal predecessors, (561), 4 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 256 [2024-11-12 12:03:32,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 12:03:32,964 INFO L225 Difference]: With dead ends: 3244 [2024-11-12 12:03:32,965 INFO L226 Difference]: Without dead ends: 2365 [2024-11-12 12:03:32,966 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 530 GetRequests, 508 SyntacticMatches, 7 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-12 12:03:32,967 INFO L435 NwaCegarLoop]: 1548 mSDtfsCounter, 3073 mSDsluCounter, 7585 mSDsCounter, 0 mSdLazyCounter, 742 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3104 SdHoareTripleChecker+Valid, 9133 SdHoareTripleChecker+Invalid, 786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-12 12:03:32,967 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3104 Valid, 9133 Invalid, 786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 742 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-12 12:03:32,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2365 states. [2024-11-12 12:03:33,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2365 to 2068. [2024-11-12 12:03:33,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2068 states, 2035 states have (on average 1.3862407862407862) internal successors, (2821), 2040 states have internal predecessors, (2821), 28 states have call successors, (28), 4 states have call predecessors, (28), 4 states have return successors, (27), 24 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-12 12:03:33,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2068 states to 2068 states and 2876 transitions. [2024-11-12 12:03:33,012 INFO L78 Accepts]: Start accepts. Automaton has 2068 states and 2876 transitions. Word has length 256 [2024-11-12 12:03:33,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 12:03:33,013 INFO L471 AbstractCegarLoop]: Abstraction has 2068 states and 2876 transitions. [2024-11-12 12:03:33,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 43.15384615384615) internal successors, (561), 12 states have internal predecessors, (561), 4 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-12 12:03:33,013 INFO L276 IsEmpty]: Start isEmpty. Operand 2068 states and 2876 transitions. [2024-11-12 12:03:33,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 488 [2024-11-12 12:03:33,018 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 12:03:33,019 INFO L218 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:03:33,039 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-12 12:03:33,219 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,SelfDestructingSolverStorable11 [2024-11-12 12:03:33,220 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 12:03:33,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:03:33,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1066261004, now seen corresponding path program 1 times [2024-11-12 12:03:33,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:03:33,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791782318] [2024-11-12 12:03:33,221 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:03:33,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:03:33,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:03:34,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-12 12:03:34,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:03:34,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-12 12:03:34,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:03:34,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-12 12:03:34,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:03:34,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-12 12:03:34,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:03:34,886 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 234 proven. 5 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2024-11-12 12:03:34,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:03:34,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791782318] [2024-11-12 12:03:34,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791782318] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 12:03:34,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1164736227] [2024-11-12 12:03:34,887 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:03:34,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 12:03:34,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 12:03:34,888 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 12:03:34,889 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-12 12:03:35,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:03:35,631 INFO L256 TraceCheckSpWp]: Trace formula consists of 2403 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-12 12:03:35,640 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 12:03:35,644 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 11 treesize of output 7 [2024-11-12 12:03:35,911 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 19 treesize of output 11 [2024-11-12 12:03:35,930 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 234 proven. 5 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2024-11-12 12:03:35,930 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 12:03:36,155 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 234 proven. 5 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2024-11-12 12:03:36,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1164736227] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 12:03:36,155 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 12:03:36,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 5] total 14 [2024-11-12 12:03:36,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414193556] [2024-11-12 12:03:36,156 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 12:03:36,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-12 12:03:36,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:03:36,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-12 12:03:36,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-11-12 12:03:36,159 INFO L87 Difference]: Start difference. First operand 2068 states and 2876 transitions. Second operand has 14 states, 14 states have (on average 46.285714285714285) internal successors, (648), 13 states have internal predecessors, (648), 4 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-12 12:03:37,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 12:03:37,196 INFO L93 Difference]: Finished difference Result 3985 states and 5573 transitions. [2024-11-12 12:03:37,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-12 12:03:37,197 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 46.285714285714285) internal successors, (648), 13 states have internal predecessors, (648), 4 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 487 [2024-11-12 12:03:37,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 12:03:37,206 INFO L225 Difference]: With dead ends: 3985 [2024-11-12 12:03:37,207 INFO L226 Difference]: Without dead ends: 2365 [2024-11-12 12:03:37,209 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 996 GetRequests, 971 SyntacticMatches, 7 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=287, Unknown=0, NotChecked=0, Total=380 [2024-11-12 12:03:37,210 INFO L435 NwaCegarLoop]: 1574 mSDtfsCounter, 2611 mSDsluCounter, 9847 mSDsCounter, 0 mSdLazyCounter, 791 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2641 SdHoareTripleChecker+Valid, 11421 SdHoareTripleChecker+Invalid, 835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-12 12:03:37,210 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2641 Valid, 11421 Invalid, 835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 791 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-12 12:03:37,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2365 states. [2024-11-12 12:03:37,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2365 to 2071. [2024-11-12 12:03:37,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2071 states, 2038 states have (on average 1.3846908734052994) internal successors, (2822), 2043 states have internal predecessors, (2822), 28 states have call successors, (28), 4 states have call predecessors, (28), 4 states have return successors, (27), 24 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-12 12:03:37,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2071 states to 2071 states and 2877 transitions. [2024-11-12 12:03:37,268 INFO L78 Accepts]: Start accepts. Automaton has 2071 states and 2877 transitions. Word has length 487 [2024-11-12 12:03:37,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 12:03:37,268 INFO L471 AbstractCegarLoop]: Abstraction has 2071 states and 2877 transitions. [2024-11-12 12:03:37,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 46.285714285714285) internal successors, (648), 13 states have internal predecessors, (648), 4 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-12 12:03:37,269 INFO L276 IsEmpty]: Start isEmpty. Operand 2071 states and 2877 transitions. [2024-11-12 12:03:37,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 701 [2024-11-12 12:03:37,284 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 12:03:37,285 INFO L218 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:03:37,311 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-12 12:03:37,485 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,SelfDestructingSolverStorable12 [2024-11-12 12:03:37,486 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 12:03:37,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:03:37,487 INFO L85 PathProgramCache]: Analyzing trace with hash -2088847690, now seen corresponding path program 1 times [2024-11-12 12:03:37,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:03:37,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522077414] [2024-11-12 12:03:37,487 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:03:37,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:03:37,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:03:41,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-12 12:03:41,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:03:41,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-12 12:03:41,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:03:41,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-12 12:03:41,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:03:41,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-12 12:03:41,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:03:41,433 INFO L134 CoverageAnalysis]: Checked inductivity of 908 backedges. 0 proven. 884 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-12 12:03:41,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:03:41,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522077414] [2024-11-12 12:03:41,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522077414] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 12:03:41,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1015030496] [2024-11-12 12:03:41,434 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:03:41,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 12:03:41,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 12:03:41,437 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) [2024-11-12 12:03:41,448 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-12 12:03:42,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:03:42,548 INFO L256 TraceCheckSpWp]: Trace formula consists of 3384 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-12 12:03:42,558 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 12:03:42,562 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 11 treesize of output 7 [2024-11-12 12:03:42,830 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 19 treesize of output 11 [2024-11-12 12:03:42,989 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 19 treesize of output 11 [2024-11-12 12:03:43,147 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 19 treesize of output 11 [2024-11-12 12:03:43,311 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 19 treesize of output 11 [2024-11-12 12:03:43,326 INFO L134 CoverageAnalysis]: Checked inductivity of 908 backedges. 0 proven. 884 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-12 12:03:43,326 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 12:03:44,109 INFO L134 CoverageAnalysis]: Checked inductivity of 908 backedges. 0 proven. 884 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-12 12:03:44,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1015030496] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 12:03:44,109 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 12:03:44,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 9, 8] total 25 [2024-11-12 12:03:44,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798639579] [2024-11-12 12:03:44,110 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 12:03:44,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-12 12:03:44,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:03:44,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-12 12:03:44,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=184, Invalid=416, Unknown=0, NotChecked=0, Total=600 [2024-11-12 12:03:44,114 INFO L87 Difference]: Start difference. First operand 2071 states and 2877 transitions. Second operand has 25 states, 25 states have (on average 75.72) internal successors, (1893), 24 states have internal predecessors, (1893), 4 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-12 12:03:46,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 12:03:46,630 INFO L93 Difference]: Finished difference Result 5002 states and 6963 transitions. [2024-11-12 12:03:46,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-12 12:03:46,635 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 75.72) internal successors, (1893), 24 states have internal predecessors, (1893), 4 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 700 [2024-11-12 12:03:46,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 12:03:46,651 INFO L225 Difference]: With dead ends: 5002 [2024-11-12 12:03:46,654 INFO L226 Difference]: Without dead ends: 4123 [2024-11-12 12:03:46,657 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1433 GetRequests, 1393 SyntacticMatches, 7 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 430 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=324, Invalid=866, Unknown=0, NotChecked=0, Total=1190 [2024-11-12 12:03:46,657 INFO L435 NwaCegarLoop]: 2682 mSDtfsCounter, 7251 mSDsluCounter, 25653 mSDsCounter, 0 mSdLazyCounter, 1746 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7330 SdHoareTripleChecker+Valid, 28335 SdHoareTripleChecker+Invalid, 1853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 1746 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-12 12:03:46,658 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7330 Valid, 28335 Invalid, 1853 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [107 Valid, 1746 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-12 12:03:46,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4123 states. [2024-11-12 12:03:46,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4123 to 3826. [2024-11-12 12:03:46,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3826 states, 3769 states have (on average 1.358981162111966) internal successors, (5122), 3774 states have internal predecessors, (5122), 52 states have call successors, (52), 4 states have call predecessors, (52), 4 states have return successors, (51), 48 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-12 12:03:46,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3826 states to 3826 states and 5225 transitions. [2024-11-12 12:03:46,746 INFO L78 Accepts]: Start accepts. Automaton has 3826 states and 5225 transitions. Word has length 700 [2024-11-12 12:03:46,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 12:03:46,747 INFO L471 AbstractCegarLoop]: Abstraction has 3826 states and 5225 transitions. [2024-11-12 12:03:46,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 75.72) internal successors, (1893), 24 states have internal predecessors, (1893), 4 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-12 12:03:46,747 INFO L276 IsEmpty]: Start isEmpty. Operand 3826 states and 5225 transitions. [2024-11-12 12:03:46,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1163 [2024-11-12 12:03:46,757 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 12:03:46,758 INFO L218 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:03:46,780 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-12 12:03:46,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 12:03:46,959 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 12:03:46,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:03:46,960 INFO L85 PathProgramCache]: Analyzing trace with hash -779114730, now seen corresponding path program 1 times [2024-11-12 12:03:46,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:03:46,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26985368] [2024-11-12 12:03:46,961 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:03:46,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:03:47,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:03:53,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-12 12:03:53,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:03:53,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-12 12:03:53,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:03:53,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-12 12:03:53,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:03:53,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-12 12:03:53,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:03:54,002 INFO L134 CoverageAnalysis]: Checked inductivity of 3911 backedges. 1851 proven. 896 refuted. 0 times theorem prover too weak. 1164 trivial. 0 not checked. [2024-11-12 12:03:54,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:03:54,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26985368] [2024-11-12 12:03:54,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26985368] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 12:03:54,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [754178443] [2024-11-12 12:03:54,003 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:03:54,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 12:03:54,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 12:03:54,004 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) [2024-11-12 12:03:54,005 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-12 12:03:55,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:03:55,565 INFO L256 TraceCheckSpWp]: Trace formula consists of 5664 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-12 12:03:55,580 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 12:03:55,583 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 11 treesize of output 7 [2024-11-12 12:03:55,869 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 19 treesize of output 11 [2024-11-12 12:03:56,081 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 19 treesize of output 11 [2024-11-12 12:03:56,242 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 19 treesize of output 11 [2024-11-12 12:03:56,403 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 19 treesize of output 11 [2024-11-12 12:03:56,427 INFO L134 CoverageAnalysis]: Checked inductivity of 3911 backedges. 1851 proven. 896 refuted. 0 times theorem prover too weak. 1164 trivial. 0 not checked. [2024-11-12 12:03:56,427 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 12:03:57,149 INFO L134 CoverageAnalysis]: Checked inductivity of 3911 backedges. 1851 proven. 896 refuted. 0 times theorem prover too weak. 1164 trivial. 0 not checked. [2024-11-12 12:03:57,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [754178443] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 12:03:57,149 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 12:03:57,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 9, 8] total 26 [2024-11-12 12:03:57,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013419863] [2024-11-12 12:03:57,150 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 12:03:57,152 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-12 12:03:57,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:03:57,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-12 12:03:57,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=188, Invalid=462, Unknown=0, NotChecked=0, Total=650 [2024-11-12 12:03:57,154 INFO L87 Difference]: Start difference. First operand 3826 states and 5225 transitions. Second operand has 26 states, 26 states have (on average 76.15384615384616) internal successors, (1980), 25 states have internal predecessors, (1980), 4 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-12 12:03:59,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 12:03:59,097 INFO L93 Difference]: Finished difference Result 6622 states and 9122 transitions. [2024-11-12 12:03:59,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-12 12:03:59,098 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 76.15384615384616) internal successors, (1980), 25 states have internal predecessors, (1980), 4 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 1162 [2024-11-12 12:03:59,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 12:03:59,109 INFO L225 Difference]: With dead ends: 6622 [2024-11-12 12:03:59,109 INFO L226 Difference]: Without dead ends: 4123 [2024-11-12 12:03:59,113 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2364 GetRequests, 2318 SyntacticMatches, 7 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 531 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=375, Invalid=1265, Unknown=0, NotChecked=0, Total=1640 [2024-11-12 12:03:59,114 INFO L435 NwaCegarLoop]: 2705 mSDtfsCounter, 6276 mSDsluCounter, 25860 mSDsCounter, 0 mSdLazyCounter, 1468 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6354 SdHoareTripleChecker+Valid, 28565 SdHoareTripleChecker+Invalid, 1596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 1468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-12 12:03:59,114 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6354 Valid, 28565 Invalid, 1596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 1468 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-12 12:03:59,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4123 states. [2024-11-12 12:03:59,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4123 to 3829. [2024-11-12 12:03:59,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3829 states, 3772 states have (on average 1.357370095440085) internal successors, (5120), 3777 states have internal predecessors, (5120), 52 states have call successors, (52), 4 states have call predecessors, (52), 4 states have return successors, (51), 48 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-12 12:03:59,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3829 states to 3829 states and 5223 transitions. [2024-11-12 12:03:59,198 INFO L78 Accepts]: Start accepts. Automaton has 3829 states and 5223 transitions. Word has length 1162 [2024-11-12 12:03:59,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 12:03:59,199 INFO L471 AbstractCegarLoop]: Abstraction has 3829 states and 5223 transitions. [2024-11-12 12:03:59,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 76.15384615384616) internal successors, (1980), 25 states have internal predecessors, (1980), 4 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-12 12:03:59,200 INFO L276 IsEmpty]: Start isEmpty. Operand 3829 states and 5223 transitions. [2024-11-12 12:03:59,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1589 [2024-11-12 12:03:59,214 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 12:03:59,215 INFO L218 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:03:59,248 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-12 12:03:59,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-12 12:03:59,416 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 12:03:59,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:03:59,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1684171480, now seen corresponding path program 2 times [2024-11-12 12:03:59,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:03:59,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572954924] [2024-11-12 12:03:59,417 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:03:59,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:04:00,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:04:03,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-12 12:04:03,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:04:03,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-12 12:04:03,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:04:03,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-12 12:04:03,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:04:03,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-12 12:04:03,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:04:03,621 INFO L134 CoverageAnalysis]: Checked inductivity of 6668 backedges. 1320 proven. 1 refuted. 0 times theorem prover too weak. 5347 trivial. 0 not checked. [2024-11-12 12:04:03,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:04:03,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572954924] [2024-11-12 12:04:03,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572954924] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 12:04:03,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1556251552] [2024-11-12 12:04:03,621 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-12 12:04:03,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 12:04:03,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 12:04:03,623 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) [2024-11-12 12:04:03,624 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-12 12:04:04,797 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-12 12:04:04,798 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 12:04:04,808 INFO L256 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-12 12:04:04,825 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 12:04:04,849 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 11 treesize of output 7 [2024-11-12 12:04:05,352 INFO L134 CoverageAnalysis]: Checked inductivity of 6668 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6668 trivial. 0 not checked. [2024-11-12 12:04:05,352 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 12:04:05,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1556251552] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:04:05,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-12 12:04:05,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [8] total 16 [2024-11-12 12:04:05,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762910440] [2024-11-12 12:04:05,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:04:05,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-12 12:04:05,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:04:05,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-12 12:04:05,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2024-11-12 12:04:05,355 INFO L87 Difference]: Start difference. First operand 3829 states and 5223 transitions. Second operand has 10 states, 10 states have (on average 24.2) internal successors, (242), 10 states have internal predecessors, (242), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-12 12:04:06,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 12:04:06,218 INFO L93 Difference]: Finished difference Result 4675 states and 6479 transitions. [2024-11-12 12:04:06,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-12 12:04:06,219 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 24.2) internal successors, (242), 10 states have internal predecessors, (242), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 1588 [2024-11-12 12:04:06,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 12:04:06,234 INFO L225 Difference]: With dead ends: 4675 [2024-11-12 12:04:06,235 INFO L226 Difference]: Without dead ends: 3835 [2024-11-12 12:04:06,237 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1610 GetRequests, 1589 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=92, Invalid=414, Unknown=0, NotChecked=0, Total=506 [2024-11-12 12:04:06,238 INFO L435 NwaCegarLoop]: 1236 mSDtfsCounter, 395 mSDsluCounter, 6532 mSDsCounter, 0 mSdLazyCounter, 653 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 397 SdHoareTripleChecker+Valid, 7768 SdHoareTripleChecker+Invalid, 653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 653 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-12 12:04:06,238 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [397 Valid, 7768 Invalid, 653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 653 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-12 12:04:06,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3835 states. [2024-11-12 12:04:06,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3835 to 3832. [2024-11-12 12:04:06,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3832 states, 3775 states have (on average 1.3570860927152317) internal successors, (5123), 3780 states have internal predecessors, (5123), 52 states have call successors, (52), 4 states have call predecessors, (52), 4 states have return successors, (51), 48 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-12 12:04:06,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3832 states to 3832 states and 5226 transitions. [2024-11-12 12:04:06,318 INFO L78 Accepts]: Start accepts. Automaton has 3832 states and 5226 transitions. Word has length 1588 [2024-11-12 12:04:06,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 12:04:06,320 INFO L471 AbstractCegarLoop]: Abstraction has 3832 states and 5226 transitions. [2024-11-12 12:04:06,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 24.2) internal successors, (242), 10 states have internal predecessors, (242), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-12 12:04:06,321 INFO L276 IsEmpty]: Start isEmpty. Operand 3832 states and 5226 transitions. [2024-11-12 12:04:06,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1589 [2024-11-12 12:04:06,450 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 12:04:06,450 INFO L218 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:04:06,471 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-12 12:04:06,651 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,SelfDestructingSolverStorable15 [2024-11-12 12:04:06,651 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 12:04:06,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:04:06,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1261645008, now seen corresponding path program 1 times [2024-11-12 12:04:06,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:04:06,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405261432] [2024-11-12 12:04:06,654 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:04:06,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:04:07,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:04:08,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-12 12:04:08,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:04:08,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-12 12:04:08,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:04:08,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-12 12:04:08,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:04:08,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-12 12:04:08,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:04:08,407 INFO L134 CoverageAnalysis]: Checked inductivity of 6668 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6668 trivial. 0 not checked. [2024-11-12 12:04:08,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:04:08,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405261432] [2024-11-12 12:04:08,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405261432] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:04:08,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:04:08,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:04:08,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988159482] [2024-11-12 12:04:08,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:04:08,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 12:04:08,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:04:08,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 12:04:08,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 12:04:08,410 INFO L87 Difference]: Start difference. First operand 3832 states and 5226 transitions. Second operand has 5 states, 5 states have (on average 48.4) internal successors, (242), 4 states have internal predecessors, (242), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-12 12:04:09,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 12:04:09,172 INFO L93 Difference]: Finished difference Result 4681 states and 6526 transitions. [2024-11-12 12:04:09,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:04:09,173 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 48.4) internal successors, (242), 4 states have internal predecessors, (242), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 1588 [2024-11-12 12:04:09,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 12:04:09,195 INFO L225 Difference]: With dead ends: 4681 [2024-11-12 12:04:09,195 INFO L226 Difference]: Without dead ends: 3829 [2024-11-12 12:04:09,198 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-12 12:04:09,199 INFO L435 NwaCegarLoop]: 1214 mSDtfsCounter, 32 mSDsluCounter, 3490 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 4704 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-12 12:04:09,199 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 4704 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-12 12:04:09,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3829 states. [2024-11-12 12:04:09,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3829 to 3823. [2024-11-12 12:04:09,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3823 states, 3766 states have (on average 1.35740839086564) internal successors, (5112), 3771 states have internal predecessors, (5112), 52 states have call successors, (52), 4 states have call predecessors, (52), 4 states have return successors, (51), 48 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-12 12:04:09,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3823 states to 3823 states and 5215 transitions. [2024-11-12 12:04:09,271 INFO L78 Accepts]: Start accepts. Automaton has 3823 states and 5215 transitions. Word has length 1588 [2024-11-12 12:04:09,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 12:04:09,273 INFO L471 AbstractCegarLoop]: Abstraction has 3823 states and 5215 transitions. [2024-11-12 12:04:09,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 48.4) internal successors, (242), 4 states have internal predecessors, (242), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-12 12:04:09,274 INFO L276 IsEmpty]: Start isEmpty. Operand 3823 states and 5215 transitions. [2024-11-12 12:04:09,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1590 [2024-11-12 12:04:09,287 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 12:04:09,288 INFO L218 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:04:09,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-12 12:04:09,288 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 12:04:09,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:04:09,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1949397264, now seen corresponding path program 1 times [2024-11-12 12:04:09,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:04:09,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453668293] [2024-11-12 12:04:09,290 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:04:09,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:04:10,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:04:13,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-12 12:04:13,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:04:13,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-12 12:04:13,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:04:13,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-12 12:04:13,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:04:13,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-12 12:04:13,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:04:13,392 INFO L134 CoverageAnalysis]: Checked inductivity of 6668 backedges. 1320 proven. 1 refuted. 0 times theorem prover too weak. 5347 trivial. 0 not checked. [2024-11-12 12:04:13,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:04:13,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453668293] [2024-11-12 12:04:13,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453668293] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 12:04:13,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [420784222] [2024-11-12 12:04:13,393 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:04:13,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 12:04:13,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 12:04:13,398 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) [2024-11-12 12:04:13,400 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-12 12:04:15,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:04:15,695 INFO L256 TraceCheckSpWp]: Trace formula consists of 7627 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-12 12:04:15,724 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 12:04:15,731 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 11 treesize of output 7 [2024-11-12 12:04:16,023 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 19 treesize of output 11 [2024-11-12 12:04:16,170 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 19 treesize of output 11 [2024-11-12 12:04:16,337 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 19 treesize of output 11 [2024-11-12 12:04:16,500 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 19 treesize of output 11 [2024-11-12 12:04:16,659 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 19 treesize of output 11 [2024-11-12 12:04:16,804 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 19 treesize of output 11 [2024-11-12 12:04:16,948 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 19 treesize of output 11 [2024-11-12 12:04:17,129 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 19 treesize of output 11 [2024-11-12 12:04:17,291 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 19 treesize of output 11 [2024-11-12 12:04:17,458 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 19 treesize of output 11 [2024-11-12 12:04:17,478 INFO L134 CoverageAnalysis]: Checked inductivity of 6668 backedges. 0 proven. 6644 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-12 12:04:17,478 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 12:04:19,315 INFO L134 CoverageAnalysis]: Checked inductivity of 6668 backedges. 0 proven. 6644 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-12 12:04:19,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [420784222] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 12:04:19,315 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 12:04:19,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 15, 14] total 32 [2024-11-12 12:04:19,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468167417] [2024-11-12 12:04:19,316 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 12:04:19,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-12 12:04:19,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:04:19,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-12 12:04:19,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=283, Invalid=709, Unknown=0, NotChecked=0, Total=992 [2024-11-12 12:04:19,322 INFO L87 Difference]: Start difference. First operand 3823 states and 5215 transitions. Second operand has 32 states, 32 states have (on average 105.625) internal successors, (3380), 31 states have internal predecessors, (3380), 4 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-12 12:04:24,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 12:04:24,290 INFO L93 Difference]: Finished difference Result 7286 states and 10032 transitions. [2024-11-12 12:04:24,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2024-11-12 12:04:24,291 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 105.625) internal successors, (3380), 31 states have internal predecessors, (3380), 4 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 1589 [2024-11-12 12:04:24,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 12:04:24,306 INFO L225 Difference]: With dead ends: 7286 [2024-11-12 12:04:24,307 INFO L226 Difference]: Without dead ends: 6116 [2024-11-12 12:04:24,312 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3240 GetRequests, 3156 SyntacticMatches, 7 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1819 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1320, Invalid=4842, Unknown=0, NotChecked=0, Total=6162 [2024-11-12 12:04:24,313 INFO L435 NwaCegarLoop]: 4750 mSDtfsCounter, 8165 mSDsluCounter, 75974 mSDsCounter, 0 mSdLazyCounter, 4275 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8330 SdHoareTripleChecker+Valid, 80724 SdHoareTripleChecker+Invalid, 4358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 4275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-12 12:04:24,313 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8330 Valid, 80724 Invalid, 4358 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [83 Valid, 4275 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-12 12:04:24,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6116 states. [2024-11-12 12:04:24,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6116 to 5961. [2024-11-12 12:04:24,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5961 states, 5864 states have (on average 1.3415757162346522) internal successors, (7867), 5869 states have internal predecessors, (7867), 92 states have call successors, (92), 4 states have call predecessors, (92), 4 states have return successors, (91), 88 states have call predecessors, (91), 91 states have call successors, (91) [2024-11-12 12:04:24,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5961 states to 5961 states and 8050 transitions. [2024-11-12 12:04:24,450 INFO L78 Accepts]: Start accepts. Automaton has 5961 states and 8050 transitions. Word has length 1589 [2024-11-12 12:04:24,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 12:04:24,452 INFO L471 AbstractCegarLoop]: Abstraction has 5961 states and 8050 transitions. [2024-11-12 12:04:24,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 105.625) internal successors, (3380), 31 states have internal predecessors, (3380), 4 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-12 12:04:24,453 INFO L276 IsEmpty]: Start isEmpty. Operand 5961 states and 8050 transitions. [2024-11-12 12:04:24,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2514 [2024-11-12 12:04:24,483 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 12:04:24,484 INFO L218 NwaCegarLoop]: trace histogram [23, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:04:24,525 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-12 12:04:24,688 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,SelfDestructingSolverStorable17 [2024-11-12 12:04:24,689 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 12:04:24,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:04:24,691 INFO L85 PathProgramCache]: Analyzing trace with hash 184383312, now seen corresponding path program 1 times [2024-11-12 12:04:24,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:04:24,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919605201] [2024-11-12 12:04:24,691 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:04:24,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:04:26,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat