./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-patterns/array22_pattern.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a71582e-6981-426c-8a4b-03613c95f0d8/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a71582e-6981-426c-8a4b-03613c95f0d8/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a71582e-6981-426c-8a4b-03613c95f0d8/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a71582e-6981-426c-8a4b-03613c95f0d8/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-patterns/array22_pattern.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a71582e-6981-426c-8a4b-03613c95f0d8/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a71582e-6981-426c-8a4b-03613c95f0d8/bin/uautomizer-verify-4GaUIPS5ZU --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 31d323b6985f030ac0fb5fda45d0cb8af14c3bb3898c8ff09cf5a292e40f357b --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 21:56:18,170 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 21:56:18,282 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a71582e-6981-426c-8a4b-03613c95f0d8/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-31 21:56:18,290 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 21:56:18,291 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 21:56:18,328 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 21:56:18,329 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 21:56:18,333 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 21:56:18,334 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 21:56:18,334 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 21:56:18,335 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 21:56:18,335 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 21:56:18,336 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 21:56:18,336 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 21:56:18,337 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 21:56:18,337 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 21:56:18,338 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 21:56:18,338 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 21:56:18,339 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 21:56:18,339 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 21:56:18,340 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 21:56:18,344 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 21:56:18,344 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 21:56:18,345 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 21:56:18,345 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 21:56:18,345 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 21:56:18,346 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 21:56:18,346 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 21:56:18,346 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 21:56:18,347 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 21:56:18,347 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 21:56:18,360 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 21:56:18,360 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:56:18,360 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 21:56:18,361 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 21:56:18,361 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 21:56:18,361 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 21:56:18,361 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 21:56:18,361 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 21:56:18,362 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 21:56:18,362 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 21:56:18,362 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 21:56:18,363 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_3a71582e-6981-426c-8a4b-03613c95f0d8/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a71582e-6981-426c-8a4b-03613c95f0d8/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 31d323b6985f030ac0fb5fda45d0cb8af14c3bb3898c8ff09cf5a292e40f357b [2024-10-31 21:56:18,741 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 21:56:18,785 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 21:56:18,789 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 21:56:18,793 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 21:56:18,797 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 21:56:18,799 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a71582e-6981-426c-8a4b-03613c95f0d8/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/array-patterns/array22_pattern.c Unable to find full path for "g++" [2024-10-31 21:56:21,007 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 21:56:21,229 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 21:56:21,229 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a71582e-6981-426c-8a4b-03613c95f0d8/sv-benchmarks/c/array-patterns/array22_pattern.c [2024-10-31 21:56:21,240 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a71582e-6981-426c-8a4b-03613c95f0d8/bin/uautomizer-verify-4GaUIPS5ZU/data/c09a085b6/ce068093b43a485fa1aa2be1a1d959dc/FLAG3ceb391a9 [2024-10-31 21:56:21,577 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a71582e-6981-426c-8a4b-03613c95f0d8/bin/uautomizer-verify-4GaUIPS5ZU/data/c09a085b6/ce068093b43a485fa1aa2be1a1d959dc [2024-10-31 21:56:21,579 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 21:56:21,580 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 21:56:21,582 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 21:56:21,582 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 21:56:21,590 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 21:56:21,591 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:56:21" (1/1) ... [2024-10-31 21:56:21,592 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68235fa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:21, skipping insertion in model container [2024-10-31 21:56:21,592 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:56:21" (1/1) ... [2024-10-31 21:56:21,624 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 21:56:21,869 WARN L251 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_3a71582e-6981-426c-8a4b-03613c95f0d8/sv-benchmarks/c/array-patterns/array22_pattern.c[1347,1360] [2024-10-31 21:56:21,910 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:56:21,921 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 21:56:21,935 WARN L251 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_3a71582e-6981-426c-8a4b-03613c95f0d8/sv-benchmarks/c/array-patterns/array22_pattern.c[1347,1360] [2024-10-31 21:56:21,960 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:56:21,985 INFO L204 MainTranslator]: Completed translation [2024-10-31 21:56:21,986 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:21 WrapperNode [2024-10-31 21:56:21,986 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 21:56:21,987 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 21:56:21,988 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 21:56:21,989 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 21:56:21,996 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:21" (1/1) ... [2024-10-31 21:56:22,005 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:21" (1/1) ... [2024-10-31 21:56:22,033 INFO L138 Inliner]: procedures = 17, calls = 22, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 110 [2024-10-31 21:56:22,037 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 21:56:22,037 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 21:56:22,038 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 21:56:22,038 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 21:56:22,050 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:21" (1/1) ... [2024-10-31 21:56:22,050 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:21" (1/1) ... [2024-10-31 21:56:22,052 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:21" (1/1) ... [2024-10-31 21:56:22,082 INFO L175 MemorySlicer]: Split 8 memory accesses to 2 slices as follows [2, 6]. 75 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 3 writes are split as follows [0, 3]. [2024-10-31 21:56:22,082 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:21" (1/1) ... [2024-10-31 21:56:22,082 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:21" (1/1) ... [2024-10-31 21:56:22,087 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:21" (1/1) ... [2024-10-31 21:56:22,098 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:21" (1/1) ... [2024-10-31 21:56:22,100 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:21" (1/1) ... [2024-10-31 21:56:22,101 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:21" (1/1) ... [2024-10-31 21:56:22,103 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 21:56:22,111 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 21:56:22,111 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 21:56:22,111 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 21:56:22,112 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:21" (1/1) ... [2024-10-31 21:56:22,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:56:22,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a71582e-6981-426c-8a4b-03613c95f0d8/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:56:22,153 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a71582e-6981-426c-8a4b-03613c95f0d8/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 21:56:22,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a71582e-6981-426c-8a4b-03613c95f0d8/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 21:56:22,194 INFO L130 BoogieDeclarations]: Found specification of procedure outerBoundaryPatternCheck [2024-10-31 21:56:22,195 INFO L138 BoogieDeclarations]: Found implementation of procedure outerBoundaryPatternCheck [2024-10-31 21:56:22,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 21:56:22,196 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-31 21:56:22,196 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-31 21:56:22,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 21:56:22,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-31 21:56:22,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-31 21:56:22,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-31 21:56:22,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-31 21:56:22,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 21:56:22,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 21:56:22,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-31 21:56:22,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-31 21:56:22,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 21:56:22,289 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 21:56:22,292 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 21:56:22,553 INFO L? ?]: Removed 25 outVars from TransFormulas that were not future-live. [2024-10-31 21:56:22,553 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 21:56:22,566 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 21:56:22,567 INFO L316 CfgBuilder]: Removed 5 assume(true) statements. [2024-10-31 21:56:22,568 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:56:22 BoogieIcfgContainer [2024-10-31 21:56:22,568 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 21:56:22,571 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 21:56:22,571 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 21:56:22,575 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 21:56:22,575 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 09:56:21" (1/3) ... [2024-10-31 21:56:22,576 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e822430 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:56:22, skipping insertion in model container [2024-10-31 21:56:22,577 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:21" (2/3) ... [2024-10-31 21:56:22,578 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e822430 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:56:22, skipping insertion in model container [2024-10-31 21:56:22,579 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:56:22" (3/3) ... [2024-10-31 21:56:22,580 INFO L112 eAbstractionObserver]: Analyzing ICFG array22_pattern.c [2024-10-31 21:56:22,600 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 21:56:22,600 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-31 21:56:22,683 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 21:56:22,692 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;@4ed8a738, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 21:56:22,692 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-31 21:56:22,697 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 32 states have (on average 1.53125) internal successors, (49), 33 states have internal predecessors, (49), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-31 21:56:22,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-10-31 21:56:22,707 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:56:22,707 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:56:22,708 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 21:56:22,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:56:22,714 INFO L85 PathProgramCache]: Analyzing trace with hash -1798908762, now seen corresponding path program 1 times [2024-10-31 21:56:22,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:56:22,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694465763] [2024-10-31 21:56:22,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:56:22,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:56:22,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:56:22,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 21:56:22,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:56:22,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:56:22,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:56:22,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694465763] [2024-10-31 21:56:22,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694465763] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:56:22,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:56:22,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:56:22,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323922616] [2024-10-31 21:56:22,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:56:23,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-31 21:56:23,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:56:23,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-31 21:56:23,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 21:56:23,035 INFO L87 Difference]: Start difference. First operand has 41 states, 32 states have (on average 1.53125) internal successors, (49), 33 states have internal predecessors, (49), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-31 21:56:23,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:56:23,064 INFO L93 Difference]: Finished difference Result 79 states and 117 transitions. [2024-10-31 21:56:23,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-31 21:56:23,068 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2024-10-31 21:56:23,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:56:23,075 INFO L225 Difference]: With dead ends: 79 [2024-10-31 21:56:23,075 INFO L226 Difference]: Without dead ends: 37 [2024-10-31 21:56:23,079 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 21:56:23,085 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 21:56:23,088 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 21:56:23,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-10-31 21:56:23,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2024-10-31 21:56:23,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 29 states have (on average 1.2758620689655173) internal successors, (37), 29 states have internal predecessors, (37), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-31 21:56:23,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 47 transitions. [2024-10-31 21:56:23,136 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 47 transitions. Word has length 15 [2024-10-31 21:56:23,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:56:23,137 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 47 transitions. [2024-10-31 21:56:23,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-31 21:56:23,137 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 47 transitions. [2024-10-31 21:56:23,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-10-31 21:56:23,139 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:56:23,140 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2024-10-31 21:56:23,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 21:56:23,142 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 21:56:23,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:56:23,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1909329698, now seen corresponding path program 1 times [2024-10-31 21:56:23,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:56:23,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996436100] [2024-10-31 21:56:23,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:56:23,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:56:23,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:56:23,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 21:56:23,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:56:23,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-31 21:56:23,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:56:23,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-31 21:56:23,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:56:23,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-31 21:56:23,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:56:23,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-31 21:56:23,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:56:23,673 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-31 21:56:23,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:56:23,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996436100] [2024-10-31 21:56:23,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996436100] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:56:23,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:56:23,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 21:56:23,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560980998] [2024-10-31 21:56:23,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:56:23,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 21:56:23,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:56:23,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 21:56:23,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:56:23,679 INFO L87 Difference]: Start difference. First operand 37 states and 47 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-31 21:56:23,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:56:23,704 INFO L93 Difference]: Finished difference Result 44 states and 55 transitions. [2024-10-31 21:56:23,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 21:56:23,705 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 42 [2024-10-31 21:56:23,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:56:23,707 INFO L225 Difference]: With dead ends: 44 [2024-10-31 21:56:23,707 INFO L226 Difference]: Without dead ends: 40 [2024-10-31 21:56:23,710 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:56:23,712 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 11 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 21:56:23,712 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 110 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 21:56:23,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2024-10-31 21:56:23,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2024-10-31 21:56:23,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 32 states have (on average 1.28125) internal successors, (41), 32 states have internal predecessors, (41), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-31 21:56:23,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 51 transitions. [2024-10-31 21:56:23,732 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 51 transitions. Word has length 42 [2024-10-31 21:56:23,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:56:23,733 INFO L471 AbstractCegarLoop]: Abstraction has 40 states and 51 transitions. [2024-10-31 21:56:23,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-31 21:56:23,734 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 51 transitions. [2024-10-31 21:56:23,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-10-31 21:56:23,738 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:56:23,738 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:56:23,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 21:56:23,739 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 21:56:23,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:56:23,739 INFO L85 PathProgramCache]: Analyzing trace with hash 1786751912, now seen corresponding path program 1 times [2024-10-31 21:56:23,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:56:23,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608844049] [2024-10-31 21:56:23,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:56:23,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:56:23,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:56:24,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 21:56:24,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:56:24,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-31 21:56:24,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:56:24,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-31 21:56:24,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:56:24,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-31 21:56:24,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:56:24,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-31 21:56:24,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:56:24,070 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-31 21:56:24,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:56:24,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608844049] [2024-10-31 21:56:24,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608844049] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:56:24,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:56:24,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 21:56:24,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018545163] [2024-10-31 21:56:24,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:56:24,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 21:56:24,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:56:24,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 21:56:24,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 21:56:24,078 INFO L87 Difference]: Start difference. First operand 40 states and 51 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-31 21:56:24,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:56:24,287 INFO L93 Difference]: Finished difference Result 83 states and 106 transitions. [2024-10-31 21:56:24,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 21:56:24,288 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 47 [2024-10-31 21:56:24,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:56:24,290 INFO L225 Difference]: With dead ends: 83 [2024-10-31 21:56:24,291 INFO L226 Difference]: Without dead ends: 50 [2024-10-31 21:56:24,292 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 21:56:24,295 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 22 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 21:56:24,296 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 110 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 21:56:24,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-10-31 21:56:24,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 41. [2024-10-31 21:56:24,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 33 states have (on average 1.2727272727272727) internal successors, (42), 33 states have internal predecessors, (42), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-31 21:56:24,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 52 transitions. [2024-10-31 21:56:24,314 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 52 transitions. Word has length 47 [2024-10-31 21:56:24,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:56:24,314 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 52 transitions. [2024-10-31 21:56:24,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-31 21:56:24,315 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 52 transitions. [2024-10-31 21:56:24,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-10-31 21:56:24,319 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:56:24,319 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:56:24,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 21:56:24,319 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 21:56:24,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:56:24,320 INFO L85 PathProgramCache]: Analyzing trace with hash -2075657686, now seen corresponding path program 1 times [2024-10-31 21:56:24,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:56:24,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389301207] [2024-10-31 21:56:24,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:56:24,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:56:24,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:56:24,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 21:56:24,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:56:24,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-31 21:56:24,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:56:24,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-31 21:56:24,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:56:24,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-31 21:56:24,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:56:24,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-31 21:56:24,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:56:24,528 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-31 21:56:24,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:56:24,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389301207] [2024-10-31 21:56:24,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389301207] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:56:24,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:56:24,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 21:56:24,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661313646] [2024-10-31 21:56:24,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:56:24,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 21:56:24,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:56:24,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 21:56:24,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:56:24,535 INFO L87 Difference]: Start difference. First operand 41 states and 52 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-31 21:56:24,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:56:24,618 INFO L93 Difference]: Finished difference Result 85 states and 109 transitions. [2024-10-31 21:56:24,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 21:56:24,620 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 50 [2024-10-31 21:56:24,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:56:24,622 INFO L225 Difference]: With dead ends: 85 [2024-10-31 21:56:24,622 INFO L226 Difference]: Without dead ends: 49 [2024-10-31 21:56:24,622 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:56:24,624 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 13 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 21:56:24,627 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 75 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 21:56:24,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2024-10-31 21:56:24,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 41. [2024-10-31 21:56:24,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 33 states have (on average 1.2424242424242424) internal successors, (41), 33 states have internal predecessors, (41), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-31 21:56:24,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 51 transitions. [2024-10-31 21:56:24,643 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 51 transitions. Word has length 50 [2024-10-31 21:56:24,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:56:24,644 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 51 transitions. [2024-10-31 21:56:24,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-31 21:56:24,644 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 51 transitions. [2024-10-31 21:56:24,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-10-31 21:56:24,647 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:56:24,647 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:56:24,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 21:56:24,648 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 21:56:24,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:56:24,648 INFO L85 PathProgramCache]: Analyzing trace with hash 874891816, now seen corresponding path program 1 times [2024-10-31 21:56:24,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:56:24,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250996893] [2024-10-31 21:56:24,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:56:24,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:56:24,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:56:24,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 21:56:24,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:56:24,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-31 21:56:24,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:56:24,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-31 21:56:24,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:56:24,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-31 21:56:24,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:56:24,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-31 21:56:24,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:56:24,977 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-31 21:56:24,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:56:24,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250996893] [2024-10-31 21:56:24,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250996893] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 21:56:24,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2077967609] [2024-10-31 21:56:24,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:56:24,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:56:24,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a71582e-6981-426c-8a4b-03613c95f0d8/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:56:24,985 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a71582e-6981-426c-8a4b-03613c95f0d8/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:56:24,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a71582e-6981-426c-8a4b-03613c95f0d8/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-31 21:56:25,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:56:25,118 INFO L255 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-31 21:56:25,125 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:56:25,237 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-31 21:56:25,240 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 21:56:25,413 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-31 21:56:25,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2077967609] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 21:56:25,413 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 21:56:25,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2024-10-31 21:56:25,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112127191] [2024-10-31 21:56:25,414 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 21:56:25,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-31 21:56:25,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:56:25,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-31 21:56:25,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2024-10-31 21:56:25,420 INFO L87 Difference]: Start difference. First operand 41 states and 51 transitions. Second operand has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-31 21:56:25,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:56:25,675 INFO L93 Difference]: Finished difference Result 88 states and 110 transitions. [2024-10-31 21:56:25,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-31 21:56:25,677 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 52 [2024-10-31 21:56:25,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:56:25,678 INFO L225 Difference]: With dead ends: 88 [2024-10-31 21:56:25,678 INFO L226 Difference]: Without dead ends: 53 [2024-10-31 21:56:25,678 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 106 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2024-10-31 21:56:25,679 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 49 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 21:56:25,681 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 129 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 21:56:25,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2024-10-31 21:56:25,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 49. [2024-10-31 21:56:25,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 40 states have (on average 1.2) internal successors, (48), 40 states have internal predecessors, (48), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-31 21:56:25,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 58 transitions. [2024-10-31 21:56:25,695 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 58 transitions. Word has length 52 [2024-10-31 21:56:25,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:56:25,695 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 58 transitions. [2024-10-31 21:56:25,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-31 21:56:25,696 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 58 transitions. [2024-10-31 21:56:25,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-10-31 21:56:25,697 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:56:25,697 INFO L215 NwaCegarLoop]: trace histogram [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, 1] [2024-10-31 21:56:25,719 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a71582e-6981-426c-8a4b-03613c95f0d8/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-31 21:56:25,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a71582e-6981-426c-8a4b-03613c95f0d8/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:56:25,901 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 21:56:25,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:56:25,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1211966936, now seen corresponding path program 2 times [2024-10-31 21:56:25,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:56:25,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462506123] [2024-10-31 21:56:25,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:56:25,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:56:25,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:56:26,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 21:56:26,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:56:26,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-31 21:56:26,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:56:26,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-31 21:56:26,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:56:26,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-31 21:56:26,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:56:26,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-31 21:56:26,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:56:26,111 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-10-31 21:56:26,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:56:26,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462506123] [2024-10-31 21:56:26,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462506123] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 21:56:26,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [209612025] [2024-10-31 21:56:26,113 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 21:56:26,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:56:26,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a71582e-6981-426c-8a4b-03613c95f0d8/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:56:26,116 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a71582e-6981-426c-8a4b-03613c95f0d8/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:56:26,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a71582e-6981-426c-8a4b-03613c95f0d8/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-31 21:56:26,226 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-31 21:56:26,227 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 21:56:26,228 INFO L255 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-31 21:56:26,231 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:56:26,342 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-10-31 21:56:26,342 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 21:56:26,446 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-10-31 21:56:26,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [209612025] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 21:56:26,446 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 21:56:26,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2024-10-31 21:56:26,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661842556] [2024-10-31 21:56:26,447 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 21:56:26,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-31 21:56:26,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:56:26,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-31 21:56:26,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2024-10-31 21:56:26,451 INFO L87 Difference]: Start difference. First operand 49 states and 58 transitions. Second operand has 15 states, 15 states have (on average 3.8) internal successors, (57), 15 states have internal predecessors, (57), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-10-31 21:56:26,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:56:26,690 INFO L93 Difference]: Finished difference Result 108 states and 130 transitions. [2024-10-31 21:56:26,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-31 21:56:26,691 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.8) internal successors, (57), 15 states have internal predecessors, (57), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 56 [2024-10-31 21:56:26,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:56:26,692 INFO L225 Difference]: With dead ends: 108 [2024-10-31 21:56:26,692 INFO L226 Difference]: Without dead ends: 75 [2024-10-31 21:56:26,693 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 112 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-10-31 21:56:26,693 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 36 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 21:56:26,694 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 183 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 21:56:26,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-10-31 21:56:26,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 63. [2024-10-31 21:56:26,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 54 states have (on average 1.1851851851851851) internal successors, (64), 54 states have internal predecessors, (64), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-31 21:56:26,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 74 transitions. [2024-10-31 21:56:26,715 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 74 transitions. Word has length 56 [2024-10-31 21:56:26,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:56:26,715 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 74 transitions. [2024-10-31 21:56:26,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.8) internal successors, (57), 15 states have internal predecessors, (57), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-10-31 21:56:26,716 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 74 transitions. [2024-10-31 21:56:26,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-10-31 21:56:26,717 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:56:26,717 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 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] [2024-10-31 21:56:26,739 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a71582e-6981-426c-8a4b-03613c95f0d8/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-31 21:56:26,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a71582e-6981-426c-8a4b-03613c95f0d8/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:56:26,918 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 21:56:26,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:56:26,919 INFO L85 PathProgramCache]: Analyzing trace with hash -511912674, now seen corresponding path program 3 times [2024-10-31 21:56:26,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:56:26,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080136493] [2024-10-31 21:56:26,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:56:26,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:56:27,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-31 21:56:27,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [464280347] [2024-10-31 21:56:27,008 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-31 21:56:27,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:56:27,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a71582e-6981-426c-8a4b-03613c95f0d8/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:56:27,012 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a71582e-6981-426c-8a4b-03613c95f0d8/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:56:27,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a71582e-6981-426c-8a4b-03613c95f0d8/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-31 21:56:29,329 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2024-10-31 21:56:29,329 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 21:56:29,333 WARN L253 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 110 conjuncts are in the unsatisfiable core [2024-10-31 21:56:29,351 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:56:29,485 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-31 21:56:29,618 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-10-31 21:56:29,905 INFO L349 Elim1Store]: treesize reduction 32, result has 31.9 percent of original size [2024-10-31 21:56:29,905 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 30 [2024-10-31 21:56:30,176 INFO L349 Elim1Store]: treesize reduction 52, result has 22.4 percent of original size [2024-10-31 21:56:30,177 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 39 treesize of output 44 [2024-10-31 21:56:32,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-31 21:56:32,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-31 21:56:32,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-31 21:56:32,322 INFO L349 Elim1Store]: treesize reduction 266, result has 30.9 percent of original size [2024-10-31 21:56:32,322 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 5 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 36 case distinctions, treesize of input 88 treesize of output 158 [2024-10-31 21:56:41,994 INFO L349 Elim1Store]: treesize reduction 192, result has 34.9 percent of original size [2024-10-31 21:56:41,995 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 27 case distinctions, treesize of input 468 treesize of output 500