./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem11_label30.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3582ae43-69f4-4eee-993c-7c386a475c83/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3582ae43-69f4-4eee-993c-7c386a475c83/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3582ae43-69f4-4eee-993c-7c386a475c83/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3582ae43-69f4-4eee-993c-7c386a475c83/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem11_label30.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3582ae43-69f4-4eee-993c-7c386a475c83/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3582ae43-69f4-4eee-993c-7c386a475c83/bin/uautomizer-verify-jihMAELWvX --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 80c5c0aba72ae94b1a7faaff5d18dcb1975bca24b2cca6ada65386f045cad987 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 17:26:18,257 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 17:26:18,338 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3582ae43-69f4-4eee-993c-7c386a475c83/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 17:26:18,342 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 17:26:18,343 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 17:26:18,380 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 17:26:18,380 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 17:26:18,381 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 17:26:18,381 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 17:26:18,382 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 17:26:18,382 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 17:26:18,382 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 17:26:18,383 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 17:26:18,383 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 17:26:18,384 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 17:26:18,384 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 17:26:18,385 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 17:26:18,385 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 17:26:18,386 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 17:26:18,386 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 17:26:18,386 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 17:26:18,387 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 17:26:18,387 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 17:26:18,387 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 17:26:18,388 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 17:26:18,388 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 17:26:18,388 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 17:26:18,389 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 17:26:18,389 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 17:26:18,389 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 17:26:18,390 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 17:26:18,390 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 17:26:18,391 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:26:18,391 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 17:26:18,391 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 17:26:18,392 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 17:26:18,392 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 17:26:18,392 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 17:26:18,393 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 17:26:18,393 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 17:26:18,393 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 17:26:18,394 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 17:26:18,394 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3582ae43-69f4-4eee-993c-7c386a475c83/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3582ae43-69f4-4eee-993c-7c386a475c83/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 80c5c0aba72ae94b1a7faaff5d18dcb1975bca24b2cca6ada65386f045cad987 [2024-11-08 17:26:18,689 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 17:26:18,739 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 17:26:18,742 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 17:26:18,744 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 17:26:18,745 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 17:26:18,747 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3582ae43-69f4-4eee-993c-7c386a475c83/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/eca-rers2012/Problem11_label30.c Unable to find full path for "g++" [2024-11-08 17:26:20,733 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 17:26:21,072 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 17:26:21,077 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3582ae43-69f4-4eee-993c-7c386a475c83/sv-benchmarks/c/eca-rers2012/Problem11_label30.c [2024-11-08 17:26:21,099 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3582ae43-69f4-4eee-993c-7c386a475c83/bin/uautomizer-verify-jihMAELWvX/data/a737ce1b2/b8002637ea9e4c308620383894deaaa3/FLAGb6389a982 [2024-11-08 17:26:21,121 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3582ae43-69f4-4eee-993c-7c386a475c83/bin/uautomizer-verify-jihMAELWvX/data/a737ce1b2/b8002637ea9e4c308620383894deaaa3 [2024-11-08 17:26:21,124 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 17:26:21,126 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 17:26:21,129 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 17:26:21,129 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 17:26:21,135 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 17:26:21,136 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:26:21" (1/1) ... [2024-11-08 17:26:21,137 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b752d35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:26:21, skipping insertion in model container [2024-11-08 17:26:21,139 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:26:21" (1/1) ... [2024-11-08 17:26:21,212 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 17:26:21,437 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3582ae43-69f4-4eee-993c-7c386a475c83/sv-benchmarks/c/eca-rers2012/Problem11_label30.c[4279,4292] [2024-11-08 17:26:21,800 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:26:21,811 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 17:26:21,844 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3582ae43-69f4-4eee-993c-7c386a475c83/sv-benchmarks/c/eca-rers2012/Problem11_label30.c[4279,4292] [2024-11-08 17:26:22,004 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:26:22,027 INFO L204 MainTranslator]: Completed translation [2024-11-08 17:26:22,028 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:26:22 WrapperNode [2024-11-08 17:26:22,028 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 17:26:22,029 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 17:26:22,030 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 17:26:22,030 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 17:26:22,037 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:26:22" (1/1) ... [2024-11-08 17:26:22,070 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:26:22" (1/1) ... [2024-11-08 17:26:22,251 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 999 [2024-11-08 17:26:22,252 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 17:26:22,252 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 17:26:22,253 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 17:26:22,253 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 17:26:22,265 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:26:22" (1/1) ... [2024-11-08 17:26:22,265 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:26:22" (1/1) ... [2024-11-08 17:26:22,282 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:26:22" (1/1) ... [2024-11-08 17:26:22,348 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-08 17:26:22,352 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:26:22" (1/1) ... [2024-11-08 17:26:22,352 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:26:22" (1/1) ... [2024-11-08 17:26:22,413 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:26:22" (1/1) ... [2024-11-08 17:26:22,421 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:26:22" (1/1) ... [2024-11-08 17:26:22,434 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:26:22" (1/1) ... [2024-11-08 17:26:22,443 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:26:22" (1/1) ... [2024-11-08 17:26:22,459 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 17:26:22,460 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 17:26:22,460 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 17:26:22,460 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 17:26:22,461 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:26:22" (1/1) ... [2024-11-08 17:26:22,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:26:22,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3582ae43-69f4-4eee-993c-7c386a475c83/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:26:22,491 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3582ae43-69f4-4eee-993c-7c386a475c83/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 17:26:22,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3582ae43-69f4-4eee-993c-7c386a475c83/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 17:26:22,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 17:26:22,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 17:26:22,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 17:26:22,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 17:26:22,609 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 17:26:22,611 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 17:26:24,510 INFO L? ?]: Removed 129 outVars from TransFormulas that were not future-live. [2024-11-08 17:26:24,512 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 17:26:24,541 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 17:26:24,541 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 17:26:24,541 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:26:24 BoogieIcfgContainer [2024-11-08 17:26:24,541 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 17:26:24,544 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 17:26:24,544 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 17:26:24,552 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 17:26:24,553 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:26:21" (1/3) ... [2024-11-08 17:26:24,553 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42a4ba76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:26:24, skipping insertion in model container [2024-11-08 17:26:24,553 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:26:22" (2/3) ... [2024-11-08 17:26:24,554 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42a4ba76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:26:24, skipping insertion in model container [2024-11-08 17:26:24,554 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:26:24" (3/3) ... [2024-11-08 17:26:24,555 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label30.c [2024-11-08 17:26:24,574 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 17:26:24,574 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 17:26:24,656 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:26:24,662 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;@66d704a9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:26:24,662 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 17:26:24,667 INFO L276 IsEmpty]: Start isEmpty. Operand has 283 states, 281 states have (on average 1.7153024911032029) internal successors, (482), 282 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:26:24,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-08 17:26:24,673 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:26:24,674 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:26:24,674 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:26:24,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:26:24,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1598788696, now seen corresponding path program 1 times [2024-11-08 17:26:24,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:26:24,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056356085] [2024-11-08 17:26:24,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:26:24,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:26:24,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:26:25,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:26:25,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:26:25,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056356085] [2024-11-08 17:26:25,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056356085] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:26:25,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:26:25,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:26:25,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292603632] [2024-11-08 17:26:25,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:26:25,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:26:25,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:26:25,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:26:25,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:26:25,084 INFO L87 Difference]: Start difference. First operand has 283 states, 281 states have (on average 1.7153024911032029) internal successors, (482), 282 states have internal predecessors, (482), 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) Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:26:26,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:26:26,494 INFO L93 Difference]: Finished difference Result 776 states and 1363 transitions. [2024-11-08 17:26:26,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:26:26,496 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 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 29 [2024-11-08 17:26:26,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:26:26,507 INFO L225 Difference]: With dead ends: 776 [2024-11-08 17:26:26,507 INFO L226 Difference]: Without dead ends: 413 [2024-11-08 17:26:26,510 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 [2024-11-08 17:26:26,514 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 198 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 632 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-08 17:26:26,515 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 196 Invalid, 763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 632 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-08 17:26:26,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2024-11-08 17:26:26,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 411. [2024-11-08 17:26:26,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 410 states have (on average 1.4585365853658536) internal successors, (598), 410 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:26:26,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 598 transitions. [2024-11-08 17:26:26,593 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 598 transitions. Word has length 29 [2024-11-08 17:26:26,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:26:26,593 INFO L471 AbstractCegarLoop]: Abstraction has 411 states and 598 transitions. [2024-11-08 17:26:26,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:26:26,594 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 598 transitions. [2024-11-08 17:26:26,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-08 17:26:26,596 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:26:26,597 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:26:26,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 17:26:26,597 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:26:26,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:26:26,598 INFO L85 PathProgramCache]: Analyzing trace with hash 544011823, now seen corresponding path program 1 times [2024-11-08 17:26:26,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:26:26,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56282185] [2024-11-08 17:26:26,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:26:26,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:26:26,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:26:26,869 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:26:26,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:26:26,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56282185] [2024-11-08 17:26:26,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56282185] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:26:26,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:26:26,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:26:26,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754930358] [2024-11-08 17:26:26,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:26:26,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:26:26,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:26:26,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:26:26,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:26:26,875 INFO L87 Difference]: Start difference. First operand 411 states and 598 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 2 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:26:27,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:26:27,781 INFO L93 Difference]: Finished difference Result 1209 states and 1765 transitions. [2024-11-08 17:26:27,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:26:27,782 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 2 states have internal predecessors, (97), 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 97 [2024-11-08 17:26:27,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:26:27,786 INFO L225 Difference]: With dead ends: 1209 [2024-11-08 17:26:27,786 INFO L226 Difference]: Without dead ends: 800 [2024-11-08 17:26:27,787 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 [2024-11-08 17:26:27,789 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 144 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 17:26:27,789 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 121 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 17:26:27,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2024-11-08 17:26:27,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 787. [2024-11-08 17:26:27,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 787 states, 786 states have (on average 1.3854961832061068) internal successors, (1089), 786 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:26:27,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 1089 transitions. [2024-11-08 17:26:27,823 INFO L78 Accepts]: Start accepts. Automaton has 787 states and 1089 transitions. Word has length 97 [2024-11-08 17:26:27,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:26:27,823 INFO L471 AbstractCegarLoop]: Abstraction has 787 states and 1089 transitions. [2024-11-08 17:26:27,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 2 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:26:27,824 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 1089 transitions. [2024-11-08 17:26:27,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-08 17:26:27,826 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:26:27,827 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:26:27,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 17:26:27,827 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:26:27,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:26:27,828 INFO L85 PathProgramCache]: Analyzing trace with hash -562058768, now seen corresponding path program 1 times [2024-11-08 17:26:27,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:26:27,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481786976] [2024-11-08 17:26:27,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:26:27,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:26:27,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:26:28,276 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:26:28,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:26:28,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481786976] [2024-11-08 17:26:28,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481786976] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:26:28,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:26:28,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:26:28,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879049679] [2024-11-08 17:26:28,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:26:28,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:26:28,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:26:28,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:26:28,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:26:28,280 INFO L87 Difference]: Start difference. First operand 787 states and 1089 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 2 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:26:29,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:26:29,196 INFO L93 Difference]: Finished difference Result 1942 states and 2631 transitions. [2024-11-08 17:26:29,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:26:29,197 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 2 states have internal predecessors, (98), 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 98 [2024-11-08 17:26:29,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:26:29,202 INFO L225 Difference]: With dead ends: 1942 [2024-11-08 17:26:29,202 INFO L226 Difference]: Without dead ends: 1157 [2024-11-08 17:26:29,203 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 [2024-11-08 17:26:29,204 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 120 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 17:26:29,205 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 190 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 17:26:29,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1157 states. [2024-11-08 17:26:29,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1157 to 1156. [2024-11-08 17:26:29,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1156 states, 1155 states have (on average 1.277922077922078) internal successors, (1476), 1155 states have internal predecessors, (1476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:26:29,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1156 states to 1156 states and 1476 transitions. [2024-11-08 17:26:29,242 INFO L78 Accepts]: Start accepts. Automaton has 1156 states and 1476 transitions. Word has length 98 [2024-11-08 17:26:29,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:26:29,242 INFO L471 AbstractCegarLoop]: Abstraction has 1156 states and 1476 transitions. [2024-11-08 17:26:29,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 2 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:26:29,243 INFO L276 IsEmpty]: Start isEmpty. Operand 1156 states and 1476 transitions. [2024-11-08 17:26:29,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-08 17:26:29,248 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:26:29,248 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:26:29,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 17:26:29,249 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:26:29,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:26:29,250 INFO L85 PathProgramCache]: Analyzing trace with hash -1431867861, now seen corresponding path program 1 times [2024-11-08 17:26:29,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:26:29,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63898864] [2024-11-08 17:26:29,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:26:29,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:26:29,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:26:29,634 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:26:29,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:26:29,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63898864] [2024-11-08 17:26:29,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63898864] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:26:29,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:26:29,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:26:29,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858275037] [2024-11-08 17:26:29,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:26:29,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:26:29,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:26:29,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:26:29,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:26:29,636 INFO L87 Difference]: Start difference. First operand 1156 states and 1476 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:26:30,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:26:30,624 INFO L93 Difference]: Finished difference Result 2691 states and 3515 transitions. [2024-11-08 17:26:30,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:26:30,625 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 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 141 [2024-11-08 17:26:30,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:26:30,631 INFO L225 Difference]: With dead ends: 2691 [2024-11-08 17:26:30,631 INFO L226 Difference]: Without dead ends: 1721 [2024-11-08 17:26:30,633 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:26:30,634 INFO L432 NwaCegarLoop]: 314 mSDtfsCounter, 177 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 17:26:30,635 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 335 Invalid, 647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 548 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 17:26:30,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1721 states. [2024-11-08 17:26:30,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1721 to 1528. [2024-11-08 17:26:30,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1528 states, 1527 states have (on average 1.261296660117878) internal successors, (1926), 1527 states have internal predecessors, (1926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:26:30,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1528 states to 1528 states and 1926 transitions. [2024-11-08 17:26:30,684 INFO L78 Accepts]: Start accepts. Automaton has 1528 states and 1926 transitions. Word has length 141 [2024-11-08 17:26:30,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:26:30,685 INFO L471 AbstractCegarLoop]: Abstraction has 1528 states and 1926 transitions. [2024-11-08 17:26:30,686 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:26:30,686 INFO L276 IsEmpty]: Start isEmpty. Operand 1528 states and 1926 transitions. [2024-11-08 17:26:30,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-08 17:26:30,693 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:26:30,693 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:26:30,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 17:26:30,694 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:26:30,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:26:30,694 INFO L85 PathProgramCache]: Analyzing trace with hash 408952851, now seen corresponding path program 1 times [2024-11-08 17:26:30,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:26:30,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854769827] [2024-11-08 17:26:30,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:26:30,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:26:30,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:26:30,908 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:26:30,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:26:30,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854769827] [2024-11-08 17:26:30,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854769827] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:26:30,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:26:30,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:26:30,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637414615] [2024-11-08 17:26:30,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:26:30,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:26:30,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:26:30,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:26:30,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:26:30,915 INFO L87 Difference]: Start difference. First operand 1528 states and 1926 transitions. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 2 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:26:31,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:26:31,854 INFO L93 Difference]: Finished difference Result 4158 states and 5316 transitions. [2024-11-08 17:26:31,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:26:31,855 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 2 states have internal predecessors, (156), 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 156 [2024-11-08 17:26:31,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:26:31,863 INFO L225 Difference]: With dead ends: 4158 [2024-11-08 17:26:31,864 INFO L226 Difference]: Without dead ends: 2632 [2024-11-08 17:26:31,866 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 [2024-11-08 17:26:31,871 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 115 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 183 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 17:26:31,871 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 155 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [183 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 17:26:31,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2632 states. [2024-11-08 17:26:31,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2632 to 2448. [2024-11-08 17:26:31,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2448 states, 2447 states have (on average 1.2174090723334696) internal successors, (2979), 2447 states have internal predecessors, (2979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:26:31,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2448 states to 2448 states and 2979 transitions. [2024-11-08 17:26:31,950 INFO L78 Accepts]: Start accepts. Automaton has 2448 states and 2979 transitions. Word has length 156 [2024-11-08 17:26:31,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:26:31,951 INFO L471 AbstractCegarLoop]: Abstraction has 2448 states and 2979 transitions. [2024-11-08 17:26:31,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 2 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:26:31,952 INFO L276 IsEmpty]: Start isEmpty. Operand 2448 states and 2979 transitions. [2024-11-08 17:26:31,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-08 17:26:31,956 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:26:31,957 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:26:31,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 17:26:31,957 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:26:31,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:26:31,958 INFO L85 PathProgramCache]: Analyzing trace with hash -219047501, now seen corresponding path program 1 times [2024-11-08 17:26:31,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:26:31,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11657498] [2024-11-08 17:26:31,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:26:31,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:26:32,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:26:32,190 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:26:32,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:26:32,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11657498] [2024-11-08 17:26:32,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11657498] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:26:32,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:26:32,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:26:32,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089301939] [2024-11-08 17:26:32,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:26:32,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:26:32,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:26:32,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:26:32,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:26:32,194 INFO L87 Difference]: Start difference. First operand 2448 states and 2979 transitions. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:26:33,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:26:33,210 INFO L93 Difference]: Finished difference Result 5639 states and 6868 transitions. [2024-11-08 17:26:33,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:26:33,211 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 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 172 [2024-11-08 17:26:33,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:26:33,221 INFO L225 Difference]: With dead ends: 5639 [2024-11-08 17:26:33,221 INFO L226 Difference]: Without dead ends: 3193 [2024-11-08 17:26:33,224 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:26:33,226 INFO L432 NwaCegarLoop]: 338 mSDtfsCounter, 172 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:26:33,226 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 359 Invalid, 613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 546 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-08 17:26:33,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3193 states. [2024-11-08 17:26:33,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3193 to 3184. [2024-11-08 17:26:33,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3184 states, 3183 states have (on average 1.1991831605403707) internal successors, (3817), 3183 states have internal predecessors, (3817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:26:33,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3184 states to 3184 states and 3817 transitions. [2024-11-08 17:26:33,309 INFO L78 Accepts]: Start accepts. Automaton has 3184 states and 3817 transitions. Word has length 172 [2024-11-08 17:26:33,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:26:33,310 INFO L471 AbstractCegarLoop]: Abstraction has 3184 states and 3817 transitions. [2024-11-08 17:26:33,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:26:33,310 INFO L276 IsEmpty]: Start isEmpty. Operand 3184 states and 3817 transitions. [2024-11-08 17:26:33,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-11-08 17:26:33,314 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:26:33,314 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:26:33,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 17:26:33,315 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:26:33,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:26:33,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1159347915, now seen corresponding path program 1 times [2024-11-08 17:26:33,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:26:33,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793315058] [2024-11-08 17:26:33,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:26:33,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:26:33,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:26:33,597 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-08 17:26:33,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:26:33,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793315058] [2024-11-08 17:26:33,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793315058] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:26:33,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:26:33,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:26:33,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515113381] [2024-11-08 17:26:33,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:26:33,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:26:33,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:26:33,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:26:33,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:26:33,600 INFO L87 Difference]: Start difference. First operand 3184 states and 3817 transitions. Second operand has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 2 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:26:34,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:26:34,486 INFO L93 Difference]: Finished difference Result 7108 states and 8504 transitions. [2024-11-08 17:26:34,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:26:34,487 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 2 states have internal predecessors, (185), 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 210 [2024-11-08 17:26:34,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:26:34,500 INFO L225 Difference]: With dead ends: 7108 [2024-11-08 17:26:34,500 INFO L226 Difference]: Without dead ends: 3926 [2024-11-08 17:26:34,503 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 [2024-11-08 17:26:34,504 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 37 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 17:26:34,505 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 154 Invalid, 561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 17:26:34,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3926 states. [2024-11-08 17:26:34,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3926 to 3925. [2024-11-08 17:26:34,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3925 states, 3924 states have (on average 1.193934760448522) internal successors, (4685), 3924 states have internal predecessors, (4685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:26:34,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3925 states to 3925 states and 4685 transitions. [2024-11-08 17:26:34,581 INFO L78 Accepts]: Start accepts. Automaton has 3925 states and 4685 transitions. Word has length 210 [2024-11-08 17:26:34,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:26:34,582 INFO L471 AbstractCegarLoop]: Abstraction has 3925 states and 4685 transitions. [2024-11-08 17:26:34,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 2 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:26:34,582 INFO L276 IsEmpty]: Start isEmpty. Operand 3925 states and 4685 transitions. [2024-11-08 17:26:34,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2024-11-08 17:26:34,585 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:26:34,585 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:26:34,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 17:26:34,586 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:26:34,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:26:34,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1211555561, now seen corresponding path program 1 times [2024-11-08 17:26:34,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:26:34,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357247037] [2024-11-08 17:26:34,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:26:34,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:26:34,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:26:34,896 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-08 17:26:34,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:26:34,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357247037] [2024-11-08 17:26:34,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357247037] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:26:34,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:26:34,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:26:34,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264940677] [2024-11-08 17:26:34,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:26:34,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:26:34,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:26:34,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:26:34,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:26:34,901 INFO L87 Difference]: Start difference. First operand 3925 states and 4685 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:26:35,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:26:35,927 INFO L93 Difference]: Finished difference Result 8591 states and 10347 transitions. [2024-11-08 17:26:35,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:26:35,928 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 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 211 [2024-11-08 17:26:35,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:26:35,942 INFO L225 Difference]: With dead ends: 8591 [2024-11-08 17:26:35,942 INFO L226 Difference]: Without dead ends: 4668 [2024-11-08 17:26:35,946 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:26:35,947 INFO L432 NwaCegarLoop]: 369 mSDtfsCounter, 168 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:26:35,948 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 390 Invalid, 680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 594 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-08 17:26:35,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4668 states. [2024-11-08 17:26:36,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4668 to 4477. [2024-11-08 17:26:36,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4477 states, 4476 states have (on average 1.1861036639857014) internal successors, (5309), 4476 states have internal predecessors, (5309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:26:36,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4477 states to 4477 states and 5309 transitions. [2024-11-08 17:26:36,035 INFO L78 Accepts]: Start accepts. Automaton has 4477 states and 5309 transitions. Word has length 211 [2024-11-08 17:26:36,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:26:36,036 INFO L471 AbstractCegarLoop]: Abstraction has 4477 states and 5309 transitions. [2024-11-08 17:26:36,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:26:36,036 INFO L276 IsEmpty]: Start isEmpty. Operand 4477 states and 5309 transitions. [2024-11-08 17:26:36,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2024-11-08 17:26:36,040 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:26:36,040 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:26:36,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 17:26:36,041 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:26:36,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:26:36,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1515833353, now seen corresponding path program 1 times [2024-11-08 17:26:36,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:26:36,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682054171] [2024-11-08 17:26:36,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:26:36,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:26:36,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:26:36,580 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:26:36,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:26:36,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682054171] [2024-11-08 17:26:36,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682054171] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:26:36,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:26:36,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 17:26:36,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143265414] [2024-11-08 17:26:36,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:26:36,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:26:36,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:26:36,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:26:36,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:26:36,584 INFO L87 Difference]: Start difference. First operand 4477 states and 5309 transitions. Second operand has 4 states, 4 states have (on average 57.75) internal successors, (231), 4 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:26:38,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:26:38,336 INFO L93 Difference]: Finished difference Result 14321 states and 17014 transitions. [2024-11-08 17:26:38,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:26:38,337 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 57.75) internal successors, (231), 4 states have internal predecessors, (231), 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 231 [2024-11-08 17:26:38,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:26:38,364 INFO L225 Difference]: With dead ends: 14321 [2024-11-08 17:26:38,365 INFO L226 Difference]: Without dead ends: 9846 [2024-11-08 17:26:38,371 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:26:38,372 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 309 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 1072 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 1200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 1072 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-08 17:26:38,372 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 191 Invalid, 1200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 1072 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-08 17:26:38,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9846 states. [2024-11-08 17:26:38,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9846 to 7627. [2024-11-08 17:26:38,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7627 states, 7626 states have (on average 1.1702071859428271) internal successors, (8924), 7626 states have internal predecessors, (8924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:26:38,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7627 states to 7627 states and 8924 transitions. [2024-11-08 17:26:38,519 INFO L78 Accepts]: Start accepts. Automaton has 7627 states and 8924 transitions. Word has length 231 [2024-11-08 17:26:38,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:26:38,520 INFO L471 AbstractCegarLoop]: Abstraction has 7627 states and 8924 transitions. [2024-11-08 17:26:38,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.75) internal successors, (231), 4 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:26:38,520 INFO L276 IsEmpty]: Start isEmpty. Operand 7627 states and 8924 transitions. [2024-11-08 17:26:38,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2024-11-08 17:26:38,524 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:26:38,524 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:26:38,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 17:26:38,525 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:26:38,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:26:38,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1621617666, now seen corresponding path program 1 times [2024-11-08 17:26:38,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:26:38,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953767357] [2024-11-08 17:26:38,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:26:38,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:26:38,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:26:39,038 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:26:39,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:26:39,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953767357] [2024-11-08 17:26:39,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953767357] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:26:39,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:26:39,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 17:26:39,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130544989] [2024-11-08 17:26:39,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:26:39,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:26:39,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:26:39,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:26:39,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:26:39,045 INFO L87 Difference]: Start difference. First operand 7627 states and 8924 transitions. Second operand has 4 states, 4 states have (on average 60.25) internal successors, (241), 4 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:26:40,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:26:40,752 INFO L93 Difference]: Finished difference Result 20234 states and 23746 transitions. [2024-11-08 17:26:40,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:26:40,753 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 60.25) internal successors, (241), 4 states have internal predecessors, (241), 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 241 [2024-11-08 17:26:40,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:26:40,774 INFO L225 Difference]: With dead ends: 20234 [2024-11-08 17:26:40,775 INFO L226 Difference]: Without dead ends: 12609 [2024-11-08 17:26:40,782 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:26:40,783 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 323 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 1135 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 1337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 1135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-08 17:26:40,783 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [323 Valid, 113 Invalid, 1337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 1135 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-08 17:26:40,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12609 states. [2024-11-08 17:26:40,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12609 to 10202. [2024-11-08 17:26:40,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10202 states, 10201 states have (on average 1.1734143711400844) internal successors, (11970), 10201 states have internal predecessors, (11970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:26:40,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10202 states to 10202 states and 11970 transitions. [2024-11-08 17:26:40,963 INFO L78 Accepts]: Start accepts. Automaton has 10202 states and 11970 transitions. Word has length 241 [2024-11-08 17:26:40,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:26:40,964 INFO L471 AbstractCegarLoop]: Abstraction has 10202 states and 11970 transitions. [2024-11-08 17:26:40,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.25) internal successors, (241), 4 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:26:40,964 INFO L276 IsEmpty]: Start isEmpty. Operand 10202 states and 11970 transitions. [2024-11-08 17:26:40,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2024-11-08 17:26:40,968 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:26:40,969 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:26:40,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 17:26:40,969 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:26:40,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:26:40,970 INFO L85 PathProgramCache]: Analyzing trace with hash -299668725, now seen corresponding path program 1 times [2024-11-08 17:26:40,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:26:40,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329606329] [2024-11-08 17:26:40,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:26:40,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:26:41,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:26:41,253 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:26:41,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:26:41,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329606329] [2024-11-08 17:26:41,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329606329] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:26:41,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:26:41,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:26:41,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417152935] [2024-11-08 17:26:41,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:26:41,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:26:41,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:26:41,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:26:41,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:26:41,256 INFO L87 Difference]: Start difference. First operand 10202 states and 11970 transitions. Second operand has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:26:42,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:26:42,155 INFO L93 Difference]: Finished difference Result 20399 states and 23935 transitions. [2024-11-08 17:26:42,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:26:42,156 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 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 241 [2024-11-08 17:26:42,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:26:42,172 INFO L225 Difference]: With dead ends: 20399 [2024-11-08 17:26:42,172 INFO L226 Difference]: Without dead ends: 10199 [2024-11-08 17:26:42,181 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:26:42,182 INFO L432 NwaCegarLoop]: 285 mSDtfsCounter, 148 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 17:26:42,183 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 305 Invalid, 603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 552 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 17:26:42,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10199 states. [2024-11-08 17:26:42,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10199 to 10199. [2024-11-08 17:26:42,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10199 states, 10198 states have (on average 1.1445381447342615) internal successors, (11672), 10198 states have internal predecessors, (11672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:26:42,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10199 states to 10199 states and 11672 transitions. [2024-11-08 17:26:42,406 INFO L78 Accepts]: Start accepts. Automaton has 10199 states and 11672 transitions. Word has length 241 [2024-11-08 17:26:42,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:26:42,407 INFO L471 AbstractCegarLoop]: Abstraction has 10199 states and 11672 transitions. [2024-11-08 17:26:42,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:26:42,408 INFO L276 IsEmpty]: Start isEmpty. Operand 10199 states and 11672 transitions. [2024-11-08 17:26:42,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2024-11-08 17:26:42,414 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:26:42,414 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:26:42,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 17:26:42,415 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:26:42,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:26:42,415 INFO L85 PathProgramCache]: Analyzing trace with hash -602182320, now seen corresponding path program 1 times [2024-11-08 17:26:42,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:26:42,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875876245] [2024-11-08 17:26:42,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:26:42,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:26:42,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:26:42,658 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2024-11-08 17:26:42,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:26:42,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875876245] [2024-11-08 17:26:42,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875876245] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:26:42,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:26:42,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:26:42,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891263406] [2024-11-08 17:26:42,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:26:42,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:26:42,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:26:42,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:26:42,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:26:42,660 INFO L87 Difference]: Start difference. First operand 10199 states and 11672 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:26:43,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:26:43,678 INFO L93 Difference]: Finished difference Result 22787 states and 26113 transitions. [2024-11-08 17:26:43,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:26:43,679 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 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 243 [2024-11-08 17:26:43,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:26:43,700 INFO L225 Difference]: With dead ends: 22787 [2024-11-08 17:26:43,701 INFO L226 Difference]: Without dead ends: 12590 [2024-11-08 17:26:43,710 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:26:43,711 INFO L432 NwaCegarLoop]: 347 mSDtfsCounter, 169 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 17:26:43,711 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 370 Invalid, 675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 587 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 17:26:43,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12590 states. [2024-11-08 17:26:43,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12590 to 11114. [2024-11-08 17:26:43,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11114 states, 11113 states have (on average 1.1383064878970575) internal successors, (12650), 11113 states have internal predecessors, (12650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:26:43,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11114 states to 11114 states and 12650 transitions. [2024-11-08 17:26:43,949 INFO L78 Accepts]: Start accepts. Automaton has 11114 states and 12650 transitions. Word has length 243 [2024-11-08 17:26:43,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:26:43,950 INFO L471 AbstractCegarLoop]: Abstraction has 11114 states and 12650 transitions. [2024-11-08 17:26:43,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:26:43,950 INFO L276 IsEmpty]: Start isEmpty. Operand 11114 states and 12650 transitions. [2024-11-08 17:26:43,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2024-11-08 17:26:43,955 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:26:43,955 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:26:43,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 17:26:43,955 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:26:43,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:26:43,957 INFO L85 PathProgramCache]: Analyzing trace with hash -703580966, now seen corresponding path program 1 times [2024-11-08 17:26:43,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:26:43,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451612607] [2024-11-08 17:26:43,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:26:43,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:26:44,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:26:44,238 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-08 17:26:44,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:26:44,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451612607] [2024-11-08 17:26:44,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451612607] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:26:44,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:26:44,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:26:44,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642649638] [2024-11-08 17:26:44,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:26:44,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:26:44,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:26:44,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:26:44,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:26:44,241 INFO L87 Difference]: Start difference. First operand 11114 states and 12650 transitions. Second operand has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:26:45,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:26:45,318 INFO L93 Difference]: Finished difference Result 22413 states and 25494 transitions. [2024-11-08 17:26:45,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:26:45,318 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 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 248 [2024-11-08 17:26:45,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:26:45,334 INFO L225 Difference]: With dead ends: 22413 [2024-11-08 17:26:45,335 INFO L226 Difference]: Without dead ends: 11301 [2024-11-08 17:26:45,343 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:26:45,343 INFO L432 NwaCegarLoop]: 351 mSDtfsCounter, 171 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 575 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:26:45,344 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 373 Invalid, 661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 575 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-08 17:26:45,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11301 states. [2024-11-08 17:26:45,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11301 to 11113. [2024-11-08 17:26:45,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11113 states, 11112 states have (on average 1.1175305975521959) internal successors, (12418), 11112 states have internal predecessors, (12418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:26:45,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11113 states to 11113 states and 12418 transitions. [2024-11-08 17:26:45,476 INFO L78 Accepts]: Start accepts. Automaton has 11113 states and 12418 transitions. Word has length 248 [2024-11-08 17:26:45,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:26:45,477 INFO L471 AbstractCegarLoop]: Abstraction has 11113 states and 12418 transitions. [2024-11-08 17:26:45,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:26:45,477 INFO L276 IsEmpty]: Start isEmpty. Operand 11113 states and 12418 transitions. [2024-11-08 17:26:45,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2024-11-08 17:26:45,482 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:26:45,483 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:26:45,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 17:26:45,483 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:26:45,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:26:45,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1783309935, now seen corresponding path program 1 times [2024-11-08 17:26:45,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:26:45,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958690899] [2024-11-08 17:26:45,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:26:45,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:26:45,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:26:46,279 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 109 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:26:46,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:26:46,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958690899] [2024-11-08 17:26:46,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958690899] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:26:46,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [377977639] [2024-11-08 17:26:46,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:26:46,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:26:46,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3582ae43-69f4-4eee-993c-7c386a475c83/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:26:46,282 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3582ae43-69f4-4eee-993c-7c386a475c83/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:26:46,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3582ae43-69f4-4eee-993c-7c386a475c83/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 17:26:46,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:26:46,472 INFO L255 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 17:26:46,484 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:26:47,210 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:26:47,211 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:26:47,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [377977639] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:26:47,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 17:26:47,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-08 17:26:47,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158749701] [2024-11-08 17:26:47,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:26:47,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:26:47,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:26:47,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:26:47,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:26:47,218 INFO L87 Difference]: Start difference. First operand 11113 states and 12418 transitions. Second operand has 4 states, 4 states have (on average 65.5) internal successors, (262), 3 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:26:48,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:26:48,413 INFO L93 Difference]: Finished difference Result 22227 states and 24838 transitions. [2024-11-08 17:26:48,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:26:48,413 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 65.5) internal successors, (262), 3 states have internal predecessors, (262), 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 262 [2024-11-08 17:26:48,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:26:48,429 INFO L225 Difference]: With dead ends: 22227 [2024-11-08 17:26:48,429 INFO L226 Difference]: Without dead ends: 11116 [2024-11-08 17:26:48,440 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:26:48,440 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 171 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 1037 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 1078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1037 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:26:48,441 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 170 Invalid, 1078 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1037 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-08 17:26:48,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11116 states. [2024-11-08 17:26:48,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11116 to 11113. [2024-11-08 17:26:48,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11113 states, 11112 states have (on average 1.1164506839452844) internal successors, (12406), 11112 states have internal predecessors, (12406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:26:48,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11113 states to 11113 states and 12406 transitions. [2024-11-08 17:26:48,599 INFO L78 Accepts]: Start accepts. Automaton has 11113 states and 12406 transitions. Word has length 262 [2024-11-08 17:26:48,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:26:48,600 INFO L471 AbstractCegarLoop]: Abstraction has 11113 states and 12406 transitions. [2024-11-08 17:26:48,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 65.5) internal successors, (262), 3 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:26:48,600 INFO L276 IsEmpty]: Start isEmpty. Operand 11113 states and 12406 transitions. [2024-11-08 17:26:48,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2024-11-08 17:26:48,608 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:26:48,608 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:26:48,629 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3582ae43-69f4-4eee-993c-7c386a475c83/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 17:26:48,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3582ae43-69f4-4eee-993c-7c386a475c83/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:26:48,809 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:26:48,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:26:48,810 INFO L85 PathProgramCache]: Analyzing trace with hash 756760585, now seen corresponding path program 1 times [2024-11-08 17:26:48,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:26:48,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484403793] [2024-11-08 17:26:48,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:26:48,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:26:48,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:26:49,069 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2024-11-08 17:26:49,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:26:49,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484403793] [2024-11-08 17:26:49,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484403793] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:26:49,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:26:49,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:26:49,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828489082] [2024-11-08 17:26:49,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:26:49,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:26:49,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:26:49,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:26:49,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:26:49,074 INFO L87 Difference]: Start difference. First operand 11113 states and 12406 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:26:49,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:26:49,965 INFO L93 Difference]: Finished difference Result 24615 states and 27485 transitions. [2024-11-08 17:26:49,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:26:49,965 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 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 296 [2024-11-08 17:26:49,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:26:49,977 INFO L225 Difference]: With dead ends: 24615 [2024-11-08 17:26:49,977 INFO L226 Difference]: Without dead ends: 13504 [2024-11-08 17:26:49,985 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:26:49,986 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 192 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 17:26:49,986 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 144 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 17:26:49,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13504 states. [2024-11-08 17:26:50,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13504 to 11108. [2024-11-08 17:26:50,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11108 states, 11107 states have (on average 1.1173134059602052) internal successors, (12410), 11107 states have internal predecessors, (12410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:26:50,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11108 states to 11108 states and 12410 transitions. [2024-11-08 17:26:50,135 INFO L78 Accepts]: Start accepts. Automaton has 11108 states and 12410 transitions. Word has length 296 [2024-11-08 17:26:50,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:26:50,136 INFO L471 AbstractCegarLoop]: Abstraction has 11108 states and 12410 transitions. [2024-11-08 17:26:50,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:26:50,136 INFO L276 IsEmpty]: Start isEmpty. Operand 11108 states and 12410 transitions. [2024-11-08 17:26:50,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2024-11-08 17:26:50,141 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:26:50,141 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:26:50,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 17:26:50,142 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:26:50,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:26:50,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1310727339, now seen corresponding path program 1 times [2024-11-08 17:26:50,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:26:50,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918210463] [2024-11-08 17:26:50,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:26:50,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:26:50,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:26:50,777 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 238 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2024-11-08 17:26:50,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:26:50,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918210463] [2024-11-08 17:26:50,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918210463] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:26:50,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:26:50,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 17:26:50,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053180878] [2024-11-08 17:26:50,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:26:50,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:26:50,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:26:50,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:26:50,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:26:50,779 INFO L87 Difference]: Start difference. First operand 11108 states and 12410 transitions. Second operand has 4 states, 4 states have (on average 58.25) internal successors, (233), 4 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:26:52,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:26:52,169 INFO L93 Difference]: Finished difference Result 27772 states and 31008 transitions. [2024-11-08 17:26:52,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:26:52,170 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 58.25) internal successors, (233), 4 states have internal predecessors, (233), 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 300 [2024-11-08 17:26:52,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:26:52,181 INFO L225 Difference]: With dead ends: 27772 [2024-11-08 17:26:52,181 INFO L226 Difference]: Without dead ends: 15925 [2024-11-08 17:26:52,187 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:26:52,187 INFO L432 NwaCegarLoop]: 358 mSDtfsCounter, 311 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 1140 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 1218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 1140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-08 17:26:52,188 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 399 Invalid, 1218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 1140 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-08 17:26:52,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15925 states. [2024-11-08 17:26:52,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15925 to 12597. [2024-11-08 17:26:52,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12597 states, 12596 states have (on average 1.11765639885678) internal successors, (14078), 12596 states have internal predecessors, (14078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:26:52,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12597 states to 12597 states and 14078 transitions. [2024-11-08 17:26:52,368 INFO L78 Accepts]: Start accepts. Automaton has 12597 states and 14078 transitions. Word has length 300 [2024-11-08 17:26:52,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:26:52,369 INFO L471 AbstractCegarLoop]: Abstraction has 12597 states and 14078 transitions. [2024-11-08 17:26:52,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.25) internal successors, (233), 4 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:26:52,369 INFO L276 IsEmpty]: Start isEmpty. Operand 12597 states and 14078 transitions. [2024-11-08 17:26:52,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2024-11-08 17:26:52,375 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:26:52,376 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:26:52,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 17:26:52,376 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:26:52,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:26:52,377 INFO L85 PathProgramCache]: Analyzing trace with hash -225908525, now seen corresponding path program 1 times [2024-11-08 17:26:52,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:26:52,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255938038] [2024-11-08 17:26:52,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:26:52,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:26:52,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:26:53,570 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 174 proven. 80 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-08 17:26:53,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:26:53,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255938038] [2024-11-08 17:26:53,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255938038] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:26:53,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1986022598] [2024-11-08 17:26:53,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:26:53,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:26:53,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3582ae43-69f4-4eee-993c-7c386a475c83/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:26:53,574 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3582ae43-69f4-4eee-993c-7c386a475c83/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:26:53,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3582ae43-69f4-4eee-993c-7c386a475c83/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 17:26:53,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:26:53,780 INFO L255 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 17:26:53,789 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:26:54,399 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 254 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-08 17:26:54,399 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:26:54,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1986022598] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:26:54,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 17:26:54,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-08 17:26:54,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099979102] [2024-11-08 17:26:54,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:26:54,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:26:54,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:26:54,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:26:54,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-08 17:26:54,401 INFO L87 Difference]: Start difference. First operand 12597 states and 14078 transitions. Second operand has 4 states, 4 states have (on average 58.25) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:26:55,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:26:55,366 INFO L93 Difference]: Finished difference Result 25378 states and 28346 transitions. [2024-11-08 17:26:55,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:26:55,366 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 58.25) internal successors, (233), 3 states have internal predecessors, (233), 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 316 [2024-11-08 17:26:55,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:26:55,380 INFO L225 Difference]: With dead ends: 25378 [2024-11-08 17:26:55,380 INFO L226 Difference]: Without dead ends: 12783 [2024-11-08 17:26:55,388 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 314 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-08 17:26:55,388 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 293 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 733 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 733 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 17:26:55,389 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [293 Valid, 150 Invalid, 798 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 733 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 17:26:55,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12783 states. [2024-11-08 17:26:55,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12783 to 12597. [2024-11-08 17:26:55,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12597 states, 12596 states have (on average 1.116703715465227) internal successors, (14066), 12596 states have internal predecessors, (14066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:26:55,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12597 states to 12597 states and 14066 transitions. [2024-11-08 17:26:55,547 INFO L78 Accepts]: Start accepts. Automaton has 12597 states and 14066 transitions. Word has length 316 [2024-11-08 17:26:55,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:26:55,548 INFO L471 AbstractCegarLoop]: Abstraction has 12597 states and 14066 transitions. [2024-11-08 17:26:55,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.25) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:26:55,548 INFO L276 IsEmpty]: Start isEmpty. Operand 12597 states and 14066 transitions. [2024-11-08 17:26:55,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2024-11-08 17:26:55,555 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:26:55,555 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:26:55,576 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3582ae43-69f4-4eee-993c-7c386a475c83/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-08 17:26:55,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3582ae43-69f4-4eee-993c-7c386a475c83/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-08 17:26:55,756 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:26:55,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:26:55,757 INFO L85 PathProgramCache]: Analyzing trace with hash -833963593, now seen corresponding path program 1 times [2024-11-08 17:26:55,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:26:55,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214422991] [2024-11-08 17:26:55,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:26:55,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:26:55,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:26:56,197 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-08 17:26:56,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:26:56,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214422991] [2024-11-08 17:26:56,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214422991] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:26:56,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:26:56,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:26:56,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385742738] [2024-11-08 17:26:56,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:26:56,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:26:56,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:26:56,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:26:56,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:26:56,199 INFO L87 Difference]: Start difference. First operand 12597 states and 14066 transitions. Second operand has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:26:57,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:26:57,126 INFO L93 Difference]: Finished difference Result 27596 states and 30780 transitions. [2024-11-08 17:26:57,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:26:57,127 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 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 327 [2024-11-08 17:26:57,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:26:57,138 INFO L225 Difference]: With dead ends: 27596 [2024-11-08 17:26:57,138 INFO L226 Difference]: Without dead ends: 15001 [2024-11-08 17:26:57,145 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:26:57,146 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 193 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 17:26:57,146 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 135 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 566 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 17:26:57,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15001 states. [2024-11-08 17:26:57,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15001 to 11481. [2024-11-08 17:26:57,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11481 states, 11480 states have (on average 1.1169860627177701) internal successors, (12823), 11480 states have internal predecessors, (12823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:26:57,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11481 states to 11481 states and 12823 transitions. [2024-11-08 17:26:57,296 INFO L78 Accepts]: Start accepts. Automaton has 11481 states and 12823 transitions. Word has length 327 [2024-11-08 17:26:57,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:26:57,296 INFO L471 AbstractCegarLoop]: Abstraction has 11481 states and 12823 transitions. [2024-11-08 17:26:57,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:26:57,297 INFO L276 IsEmpty]: Start isEmpty. Operand 11481 states and 12823 transitions. [2024-11-08 17:26:57,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2024-11-08 17:26:57,303 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:26:57,304 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:26:57,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 17:26:57,304 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:26:57,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:26:57,305 INFO L85 PathProgramCache]: Analyzing trace with hash -1332049416, now seen corresponding path program 1 times [2024-11-08 17:26:57,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:26:57,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867044525] [2024-11-08 17:26:57,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:26:57,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:26:57,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:26:57,983 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 259 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-08 17:26:57,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:26:57,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867044525] [2024-11-08 17:26:57,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867044525] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:26:57,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:26:57,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 17:26:57,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74881580] [2024-11-08 17:26:57,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:26:57,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:26:57,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:26:57,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:26:57,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:26:57,985 INFO L87 Difference]: Start difference. First operand 11481 states and 12823 transitions. Second operand has 4 states, 4 states have (on average 60.75) internal successors, (243), 4 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:26:59,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:26:59,389 INFO L93 Difference]: Finished difference Result 27206 states and 30325 transitions. [2024-11-08 17:26:59,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:26:59,390 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 60.75) internal successors, (243), 4 states have internal predecessors, (243), 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 338 [2024-11-08 17:26:59,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:26:59,406 INFO L225 Difference]: With dead ends: 27206 [2024-11-08 17:26:59,406 INFO L226 Difference]: Without dead ends: 15172 [2024-11-08 17:26:59,415 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:26:59,415 INFO L432 NwaCegarLoop]: 319 mSDtfsCounter, 306 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 1412 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 1507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 1412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-08 17:26:59,416 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 367 Invalid, 1507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 1412 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-08 17:26:59,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15172 states. [2024-11-08 17:26:59,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15172 to 10360. [2024-11-08 17:26:59,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10360 states, 10359 states have (on average 1.1105319046239985) internal successors, (11504), 10359 states have internal predecessors, (11504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:26:59,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10360 states to 10360 states and 11504 transitions. [2024-11-08 17:26:59,552 INFO L78 Accepts]: Start accepts. Automaton has 10360 states and 11504 transitions. Word has length 338 [2024-11-08 17:26:59,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:26:59,552 INFO L471 AbstractCegarLoop]: Abstraction has 10360 states and 11504 transitions. [2024-11-08 17:26:59,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.75) internal successors, (243), 4 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:26:59,553 INFO L276 IsEmpty]: Start isEmpty. Operand 10360 states and 11504 transitions. [2024-11-08 17:26:59,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2024-11-08 17:26:59,568 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:26:59,568 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:26:59,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-08 17:26:59,568 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:26:59,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:26:59,569 INFO L85 PathProgramCache]: Analyzing trace with hash 2019309947, now seen corresponding path program 1 times [2024-11-08 17:26:59,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:26:59,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837758357] [2024-11-08 17:26:59,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:26:59,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:26:59,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:27:00,130 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 259 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-11-08 17:27:00,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:27:00,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837758357] [2024-11-08 17:27:00,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837758357] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:27:00,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:27:00,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 17:27:00,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582887374] [2024-11-08 17:27:00,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:27:00,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:27:00,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:27:00,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:27:00,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:27:00,134 INFO L87 Difference]: Start difference. First operand 10360 states and 11504 transitions. Second operand has 4 states, 4 states have (on average 62.0) internal successors, (248), 4 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:27:01,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:27:01,139 INFO L93 Difference]: Finished difference Result 22193 states and 24552 transitions. [2024-11-08 17:27:01,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:27:01,140 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 62.0) internal successors, (248), 4 states have internal predecessors, (248), 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 351 [2024-11-08 17:27:01,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:27:01,151 INFO L225 Difference]: With dead ends: 22193 [2024-11-08 17:27:01,151 INFO L226 Difference]: Without dead ends: 11835 [2024-11-08 17:27:01,156 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:27:01,157 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 328 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 875 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 1012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 875 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 17:27:01,157 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [328 Valid, 57 Invalid, 1012 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 875 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 17:27:01,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11835 states. [2024-11-08 17:27:01,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11835 to 9619. [2024-11-08 17:27:01,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9619 states, 9618 states have (on average 1.1072988147223954) internal successors, (10650), 9618 states have internal predecessors, (10650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:27:01,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9619 states to 9619 states and 10650 transitions. [2024-11-08 17:27:01,269 INFO L78 Accepts]: Start accepts. Automaton has 9619 states and 10650 transitions. Word has length 351 [2024-11-08 17:27:01,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:27:01,270 INFO L471 AbstractCegarLoop]: Abstraction has 9619 states and 10650 transitions. [2024-11-08 17:27:01,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.0) internal successors, (248), 4 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:27:01,270 INFO L276 IsEmpty]: Start isEmpty. Operand 9619 states and 10650 transitions. [2024-11-08 17:27:01,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2024-11-08 17:27:01,278 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:27:01,279 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:27:01,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-08 17:27:01,279 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:27:01,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:27:01,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1420194107, now seen corresponding path program 1 times [2024-11-08 17:27:01,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:27:01,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742017703] [2024-11-08 17:27:01,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:27:01,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:27:01,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:27:01,706 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 368 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-08 17:27:01,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:27:01,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742017703] [2024-11-08 17:27:01,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742017703] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:27:01,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:27:01,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:27:01,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071515568] [2024-11-08 17:27:01,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:27:01,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:27:01,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:27:01,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:27:01,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:27:01,710 INFO L87 Difference]: Start difference. First operand 9619 states and 10650 transitions. Second operand has 4 states, 4 states have (on average 90.0) internal successors, (360), 3 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:27:02,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:27:02,961 INFO L93 Difference]: Finished difference Result 26249 states and 29041 transitions. [2024-11-08 17:27:02,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:27:02,962 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 90.0) internal successors, (360), 3 states have internal predecessors, (360), 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 386 [2024-11-08 17:27:02,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:27:02,979 INFO L225 Difference]: With dead ends: 26249 [2024-11-08 17:27:02,979 INFO L226 Difference]: Without dead ends: 16632 [2024-11-08 17:27:02,986 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:27:02,987 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 220 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 1021 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 1136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 1021 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:27:02,987 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 64 Invalid, 1136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 1021 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-08 17:27:02,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16632 states. [2024-11-08 17:27:03,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16632 to 15333. [2024-11-08 17:27:03,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15333 states, 15332 states have (on average 1.1049439081659276) internal successors, (16941), 15332 states have internal predecessors, (16941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:27:03,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15333 states to 15333 states and 16941 transitions. [2024-11-08 17:27:03,133 INFO L78 Accepts]: Start accepts. Automaton has 15333 states and 16941 transitions. Word has length 386 [2024-11-08 17:27:03,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:27:03,134 INFO L471 AbstractCegarLoop]: Abstraction has 15333 states and 16941 transitions. [2024-11-08 17:27:03,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 90.0) internal successors, (360), 3 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:27:03,134 INFO L276 IsEmpty]: Start isEmpty. Operand 15333 states and 16941 transitions. [2024-11-08 17:27:03,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 532 [2024-11-08 17:27:03,151 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:27:03,152 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:27:03,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-08 17:27:03,152 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:27:03,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:27:03,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1665177731, now seen corresponding path program 1 times [2024-11-08 17:27:03,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:27:03,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238063627] [2024-11-08 17:27:03,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:27:03,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:27:03,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:27:03,638 INFO L134 CoverageAnalysis]: Checked inductivity of 782 backedges. 627 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2024-11-08 17:27:03,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:27:03,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238063627] [2024-11-08 17:27:03,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238063627] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:27:03,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:27:03,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:27:03,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883916275] [2024-11-08 17:27:03,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:27:03,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:27:03,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:27:03,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:27:03,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:27:03,641 INFO L87 Difference]: Start difference. First operand 15333 states and 16941 transitions. Second operand has 4 states, 4 states have (on average 94.5) internal successors, (378), 3 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:27:04,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:27:04,854 INFO L93 Difference]: Finished difference Result 29567 states and 32664 transitions. [2024-11-08 17:27:04,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:27:04,856 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 94.5) internal successors, (378), 3 states have internal predecessors, (378), 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 531 [2024-11-08 17:27:04,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:27:04,881 INFO L225 Difference]: With dead ends: 29567 [2024-11-08 17:27:04,885 INFO L226 Difference]: Without dead ends: 16632 [2024-11-08 17:27:04,893 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:27:04,894 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 175 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 1076 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 1156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 1076 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:27:04,894 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 71 Invalid, 1156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 1076 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-08 17:27:04,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16632 states. [2024-11-08 17:27:05,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16632 to 15149. [2024-11-08 17:27:05,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15149 states, 15148 states have (on average 1.1043041985740691) internal successors, (16728), 15148 states have internal predecessors, (16728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:27:05,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15149 states to 15149 states and 16728 transitions. [2024-11-08 17:27:05,084 INFO L78 Accepts]: Start accepts. Automaton has 15149 states and 16728 transitions. Word has length 531 [2024-11-08 17:27:05,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:27:05,084 INFO L471 AbstractCegarLoop]: Abstraction has 15149 states and 16728 transitions. [2024-11-08 17:27:05,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 94.5) internal successors, (378), 3 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:27:05,085 INFO L276 IsEmpty]: Start isEmpty. Operand 15149 states and 16728 transitions. [2024-11-08 17:27:05,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 546 [2024-11-08 17:27:05,103 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:27:05,104 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:27:05,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-08 17:27:05,104 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:27:05,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:27:05,105 INFO L85 PathProgramCache]: Analyzing trace with hash -481357369, now seen corresponding path program 1 times [2024-11-08 17:27:05,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:27:05,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147143884] [2024-11-08 17:27:05,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:27:05,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:27:05,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:27:05,669 INFO L134 CoverageAnalysis]: Checked inductivity of 999 backedges. 484 proven. 0 refuted. 0 times theorem prover too weak. 515 trivial. 0 not checked. [2024-11-08 17:27:05,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:27:05,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147143884] [2024-11-08 17:27:05,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147143884] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:27:05,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:27:05,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:27:05,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69415179] [2024-11-08 17:27:05,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:27:05,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:27:05,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:27:05,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:27:05,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:27:05,674 INFO L87 Difference]: Start difference. First operand 15149 states and 16728 transitions. Second operand has 3 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:27:06,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:27:06,533 INFO L93 Difference]: Finished difference Result 28100 states and 31045 transitions. [2024-11-08 17:27:06,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:27:06,533 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 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 545 [2024-11-08 17:27:06,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:27:06,548 INFO L225 Difference]: With dead ends: 28100 [2024-11-08 17:27:06,549 INFO L226 Difference]: Without dead ends: 15165 [2024-11-08 17:27:06,554 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:27:06,555 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 102 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 17:27:06,555 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 160 Invalid, 595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 555 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 17:27:06,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15165 states. [2024-11-08 17:27:06,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15165 to 14781. [2024-11-08 17:27:06,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14781 states, 14780 states have (on average 1.097361299052774) internal successors, (16219), 14780 states have internal predecessors, (16219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:27:06,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14781 states to 14781 states and 16219 transitions. [2024-11-08 17:27:06,703 INFO L78 Accepts]: Start accepts. Automaton has 14781 states and 16219 transitions. Word has length 545 [2024-11-08 17:27:06,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:27:06,703 INFO L471 AbstractCegarLoop]: Abstraction has 14781 states and 16219 transitions. [2024-11-08 17:27:06,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:27:06,704 INFO L276 IsEmpty]: Start isEmpty. Operand 14781 states and 16219 transitions. [2024-11-08 17:27:06,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 547 [2024-11-08 17:27:06,715 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:27:06,715 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:27:06,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-08 17:27:06,715 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:27:06,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:27:06,716 INFO L85 PathProgramCache]: Analyzing trace with hash -2093748381, now seen corresponding path program 1 times [2024-11-08 17:27:06,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:27:06,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742585982] [2024-11-08 17:27:06,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:27:06,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:27:06,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:27:07,000 INFO L134 CoverageAnalysis]: Checked inductivity of 999 backedges. 484 proven. 0 refuted. 0 times theorem prover too weak. 515 trivial. 0 not checked. [2024-11-08 17:27:07,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:27:07,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742585982] [2024-11-08 17:27:07,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742585982] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:27:07,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:27:07,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:27:07,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967111763] [2024-11-08 17:27:07,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:27:07,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:27:07,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:27:07,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:27:07,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:27:07,004 INFO L87 Difference]: Start difference. First operand 14781 states and 16219 transitions. Second operand has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:27:07,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:27:07,787 INFO L93 Difference]: Finished difference Result 30660 states and 33607 transitions. [2024-11-08 17:27:07,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:27:07,788 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 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 546 [2024-11-08 17:27:07,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:27:07,790 INFO L225 Difference]: With dead ends: 30660 [2024-11-08 17:27:07,790 INFO L226 Difference]: Without dead ends: 0 [2024-11-08 17:27:07,798 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:27:07,798 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 101 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 17:27:07,798 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 127 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 519 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 17:27:07,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-08 17:27:07,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-08 17:27:07,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:27:07,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-08 17:27:07,800 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 546 [2024-11-08 17:27:07,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:27:07,800 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-08 17:27:07,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:27:07,801 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-08 17:27:07,801 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-08 17:27:07,803 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 17:27:07,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-08 17:27:07,808 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:27:07,810 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-08 17:27:19,018 WARN L286 SmtUtils]: Spent 11.20s on a formula simplification. DAG size of input: 493 DAG size of output: 609 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-08 17:27:22,004 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 17:27:22,042 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 05:27:22 BoogieIcfgContainer [2024-11-08 17:27:22,042 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 17:27:22,043 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 17:27:22,043 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 17:27:22,043 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 17:27:22,043 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:26:24" (3/4) ... [2024-11-08 17:27:22,052 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-08 17:27:22,080 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-08 17:27:22,081 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-08 17:27:22,086 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-08 17:27:22,087 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 17:27:22,314 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3582ae43-69f4-4eee-993c-7c386a475c83/bin/uautomizer-verify-jihMAELWvX/witness.graphml [2024-11-08 17:27:22,314 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3582ae43-69f4-4eee-993c-7c386a475c83/bin/uautomizer-verify-jihMAELWvX/witness.yml [2024-11-08 17:27:22,314 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 17:27:22,315 INFO L158 Benchmark]: Toolchain (without parser) took 61189.20ms. Allocated memory was 153.1MB in the beginning and 1.1GB in the end (delta: 958.4MB). Free memory was 121.4MB in the beginning and 475.6MB in the end (delta: -354.2MB). Peak memory consumption was 604.7MB. Max. memory is 16.1GB. [2024-11-08 17:27:22,315 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 117.4MB. Free memory is still 90.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 17:27:22,316 INFO L158 Benchmark]: CACSL2BoogieTranslator took 899.59ms. Allocated memory is still 153.1MB. Free memory was 121.4MB in the beginning and 73.4MB in the end (delta: 48.0MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2024-11-08 17:27:22,316 INFO L158 Benchmark]: Boogie Procedure Inliner took 222.85ms. Allocated memory is still 153.1MB. Free memory was 73.4MB in the beginning and 106.6MB in the end (delta: -33.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-08 17:27:22,317 INFO L158 Benchmark]: Boogie Preprocessor took 207.12ms. Allocated memory is still 153.1MB. Free memory was 106.6MB in the beginning and 81.3MB in the end (delta: 25.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-08 17:27:22,318 INFO L158 Benchmark]: RCFGBuilder took 2081.32ms. Allocated memory was 153.1MB in the beginning and 201.3MB in the end (delta: 48.2MB). Free memory was 80.3MB in the beginning and 98.0MB in the end (delta: -17.7MB). Peak memory consumption was 65.1MB. Max. memory is 16.1GB. [2024-11-08 17:27:22,320 INFO L158 Benchmark]: TraceAbstraction took 57498.59ms. Allocated memory was 201.3MB in the beginning and 1.1GB in the end (delta: 910.2MB). Free memory was 97.0MB in the beginning and 493.5MB in the end (delta: -396.5MB). Peak memory consumption was 680.6MB. Max. memory is 16.1GB. [2024-11-08 17:27:22,321 INFO L158 Benchmark]: Witness Printer took 271.81ms. Allocated memory is still 1.1GB. Free memory was 493.5MB in the beginning and 475.6MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-08 17:27:22,322 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 117.4MB. Free memory is still 90.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 899.59ms. Allocated memory is still 153.1MB. Free memory was 121.4MB in the beginning and 73.4MB in the end (delta: 48.0MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 222.85ms. Allocated memory is still 153.1MB. Free memory was 73.4MB in the beginning and 106.6MB in the end (delta: -33.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 207.12ms. Allocated memory is still 153.1MB. Free memory was 106.6MB in the beginning and 81.3MB in the end (delta: 25.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * RCFGBuilder took 2081.32ms. Allocated memory was 153.1MB in the beginning and 201.3MB in the end (delta: 48.2MB). Free memory was 80.3MB in the beginning and 98.0MB in the end (delta: -17.7MB). Peak memory consumption was 65.1MB. Max. memory is 16.1GB. * TraceAbstraction took 57498.59ms. Allocated memory was 201.3MB in the beginning and 1.1GB in the end (delta: 910.2MB). Free memory was 97.0MB in the beginning and 493.5MB in the end (delta: -396.5MB). Peak memory consumption was 680.6MB. Max. memory is 16.1GB. * Witness Printer took 271.81ms. Allocated memory is still 1.1GB. Free memory was 493.5MB in the beginning and 475.6MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 103]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 283 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 43.2s, OverallIterations: 24, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 27.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4643 SdHoareTripleChecker+Valid, 24.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4643 mSDsluCounter, 5096 SdHoareTripleChecker+Invalid, 20.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 671 mSDsCounter, 2156 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 17708 IncrementalHoareTripleChecker+Invalid, 19864 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2156 mSolverCounterUnsat, 4425 mSDtfsCounter, 17708 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 651 GetRequests, 611 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15333occurred in iteration=21, InterpolantAutomatonStates: 81, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.9s AutomataMinimizationTime, 24 MinimizatonAttempts, 26511 StatesRemovedByMinimization, 22 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 10.0s InterpolantComputationTime, 7094 NumberOfCodeBlocks, 7094 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 7068 ConstructedInterpolants, 0 QuantifiedInterpolants, 20340 SizeOfPredicates, 0 NumberOfNonLiveVariables, 821 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 26 InterpolantComputations, 24 PerfectInterpolantSequences, 6513/6626 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1044]: Loop Invariant Derived loop invariant: (((((((((((((((((((((a29 <= 599999) && (a4 == 1)) && (a25 <= 9)) || ((((((long long) a23 + 43) <= 0) && (a29 <= 599999)) && (a4 == 1)) && (a25 == 10))) || ((((a29 <= 140) && (a4 == 0)) && (a23 <= 262)) && (a25 <= 9))) || ((((((long long) a23 + 43) <= 0) && (a4 == 0)) && (a29 <= 599999)) && (a25 <= 9))) || (((a25 == 11) && (a29 <= 599999)) && (a4 == 1))) || ((((307 <= a23) && (a29 <= 599999)) && (a4 == 1)) && (a25 == 10))) || (((((long long) a23 + 43) <= 0) && (a29 <= 275)) && (a4 == 1))) || (((a25 == 13) && (a29 <= 599999)) && (a4 == 1))) || (((a4 == 0) && (a25 == 10)) && (a29 <= 130))) || (((a29 <= 275) && (a25 == 12)) && (a4 == 0))) || ((((a25 == 13) && (a4 == 0)) && (((long long) 35913 + a29) <= 0)) && (a23 <= 137))) || (((a29 <= 244) && (a4 == 1)) && (a25 == 10))) || ((((((long long) a23 + 43) <= 0) && (a4 == 0)) && (a25 == 11)) && (a29 <= 599999))) || ((((a29 <= 140) && (a4 == 0)) && (a23 <= 262)) && (a25 == 10))) || (((a25 == 12) && (a29 <= 599999)) && (a4 == 1))) || (((a25 == 11) && (a4 == 1)) && (a23 <= 137))) || ((((a25 == 12) && (a4 == 0)) && (a29 <= 599999)) && (a23 <= 137))) || ((((a25 == 13) && (((long long) a23 + 43) <= 0)) && (a29 <= 275)) && (a4 == 0))) || ((((a29 <= 275) && (a4 == 0)) && (a25 == 11)) && (a23 <= 262))) RESULT: Ultimate proved your program to be correct! [2024-11-08 17:27:22,362 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3582ae43-69f4-4eee-993c-7c386a475c83/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE