./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/list-properties/splice-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_7f48d78b-9061-487e-b1b6-aa5a99c21ced/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f48d78b-9061-487e-b1b6-aa5a99c21ced/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f48d78b-9061-487e-b1b6-aa5a99c21ced/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f48d78b-9061-487e-b1b6-aa5a99c21ced/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/list-properties/splice-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f48d78b-9061-487e-b1b6-aa5a99c21ced/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f48d78b-9061-487e-b1b6-aa5a99c21ced/bin/uautomizer-verify-uCwYo4JHxu --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 098fc4cb5d15cb305e8d98bf2e1c69b111d102681b51dec68ae720515d6f30bc --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:04:52,372 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:04:52,526 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f48d78b-9061-487e-b1b6-aa5a99c21ced/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 08:04:52,534 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:04:52,535 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:04:52,575 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:04:52,576 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:04:52,576 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:04:52,577 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 08:04:52,582 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 08:04:52,583 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:04:52,584 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:04:52,584 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:04:52,586 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:04:52,587 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 08:04:52,587 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 08:04:52,587 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 08:04:52,588 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 08:04:52,588 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:04:52,589 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 08:04:52,589 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 08:04:52,590 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 08:04:52,590 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 08:04:52,591 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 08:04:52,591 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:04:52,592 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:04:52,593 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:04:52,593 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 08:04:52,594 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:04:52,594 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:04:52,595 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 08:04:52,595 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 08:04:52,595 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 08:04:52,596 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 08:04:52,596 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 08:04:52,596 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 08:04:52,597 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 08:04:52,597 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 08:04:52,597 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 08:04:52,598 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_7f48d78b-9061-487e-b1b6-aa5a99c21ced/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f48d78b-9061-487e-b1b6-aa5a99c21ced/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 098fc4cb5d15cb305e8d98bf2e1c69b111d102681b51dec68ae720515d6f30bc [2023-11-19 08:04:52,947 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:04:52,974 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:04:52,977 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:04:52,979 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:04:52,980 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:04:52,981 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f48d78b-9061-487e-b1b6-aa5a99c21ced/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/list-properties/splice-2.i [2023-11-19 08:04:56,156 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:04:56,530 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:04:56,531 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f48d78b-9061-487e-b1b6-aa5a99c21ced/sv-benchmarks/c/list-properties/splice-2.i [2023-11-19 08:04:56,555 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f48d78b-9061-487e-b1b6-aa5a99c21ced/bin/uautomizer-verify-uCwYo4JHxu/data/a44f2182a/0a92d358564846b49212c454c6014e12/FLAGa1105f070 [2023-11-19 08:04:56,571 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f48d78b-9061-487e-b1b6-aa5a99c21ced/bin/uautomizer-verify-uCwYo4JHxu/data/a44f2182a/0a92d358564846b49212c454c6014e12 [2023-11-19 08:04:56,574 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:04:56,576 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:04:56,577 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:04:56,577 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:04:56,584 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:04:56,584 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:04:56" (1/1) ... [2023-11-19 08:04:56,586 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2999955b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:56, skipping insertion in model container [2023-11-19 08:04:56,586 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:04:56" (1/1) ... [2023-11-19 08:04:56,644 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:04:56,952 WARN L240 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_7f48d78b-9061-487e-b1b6-aa5a99c21ced/sv-benchmarks/c/list-properties/splice-2.i[23721,23734] [2023-11-19 08:04:56,958 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:04:56,975 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:04:57,046 WARN L240 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_7f48d78b-9061-487e-b1b6-aa5a99c21ced/sv-benchmarks/c/list-properties/splice-2.i[23721,23734] [2023-11-19 08:04:57,047 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:04:57,082 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:04:57,083 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:57 WrapperNode [2023-11-19 08:04:57,083 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:04:57,084 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:04:57,084 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:04:57,084 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:04:57,093 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:57" (1/1) ... [2023-11-19 08:04:57,107 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:57" (1/1) ... [2023-11-19 08:04:57,130 INFO L138 Inliner]: procedures = 124, calls = 24, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 104 [2023-11-19 08:04:57,130 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:04:57,131 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:04:57,133 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:04:57,133 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:04:57,143 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:57" (1/1) ... [2023-11-19 08:04:57,144 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:57" (1/1) ... [2023-11-19 08:04:57,148 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:57" (1/1) ... [2023-11-19 08:04:57,148 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:57" (1/1) ... [2023-11-19 08:04:57,156 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:57" (1/1) ... [2023-11-19 08:04:57,161 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:57" (1/1) ... [2023-11-19 08:04:57,163 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:57" (1/1) ... [2023-11-19 08:04:57,164 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:57" (1/1) ... [2023-11-19 08:04:57,168 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:04:57,169 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:04:57,169 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:04:57,169 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:04:57,170 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:57" (1/1) ... [2023-11-19 08:04:57,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:04:57,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f48d78b-9061-487e-b1b6-aa5a99c21ced/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:57,211 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f48d78b-9061-487e-b1b6-aa5a99c21ced/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 08:04:57,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f48d78b-9061-487e-b1b6-aa5a99c21ced/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 08:04:57,245 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2023-11-19 08:04:57,245 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2023-11-19 08:04:57,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 08:04:57,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 08:04:57,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 08:04:57,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 08:04:57,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 08:04:57,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 08:04:57,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 08:04:57,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:04:57,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:04:57,383 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:04:57,385 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:04:57,428 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2023-11-19 08:04:57,597 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:04:57,606 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:04:57,606 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-19 08:04:57,614 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:04:57 BoogieIcfgContainer [2023-11-19 08:04:57,615 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:04:57,618 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 08:04:57,618 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 08:04:57,624 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 08:04:57,624 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:04:56" (1/3) ... [2023-11-19 08:04:57,625 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25dde468 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:04:57, skipping insertion in model container [2023-11-19 08:04:57,625 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:57" (2/3) ... [2023-11-19 08:04:57,626 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25dde468 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:04:57, skipping insertion in model container [2023-11-19 08:04:57,626 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:04:57" (3/3) ... [2023-11-19 08:04:57,627 INFO L112 eAbstractionObserver]: Analyzing ICFG splice-2.i [2023-11-19 08:04:57,650 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 08:04:57,650 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 08:04:57,730 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 08:04:57,739 INFO L357 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, mHoare=true, 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;@45d28abc, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 08:04:57,740 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 08:04:57,744 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 27 states have (on average 1.5925925925925926) internal successors, (43), 29 states have internal predecessors, (43), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:04:57,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-19 08:04:57,755 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:57,756 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:04:57,757 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:04:57,767 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:57,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1192551972, now seen corresponding path program 1 times [2023-11-19 08:04:57,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:57,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318075630] [2023-11-19 08:04:57,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:57,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:57,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:58,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:04:58,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:58,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318075630] [2023-11-19 08:04:58,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318075630] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:58,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:04:58,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:04:58,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675367595] [2023-11-19 08:04:58,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:58,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 08:04:58,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:58,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 08:04:58,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 08:04:58,097 INFO L87 Difference]: Start difference. First operand has 31 states, 27 states have (on average 1.5925925925925926) internal successors, (43), 29 states have internal predecessors, (43), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2023-11-19 08:04:58,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:58,119 INFO L93 Difference]: Finished difference Result 48 states and 71 transitions. [2023-11-19 08:04:58,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 08:04:58,121 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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 12 [2023-11-19 08:04:58,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:04:58,129 INFO L225 Difference]: With dead ends: 48 [2023-11-19 08:04:58,129 INFO L226 Difference]: Without dead ends: 23 [2023-11-19 08:04:58,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 08:04:58,136 INFO L413 NwaCegarLoop]: 40 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, 40 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 [2023-11-19 08:04:58,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:04:58,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2023-11-19 08:04:58,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2023-11-19 08:04:58,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 22 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) [2023-11-19 08:04:58,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 29 transitions. [2023-11-19 08:04:58,174 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 29 transitions. Word has length 12 [2023-11-19 08:04:58,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:04:58,174 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 29 transitions. [2023-11-19 08:04:58,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2023-11-19 08:04:58,175 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 29 transitions. [2023-11-19 08:04:58,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-19 08:04:58,176 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:58,176 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:04:58,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 08:04:58,177 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:04:58,178 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:58,178 INFO L85 PathProgramCache]: Analyzing trace with hash 675462707, now seen corresponding path program 1 times [2023-11-19 08:04:58,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:58,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416581038] [2023-11-19 08:04:58,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:58,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:58,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:58,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:04:58,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:58,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416581038] [2023-11-19 08:04:58,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416581038] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:58,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:04:58,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 08:04:58,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793424060] [2023-11-19 08:04:58,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:58,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:04:58,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:58,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:04:58,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:04:58,484 INFO L87 Difference]: Start difference. First operand 23 states and 29 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2023-11-19 08:04:58,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:58,556 INFO L93 Difference]: Finished difference Result 40 states and 51 transitions. [2023-11-19 08:04:58,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 08:04:58,559 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 14 [2023-11-19 08:04:58,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:04:58,561 INFO L225 Difference]: With dead ends: 40 [2023-11-19 08:04:58,561 INFO L226 Difference]: Without dead ends: 33 [2023-11-19 08:04:58,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:04:58,563 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 10 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:04:58,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 62 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:04:58,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2023-11-19 08:04:58,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 28. [2023-11-19 08:04:58,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 27 states have internal predecessors, (36), 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) [2023-11-19 08:04:58,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 36 transitions. [2023-11-19 08:04:58,582 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 36 transitions. Word has length 14 [2023-11-19 08:04:58,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:04:58,582 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 36 transitions. [2023-11-19 08:04:58,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2023-11-19 08:04:58,583 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2023-11-19 08:04:58,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-19 08:04:58,585 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:58,585 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:04:58,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 08:04:58,585 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:04:58,586 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:58,586 INFO L85 PathProgramCache]: Analyzing trace with hash 577924040, now seen corresponding path program 1 times [2023-11-19 08:04:58,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:58,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117554784] [2023-11-19 08:04:58,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:58,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:58,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:58,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:04:58,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:58,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117554784] [2023-11-19 08:04:58,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117554784] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:58,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:04:58,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 08:04:58,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532810981] [2023-11-19 08:04:58,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:58,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:04:58,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:58,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:04:58,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:04:58,710 INFO L87 Difference]: Start difference. First operand 28 states and 36 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) [2023-11-19 08:04:58,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:58,771 INFO L93 Difference]: Finished difference Result 47 states and 60 transitions. [2023-11-19 08:04:58,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 08:04:58,773 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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 16 [2023-11-19 08:04:58,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:04:58,775 INFO L225 Difference]: With dead ends: 47 [2023-11-19 08:04:58,777 INFO L226 Difference]: Without dead ends: 39 [2023-11-19 08:04:58,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:04:58,779 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 7 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:04:58,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 63 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:04:58,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2023-11-19 08:04:58,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 37. [2023-11-19 08:04:58,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.3611111111111112) internal successors, (49), 36 states have internal predecessors, (49), 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) [2023-11-19 08:04:58,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 49 transitions. [2023-11-19 08:04:58,790 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 49 transitions. Word has length 16 [2023-11-19 08:04:58,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:04:58,790 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 49 transitions. [2023-11-19 08:04:58,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) [2023-11-19 08:04:58,791 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 49 transitions. [2023-11-19 08:04:58,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-19 08:04:58,792 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:58,792 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:04:58,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 08:04:58,793 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:04:58,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:58,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1645466066, now seen corresponding path program 1 times [2023-11-19 08:04:58,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:58,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929395819] [2023-11-19 08:04:58,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:58,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:58,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:59,078 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:04:59,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:59,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929395819] [2023-11-19 08:04:59,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929395819] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:59,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:04:59,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 08:04:59,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798413468] [2023-11-19 08:04:59,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:59,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 08:04:59,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:59,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 08:04:59,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-19 08:04:59,082 INFO L87 Difference]: Start difference. First operand 37 states and 49 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 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) [2023-11-19 08:04:59,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:59,223 INFO L93 Difference]: Finished difference Result 70 states and 94 transitions. [2023-11-19 08:04:59,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 08:04:59,224 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 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 17 [2023-11-19 08:04:59,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:04:59,225 INFO L225 Difference]: With dead ends: 70 [2023-11-19 08:04:59,225 INFO L226 Difference]: Without dead ends: 43 [2023-11-19 08:04:59,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-11-19 08:04:59,227 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 11 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 08:04:59,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 78 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 08:04:59,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2023-11-19 08:04:59,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 39. [2023-11-19 08:04:59,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.3421052631578947) internal successors, (51), 38 states have internal predecessors, (51), 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) [2023-11-19 08:04:59,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 51 transitions. [2023-11-19 08:04:59,236 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 51 transitions. Word has length 17 [2023-11-19 08:04:59,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:04:59,237 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 51 transitions. [2023-11-19 08:04:59,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 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) [2023-11-19 08:04:59,237 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 51 transitions. [2023-11-19 08:04:59,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-19 08:04:59,238 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:59,238 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:04:59,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 08:04:59,239 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:04:59,239 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:59,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1334445095, now seen corresponding path program 1 times [2023-11-19 08:04:59,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:59,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961698987] [2023-11-19 08:04:59,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:59,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:59,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:00,102 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:05:00,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:05:00,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961698987] [2023-11-19 08:05:00,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961698987] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 08:05:00,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [780248820] [2023-11-19 08:05:00,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:05:00,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:05:00,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f48d78b-9061-487e-b1b6-aa5a99c21ced/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:05:00,112 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f48d78b-9061-487e-b1b6-aa5a99c21ced/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:05:00,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f48d78b-9061-487e-b1b6-aa5a99c21ced/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 08:05:00,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:00,251 INFO L262 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 50 conjunts are in the unsatisfiable core [2023-11-19 08:05:00,261 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:05:00,401 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 [2023-11-19 08:05:00,520 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 23 treesize of output 11 [2023-11-19 08:05:00,606 INFO L349 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2023-11-19 08:05:00,610 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 22 [2023-11-19 08:05:00,813 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-19 08:05:00,813 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 1 case distinctions, treesize of input 30 treesize of output 21 [2023-11-19 08:05:00,902 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:05:00,902 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:05:01,112 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_99 (Array Int Int)) (|v_ULTIMATE.start_main_~p~0#1.base_28| Int)) (let ((.cse0 (select (select (let ((.cse2 (store |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_99))) (store .cse2 |v_ULTIMATE.start_main_~p~0#1.base_28| (store (select .cse2 |v_ULTIMATE.start_main_~p~0#1.base_28|) |c_ULTIMATE.start_main_~t~0#1.offset| 3))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) (or (= .cse0 3) (= .cse0 1) (not (= (let ((.cse1 (+ |c_ULTIMATE.start_main_~p~0#1.offset| 4))) (store (select |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base|) .cse1 (select v_ArrVal_99 .cse1))) v_ArrVal_99))))) is different from false [2023-11-19 08:05:01,183 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_99 (Array Int Int)) (|v_ULTIMATE.start_main_~p~0#1.base_28| Int)) (let ((.cse0 (select (select (let ((.cse2 (store |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_99))) (store .cse2 |v_ULTIMATE.start_main_~p~0#1.base_28| (store (select .cse2 |v_ULTIMATE.start_main_~p~0#1.base_28|) 0 3))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) (or (= 3 .cse0) (= .cse0 1) (not (= (let ((.cse1 (+ |c_ULTIMATE.start_main_~p~0#1.offset| 4))) (store (select |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base|) .cse1 (select v_ArrVal_99 .cse1))) v_ArrVal_99))))) is different from false [2023-11-19 08:05:01,260 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 08:05:01,261 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 277 treesize of output 283 [2023-11-19 08:05:02,498 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-19 08:05:02,505 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-19 08:05:02,920 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 3159 treesize of output 3065 [2023-11-19 08:05:03,020 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 346 treesize of output 334 [2023-11-19 08:05:03,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:05:03,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:05:03,162 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 50 [2023-11-19 08:05:03,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:05:03,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:05:03,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:05:03,222 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:05:03,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [780248820] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 08:05:03,223 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 08:05:03,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 11] total 27 [2023-11-19 08:05:03,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957083535] [2023-11-19 08:05:03,224 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 08:05:03,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-11-19 08:05:03,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:05:03,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-11-19 08:05:03,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=490, Unknown=2, NotChecked=94, Total=702 [2023-11-19 08:05:03,230 INFO L87 Difference]: Start difference. First operand 39 states and 51 transitions. Second operand has 27 states, 27 states have (on average 2.1481481481481484) internal successors, (58), 27 states have internal predecessors, (58), 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) [2023-11-19 08:05:04,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:05:04,269 INFO L93 Difference]: Finished difference Result 115 states and 142 transitions. [2023-11-19 08:05:04,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-11-19 08:05:04,270 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 2.1481481481481484) internal successors, (58), 27 states have internal predecessors, (58), 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 23 [2023-11-19 08:05:04,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:05:04,272 INFO L225 Difference]: With dead ends: 115 [2023-11-19 08:05:04,272 INFO L226 Difference]: Without dead ends: 113 [2023-11-19 08:05:04,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 443 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=370, Invalid=1616, Unknown=2, NotChecked=174, Total=2162 [2023-11-19 08:05:04,275 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 172 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 239 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-19 08:05:04,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 270 Invalid, 693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 418 Invalid, 0 Unknown, 239 Unchecked, 0.5s Time] [2023-11-19 08:05:04,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2023-11-19 08:05:04,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 61. [2023-11-19 08:05:04,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 60 states have (on average 1.3166666666666667) internal successors, (79), 60 states have internal predecessors, (79), 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) [2023-11-19 08:05:04,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 79 transitions. [2023-11-19 08:05:04,314 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 79 transitions. Word has length 23 [2023-11-19 08:05:04,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:05:04,315 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 79 transitions. [2023-11-19 08:05:04,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 2.1481481481481484) internal successors, (58), 27 states have internal predecessors, (58), 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) [2023-11-19 08:05:04,316 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 79 transitions. [2023-11-19 08:05:04,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-19 08:05:04,318 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:05:04,319 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:05:04,341 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f48d78b-9061-487e-b1b6-aa5a99c21ced/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 08:05:04,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f48d78b-9061-487e-b1b6-aa5a99c21ced/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:05:04,533 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:05:04,533 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:05:04,533 INFO L85 PathProgramCache]: Analyzing trace with hash -253902807, now seen corresponding path program 1 times [2023-11-19 08:05:04,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:05:04,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427658462] [2023-11-19 08:05:04,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:05:04,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:05:04,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:04,599 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 08:05:04,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:05:04,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427658462] [2023-11-19 08:05:04,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427658462] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:05:04,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:05:04,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:05:04,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81431478] [2023-11-19 08:05:04,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:05:04,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:05:04,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:05:04,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:05:04,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:05:04,605 INFO L87 Difference]: Start difference. First operand 61 states and 79 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2023-11-19 08:05:04,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:05:04,626 INFO L93 Difference]: Finished difference Result 115 states and 150 transitions. [2023-11-19 08:05:04,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:05:04,627 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 23 [2023-11-19 08:05:04,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:05:04,631 INFO L225 Difference]: With dead ends: 115 [2023-11-19 08:05:04,631 INFO L226 Difference]: Without dead ends: 82 [2023-11-19 08:05:04,632 INFO L412 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 [2023-11-19 08:05:04,636 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 18 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:05:04,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 60 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:05:04,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2023-11-19 08:05:04,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 70. [2023-11-19 08:05:04,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 69 states have (on average 1.2463768115942029) internal successors, (86), 69 states have internal predecessors, (86), 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) [2023-11-19 08:05:04,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 86 transitions. [2023-11-19 08:05:04,662 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 86 transitions. Word has length 23 [2023-11-19 08:05:04,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:05:04,663 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 86 transitions. [2023-11-19 08:05:04,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2023-11-19 08:05:04,663 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 86 transitions. [2023-11-19 08:05:04,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-19 08:05:04,664 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:05:04,664 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:05:04,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 08:05:04,665 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:05:04,665 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:05:04,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1793450878, now seen corresponding path program 1 times [2023-11-19 08:05:04,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:05:04,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019466185] [2023-11-19 08:05:04,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:05:04,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:05:04,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:05,154 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:05:05,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:05:05,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019466185] [2023-11-19 08:05:05,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019466185] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 08:05:05,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [48995353] [2023-11-19 08:05:05,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:05:05,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:05:05,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f48d78b-9061-487e-b1b6-aa5a99c21ced/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:05:05,157 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f48d78b-9061-487e-b1b6-aa5a99c21ced/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:05:05,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f48d78b-9061-487e-b1b6-aa5a99c21ced/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 08:05:05,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:05,274 INFO L262 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-19 08:05:05,282 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:05:05,322 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 13 treesize of output 9 [2023-11-19 08:05:05,326 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 13 treesize of output 9 [2023-11-19 08:05:05,385 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 08:05:05,385 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:05:05,431 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 08:05:05,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [48995353] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 08:05:05,432 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 08:05:05,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6] total 12 [2023-11-19 08:05:05,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198922010] [2023-11-19 08:05:05,433 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 08:05:05,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-19 08:05:05,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:05:05,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-19 08:05:05,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-11-19 08:05:05,435 INFO L87 Difference]: Start difference. First operand 70 states and 86 transitions. Second operand has 12 states, 12 states have (on average 3.75) internal successors, (45), 12 states have internal predecessors, (45), 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) [2023-11-19 08:05:05,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:05:05,669 INFO L93 Difference]: Finished difference Result 83 states and 101 transitions. [2023-11-19 08:05:05,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 08:05:05,670 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.75) internal successors, (45), 12 states have internal predecessors, (45), 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 25 [2023-11-19 08:05:05,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:05:05,671 INFO L225 Difference]: With dead ends: 83 [2023-11-19 08:05:05,671 INFO L226 Difference]: Without dead ends: 75 [2023-11-19 08:05:05,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2023-11-19 08:05:05,673 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 45 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 08:05:05,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 94 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 08:05:05,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2023-11-19 08:05:05,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 72. [2023-11-19 08:05:05,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 71 states have (on average 1.2394366197183098) internal successors, (88), 71 states have internal predecessors, (88), 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) [2023-11-19 08:05:05,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 88 transitions. [2023-11-19 08:05:05,690 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 88 transitions. Word has length 25 [2023-11-19 08:05:05,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:05:05,690 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 88 transitions. [2023-11-19 08:05:05,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.75) internal successors, (45), 12 states have internal predecessors, (45), 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) [2023-11-19 08:05:05,691 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 88 transitions. [2023-11-19 08:05:05,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-19 08:05:05,692 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:05:05,692 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:05:05,718 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f48d78b-9061-487e-b1b6-aa5a99c21ced/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 08:05:05,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f48d78b-9061-487e-b1b6-aa5a99c21ced/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:05:05,906 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:05:05,906 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:05:05,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1425682976, now seen corresponding path program 1 times [2023-11-19 08:05:05,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:05:05,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293837127] [2023-11-19 08:05:05,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:05:05,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:05:05,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:06,699 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:05:06,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:05:06,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293837127] [2023-11-19 08:05:06,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293837127] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 08:05:06,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1936556196] [2023-11-19 08:05:06,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:05:06,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:05:06,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f48d78b-9061-487e-b1b6-aa5a99c21ced/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:05:06,705 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f48d78b-9061-487e-b1b6-aa5a99c21ced/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:05:06,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f48d78b-9061-487e-b1b6-aa5a99c21ced/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 08:05:06,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:06,821 INFO L262 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 60 conjunts are in the unsatisfiable core [2023-11-19 08:05:06,826 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:05:06,904 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 [2023-11-19 08:05:07,008 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 23 treesize of output 11 [2023-11-19 08:05:07,017 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-19 08:05:07,090 INFO L349 Elim1Store]: treesize reduction 15, result has 37.5 percent of original size [2023-11-19 08:05:07,090 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 39 [2023-11-19 08:05:07,109 INFO L349 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2023-11-19 08:05:07,109 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 26 [2023-11-19 08:05:07,124 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-11-19 08:05:07,221 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2023-11-19 08:05:07,261 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-19 08:05:07,261 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 1 case distinctions, treesize of input 30 treesize of output 21 [2023-11-19 08:05:07,358 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-19 08:05:07,359 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 20 [2023-11-19 08:05:07,432 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:05:07,432 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:05:07,446 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_269 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~t~0#1.base| v_ArrVal_269) |c_ULTIMATE.start_main_~l1~0#1.base|) |c_ULTIMATE.start_main_~l1~0#1.offset|) 1)) is different from false [2023-11-19 08:05:07,455 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_269 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_269) |c_ULTIMATE.start_main_~l1~0#1.base|) |c_ULTIMATE.start_main_~l1~0#1.offset|) 1)) is different from false [2023-11-19 08:05:07,472 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_269 (Array Int Int)) (v_ArrVal_268 (Array Int Int))) (or (not (= v_ArrVal_268 (let ((.cse0 (+ |c_ULTIMATE.start_main_~t~0#1.offset| 4))) (store (select |c_#memory_int| |c_ULTIMATE.start_main_~t~0#1.base|) .cse0 (select v_ArrVal_268 .cse0))))) (= 1 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~t~0#1.base| v_ArrVal_268) |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_269) |c_ULTIMATE.start_main_~t~0#1.base|) |c_ULTIMATE.start_main_~t~0#1.offset|)))) is different from false [2023-11-19 08:05:07,485 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_269 (Array Int Int)) (v_ArrVal_268 (Array Int Int))) (let ((.cse0 (+ |c_ULTIMATE.start_main_~p~0#1.offset| 4))) (or (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_268) (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~p~0#1.base|) .cse0) v_ArrVal_269) |c_ULTIMATE.start_main_~p~0#1.base|) |c_ULTIMATE.start_main_~p~0#1.offset|) 1) (not (= v_ArrVal_268 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base|) .cse0 (select v_ArrVal_268 .cse0))))))) is different from false [2023-11-19 08:05:07,513 WARN L854 $PredicateComparison]: unable to prove that (or (= 3 |c_ULTIMATE.start_main_#t~mem7#1|) (forall ((v_ArrVal_269 (Array Int Int)) (v_ArrVal_268 (Array Int Int))) (let ((.cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (or (not (= (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) .cse0 (select v_ArrVal_268 .cse0)) v_ArrVal_268)) (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_268) (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~a~0#1.base|) .cse0) v_ArrVal_269) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1))))) is different from false [2023-11-19 08:05:07,533 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse2 (store |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base|) |c_ULTIMATE.start_main_~p~0#1.offset| 3)))) (let ((.cse0 (select .cse2 |c_ULTIMATE.start_main_~a~0#1.base|))) (or (forall ((v_ArrVal_267 (Array Int Int)) (v_ArrVal_269 (Array Int Int)) (v_ArrVal_268 (Array Int Int))) (let ((.cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (or (not (= v_ArrVal_268 (store .cse0 .cse1 (select v_ArrVal_268 .cse1)))) (= (select (select (store (store .cse2 |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_268) (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_267) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1) v_ArrVal_269) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1)))) (= (select .cse0 |c_ULTIMATE.start_main_~a~0#1.offset|) 3)))) is different from false [2023-11-19 08:05:07,579 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 08:05:07,580 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 47 [2023-11-19 08:05:07,598 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 08:05:07,598 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 184 treesize of output 129 [2023-11-19 08:05:07,608 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 31 [2023-11-19 08:05:08,521 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse3 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)) (.cse6 (select |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base|)) (.cse7 (+ |c_ULTIMATE.start_main_~p~0#1.offset| 4))) (let ((.cse0 (= |c_ULTIMATE.start_main_~p~0#1.offset| |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse10 (forall ((v_ArrVal_262 (Array Int Int)) (v_arrayElimCell_24 Int) (v_arrayElimCell_23 Int) (v_ArrVal_269 (Array Int Int)) (v_ArrVal_268 (Array Int Int)) (v_arrayElimCell_22 Int)) (let ((.cse19 (let ((.cse20 (store |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_262))) (store .cse20 v_arrayElimCell_23 (store (select .cse20 v_arrayElimCell_23) |c_ULTIMATE.start_main_~t~0#1.offset| 3))))) (let ((.cse17 (select .cse19 |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse18 (store .cse19 |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_268))) (or (= (select .cse17 |c_ULTIMATE.start_main_~a~0#1.offset|) 3) (not (= v_ArrVal_268 (store .cse17 .cse3 (select v_ArrVal_268 .cse3)))) (not (= v_ArrVal_262 (store .cse6 .cse7 (select v_ArrVal_262 .cse7)))) (= (select (select (store .cse18 v_arrayElimCell_22 v_ArrVal_269) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1) (= (select (select (store .cse18 v_arrayElimCell_24 v_ArrVal_269) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1)))))) (.cse1 (forall ((v_ArrVal_262 (Array Int Int)) (v_arrayElimCell_23 Int) (v_ArrVal_269 (Array Int Int)) (v_ArrVal_268 (Array Int Int)) (v_arrayElimCell_22 Int)) (let ((.cse15 (let ((.cse16 (store |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_262))) (store .cse16 v_arrayElimCell_23 (store (select .cse16 v_arrayElimCell_23) |c_ULTIMATE.start_main_~t~0#1.offset| 3))))) (let ((.cse14 (select .cse15 |c_ULTIMATE.start_main_~a~0#1.base|))) (or (= (select .cse14 |c_ULTIMATE.start_main_~a~0#1.offset|) 3) (= |c_ULTIMATE.start_main_~a~0#1.base| v_arrayElimCell_23) (not (= v_ArrVal_268 (store .cse14 .cse3 (select v_ArrVal_268 .cse3)))) (not (= v_ArrVal_262 (store .cse6 .cse7 (select v_ArrVal_262 .cse7)))) (= (select (select (store (store .cse15 |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_268) v_arrayElimCell_22 v_ArrVal_269) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1)))))) (.cse11 (= |c_ULTIMATE.start_main_~p~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|))) (and (or .cse0 .cse1) (forall ((v_ArrVal_262 (Array Int Int))) (or (forall ((v_arrayElimCell_23 Int)) (let ((.cse4 (store |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_262))) (let ((.cse5 (store .cse4 v_arrayElimCell_23 (store (select .cse4 v_arrayElimCell_23) |c_ULTIMATE.start_main_~t~0#1.offset| 3)))) (let ((.cse2 (select .cse5 |c_ULTIMATE.start_main_~a~0#1.base|))) (or (= (select .cse2 |c_ULTIMATE.start_main_~a~0#1.offset|) 3) (forall ((v_ArrVal_268 (Array Int Int))) (or (not (= v_ArrVal_268 (store .cse2 .cse3 (select v_ArrVal_268 .cse3)))) (forall ((v_arrayElimCell_24 Int) (v_ArrVal_269 (Array Int Int))) (or (= (select (select (store (store .cse4 |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_268) v_arrayElimCell_23 v_ArrVal_269) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1) (= (select (select (store (store .cse5 |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_268) v_arrayElimCell_24 v_ArrVal_269) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1)))))))))) (not (= v_ArrVal_262 (store .cse6 .cse7 (select v_ArrVal_262 .cse7)))))) (forall ((v_ArrVal_262 (Array Int Int))) (or (forall ((v_arrayElimCell_23 Int)) (let ((.cse9 (store |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_262))) (let ((.cse8 (select (store .cse9 v_arrayElimCell_23 (store (select .cse9 v_arrayElimCell_23) |c_ULTIMATE.start_main_~t~0#1.offset| 3)) |c_ULTIMATE.start_main_~a~0#1.base|))) (or (= (select .cse8 |c_ULTIMATE.start_main_~a~0#1.offset|) 3) (= |c_ULTIMATE.start_main_~a~0#1.base| v_arrayElimCell_23) (forall ((v_ArrVal_268 (Array Int Int))) (or (not (= v_ArrVal_268 (store .cse8 .cse3 (select v_ArrVal_268 .cse3)))) (forall ((v_ArrVal_269 (Array Int Int))) (= (select (select (store (store .cse9 |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_268) v_arrayElimCell_23 v_ArrVal_269) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1)))))))) (not (= v_ArrVal_262 (store .cse6 .cse7 (select v_ArrVal_262 .cse7)))))) (or .cse10 .cse11) (or .cse0 .cse10) (or .cse1 .cse11) (forall ((v_ArrVal_262 (Array Int Int)) (v_arrayElimCell_24 Int) (v_ArrVal_269 (Array Int Int)) (v_ArrVal_268 (Array Int Int))) (let ((.cse13 (store |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_262))) (let ((.cse12 (store (select .cse13 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~t~0#1.offset| 3))) (or (= (select .cse12 |c_ULTIMATE.start_main_~a~0#1.offset|) 3) (not (= v_ArrVal_268 (store .cse12 .cse3 (select v_ArrVal_268 .cse3)))) (= (select (select (store (store .cse13 |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_268) v_arrayElimCell_24 v_ArrVal_269) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1) (not (= v_ArrVal_262 (store .cse6 .cse7 (select v_ArrVal_262 .cse7))))))))))) is different from false [2023-11-19 08:05:09,785 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse6 (select |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base|)) (.cse7 (+ |c_ULTIMATE.start_main_~p~0#1.offset| 4)) (.cse5 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (let ((.cse11 (forall ((v_ArrVal_262 (Array Int Int)) (v_arrayElimCell_24 Int) (v_arrayElimCell_23 Int) (v_ArrVal_269 (Array Int Int)) (v_ArrVal_268 (Array Int Int)) (v_arrayElimCell_22 Int)) (let ((.cse19 (let ((.cse20 (store |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_262))) (store .cse20 v_arrayElimCell_23 (store (select .cse20 v_arrayElimCell_23) 0 3))))) (let ((.cse17 (store .cse19 |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_268)) (.cse18 (select .cse19 |c_ULTIMATE.start_main_~a~0#1.base|))) (or (= (select (select (store .cse17 v_arrayElimCell_22 v_ArrVal_269) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1) (= 3 (select .cse18 |c_ULTIMATE.start_main_~a~0#1.offset|)) (= (select (select (store .cse17 v_arrayElimCell_24 v_ArrVal_269) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1) (not (= v_ArrVal_262 (store .cse6 .cse7 (select v_ArrVal_262 .cse7)))) (not (= v_ArrVal_268 (store .cse18 .cse5 (select v_ArrVal_268 .cse5))))))))) (.cse1 (= |c_ULTIMATE.start_main_~p~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse0 (forall ((v_ArrVal_262 (Array Int Int)) (v_arrayElimCell_23 Int) (v_ArrVal_269 (Array Int Int)) (v_ArrVal_268 (Array Int Int)) (v_arrayElimCell_22 Int)) (let ((.cse14 (let ((.cse16 (store |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_262))) (store .cse16 v_arrayElimCell_23 (store (select .cse16 v_arrayElimCell_23) 0 3))))) (let ((.cse15 (select .cse14 |c_ULTIMATE.start_main_~a~0#1.base|))) (or (= |c_ULTIMATE.start_main_~a~0#1.base| v_arrayElimCell_23) (= (select (select (store (store .cse14 |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_268) v_arrayElimCell_22 v_ArrVal_269) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1) (= 3 (select .cse15 |c_ULTIMATE.start_main_~a~0#1.offset|)) (not (= v_ArrVal_262 (store .cse6 .cse7 (select v_ArrVal_262 .cse7)))) (not (= v_ArrVal_268 (store .cse15 .cse5 (select v_ArrVal_268 .cse5))))))))) (.cse10 (= |c_ULTIMATE.start_main_~p~0#1.offset| |c_ULTIMATE.start_main_~a~0#1.offset|))) (and (or .cse0 .cse1) (forall ((v_ArrVal_262 (Array Int Int))) (or (forall ((v_arrayElimCell_23 Int)) (let ((.cse3 (store |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_262))) (let ((.cse4 (store .cse3 v_arrayElimCell_23 (store (select .cse3 v_arrayElimCell_23) 0 3)))) (let ((.cse2 (select .cse4 |c_ULTIMATE.start_main_~a~0#1.base|))) (or (= 3 (select .cse2 |c_ULTIMATE.start_main_~a~0#1.offset|)) (forall ((v_ArrVal_268 (Array Int Int))) (or (forall ((v_arrayElimCell_24 Int) (v_ArrVal_269 (Array Int Int))) (or (= (select (select (store (store .cse3 |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_268) v_arrayElimCell_23 v_ArrVal_269) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1) (= (select (select (store (store .cse4 |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_268) v_arrayElimCell_24 v_ArrVal_269) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1))) (not (= v_ArrVal_268 (store .cse2 .cse5 (select v_ArrVal_268 .cse5))))))))))) (not (= v_ArrVal_262 (store .cse6 .cse7 (select v_ArrVal_262 .cse7)))))) (forall ((v_ArrVal_262 (Array Int Int)) (v_arrayElimCell_24 Int) (v_ArrVal_269 (Array Int Int)) (v_ArrVal_268 (Array Int Int))) (let ((.cse9 (store |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_262))) (let ((.cse8 (store (select .cse9 |c_ULTIMATE.start_main_~a~0#1.base|) 0 3))) (or (= 3 (select .cse8 |c_ULTIMATE.start_main_~a~0#1.offset|)) (= (select (select (store (store .cse9 |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_268) v_arrayElimCell_24 v_ArrVal_269) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1) (not (= v_ArrVal_262 (store .cse6 .cse7 (select v_ArrVal_262 .cse7)))) (not (= v_ArrVal_268 (store .cse8 .cse5 (select v_ArrVal_268 .cse5)))))))) (or .cse10 .cse11) (or .cse11 .cse1) (forall ((v_ArrVal_262 (Array Int Int))) (or (forall ((v_arrayElimCell_23 Int)) (let ((.cse13 (store |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_262))) (let ((.cse12 (select (store .cse13 v_arrayElimCell_23 (store (select .cse13 v_arrayElimCell_23) 0 3)) |c_ULTIMATE.start_main_~a~0#1.base|))) (or (= |c_ULTIMATE.start_main_~a~0#1.base| v_arrayElimCell_23) (= 3 (select .cse12 |c_ULTIMATE.start_main_~a~0#1.offset|)) (forall ((v_ArrVal_268 (Array Int Int))) (or (forall ((v_ArrVal_269 (Array Int Int))) (= (select (select (store (store .cse13 |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_268) v_arrayElimCell_23 v_ArrVal_269) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1)) (not (= v_ArrVal_268 (store .cse12 .cse5 (select v_ArrVal_268 .cse5)))))))))) (not (= v_ArrVal_262 (store .cse6 .cse7 (select v_ArrVal_262 .cse7)))))) (or .cse0 .cse10)))) is different from false [2023-11-19 08:05:09,909 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:05:09,936 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 08:05:09,937 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 272 treesize of output 274 [2023-11-19 08:05:09,980 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 91 [2023-11-19 08:05:10,100 INFO L349 Elim1Store]: treesize reduction 13, result has 31.6 percent of original size [2023-11-19 08:05:10,100 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 52 treesize of output 36 [2023-11-19 08:05:10,170 INFO L349 Elim1Store]: treesize reduction 49, result has 39.5 percent of original size [2023-11-19 08:05:10,170 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 102 treesize of output 115 [2023-11-19 08:05:10,241 INFO L349 Elim1Store]: treesize reduction 34, result has 15.0 percent of original size [2023-11-19 08:05:10,247 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 45 treesize of output 27 [2023-11-19 08:05:10,314 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2023-11-19 08:05:10,314 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 18 [2023-11-19 08:05:10,323 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2023-11-19 08:05:10,333 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:05:10,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:05:10,336 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 54 [2023-11-19 08:05:10,348 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:05:10,352 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 49 treesize of output 45 [2023-11-19 08:05:10,358 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 9 treesize of output 7 [2023-11-19 08:05:10,381 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:05:10,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:05:10,384 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 40 [2023-11-19 08:05:10,389 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:05:10,391 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:05:10,393 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2023-11-19 08:05:10,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:05:10,410 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-19 08:05:10,410 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 234 treesize of output 232 [2023-11-19 08:05:10,427 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 53 [2023-11-19 08:05:10,441 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:05:10,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:05:10,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:05:10,499 INFO L349 Elim1Store]: treesize reduction 31, result has 55.1 percent of original size [2023-11-19 08:05:10,499 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 139 treesize of output 178 [2023-11-19 08:05:10,613 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:05:10,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:05:10,616 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:05:10,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:05:10,621 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 265 treesize of output 263 [2023-11-19 08:05:10,664 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 9 not checked. [2023-11-19 08:05:10,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1936556196] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 08:05:10,665 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 08:05:10,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 35 [2023-11-19 08:05:10,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217971724] [2023-11-19 08:05:10,665 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 08:05:10,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-11-19 08:05:10,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:05:10,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-11-19 08:05:10,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=614, Unknown=8, NotChecked=456, Total=1190 [2023-11-19 08:05:10,667 INFO L87 Difference]: Start difference. First operand 72 states and 88 transitions. Second operand has 35 states, 35 states have (on average 1.8) internal successors, (63), 35 states have internal predecessors, (63), 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) [2023-11-19 08:05:11,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:05:11,656 INFO L93 Difference]: Finished difference Result 98 states and 120 transitions. [2023-11-19 08:05:11,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-19 08:05:11,657 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 1.8) internal successors, (63), 35 states have internal predecessors, (63), 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 26 [2023-11-19 08:05:11,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:05:11,658 INFO L225 Difference]: With dead ends: 98 [2023-11-19 08:05:11,658 INFO L226 Difference]: Without dead ends: 96 [2023-11-19 08:05:11,659 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 32 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 8 IntricatePredicates, 0 DeprecatedPredicates, 330 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=228, Invalid=1356, Unknown=8, NotChecked=664, Total=2256 [2023-11-19 08:05:11,660 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 126 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 1138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 659 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 08:05:11,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 221 Invalid, 1138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 462 Invalid, 0 Unknown, 659 Unchecked, 0.4s Time] [2023-11-19 08:05:11,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2023-11-19 08:05:11,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 85. [2023-11-19 08:05:11,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 84 states have (on average 1.2380952380952381) internal successors, (104), 84 states have internal predecessors, (104), 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) [2023-11-19 08:05:11,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 104 transitions. [2023-11-19 08:05:11,678 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 104 transitions. Word has length 26 [2023-11-19 08:05:11,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:05:11,680 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 104 transitions. [2023-11-19 08:05:11,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 1.8) internal successors, (63), 35 states have internal predecessors, (63), 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) [2023-11-19 08:05:11,681 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 104 transitions. [2023-11-19 08:05:11,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-19 08:05:11,683 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:05:11,684 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:05:11,708 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f48d78b-9061-487e-b1b6-aa5a99c21ced/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-19 08:05:11,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f48d78b-9061-487e-b1b6-aa5a99c21ced/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-19 08:05:11,904 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:05:11,904 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:05:11,904 INFO L85 PathProgramCache]: Analyzing trace with hash 1094276958, now seen corresponding path program 2 times [2023-11-19 08:05:11,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:05:11,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101394521] [2023-11-19 08:05:11,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:05:11,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:05:11,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:11,942 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 08:05:11,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:05:11,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101394521] [2023-11-19 08:05:11,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101394521] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:05:11,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:05:11,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:05:11,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688187252] [2023-11-19 08:05:11,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:05:11,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:05:11,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:05:11,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:05:11,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:05:11,945 INFO L87 Difference]: Start difference. First operand 85 states and 104 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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) [2023-11-19 08:05:11,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:05:11,962 INFO L93 Difference]: Finished difference Result 139 states and 170 transitions. [2023-11-19 08:05:11,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:05:11,963 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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 26 [2023-11-19 08:05:11,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:05:11,963 INFO L225 Difference]: With dead ends: 139 [2023-11-19 08:05:11,964 INFO L226 Difference]: Without dead ends: 85 [2023-11-19 08:05:11,964 INFO L412 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 [2023-11-19 08:05:11,965 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 18 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:05:11,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 65 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:05:11,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2023-11-19 08:05:11,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 74. [2023-11-19 08:05:11,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 73 states have (on average 1.1643835616438356) internal successors, (85), 73 states have internal predecessors, (85), 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) [2023-11-19 08:05:11,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 85 transitions. [2023-11-19 08:05:11,974 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 85 transitions. Word has length 26 [2023-11-19 08:05:11,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:05:11,974 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 85 transitions. [2023-11-19 08:05:11,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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) [2023-11-19 08:05:11,975 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 85 transitions. [2023-11-19 08:05:11,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-19 08:05:11,976 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:05:11,976 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:05:11,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-19 08:05:11,976 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:05:11,976 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:05:11,977 INFO L85 PathProgramCache]: Analyzing trace with hash 11551797, now seen corresponding path program 1 times [2023-11-19 08:05:11,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:05:11,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922605564] [2023-11-19 08:05:11,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:05:11,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:05:11,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:12,056 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 08:05:12,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:05:12,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922605564] [2023-11-19 08:05:12,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922605564] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 08:05:12,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1474128977] [2023-11-19 08:05:12,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:05:12,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:05:12,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f48d78b-9061-487e-b1b6-aa5a99c21ced/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:05:12,058 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f48d78b-9061-487e-b1b6-aa5a99c21ced/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:05:12,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f48d78b-9061-487e-b1b6-aa5a99c21ced/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-19 08:05:12,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:12,170 INFO L262 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 59 conjunts are in the unsatisfiable core [2023-11-19 08:05:12,174 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:05:12,242 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-19 08:05:12,249 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 13 treesize of output 9 [2023-11-19 08:05:12,324 INFO L349 Elim1Store]: treesize reduction 17, result has 34.6 percent of original size [2023-11-19 08:05:12,324 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 74 treesize of output 71 [2023-11-19 08:05:12,330 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2023-11-19 08:05:12,347 INFO L349 Elim1Store]: treesize reduction 21, result has 38.2 percent of original size [2023-11-19 08:05:12,348 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 1 case distinctions, treesize of input 26 treesize of output 21 [2023-11-19 08:05:12,356 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-19 08:05:12,363 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2023-11-19 08:05:12,475 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 38 [2023-11-19 08:05:12,478 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 32 [2023-11-19 08:05:12,548 INFO L349 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-11-19 08:05:12,549 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 42 [2023-11-19 08:05:12,731 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2023-11-19 08:05:12,738 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:05:12,738 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:05:12,921 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 08:05:12,922 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 37 [2023-11-19 08:05:12,931 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 08:05:12,932 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 78 [2023-11-19 08:05:12,937 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 16 [2023-11-19 08:05:13,058 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 08:05:13,059 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 24 [2023-11-19 08:05:13,069 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 08:05:13,069 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 38 [2023-11-19 08:05:13,080 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2023-11-19 08:05:13,109 INFO L349 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2023-11-19 08:05:13,109 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 1 [2023-11-19 08:05:13,116 INFO L349 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2023-11-19 08:05:13,116 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 1 [2023-11-19 08:05:13,224 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:05:13,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1474128977] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 08:05:13,224 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 08:05:13,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 13, 12] total 23 [2023-11-19 08:05:13,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692045008] [2023-11-19 08:05:13,225 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 08:05:13,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-19 08:05:13,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:05:13,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-19 08:05:13,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=432, Unknown=1, NotChecked=0, Total=506 [2023-11-19 08:05:13,227 INFO L87 Difference]: Start difference. First operand 74 states and 85 transitions. Second operand has 23 states, 23 states have (on average 2.652173913043478) internal successors, (61), 23 states have internal predecessors, (61), 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) [2023-11-19 08:05:14,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:05:14,013 INFO L93 Difference]: Finished difference Result 97 states and 111 transitions. [2023-11-19 08:05:14,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-19 08:05:14,014 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.652173913043478) internal successors, (61), 23 states have internal predecessors, (61), 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 28 [2023-11-19 08:05:14,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:05:14,015 INFO L225 Difference]: With dead ends: 97 [2023-11-19 08:05:14,015 INFO L226 Difference]: Without dead ends: 92 [2023-11-19 08:05:14,016 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=304, Invalid=1177, Unknown=1, NotChecked=0, Total=1482 [2023-11-19 08:05:14,017 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 168 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 08:05:14,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 173 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 08:05:14,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2023-11-19 08:05:14,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 79. [2023-11-19 08:05:14,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 78 states have (on average 1.1538461538461537) internal successors, (90), 78 states have internal predecessors, (90), 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) [2023-11-19 08:05:14,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 90 transitions. [2023-11-19 08:05:14,028 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 90 transitions. Word has length 28 [2023-11-19 08:05:14,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:05:14,028 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 90 transitions. [2023-11-19 08:05:14,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.652173913043478) internal successors, (61), 23 states have internal predecessors, (61), 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) [2023-11-19 08:05:14,028 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 90 transitions. [2023-11-19 08:05:14,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-19 08:05:14,029 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:05:14,030 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:05:14,056 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f48d78b-9061-487e-b1b6-aa5a99c21ced/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-19 08:05:14,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f48d78b-9061-487e-b1b6-aa5a99c21ced/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-19 08:05:14,245 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:05:14,245 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:05:14,245 INFO L85 PathProgramCache]: Analyzing trace with hash 13261819, now seen corresponding path program 1 times [2023-11-19 08:05:14,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:05:14,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705156576] [2023-11-19 08:05:14,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:05:14,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:05:14,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:14,915 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 08:05:14,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:05:14,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705156576] [2023-11-19 08:05:14,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705156576] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 08:05:14,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [339752591] [2023-11-19 08:05:14,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:05:14,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:05:14,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f48d78b-9061-487e-b1b6-aa5a99c21ced/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:05:14,921 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f48d78b-9061-487e-b1b6-aa5a99c21ced/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:05:14,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f48d78b-9061-487e-b1b6-aa5a99c21ced/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-19 08:05:15,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:15,043 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 63 conjunts are in the unsatisfiable core [2023-11-19 08:05:15,048 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:05:15,178 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-19 08:05:15,243 INFO L349 Elim1Store]: treesize reduction 15, result has 37.5 percent of original size [2023-11-19 08:05:15,243 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 39 [2023-11-19 08:05:15,247 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 9 [2023-11-19 08:05:15,254 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-11-19 08:05:15,357 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 08:05:15,357 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 23 [2023-11-19 08:05:15,460 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 13 treesize of output 9 [2023-11-19 08:05:15,482 INFO L349 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2023-11-19 08:05:15,482 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 28 [2023-11-19 08:05:15,631 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 29 treesize of output 22 [2023-11-19 08:05:15,639 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 18 treesize of output 13 [2023-11-19 08:05:15,836 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:05:15,836 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:05:15,967 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~l1~0#1.offset| 4))) (and (forall ((v_ArrVal_461 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~t~0#1.base| v_ArrVal_461) |c_ULTIMATE.start_main_~l1~0#1.base|) .cse0) 0)) (forall ((v_ArrVal_460 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~t~0#1.base| v_ArrVal_460) |c_ULTIMATE.start_main_~l1~0#1.base|) .cse0) 0)))) is different from false [2023-11-19 08:05:15,979 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~l1~0#1.offset| 4))) (and (forall ((v_ArrVal_460 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_460) |c_ULTIMATE.start_main_~l1~0#1.base|) .cse0) 0)) (forall ((v_ArrVal_461 (Array Int Int))) (= 0 (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_461) |c_ULTIMATE.start_main_~l1~0#1.base|) .cse0))))) is different from false [2023-11-19 08:05:15,995 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 08:05:15,996 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 23 [2023-11-19 08:05:16,000 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 24 [2023-11-19 08:05:16,325 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 21 [2023-11-19 08:05:16,415 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 08:05:16,415 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 24 [2023-11-19 08:05:16,425 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 08:05:16,425 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 41 [2023-11-19 08:05:16,430 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2023-11-19 08:05:16,536 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 5 not checked. [2023-11-19 08:05:16,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [339752591] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 08:05:16,536 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 08:05:16,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 15, 15] total 35 [2023-11-19 08:05:16,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606449519] [2023-11-19 08:05:16,537 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 08:05:16,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-11-19 08:05:16,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:05:16,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-11-19 08:05:16,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=955, Unknown=2, NotChecked=126, Total=1190 [2023-11-19 08:05:16,539 INFO L87 Difference]: Start difference. First operand 79 states and 90 transitions. Second operand has 35 states, 35 states have (on average 2.0) internal successors, (70), 35 states have internal predecessors, (70), 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) [2023-11-19 08:05:17,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:05:17,506 INFO L93 Difference]: Finished difference Result 94 states and 109 transitions. [2023-11-19 08:05:17,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-19 08:05:17,507 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 2.0) internal successors, (70), 35 states have internal predecessors, (70), 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 28 [2023-11-19 08:05:17,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:05:17,508 INFO L225 Difference]: With dead ends: 94 [2023-11-19 08:05:17,508 INFO L226 Difference]: Without dead ends: 67 [2023-11-19 08:05:17,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 264 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=206, Invalid=1606, Unknown=2, NotChecked=166, Total=1980 [2023-11-19 08:05:17,510 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 57 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 106 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-19 08:05:17,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 271 Invalid, 609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 485 Invalid, 0 Unknown, 106 Unchecked, 0.5s Time] [2023-11-19 08:05:17,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2023-11-19 08:05:17,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 66. [2023-11-19 08:05:17,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 65 states have (on average 1.1538461538461537) internal successors, (75), 65 states have internal predecessors, (75), 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) [2023-11-19 08:05:17,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 75 transitions. [2023-11-19 08:05:17,518 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 75 transitions. Word has length 28 [2023-11-19 08:05:17,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:05:17,518 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 75 transitions. [2023-11-19 08:05:17,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 2.0) internal successors, (70), 35 states have internal predecessors, (70), 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) [2023-11-19 08:05:17,518 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 75 transitions. [2023-11-19 08:05:17,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 08:05:17,519 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:05:17,519 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:05:17,543 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f48d78b-9061-487e-b1b6-aa5a99c21ced/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-19 08:05:17,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f48d78b-9061-487e-b1b6-aa5a99c21ced/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-19 08:05:17,721 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:05:17,721 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:05:17,721 INFO L85 PathProgramCache]: Analyzing trace with hash -972154903, now seen corresponding path program 1 times [2023-11-19 08:05:17,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:05:17,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098125097] [2023-11-19 08:05:17,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:05:17,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:05:17,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:18,896 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:05:18,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:05:18,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098125097] [2023-11-19 08:05:18,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098125097] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 08:05:18,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [170371154] [2023-11-19 08:05:18,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:05:18,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:05:18,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f48d78b-9061-487e-b1b6-aa5a99c21ced/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:05:18,905 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f48d78b-9061-487e-b1b6-aa5a99c21ced/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:05:18,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f48d78b-9061-487e-b1b6-aa5a99c21ced/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-19 08:05:19,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:19,029 INFO L262 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 63 conjunts are in the unsatisfiable core [2023-11-19 08:05:19,034 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:05:19,039 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-19 08:05:19,136 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 [2023-11-19 08:05:19,207 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-19 08:05:19,207 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2023-11-19 08:05:19,299 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 23 treesize of output 11 [2023-11-19 08:05:19,306 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-19 08:05:19,391 INFO L349 Elim1Store]: treesize reduction 17, result has 22.7 percent of original size [2023-11-19 08:05:19,391 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 17 [2023-11-19 08:05:19,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:05:19,408 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 16 treesize of output 11 [2023-11-19 08:05:19,426 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-19 08:05:19,426 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-11-19 08:05:19,512 INFO L349 Elim1Store]: treesize reduction 31, result has 18.4 percent of original size [2023-11-19 08:05:19,512 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 83 treesize of output 57 [2023-11-19 08:05:19,521 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 24 treesize of output 11 [2023-11-19 08:05:19,694 INFO L349 Elim1Store]: treesize reduction 44, result has 25.4 percent of original size [2023-11-19 08:05:19,694 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 79 treesize of output 68 [2023-11-19 08:05:19,704 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 24 treesize of output 11 [2023-11-19 08:05:19,720 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2023-11-19 08:05:19,839 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2023-11-19 08:05:19,890 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-11-19 08:05:19,977 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 16 treesize of output 11 [2023-11-19 08:05:20,052 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:05:20,052 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:05:20,139 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_573 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_573) |c_ULTIMATE.start_main_~l1~0#1.base|) |c_ULTIMATE.start_main_~l1~0#1.offset|) 1)) is different from false [2023-11-19 08:05:20,151 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_573 (Array Int Int)) (v_ArrVal_572 (Array Int Int))) (or (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~t~0#1.base| v_ArrVal_572) |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_573) |c_ULTIMATE.start_main_~t~0#1.base|) |c_ULTIMATE.start_main_~t~0#1.offset|) 1) (not (= v_ArrVal_572 (let ((.cse0 (+ |c_ULTIMATE.start_main_~t~0#1.offset| 4))) (store (select |c_#memory_int| |c_ULTIMATE.start_main_~t~0#1.base|) .cse0 (select v_ArrVal_572 .cse0))))))) is different from false [2023-11-19 08:05:20,163 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_573 (Array Int Int)) (v_ArrVal_572 (Array Int Int))) (let ((.cse0 (+ |c_ULTIMATE.start_main_~p~0#1.offset| 4))) (or (not (= v_ArrVal_572 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base|) .cse0 (select v_ArrVal_572 .cse0)))) (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_572) (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~p~0#1.base|) .cse0) v_ArrVal_573) |c_ULTIMATE.start_main_~p~0#1.base|) |c_ULTIMATE.start_main_~p~0#1.offset|) 1)))) is different from false [2023-11-19 08:05:20,188 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_573 (Array Int Int)) (v_ArrVal_572 (Array Int Int))) (let ((.cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (or (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_572) (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~a~0#1.base|) .cse0) v_ArrVal_573) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1) (not (= v_ArrVal_572 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) .cse0 (select v_ArrVal_572 .cse0))))))) is different from false [2023-11-19 08:05:20,203 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_571 (Array Int Int)) (v_ArrVal_570 (Array Int Int)) (v_ArrVal_573 (Array Int Int)) (v_ArrVal_572 (Array Int Int))) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_570)) (.cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (or (not (= v_ArrVal_572 (store (select .cse0 |c_ULTIMATE.start_main_~a~0#1.base|) .cse1 (select v_ArrVal_572 .cse1)))) (= 1 (select (select (store (store .cse0 |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_572) (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_571) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1) v_ArrVal_573) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))))) is different from false [2023-11-19 08:05:20,240 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_568 (Array Int Int)) (v_ArrVal_571 (Array Int Int)) (v_ArrVal_570 (Array Int Int)) (v_ArrVal_573 (Array Int Int)) (|ULTIMATE.start_main_~p~0#1.offset| Int) (v_ArrVal_572 (Array Int Int))) (let ((.cse0 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_568) |c_ULTIMATE.start_main_~t~0#1.base| v_ArrVal_570)) (.cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (or (not (= (store (select .cse0 |c_ULTIMATE.start_main_~a~0#1.base|) .cse1 (select v_ArrVal_572 .cse1)) v_ArrVal_572)) (= (select (select (store (store .cse0 |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_572) (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~p~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~p~0#1.base|) (+ |ULTIMATE.start_main_~p~0#1.offset| 4) |c_ULTIMATE.start_main_~t~0#1.base|)) |c_ULTIMATE.start_main_~t~0#1.base| v_ArrVal_571) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1) v_ArrVal_573) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1)))) is different from false [2023-11-19 08:05:20,390 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 08:05:20,390 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 40 [2023-11-19 08:05:20,409 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_568 (Array Int Int)) (v_arrayElimArr_12 (Array Int Int)) (v_ArrVal_571 (Array Int Int)) (v_ArrVal_570 (Array Int Int)) (v_ArrVal_573 (Array Int Int)) (|ULTIMATE.start_main_~p~0#1.offset| Int) (v_ArrVal_572 (Array Int Int))) (let ((.cse0 (select v_arrayElimArr_12 (+ |ULTIMATE.start_main_~p~0#1.offset| 4)))) (let ((.cse1 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_568) .cse0 v_ArrVal_570)) (.cse2 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (or (not (= (select |c_#valid| .cse0) 0)) (not (= v_ArrVal_572 (store (select .cse1 |c_ULTIMATE.start_main_~a~0#1.base|) .cse2 (select v_ArrVal_572 .cse2)))) (= (select (select (store (store .cse1 |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_572) (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~p~0#1.base| v_arrayElimArr_12) .cse0 v_ArrVal_571) |c_ULTIMATE.start_main_~a~0#1.base|) .cse2) v_ArrVal_573) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1))))) is different from false [2023-11-19 08:05:20,466 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 08:05:20,466 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 53 [2023-11-19 08:05:20,496 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 08:05:20,497 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 178 treesize of output 177 [2023-11-19 08:05:20,524 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 08:05:20,524 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 200 treesize of output 164 [2023-11-19 08:05:20,537 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 118 [2023-11-19 08:05:21,675 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-11-19 08:05:21,915 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-11-19 08:05:31,006 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 08:05:31,007 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1554 treesize of output 1544 [2023-11-19 08:05:31,057 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 08:05:31,058 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 182 treesize of output 177 [2023-11-19 08:05:31,083 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 08:05:31,083 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 164 treesize of output 141 [2023-11-19 08:05:31,104 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 28 treesize of output 22 [2023-11-19 08:05:31,246 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-11-19 08:05:31,308 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-11-19 08:05:31,374 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-11-19 08:05:31,459 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:05:31,460 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:05:31,481 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 08:05:31,482 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 76 treesize of output 80 [2023-11-19 08:05:31,519 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 9 treesize of output 7 [2023-11-19 08:05:31,557 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:05:31,584 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 08:05:31,584 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 235 treesize of output 237 [2023-11-19 08:05:31,618 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 08:05:31,618 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 85 [2023-11-19 08:05:31,635 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 15 [2023-11-19 08:05:31,743 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-11-19 08:05:31,763 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-11-19 08:05:31,786 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:05:31,846 INFO L349 Elim1Store]: treesize reduction 17, result has 43.3 percent of original size [2023-11-19 08:05:31,847 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 13 [2023-11-19 08:05:31,897 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2023-11-19 08:05:31,920 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:05:31,963 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 08:05:31,964 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 235 treesize of output 237 [2023-11-19 08:05:31,996 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 08:05:31,997 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 85 [2023-11-19 08:05:32,011 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 15 [2023-11-19 08:05:32,088 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-11-19 08:05:32,149 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:05:32,210 INFO L349 Elim1Store]: treesize reduction 17, result has 43.3 percent of original size [2023-11-19 08:05:32,210 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 13 [2023-11-19 08:05:32,233 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-11-19 08:05:32,276 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2023-11-19 08:05:32,296 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:05:32,320 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 08:05:32,321 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 221 treesize of output 223 [2023-11-19 08:05:32,351 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 08:05:32,351 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 85 [2023-11-19 08:05:32,451 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-11-19 08:05:32,462 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-11-19 08:05:32,512 INFO L349 Elim1Store]: treesize reduction 33, result has 28.3 percent of original size [2023-11-19 08:05:32,512 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 13 [2023-11-19 08:05:32,562 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 08:05:32,563 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 30 [2023-11-19 08:05:32,664 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-19 08:05:32,691 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 08:05:32,691 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1554 treesize of output 1544 [2023-11-19 08:05:32,743 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 08:05:32,743 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 182 treesize of output 177 [2023-11-19 08:05:32,768 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 08:05:32,768 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 164 treesize of output 141 [2023-11-19 08:05:32,787 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 22 [2023-11-19 08:05:32,926 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-11-19 08:05:32,947 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-11-19 08:05:33,047 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-11-19 08:05:33,114 INFO L349 Elim1Store]: treesize reduction 33, result has 28.3 percent of original size [2023-11-19 08:05:33,114 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 13 [2023-11-19 08:05:33,140 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-11-19 08:05:33,206 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 08:05:33,207 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 39 [2023-11-19 08:05:33,345 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 55 [2023-11-19 08:05:33,360 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 08:05:33,361 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 6 [2023-11-19 08:05:33,364 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2023-11-19 08:05:33,371 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2023-11-19 08:05:33,376 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2023-11-19 08:05:33,391 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:05:33,391 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:05:33,407 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 08:05:33,407 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 66 [2023-11-19 08:05:33,488 INFO L349 Elim1Store]: treesize reduction 33, result has 28.3 percent of original size [2023-11-19 08:05:33,489 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 13 [2023-11-19 08:05:33,520 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-11-19 08:05:33,538 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 08:05:33,538 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 26 [2023-11-19 08:05:33,588 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 36 [2023-11-19 08:05:33,600 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2023-11-19 08:05:33,605 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-11-19 08:05:33,622 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 08:05:33,623 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 6 [2023-11-19 08:05:33,627 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2023-11-19 08:05:33,635 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:05:33,646 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 254 treesize of output 248 [2023-11-19 08:05:33,659 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 08:05:33,659 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 6 [2023-11-19 08:05:33,663 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2023-11-19 08:05:33,685 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 08:05:33,685 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 82 treesize of output 86 [2023-11-19 08:05:33,710 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 08:05:33,711 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 77 [2023-11-19 08:05:33,738 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 08:05:33,738 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 59 [2023-11-19 08:05:33,752 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 22 [2023-11-19 08:05:33,785 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-11-19 08:05:33,815 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-11-19 08:05:33,831 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-11-19 08:05:33,856 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-11-19 08:05:33,875 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 25 [2023-11-19 08:05:33,902 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:05:33,903 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:05:33,903 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:05:33,907 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 49 [2023-11-19 08:05:33,915 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2023-11-19 08:05:33,925 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-11-19 08:05:33,941 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 08:05:33,942 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 6 [2023-11-19 08:05:33,946 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2023-11-19 08:05:33,967 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:05:33,968 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:05:33,974 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 91 [2023-11-19 08:05:33,984 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 08:05:33,984 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 6 [2023-11-19 08:05:33,989 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2023-11-19 08:05:34,008 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 08:05:34,008 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 40 [2023-11-19 08:05:34,023 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 08:05:34,023 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 31 [2023-11-19 08:05:34,036 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2023-11-19 08:05:34,088 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-11-19 08:05:34,098 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2023-11-19 08:05:34,115 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:05:34,119 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:05:34,124 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 91 [2023-11-19 08:05:34,139 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 08:05:34,139 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 40 [2023-11-19 08:05:34,153 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 08:05:34,153 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 31 [2023-11-19 08:05:34,163 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2023-11-19 08:05:34,181 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-11-19 08:05:34,198 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2023-11-19 08:05:34,224 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 08:05:34,224 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 6 [2023-11-19 08:05:34,237 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2023-11-19 08:05:34,250 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:05:34,271 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 08:05:34,272 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 235 treesize of output 237 [2023-11-19 08:05:34,303 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 08:05:34,303 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 85 [2023-11-19 08:05:34,318 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2023-11-19 08:05:34,429 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-11-19 08:05:34,461 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-11-19 08:05:34,508 INFO L349 Elim1Store]: treesize reduction 33, result has 28.3 percent of original size [2023-11-19 08:05:34,509 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 13 [2023-11-19 08:05:34,548 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 08:05:34,548 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 35 [2023-11-19 08:05:34,671 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 91 [2023-11-19 08:05:34,684 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 08:05:34,685 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 40 [2023-11-19 08:05:34,705 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 08:05:34,705 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 31 [2023-11-19 08:05:34,715 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2023-11-19 08:05:34,734 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-11-19 08:05:34,754 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-11-19 08:05:34,762 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2023-11-19 08:05:34,787 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 08:05:34,788 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 6 [2023-11-19 08:05:34,793 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2023-11-19 08:05:34,797 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:05:34,801 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 49 [2023-11-19 08:05:34,811 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2023-11-19 08:05:34,817 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-11-19 08:05:34,827 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 08:05:34,828 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 6 [2023-11-19 08:05:34,833 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2023-11-19 08:05:38,715 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 16 not checked. [2023-11-19 08:05:38,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [170371154] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 08:05:38,715 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 08:05:38,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 17, 18] total 45 [2023-11-19 08:05:38,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955228754] [2023-11-19 08:05:38,716 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 08:05:38,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2023-11-19 08:05:38,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:05:38,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2023-11-19 08:05:38,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=165, Invalid=1244, Unknown=25, NotChecked=546, Total=1980 [2023-11-19 08:05:38,721 INFO L87 Difference]: Start difference. First operand 66 states and 75 transitions. Second operand has 45 states, 45 states have (on average 1.9111111111111112) internal successors, (86), 45 states have internal predecessors, (86), 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)