./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-2.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 32a779d95d64b7b3ae1a801430dde2c7d15b3372c5d0cdd47679441a42687631 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 16:22:18,975 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 16:22:19,069 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 16:22:19,075 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 16:22:19,076 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 16:22:19,108 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 16:22:19,109 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 16:22:19,109 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 16:22:19,110 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 16:22:19,112 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 16:22:19,112 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 16:22:19,113 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 16:22:19,113 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 16:22:19,114 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 16:22:19,114 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 16:22:19,114 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 16:22:19,114 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 16:22:19,115 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 16:22:19,115 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 16:22:19,115 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 16:22:19,115 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 16:22:19,117 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 16:22:19,118 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 16:22:19,118 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 16:22:19,118 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 16:22:19,118 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 16:22:19,119 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 16:22:19,119 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 16:22:19,119 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 16:22:19,119 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 16:22:19,120 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 16:22:19,120 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 16:22:19,120 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 16:22:19,120 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 16:22:19,120 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 16:22:19,121 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 16:22:19,121 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 16:22:19,121 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 16:22:19,123 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 16:22:19,123 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 16:22:19,123 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 16:22:19,123 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 16:22:19,123 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 32a779d95d64b7b3ae1a801430dde2c7d15b3372c5d0cdd47679441a42687631 [2024-10-14 16:22:19,397 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 16:22:19,418 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 16:22:19,421 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 16:22:19,422 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 16:22:19,423 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 16:22:19,424 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-2.i [2024-10-14 16:22:20,833 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 16:22:21,144 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 16:22:21,145 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-2.i [2024-10-14 16:22:21,165 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e2441ebc/52993da7934f44d29f6000f81d5b2663/FLAG69601c60a [2024-10-14 16:22:21,399 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e2441ebc/52993da7934f44d29f6000f81d5b2663 [2024-10-14 16:22:21,402 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 16:22:21,403 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 16:22:21,407 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 16:22:21,407 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 16:22:21,413 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 16:22:21,413 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:22:21" (1/1) ... [2024-10-14 16:22:21,414 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e9b56fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:22:21, skipping insertion in model container [2024-10-14 16:22:21,414 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:22:21" (1/1) ... [2024-10-14 16:22:21,471 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 16:22:21,907 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-2.i[33021,33034] [2024-10-14 16:22:22,043 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-2.i[44590,44603] [2024-10-14 16:22:22,061 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 16:22:22,083 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 16:22:22,126 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-2.i[33021,33034] [2024-10-14 16:22:22,190 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-2.i[44590,44603] [2024-10-14 16:22:22,200 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 16:22:22,240 INFO L204 MainTranslator]: Completed translation [2024-10-14 16:22:22,241 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:22:22 WrapperNode [2024-10-14 16:22:22,241 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 16:22:22,242 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 16:22:22,242 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 16:22:22,242 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 16:22:22,249 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:22:22" (1/1) ... [2024-10-14 16:22:22,295 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:22:22" (1/1) ... [2024-10-14 16:22:22,397 INFO L138 Inliner]: procedures = 177, calls = 328, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1621 [2024-10-14 16:22:22,397 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 16:22:22,398 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 16:22:22,399 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 16:22:22,399 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 16:22:22,409 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:22:22" (1/1) ... [2024-10-14 16:22:22,410 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:22:22" (1/1) ... [2024-10-14 16:22:22,429 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:22:22" (1/1) ... [2024-10-14 16:22:22,520 INFO L175 MemorySlicer]: Split 303 memory accesses to 3 slices as follows [2, 34, 267]. 88 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 62 writes are split as follows [0, 4, 58]. [2024-10-14 16:22:22,522 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:22:22" (1/1) ... [2024-10-14 16:22:22,523 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:22:22" (1/1) ... [2024-10-14 16:22:22,567 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:22:22" (1/1) ... [2024-10-14 16:22:22,589 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:22:22" (1/1) ... [2024-10-14 16:22:22,597 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:22:22" (1/1) ... [2024-10-14 16:22:22,604 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:22:22" (1/1) ... [2024-10-14 16:22:22,615 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 16:22:22,616 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 16:22:22,616 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 16:22:22,616 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 16:22:22,617 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:22:22" (1/1) ... [2024-10-14 16:22:22,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 16:22:22,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 16:22:22,651 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) [2024-10-14 16:22:22,654 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 [2024-10-14 16:22:22,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-14 16:22:22,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-14 16:22:22,703 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-14 16:22:22,703 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-14 16:22:22,703 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-14 16:22:22,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-14 16:22:22,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-14 16:22:22,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-14 16:22:22,705 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-10-14 16:22:22,705 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-10-14 16:22:22,705 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-10-14 16:22:22,705 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-10-14 16:22:22,706 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-10-14 16:22:22,706 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-10-14 16:22:22,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-14 16:22:22,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 16:22:22,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-14 16:22:22,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-14 16:22:22,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-14 16:22:22,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-14 16:22:22,707 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-14 16:22:22,707 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-14 16:22:22,707 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-14 16:22:22,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-14 16:22:22,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 16:22:22,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-14 16:22:22,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-14 16:22:22,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 16:22:22,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 16:22:22,997 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 16:22:23,000 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 16:22:24,610 INFO L? ?]: Removed 347 outVars from TransFormulas that were not future-live. [2024-10-14 16:22:24,610 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 16:22:24,676 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 16:22:24,676 INFO L314 CfgBuilder]: Removed 72 assume(true) statements. [2024-10-14 16:22:24,677 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:22:24 BoogieIcfgContainer [2024-10-14 16:22:24,677 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 16:22:24,679 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 16:22:24,679 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 16:22:24,683 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 16:22:24,683 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 04:22:21" (1/3) ... [2024-10-14 16:22:24,684 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@243173a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:22:24, skipping insertion in model container [2024-10-14 16:22:24,684 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:22:22" (2/3) ... [2024-10-14 16:22:24,686 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@243173a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:22:24, skipping insertion in model container [2024-10-14 16:22:24,686 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:22:24" (3/3) ... [2024-10-14 16:22:24,689 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_test3-2.i [2024-10-14 16:22:24,714 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 16:22:24,715 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-14 16:22:24,804 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 16:22:24,811 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;@623aa9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 16:22:24,812 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-14 16:22:24,820 INFO L276 IsEmpty]: Start isEmpty. Operand has 440 states, 427 states have (on average 1.6346604215456675) internal successors, (698), 434 states have internal predecessors, (698), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-14 16:22:24,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-10-14 16:22:24,828 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 16:22:24,829 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 16:22:24,830 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 16:22:24,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:22:24,838 INFO L85 PathProgramCache]: Analyzing trace with hash 751559642, now seen corresponding path program 1 times [2024-10-14 16:22:24,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:22:24,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990766564] [2024-10-14 16:22:24,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:22:24,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:22:24,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:22:25,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:22:25,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:22:25,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990766564] [2024-10-14 16:22:25,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990766564] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:22:25,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:22:25,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 16:22:25,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986696430] [2024-10-14 16:22:25,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:22:25,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 16:22:25,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:22:25,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 16:22:25,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 16:22:25,061 INFO L87 Difference]: Start difference. First operand has 440 states, 427 states have (on average 1.6346604215456675) internal successors, (698), 434 states have internal predecessors, (698), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:22:25,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 16:22:25,173 INFO L93 Difference]: Finished difference Result 879 states and 1432 transitions. [2024-10-14 16:22:25,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 16:22:25,178 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-10-14 16:22:25,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 16:22:25,193 INFO L225 Difference]: With dead ends: 879 [2024-10-14 16:22:25,195 INFO L226 Difference]: Without dead ends: 404 [2024-10-14 16:22:25,201 INFO L431 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 [2024-10-14 16:22:25,205 INFO L432 NwaCegarLoop]: 631 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 16:22:25,206 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 631 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 16:22:25,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2024-10-14 16:22:25,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 404. [2024-10-14 16:22:25,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 392 states have (on average 1.4566326530612246) internal successors, (571), 398 states have internal predecessors, (571), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-14 16:22:25,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 587 transitions. [2024-10-14 16:22:25,289 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 587 transitions. Word has length 8 [2024-10-14 16:22:25,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 16:22:25,290 INFO L471 AbstractCegarLoop]: Abstraction has 404 states and 587 transitions. [2024-10-14 16:22:25,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:22:25,291 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 587 transitions. [2024-10-14 16:22:25,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-10-14 16:22:25,292 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 16:22:25,292 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 16:22:25,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 16:22:25,293 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 16:22:25,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:22:25,294 INFO L85 PathProgramCache]: Analyzing trace with hash 1721610290, now seen corresponding path program 1 times [2024-10-14 16:22:25,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:22:25,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512190592] [2024-10-14 16:22:25,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:22:25,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:22:25,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:22:25,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:22:25,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:22:25,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512190592] [2024-10-14 16:22:25,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512190592] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:22:25,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:22:25,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 16:22:25,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458887651] [2024-10-14 16:22:25,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:22:25,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 16:22:25,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:22:25,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 16:22:25,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 16:22:25,520 INFO L87 Difference]: Start difference. First operand 404 states and 587 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:22:25,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 16:22:25,721 INFO L93 Difference]: Finished difference Result 1002 states and 1464 transitions. [2024-10-14 16:22:25,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 16:22:25,722 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-10-14 16:22:25,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 16:22:25,726 INFO L225 Difference]: With dead ends: 1002 [2024-10-14 16:22:25,726 INFO L226 Difference]: Without dead ends: 797 [2024-10-14 16:22:25,728 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 16:22:25,729 INFO L432 NwaCegarLoop]: 566 mSDtfsCounter, 558 mSDsluCounter, 1122 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 566 SdHoareTripleChecker+Valid, 1688 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 16:22:25,729 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [566 Valid, 1688 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 16:22:25,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 797 states. [2024-10-14 16:22:25,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 797 to 406. [2024-10-14 16:22:25,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 394 states have (on average 1.4543147208121827) internal successors, (573), 400 states have internal predecessors, (573), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-14 16:22:25,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 589 transitions. [2024-10-14 16:22:25,764 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 589 transitions. Word has length 13 [2024-10-14 16:22:25,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 16:22:25,765 INFO L471 AbstractCegarLoop]: Abstraction has 406 states and 589 transitions. [2024-10-14 16:22:25,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:22:25,765 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 589 transitions. [2024-10-14 16:22:25,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-10-14 16:22:25,768 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 16:22:25,769 INFO L215 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] [2024-10-14 16:22:25,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 16:22:25,769 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 16:22:25,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:22:25,770 INFO L85 PathProgramCache]: Analyzing trace with hash -1866578605, now seen corresponding path program 1 times [2024-10-14 16:22:25,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:22:25,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160980146] [2024-10-14 16:22:25,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:22:25,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:22:25,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:22:26,292 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:22:26,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:22:26,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160980146] [2024-10-14 16:22:26,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160980146] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:22:26,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:22:26,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 16:22:26,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409237807] [2024-10-14 16:22:26,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:22:26,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 16:22:26,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:22:26,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 16:22:26,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 16:22:26,295 INFO L87 Difference]: Start difference. First operand 406 states and 589 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:22:26,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 16:22:26,426 INFO L93 Difference]: Finished difference Result 767 states and 1109 transitions. [2024-10-14 16:22:26,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 16:22:26,428 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2024-10-14 16:22:26,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 16:22:26,431 INFO L225 Difference]: With dead ends: 767 [2024-10-14 16:22:26,432 INFO L226 Difference]: Without dead ends: 364 [2024-10-14 16:22:26,433 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 16:22:26,437 INFO L432 NwaCegarLoop]: 482 mSDtfsCounter, 30 mSDsluCounter, 947 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 1429 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 16:22:26,438 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 1429 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 16:22:26,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2024-10-14 16:22:26,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 364. [2024-10-14 16:22:26,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 352 states have (on average 1.4090909090909092) internal successors, (496), 358 states have internal predecessors, (496), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-14 16:22:26,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 512 transitions. [2024-10-14 16:22:26,461 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 512 transitions. Word has length 89 [2024-10-14 16:22:26,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 16:22:26,462 INFO L471 AbstractCegarLoop]: Abstraction has 364 states and 512 transitions. [2024-10-14 16:22:26,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:22:26,463 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 512 transitions. [2024-10-14 16:22:26,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-10-14 16:22:26,467 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 16:22:26,467 INFO L215 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] [2024-10-14 16:22:26,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 16:22:26,468 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 16:22:26,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:22:26,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1058779103, now seen corresponding path program 1 times [2024-10-14 16:22:26,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:22:26,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680171369] [2024-10-14 16:22:26,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:22:26,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:22:26,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:22:26,686 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:22:26,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:22:26,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680171369] [2024-10-14 16:22:26,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680171369] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:22:26,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:22:26,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 16:22:26,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124955157] [2024-10-14 16:22:26,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:22:26,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 16:22:26,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:22:26,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 16:22:26,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 16:22:26,690 INFO L87 Difference]: Start difference. First operand 364 states and 512 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:22:26,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 16:22:26,800 INFO L93 Difference]: Finished difference Result 988 states and 1404 transitions. [2024-10-14 16:22:26,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 16:22:26,801 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2024-10-14 16:22:26,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 16:22:26,805 INFO L225 Difference]: With dead ends: 988 [2024-10-14 16:22:26,806 INFO L226 Difference]: Without dead ends: 627 [2024-10-14 16:22:26,807 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 16:22:26,811 INFO L432 NwaCegarLoop]: 705 mSDtfsCounter, 308 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 1188 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 16:22:26,811 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 1188 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 16:22:26,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2024-10-14 16:22:26,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 611. [2024-10-14 16:22:26,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 611 states, 599 states have (on average 1.4223706176961604) internal successors, (852), 605 states have internal predecessors, (852), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-14 16:22:26,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 868 transitions. [2024-10-14 16:22:26,833 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 868 transitions. Word has length 89 [2024-10-14 16:22:26,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 16:22:26,835 INFO L471 AbstractCegarLoop]: Abstraction has 611 states and 868 transitions. [2024-10-14 16:22:26,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:22:26,836 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 868 transitions. [2024-10-14 16:22:26,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-10-14 16:22:26,841 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 16:22:26,842 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 16:22:26,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 16:22:26,842 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 16:22:26,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:22:26,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1238474065, now seen corresponding path program 1 times [2024-10-14 16:22:26,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:22:26,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015215778] [2024-10-14 16:22:26,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:22:26,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:22:26,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:22:27,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 16:22:27,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:22:27,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 16:22:27,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:22:27,293 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-14 16:22:27,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:22:27,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015215778] [2024-10-14 16:22:27,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015215778] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:22:27,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:22:27,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 16:22:27,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751252044] [2024-10-14 16:22:27,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:22:27,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 16:22:27,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:22:27,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 16:22:27,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 16:22:27,300 INFO L87 Difference]: Start difference. First operand 611 states and 868 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-14 16:22:27,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 16:22:27,749 INFO L93 Difference]: Finished difference Result 910 states and 1299 transitions. [2024-10-14 16:22:27,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 16:22:27,750 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 102 [2024-10-14 16:22:27,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 16:22:27,770 INFO L225 Difference]: With dead ends: 910 [2024-10-14 16:22:27,773 INFO L226 Difference]: Without dead ends: 891 [2024-10-14 16:22:27,775 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-14 16:22:27,776 INFO L432 NwaCegarLoop]: 476 mSDtfsCounter, 465 mSDsluCounter, 1333 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 471 SdHoareTripleChecker+Valid, 1809 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 16:22:27,778 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [471 Valid, 1809 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 16:22:27,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 891 states. [2024-10-14 16:22:27,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 891 to 613. [2024-10-14 16:22:27,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 613 states, 601 states have (on average 1.420965058236273) internal successors, (854), 607 states have internal predecessors, (854), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-14 16:22:27,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 870 transitions. [2024-10-14 16:22:27,804 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 870 transitions. Word has length 102 [2024-10-14 16:22:27,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 16:22:27,807 INFO L471 AbstractCegarLoop]: Abstraction has 613 states and 870 transitions. [2024-10-14 16:22:27,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-14 16:22:27,808 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 870 transitions. [2024-10-14 16:22:27,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-14 16:22:27,814 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 16:22:27,815 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 16:22:27,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 16:22:27,815 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 16:22:27,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:22:27,816 INFO L85 PathProgramCache]: Analyzing trace with hash 535773823, now seen corresponding path program 1 times [2024-10-14 16:22:27,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:22:27,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775652057] [2024-10-14 16:22:27,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:22:27,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:22:27,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:22:28,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 16:22:28,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:22:28,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 16:22:28,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:22:28,177 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-14 16:22:28,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:22:28,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775652057] [2024-10-14 16:22:28,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775652057] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:22:28,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:22:28,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 16:22:28,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89322507] [2024-10-14 16:22:28,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:22:28,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 16:22:28,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:22:28,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 16:22:28,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 16:22:28,183 INFO L87 Difference]: Start difference. First operand 613 states and 870 transitions. Second operand has 5 states, 5 states have (on average 29.0) internal successors, (145), 4 states have internal predecessors, (145), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-14 16:22:28,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 16:22:28,514 INFO L93 Difference]: Finished difference Result 895 states and 1280 transitions. [2024-10-14 16:22:28,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 16:22:28,515 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 4 states have internal predecessors, (145), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 152 [2024-10-14 16:22:28,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 16:22:28,518 INFO L225 Difference]: With dead ends: 895 [2024-10-14 16:22:28,519 INFO L226 Difference]: Without dead ends: 531 [2024-10-14 16:22:28,520 INFO L431 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 [2024-10-14 16:22:28,521 INFO L432 NwaCegarLoop]: 393 mSDtfsCounter, 37 mSDsluCounter, 1070 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 1463 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 16:22:28,523 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 1463 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 16:22:28,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2024-10-14 16:22:28,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 529. [2024-10-14 16:22:28,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 517 states have (on average 1.3539651837524178) internal successors, (700), 523 states have internal predecessors, (700), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-14 16:22:28,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 716 transitions. [2024-10-14 16:22:28,541 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 716 transitions. Word has length 152 [2024-10-14 16:22:28,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 16:22:28,541 INFO L471 AbstractCegarLoop]: Abstraction has 529 states and 716 transitions. [2024-10-14 16:22:28,542 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 4 states have internal predecessors, (145), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-14 16:22:28,543 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 716 transitions. [2024-10-14 16:22:28,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-14 16:22:28,545 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 16:22:28,545 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 16:22:28,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 16:22:28,548 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 16:22:28,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:22:28,549 INFO L85 PathProgramCache]: Analyzing trace with hash -635740301, now seen corresponding path program 1 times [2024-10-14 16:22:28,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:22:28,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748116128] [2024-10-14 16:22:28,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:22:28,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:22:28,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:22:28,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 16:22:28,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:22:28,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 16:22:28,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:22:28,874 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-14 16:22:28,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:22:28,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748116128] [2024-10-14 16:22:28,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748116128] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:22:28,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:22:28,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 16:22:28,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493993201] [2024-10-14 16:22:28,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:22:28,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 16:22:28,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:22:28,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 16:22:28,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-14 16:22:28,878 INFO L87 Difference]: Start difference. First operand 529 states and 716 transitions. Second operand has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-14 16:22:29,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 16:22:29,766 INFO L93 Difference]: Finished difference Result 1338 states and 1826 transitions. [2024-10-14 16:22:29,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 16:22:29,767 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 152 [2024-10-14 16:22:29,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 16:22:29,772 INFO L225 Difference]: With dead ends: 1338 [2024-10-14 16:22:29,773 INFO L226 Difference]: Without dead ends: 899 [2024-10-14 16:22:29,774 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-10-14 16:22:29,777 INFO L432 NwaCegarLoop]: 501 mSDtfsCounter, 939 mSDsluCounter, 1416 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 951 SdHoareTripleChecker+Valid, 1917 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-14 16:22:29,777 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [951 Valid, 1917 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-14 16:22:29,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 899 states. [2024-10-14 16:22:29,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 899 to 668. [2024-10-14 16:22:29,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 668 states, 656 states have (on average 1.3551829268292683) internal successors, (889), 662 states have internal predecessors, (889), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-14 16:22:29,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668 states to 668 states and 905 transitions. [2024-10-14 16:22:29,804 INFO L78 Accepts]: Start accepts. Automaton has 668 states and 905 transitions. Word has length 152 [2024-10-14 16:22:29,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 16:22:29,805 INFO L471 AbstractCegarLoop]: Abstraction has 668 states and 905 transitions. [2024-10-14 16:22:29,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-14 16:22:29,805 INFO L276 IsEmpty]: Start isEmpty. Operand 668 states and 905 transitions. [2024-10-14 16:22:29,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-14 16:22:29,807 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 16:22:29,807 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 16:22:29,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 16:22:29,807 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 16:22:29,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:22:29,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1369233767, now seen corresponding path program 1 times [2024-10-14 16:22:29,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:22:29,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437010069] [2024-10-14 16:22:29,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:22:29,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:22:29,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:22:30,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 16:22:30,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:22:30,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 16:22:30,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:22:30,591 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-14 16:22:30,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:22:30,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437010069] [2024-10-14 16:22:30,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437010069] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 16:22:30,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1758359527] [2024-10-14 16:22:30,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:22:30,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 16:22:30,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 16:22:30,594 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) [2024-10-14 16:22:30,596 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 16:22:30,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:22:30,976 INFO L255 TraceCheckSpWp]: Trace formula consists of 767 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-14 16:22:30,988 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 16:22:31,024 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 [2024-10-14 16:22:31,294 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 23 treesize of output 3 [2024-10-14 16:22:31,304 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-10-14 16:22:31,314 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-14 16:22:31,315 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 16:22:31,535 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-14 16:22:31,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1758359527] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 16:22:31,536 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 16:22:31,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 12 [2024-10-14 16:22:31,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213524817] [2024-10-14 16:22:31,536 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 16:22:31,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 16:22:31,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:22:31,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 16:22:31,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-10-14 16:22:31,538 INFO L87 Difference]: Start difference. First operand 668 states and 905 transitions. Second operand has 12 states, 12 states have (on average 27.0) internal successors, (324), 11 states have internal predecessors, (324), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-10-14 16:22:32,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 16:22:32,335 INFO L93 Difference]: Finished difference Result 2161 states and 2937 transitions. [2024-10-14 16:22:32,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-14 16:22:32,336 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 27.0) internal successors, (324), 11 states have internal predecessors, (324), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 162 [2024-10-14 16:22:32,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 16:22:32,345 INFO L225 Difference]: With dead ends: 2161 [2024-10-14 16:22:32,346 INFO L226 Difference]: Without dead ends: 1739 [2024-10-14 16:22:32,348 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 320 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2024-10-14 16:22:32,349 INFO L432 NwaCegarLoop]: 442 mSDtfsCounter, 1097 mSDsluCounter, 3319 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1110 SdHoareTripleChecker+Valid, 3761 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-14 16:22:32,350 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1110 Valid, 3761 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-14 16:22:32,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1739 states. [2024-10-14 16:22:32,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1739 to 1014. [2024-10-14 16:22:32,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1014 states, 998 states have (on average 1.3476953907815632) internal successors, (1345), 1004 states have internal predecessors, (1345), 11 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-14 16:22:32,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1014 states to 1014 states and 1367 transitions. [2024-10-14 16:22:32,406 INFO L78 Accepts]: Start accepts. Automaton has 1014 states and 1367 transitions. Word has length 162 [2024-10-14 16:22:32,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 16:22:32,407 INFO L471 AbstractCegarLoop]: Abstraction has 1014 states and 1367 transitions. [2024-10-14 16:22:32,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 27.0) internal successors, (324), 11 states have internal predecessors, (324), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-10-14 16:22:32,407 INFO L276 IsEmpty]: Start isEmpty. Operand 1014 states and 1367 transitions. [2024-10-14 16:22:32,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2024-10-14 16:22:32,412 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 16:22:32,413 INFO L215 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, 3, 3, 3, 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] [2024-10-14 16:22:32,434 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-14 16:22:32,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 16:22:32,614 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 16:22:32,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:22:32,617 INFO L85 PathProgramCache]: Analyzing trace with hash -426138130, now seen corresponding path program 1 times [2024-10-14 16:22:32,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:22:32,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697770127] [2024-10-14 16:22:32,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:22:32,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:22:32,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:22:36,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 16:22:36,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:22:36,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 16:22:36,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:22:36,450 INFO L134 CoverageAnalysis]: Checked inductivity of 461 backedges. 0 proven. 458 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-14 16:22:36,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:22:36,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697770127] [2024-10-14 16:22:36,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697770127] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 16:22:36,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1229485984] [2024-10-14 16:22:36,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:22:36,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 16:22:36,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 16:22:36,453 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) [2024-10-14 16:22:36,455 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 16:22:37,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:22:37,190 INFO L255 TraceCheckSpWp]: Trace formula consists of 1898 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-14 16:22:37,211 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 16:22:37,219 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 [2024-10-14 16:22:37,452 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 23 treesize of output 3 [2024-10-14 16:22:37,579 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 36 treesize of output 13 [2024-10-14 16:22:37,697 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 36 treesize of output 13 [2024-10-14 16:22:37,809 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 36 treesize of output 13 [2024-10-14 16:22:37,818 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-10-14 16:22:37,824 INFO L134 CoverageAnalysis]: Checked inductivity of 461 backedges. 0 proven. 458 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-14 16:22:37,825 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 16:22:38,428 INFO L134 CoverageAnalysis]: Checked inductivity of 461 backedges. 0 proven. 458 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-14 16:22:38,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1229485984] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 16:22:38,429 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 16:22:38,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 8, 8] total 21 [2024-10-14 16:22:38,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829239152] [2024-10-14 16:22:38,430 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 16:22:38,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-10-14 16:22:38,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:22:38,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-10-14 16:22:38,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=274, Unknown=0, NotChecked=0, Total=420 [2024-10-14 16:22:38,434 INFO L87 Difference]: Start difference. First operand 1014 states and 1367 transitions. Second operand has 21 states, 21 states have (on average 37.42857142857143) internal successors, (786), 20 states have internal predecessors, (786), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-10-14 16:22:39,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 16:22:39,610 INFO L93 Difference]: Finished difference Result 4264 states and 5808 transitions. [2024-10-14 16:22:39,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-10-14 16:22:39,611 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 37.42857142857143) internal successors, (786), 20 states have internal predecessors, (786), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 390 [2024-10-14 16:22:39,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 16:22:39,626 INFO L225 Difference]: With dead ends: 4264 [2024-10-14 16:22:39,627 INFO L226 Difference]: Without dead ends: 3842 [2024-10-14 16:22:39,629 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 803 GetRequests, 774 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=229, Invalid=527, Unknown=0, NotChecked=0, Total=756 [2024-10-14 16:22:39,630 INFO L432 NwaCegarLoop]: 443 mSDtfsCounter, 5665 mSDsluCounter, 6048 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5705 SdHoareTripleChecker+Valid, 6491 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-14 16:22:39,631 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5705 Valid, 6491 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-14 16:22:39,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3842 states. [2024-10-14 16:22:39,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3842 to 1878. [2024-10-14 16:22:39,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1878 states, 1856 states have (on average 1.3421336206896552) internal successors, (2491), 1862 states have internal predecessors, (2491), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 13 states have call predecessors, (17), 17 states have call successors, (17) [2024-10-14 16:22:39,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1878 states to 1878 states and 2525 transitions. [2024-10-14 16:22:39,719 INFO L78 Accepts]: Start accepts. Automaton has 1878 states and 2525 transitions. Word has length 390 [2024-10-14 16:22:39,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 16:22:39,720 INFO L471 AbstractCegarLoop]: Abstraction has 1878 states and 2525 transitions. [2024-10-14 16:22:39,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 37.42857142857143) internal successors, (786), 20 states have internal predecessors, (786), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-10-14 16:22:39,720 INFO L276 IsEmpty]: Start isEmpty. Operand 1878 states and 2525 transitions. [2024-10-14 16:22:39,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 847 [2024-10-14 16:22:39,738 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 16:22:39,738 INFO L215 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, 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] [2024-10-14 16:22:39,763 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-14 16:22:39,942 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,SelfDestructingSolverStorable8 [2024-10-14 16:22:39,943 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 16:22:39,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:22:39,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1343692924, now seen corresponding path program 2 times [2024-10-14 16:22:39,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:22:39,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033987991] [2024-10-14 16:22:39,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:22:39,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms