./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-40.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b1ebdc7-383e-4805-b38c-55af287287c2/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b1ebdc7-383e-4805-b38c-55af287287c2/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_4b1ebdc7-383e-4805-b38c-55af287287c2/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b1ebdc7-383e-4805-b38c-55af287287c2/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-40.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b1ebdc7-383e-4805-b38c-55af287287c2/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_4b1ebdc7-383e-4805-b38c-55af287287c2/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 2274e339d27706db1309e66a8dc56713dc7b235e9296f50d0c5bcd9c8dae4a5d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:01:01,213 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:01:01,314 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b1ebdc7-383e-4805-b38c-55af287287c2/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 08:01:01,320 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:01:01,320 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:01:01,346 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:01:01,347 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:01:01,348 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:01:01,348 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 08:01:01,349 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 08:01:01,350 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:01:01,351 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:01:01,351 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:01:01,352 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:01:01,353 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 08:01:01,353 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 08:01:01,354 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 08:01:01,355 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 08:01:01,355 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:01:01,356 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 08:01:01,356 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 08:01:01,357 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 08:01:01,358 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 08:01:01,358 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 08:01:01,359 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:01:01,360 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:01:01,360 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:01:01,361 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 08:01:01,361 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:01:01,362 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:01:01,362 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 08:01:01,363 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 08:01:01,363 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 08:01:01,364 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 08:01:01,364 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 08:01:01,365 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 08:01:01,365 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 08:01:01,366 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 08:01:01,366 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 08:01:01,366 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_4b1ebdc7-383e-4805-b38c-55af287287c2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b1ebdc7-383e-4805-b38c-55af287287c2/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2274e339d27706db1309e66a8dc56713dc7b235e9296f50d0c5bcd9c8dae4a5d [2023-11-19 08:01:01,728 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:01:01,763 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:01:01,766 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:01:01,768 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:01:01,769 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:01:01,770 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b1ebdc7-383e-4805-b38c-55af287287c2/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-40.i [2023-11-19 08:01:04,907 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:01:05,136 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:01:05,136 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b1ebdc7-383e-4805-b38c-55af287287c2/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-40.i [2023-11-19 08:01:05,156 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b1ebdc7-383e-4805-b38c-55af287287c2/bin/uautomizer-verify-uCwYo4JHxu/data/4ba74b74f/5ecd85d5866e4f72913839e1a39d70f8/FLAGca6a3cdc6 [2023-11-19 08:01:05,179 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b1ebdc7-383e-4805-b38c-55af287287c2/bin/uautomizer-verify-uCwYo4JHxu/data/4ba74b74f/5ecd85d5866e4f72913839e1a39d70f8 [2023-11-19 08:01:05,186 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:01:05,190 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:01:05,194 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:01:05,195 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:01:05,200 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:01:05,203 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:01:05" (1/1) ... [2023-11-19 08:01:05,205 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@108c204d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:05, skipping insertion in model container [2023-11-19 08:01:05,205 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:01:05" (1/1) ... [2023-11-19 08:01:05,254 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:01:05,454 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_4b1ebdc7-383e-4805-b38c-55af287287c2/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-40.i[917,930] [2023-11-19 08:01:05,546 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:01:05,561 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:01:05,576 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_4b1ebdc7-383e-4805-b38c-55af287287c2/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-40.i[917,930] [2023-11-19 08:01:05,627 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:01:05,656 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:01:05,657 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:05 WrapperNode [2023-11-19 08:01:05,657 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:01:05,658 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:01:05,658 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:01:05,660 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:01:05,669 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:05" (1/1) ... [2023-11-19 08:01:05,683 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:05" (1/1) ... [2023-11-19 08:01:05,737 INFO L138 Inliner]: procedures = 29, calls = 151, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 431 [2023-11-19 08:01:05,737 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:01:05,738 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:01:05,738 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:01:05,738 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:01:05,760 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:05" (1/1) ... [2023-11-19 08:01:05,760 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:05" (1/1) ... [2023-11-19 08:01:05,768 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:05" (1/1) ... [2023-11-19 08:01:05,768 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:05" (1/1) ... [2023-11-19 08:01:05,788 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:05" (1/1) ... [2023-11-19 08:01:05,793 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:05" (1/1) ... [2023-11-19 08:01:05,797 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:05" (1/1) ... [2023-11-19 08:01:05,800 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:05" (1/1) ... [2023-11-19 08:01:05,807 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:01:05,808 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:01:05,808 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:01:05,808 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:01:05,809 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:05" (1/1) ... [2023-11-19 08:01:05,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:01:05,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b1ebdc7-383e-4805-b38c-55af287287c2/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:01:05,865 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b1ebdc7-383e-4805-b38c-55af287287c2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 08:01:05,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b1ebdc7-383e-4805-b38c-55af287287c2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 08:01:05,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 08:01:05,909 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-19 08:01:05,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 08:01:05,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-19 08:01:05,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 08:01:05,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2023-11-19 08:01:05,911 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 08:01:05,911 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 08:01:05,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 08:01:05,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:01:05,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:01:06,033 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:01:06,036 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:01:06,723 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:01:06,733 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:01:06,737 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 08:01:06,745 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:01:06 BoogieIcfgContainer [2023-11-19 08:01:06,745 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:01:06,748 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 08:01:06,749 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 08:01:06,752 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 08:01:06,752 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:01:05" (1/3) ... [2023-11-19 08:01:06,753 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4951c808 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:01:06, skipping insertion in model container [2023-11-19 08:01:06,754 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:05" (2/3) ... [2023-11-19 08:01:06,755 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4951c808 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:01:06, skipping insertion in model container [2023-11-19 08:01:06,756 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:01:06" (3/3) ... [2023-11-19 08:01:06,757 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-40.i [2023-11-19 08:01:06,777 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 08:01:06,778 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 08:01:06,836 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 08:01:06,843 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;@367992ce, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 08:01:06,843 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 08:01:06,848 INFO L276 IsEmpty]: Start isEmpty. Operand has 111 states, 89 states have (on average 1.4269662921348314) internal successors, (127), 90 states have internal predecessors, (127), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-19 08:01:06,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-19 08:01:06,866 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:01:06,867 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:01:06,867 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:01:06,873 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:06,873 INFO L85 PathProgramCache]: Analyzing trace with hash -854135564, now seen corresponding path program 1 times [2023-11-19 08:01:06,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:06,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439299997] [2023-11-19 08:01:06,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:06,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:07,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:07,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:01:07,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439299997] [2023-11-19 08:01:07,159 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-19 08:01:07,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1466293381] [2023-11-19 08:01:07,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:07,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:01:07,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b1ebdc7-383e-4805-b38c-55af287287c2/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:01:07,162 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b1ebdc7-383e-4805-b38c-55af287287c2/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:01:07,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b1ebdc7-383e-4805-b38c-55af287287c2/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 08:01:07,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:07,486 INFO L262 TraceCheckSpWp]: Trace formula consists of 536 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 08:01:07,507 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:01:07,555 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2023-11-19 08:01:07,555 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:01:07,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1466293381] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:01:07,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:01:07,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:01:07,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711247103] [2023-11-19 08:01:07,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:01:07,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 08:01:07,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:01:07,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 08:01:07,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 08:01:07,608 INFO L87 Difference]: Start difference. First operand has 111 states, 89 states have (on average 1.4269662921348314) internal successors, (127), 90 states have internal predecessors, (127), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-19 08:01:07,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:01:07,645 INFO L93 Difference]: Finished difference Result 215 states and 343 transitions. [2023-11-19 08:01:07,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 08:01:07,648 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 150 [2023-11-19 08:01:07,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:01:07,662 INFO L225 Difference]: With dead ends: 215 [2023-11-19 08:01:07,662 INFO L226 Difference]: Without dead ends: 107 [2023-11-19 08:01:07,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 149 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 08:01:07,672 INFO L413 NwaCegarLoop]: 158 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, 158 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 08:01:07,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:01:07,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2023-11-19 08:01:07,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2023-11-19 08:01:07,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 86 states have (on average 1.3953488372093024) internal successors, (120), 86 states have internal predecessors, (120), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-19 08:01:07,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 158 transitions. [2023-11-19 08:01:07,750 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 158 transitions. Word has length 150 [2023-11-19 08:01:07,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:01:07,751 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 158 transitions. [2023-11-19 08:01:07,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-19 08:01:07,752 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 158 transitions. [2023-11-19 08:01:07,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-19 08:01:07,756 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:01:07,756 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:01:07,779 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b1ebdc7-383e-4805-b38c-55af287287c2/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-19 08:01:07,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b1ebdc7-383e-4805-b38c-55af287287c2/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-19 08:01:07,971 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:01:07,972 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:07,972 INFO L85 PathProgramCache]: Analyzing trace with hash 11151942, now seen corresponding path program 1 times [2023-11-19 08:01:07,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:07,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649635706] [2023-11-19 08:01:07,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:07,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:08,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:08,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:01:08,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649635706] [2023-11-19 08:01:08,169 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-19 08:01:08,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1275925873] [2023-11-19 08:01:08,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:08,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:01:08,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b1ebdc7-383e-4805-b38c-55af287287c2/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:01:08,171 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b1ebdc7-383e-4805-b38c-55af287287c2/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:01:08,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b1ebdc7-383e-4805-b38c-55af287287c2/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 08:01:08,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:08,444 INFO L262 TraceCheckSpWp]: Trace formula consists of 536 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 08:01:08,462 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:01:08,524 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 280 proven. 0 refuted. 0 times theorem prover too weak. 404 trivial. 0 not checked. [2023-11-19 08:01:08,524 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:01:08,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1275925873] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:01:08,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:01:08,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 08:01:08,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31379437] [2023-11-19 08:01:08,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:01:08,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:01:08,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:01:08,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:01:08,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:01:08,528 INFO L87 Difference]: Start difference. First operand 107 states and 158 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-19 08:01:08,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:01:08,599 INFO L93 Difference]: Finished difference Result 217 states and 322 transitions. [2023-11-19 08:01:08,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 08:01:08,600 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 150 [2023-11-19 08:01:08,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:01:08,609 INFO L225 Difference]: With dead ends: 217 [2023-11-19 08:01:08,609 INFO L226 Difference]: Without dead ends: 113 [2023-11-19 08:01:08,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 147 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 08:01:08,616 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 10 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:01:08,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 462 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:01:08,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2023-11-19 08:01:08,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 109. [2023-11-19 08:01:08,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 88 states have (on average 1.3863636363636365) internal successors, (122), 88 states have internal predecessors, (122), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-19 08:01:08,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 160 transitions. [2023-11-19 08:01:08,646 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 160 transitions. Word has length 150 [2023-11-19 08:01:08,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:01:08,651 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 160 transitions. [2023-11-19 08:01:08,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-19 08:01:08,652 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 160 transitions. [2023-11-19 08:01:08,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-19 08:01:08,660 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:01:08,660 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:01:08,678 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b1ebdc7-383e-4805-b38c-55af287287c2/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 08:01:08,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b1ebdc7-383e-4805-b38c-55af287287c2/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:01:08,869 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:01:08,870 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:08,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1950422716, now seen corresponding path program 1 times [2023-11-19 08:01:08,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:08,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5082479] [2023-11-19 08:01:08,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:08,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:08,935 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:01:08,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1441026766] [2023-11-19 08:01:08,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:08,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:01:08,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b1ebdc7-383e-4805-b38c-55af287287c2/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:01:08,937 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b1ebdc7-383e-4805-b38c-55af287287c2/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:01:08,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b1ebdc7-383e-4805-b38c-55af287287c2/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 08:01:09,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:09,200 INFO L262 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 08:01:09,220 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:01:09,261 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-11-19 08:01:09,261 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:01:09,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:01:09,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5082479] [2023-11-19 08:01:09,262 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:01:09,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1441026766] [2023-11-19 08:01:09,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1441026766] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:01:09,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:01:09,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 08:01:09,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410607828] [2023-11-19 08:01:09,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:01:09,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:01:09,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:01:09,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:01:09,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:01:09,268 INFO L87 Difference]: Start difference. First operand 109 states and 160 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-19 08:01:09,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:01:09,337 INFO L93 Difference]: Finished difference Result 223 states and 328 transitions. [2023-11-19 08:01:09,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 08:01:09,339 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 150 [2023-11-19 08:01:09,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:01:09,343 INFO L225 Difference]: With dead ends: 223 [2023-11-19 08:01:09,343 INFO L226 Difference]: Without dead ends: 117 [2023-11-19 08:01:09,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 147 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 08:01:09,348 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 12 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:01:09,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 459 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:01:09,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2023-11-19 08:01:09,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 111. [2023-11-19 08:01:09,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 90 states have (on average 1.3777777777777778) internal successors, (124), 90 states have internal predecessors, (124), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-19 08:01:09,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 162 transitions. [2023-11-19 08:01:09,377 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 162 transitions. Word has length 150 [2023-11-19 08:01:09,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:01:09,379 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 162 transitions. [2023-11-19 08:01:09,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-19 08:01:09,382 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 162 transitions. [2023-11-19 08:01:09,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-19 08:01:09,388 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:01:09,389 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:01:09,415 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b1ebdc7-383e-4805-b38c-55af287287c2/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-19 08:01:09,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b1ebdc7-383e-4805-b38c-55af287287c2/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-11-19 08:01:09,602 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:01:09,602 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:09,602 INFO L85 PathProgramCache]: Analyzing trace with hash -175415354, now seen corresponding path program 1 times [2023-11-19 08:01:09,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:09,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625409429] [2023-11-19 08:01:09,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:09,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:09,665 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:01:09,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1868807562] [2023-11-19 08:01:09,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:09,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:01:09,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b1ebdc7-383e-4805-b38c-55af287287c2/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:01:09,667 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b1ebdc7-383e-4805-b38c-55af287287c2/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:01:09,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b1ebdc7-383e-4805-b38c-55af287287c2/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-19 08:01:09,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:09,898 INFO L262 TraceCheckSpWp]: Trace formula consists of 533 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 08:01:09,902 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:01:09,931 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-11-19 08:01:09,931 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:01:09,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:01:09,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625409429] [2023-11-19 08:01:09,932 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:01:09,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1868807562] [2023-11-19 08:01:09,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1868807562] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:01:09,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:01:09,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 08:01:09,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098722738] [2023-11-19 08:01:09,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:01:09,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:01:09,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:01:09,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:01:09,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:01:09,935 INFO L87 Difference]: Start difference. First operand 111 states and 162 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-19 08:01:09,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:01:09,963 INFO L93 Difference]: Finished difference Result 223 states and 326 transitions. [2023-11-19 08:01:09,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 08:01:09,964 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 150 [2023-11-19 08:01:09,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:01:09,966 INFO L225 Difference]: With dead ends: 223 [2023-11-19 08:01:09,966 INFO L226 Difference]: Without dead ends: 115 [2023-11-19 08:01:09,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 147 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 08:01:09,967 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 3 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:01:09,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 458 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:01:09,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2023-11-19 08:01:09,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 113. [2023-11-19 08:01:09,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 92 states have (on average 1.3695652173913044) internal successors, (126), 92 states have internal predecessors, (126), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-19 08:01:09,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 164 transitions. [2023-11-19 08:01:09,977 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 164 transitions. Word has length 150 [2023-11-19 08:01:09,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:01:09,978 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 164 transitions. [2023-11-19 08:01:09,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-19 08:01:09,979 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 164 transitions. [2023-11-19 08:01:09,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-19 08:01:09,981 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:01:09,981 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:01:10,008 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b1ebdc7-383e-4805-b38c-55af287287c2/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-19 08:01:10,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b1ebdc7-383e-4805-b38c-55af287287c2/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:01:10,187 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:01:10,188 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:10,188 INFO L85 PathProgramCache]: Analyzing trace with hash -173568312, now seen corresponding path program 1 times [2023-11-19 08:01:10,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:10,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446259357] [2023-11-19 08:01:10,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:10,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:10,261 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:01:10,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2079462809] [2023-11-19 08:01:10,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:10,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:01:10,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b1ebdc7-383e-4805-b38c-55af287287c2/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:01:10,266 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b1ebdc7-383e-4805-b38c-55af287287c2/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:01:10,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b1ebdc7-383e-4805-b38c-55af287287c2/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-19 08:01:10,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:10,516 INFO L262 TraceCheckSpWp]: Trace formula consists of 528 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 08:01:10,535 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:01:10,567 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-11-19 08:01:10,568 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:01:10,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:01:10,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446259357] [2023-11-19 08:01:10,568 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:01:10,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2079462809] [2023-11-19 08:01:10,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2079462809] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:01:10,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:01:10,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 08:01:10,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183542008] [2023-11-19 08:01:10,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:01:10,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:01:10,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:01:10,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:01:10,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:01:10,572 INFO L87 Difference]: Start difference. First operand 113 states and 164 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-19 08:01:10,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:01:10,614 INFO L93 Difference]: Finished difference Result 251 states and 366 transitions. [2023-11-19 08:01:10,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 08:01:10,615 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 150 [2023-11-19 08:01:10,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:01:10,619 INFO L225 Difference]: With dead ends: 251 [2023-11-19 08:01:10,619 INFO L226 Difference]: Without dead ends: 141 [2023-11-19 08:01:10,619 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 147 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 08:01:10,620 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 48 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:01:10,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 452 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:01:10,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2023-11-19 08:01:10,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 115. [2023-11-19 08:01:10,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 94 states have (on average 1.3617021276595744) internal successors, (128), 94 states have internal predecessors, (128), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-19 08:01:10,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 166 transitions. [2023-11-19 08:01:10,639 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 166 transitions. Word has length 150 [2023-11-19 08:01:10,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:01:10,640 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 166 transitions. [2023-11-19 08:01:10,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-19 08:01:10,641 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 166 transitions. [2023-11-19 08:01:10,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-11-19 08:01:10,643 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:01:10,643 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:01:10,672 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b1ebdc7-383e-4805-b38c-55af287287c2/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-19 08:01:10,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b1ebdc7-383e-4805-b38c-55af287287c2/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:01:10,859 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:01:10,859 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:10,860 INFO L85 PathProgramCache]: Analyzing trace with hash 429648383, now seen corresponding path program 1 times [2023-11-19 08:01:10,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:10,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554936014] [2023-11-19 08:01:10,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:10,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:10,930 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:01:10,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1349178345] [2023-11-19 08:01:10,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:10,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:01:10,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b1ebdc7-383e-4805-b38c-55af287287c2/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:01:10,932 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b1ebdc7-383e-4805-b38c-55af287287c2/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:01:10,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b1ebdc7-383e-4805-b38c-55af287287c2/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-19 08:01:11,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:11,408 INFO L262 TraceCheckSpWp]: Trace formula consists of 551 conjuncts, 82 conjunts are in the unsatisfiable core [2023-11-19 08:01:11,420 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:01:15,628 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 08:01:16,609 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 25 treesize of output 13 [2023-11-19 08:01:17,802 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 34 treesize of output 25 [2023-11-19 08:01:18,484 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 34 treesize of output 25 [2023-11-19 08:01:19,366 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 34 treesize of output 25 [2023-11-19 08:01:20,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:20,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:20,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:20,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:20,371 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 25 [2023-11-19 08:01:20,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:20,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:20,399 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 34 treesize of output 25 [2023-11-19 08:01:20,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:20,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:20,430 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 34 treesize of output 25 [2023-11-19 08:01:20,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:20,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:20,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:20,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:20,466 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 25 [2023-11-19 08:01:20,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:20,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:20,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:20,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:20,514 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 25 [2023-11-19 08:01:20,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:20,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:20,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:20,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:20,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:20,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:20,561 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 10 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 25 [2023-11-19 08:01:20,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:20,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:20,774 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 46 treesize of output 38 [2023-11-19 08:01:20,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:20,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:20,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:20,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:20,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:20,942 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 41 [2023-11-19 08:01:21,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:21,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:21,326 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 52 [2023-11-19 08:01:21,400 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 312 proven. 160 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2023-11-19 08:01:21,401 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:01:22,305 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_685 Int) (v_ArrVal_681 Int) (v_ArrVal_684 (Array Int Int)) (v_ArrVal_688 Int)) (or (let ((.cse0 (let ((.cse1 (let ((.cse2 (let ((.cse3 (let ((.cse4 (store |c_#memory_int| c_~WrapperStruct00_var_1_19_Pointer~0.base v_ArrVal_684))) (store .cse4 c_~WrapperStruct00_var_1_20_Pointer~0.base (store (select .cse4 c_~WrapperStruct00_var_1_20_Pointer~0.base) c_~WrapperStruct00_var_1_20_Pointer~0.offset v_ArrVal_685))))) (store .cse3 c_~WrapperStruct00_var_1_21_Pointer~0.base (store (select .cse3 c_~WrapperStruct00_var_1_21_Pointer~0.base) c_~WrapperStruct00_var_1_21_Pointer~0.offset v_ArrVal_681))))) (store .cse2 c_~WrapperStruct00_var_1_7_Pointer~0.base (store (select .cse2 c_~WrapperStruct00_var_1_7_Pointer~0.base) c_~WrapperStruct00_var_1_7_Pointer~0.offset (+ (mod (select (select .cse2 c_~WrapperStruct00_var_1_11_Pointer~0.base) c_~WrapperStruct00_var_1_11_Pointer~0.offset) 256) (* (- 1) (mod (select (select .cse2 c_~WrapperStruct00_var_1_12_Pointer~0.base) c_~WrapperStruct00_var_1_12_Pointer~0.offset) 256)))))))) (store .cse1 c_~WrapperStruct00_var_1_13_Pointer~0.base (store (select .cse1 c_~WrapperStruct00_var_1_13_Pointer~0.base) c_~WrapperStruct00_var_1_13_Pointer~0.offset v_ArrVal_688))))) (= (mod (select (select .cse0 c_~WrapperStruct00_var_1_7_Pointer~0.base) c_~WrapperStruct00_var_1_7_Pointer~0.offset) 256) (mod (+ (* 255 (select (select .cse0 c_~WrapperStruct00_var_1_12_Pointer~0.base) c_~WrapperStruct00_var_1_12_Pointer~0.offset)) (select (select .cse0 c_~WrapperStruct00_var_1_11_Pointer~0.base) c_~WrapperStruct00_var_1_11_Pointer~0.offset)) 256))) (not (= v_ArrVal_684 (store (select |c_#memory_int| c_~WrapperStruct00_var_1_19_Pointer~0.base) c_~WrapperStruct00_var_1_19_Pointer~0.offset (select v_ArrVal_684 c_~WrapperStruct00_var_1_19_Pointer~0.offset)))))) is different from false [2023-11-19 08:01:22,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:01:22,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554936014] [2023-11-19 08:01:22,466 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:01:22,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1349178345] [2023-11-19 08:01:22,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1349178345] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 08:01:22,467 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-19 08:01:22,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2023-11-19 08:01:22,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035102034] [2023-11-19 08:01:22,467 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-19 08:01:22,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-19 08:01:22,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:01:22,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-19 08:01:22,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=548, Unknown=1, NotChecked=48, Total=702 [2023-11-19 08:01:22,471 INFO L87 Difference]: Start difference. First operand 115 states and 166 transitions. Second operand has 20 states, 18 states have (on average 4.222222222222222) internal successors, (76), 19 states have internal predecessors, (76), 6 states have call successors, (19), 4 states have call predecessors, (19), 6 states have return successors, (19), 4 states have call predecessors, (19), 6 states have call successors, (19) [2023-11-19 08:01:26,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:01:26,701 INFO L93 Difference]: Finished difference Result 441 states and 629 transitions. [2023-11-19 08:01:26,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-11-19 08:01:26,702 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 4.222222222222222) internal successors, (76), 19 states have internal predecessors, (76), 6 states have call successors, (19), 4 states have call predecessors, (19), 6 states have return successors, (19), 4 states have call predecessors, (19), 6 states have call successors, (19) Word has length 153 [2023-11-19 08:01:26,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:01:26,706 INFO L225 Difference]: With dead ends: 441 [2023-11-19 08:01:26,707 INFO L226 Difference]: Without dead ends: 329 [2023-11-19 08:01:26,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 485 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=420, Invalid=1745, Unknown=1, NotChecked=90, Total=2256 [2023-11-19 08:01:26,712 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 689 mSDsluCounter, 894 mSDsCounter, 0 mSdLazyCounter, 1385 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 703 SdHoareTripleChecker+Valid, 981 SdHoareTripleChecker+Invalid, 1411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-19 08:01:26,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [703 Valid, 981 Invalid, 1411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1385 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-19 08:01:26,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2023-11-19 08:01:26,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 221. [2023-11-19 08:01:26,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 188 states have (on average 1.3936170212765957) internal successors, (262), 189 states have internal predecessors, (262), 29 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2023-11-19 08:01:26,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 320 transitions. [2023-11-19 08:01:26,760 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 320 transitions. Word has length 153 [2023-11-19 08:01:26,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:01:26,761 INFO L495 AbstractCegarLoop]: Abstraction has 221 states and 320 transitions. [2023-11-19 08:01:26,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 4.222222222222222) internal successors, (76), 19 states have internal predecessors, (76), 6 states have call successors, (19), 4 states have call predecessors, (19), 6 states have return successors, (19), 4 states have call predecessors, (19), 6 states have call successors, (19) [2023-11-19 08:01:26,762 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 320 transitions. [2023-11-19 08:01:26,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-11-19 08:01:26,773 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:01:26,773 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:01:26,805 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b1ebdc7-383e-4805-b38c-55af287287c2/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-19 08:01:26,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b1ebdc7-383e-4805-b38c-55af287287c2/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:01:27,000 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:01:27,001 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:27,001 INFO L85 PathProgramCache]: Analyzing trace with hash -591419971, now seen corresponding path program 1 times [2023-11-19 08:01:27,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:27,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35548525] [2023-11-19 08:01:27,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:27,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:27,051 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:01:27,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1771078519] [2023-11-19 08:01:27,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:27,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:01:27,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b1ebdc7-383e-4805-b38c-55af287287c2/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:01:27,053 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b1ebdc7-383e-4805-b38c-55af287287c2/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:01:27,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b1ebdc7-383e-4805-b38c-55af287287c2/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-19 08:01:27,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:27,402 INFO L262 TraceCheckSpWp]: Trace formula consists of 549 conjuncts, 95 conjunts are in the unsatisfiable core [2023-11-19 08:01:27,415 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:01:27,880 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 25 treesize of output 13 [2023-11-19 08:01:29,028 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 25 treesize of output 13 [2023-11-19 08:01:30,048 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 25 treesize of output 13 [2023-11-19 08:01:31,847 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 33 treesize of output 24 [2023-11-19 08:01:33,702 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 35 [2023-11-19 08:01:34,694 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 35 [2023-11-19 08:01:35,732 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 35 [2023-11-19 08:01:36,535 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 35 [2023-11-19 08:01:37,618 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 35 [2023-11-19 08:01:38,852 INFO L349 Elim1Store]: treesize reduction 88, result has 17.0 percent of original size [2023-11-19 08:01:38,853 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 356 treesize of output 266 [2023-11-19 08:01:38,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:38,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:38,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:38,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:38,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:38,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:38,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:39,026 INFO L349 Elim1Store]: treesize reduction 46, result has 39.5 percent of original size [2023-11-19 08:01:39,027 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 67 treesize of output 185 [2023-11-19 08:01:39,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:39,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:39,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:39,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:39,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:39,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:39,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:39,324 INFO L349 Elim1Store]: treesize reduction 184, result has 18.2 percent of original size [2023-11-19 08:01:39,325 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 67 treesize of output 194 [2023-11-19 08:01:40,008 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 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 72 treesize of output 54 [2023-11-19 08:01:40,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:40,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:40,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:40,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:40,029 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 33 [2023-11-19 08:01:40,066 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 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 72 treesize of output 54 [2023-11-19 08:01:40,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:40,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:40,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:40,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:40,106 INFO L349 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2023-11-19 08:01:40,106 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 33 [2023-11-19 08:01:40,284 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 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 26 [2023-11-19 08:01:40,373 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 31 [2023-11-19 08:01:40,386 INFO L349 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2023-11-19 08:01:40,386 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 31 treesize of output 9 [2023-11-19 08:01:40,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:40,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:40,459 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 25 treesize of output 33 [2023-11-19 08:01:40,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:40,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:40,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:40,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:40,593 INFO L349 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2023-11-19 08:01:40,594 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 47 [2023-11-19 08:01:40,916 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 23 [2023-11-19 08:01:40,925 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2023-11-19 08:01:41,501 INFO L349 Elim1Store]: treesize reduction 58, result has 23.7 percent of original size [2023-11-19 08:01:41,502 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 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 97 treesize of output 108 [2023-11-19 08:01:41,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:41,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:41,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:41,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:41,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:41,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:41,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:41,554 INFO L349 Elim1Store]: treesize reduction 30, result has 38.8 percent of original size [2023-11-19 08:01:41,554 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 111 [2023-11-19 08:01:41,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:41,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:41,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:41,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:41,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:41,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:41,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:41,810 INFO L349 Elim1Store]: treesize reduction 123, result has 19.6 percent of original size [2023-11-19 08:01:41,811 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 50 treesize of output 120 [2023-11-19 08:01:42,296 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 35 [2023-11-19 08:01:42,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:42,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:42,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:42,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:42,324 INFO L349 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2023-11-19 08:01:42,325 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 35 treesize of output 50 [2023-11-19 08:01:43,179 INFO L349 Elim1Store]: treesize reduction 129, result has 12.2 percent of original size [2023-11-19 08:01:43,180 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 238 treesize of output 223 [2023-11-19 08:01:43,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:43,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:43,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:43,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:43,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:43,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:43,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:43,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:43,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:43,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:43,294 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:01:43,355 INFO L349 Elim1Store]: treesize reduction 46, result has 39.5 percent of original size [2023-11-19 08:01:43,355 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 3 select indices, 3 select index equivalence classes, 14 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 239 [2023-11-19 08:01:43,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:43,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:43,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:43,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:43,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:43,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:43,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:43,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:43,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:43,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:43,943 INFO L349 Elim1Store]: treesize reduction 260, result has 13.3 percent of original size [2023-11-19 08:01:43,943 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 4 select indices, 4 select index equivalence classes, 14 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 88 treesize of output 258 [2023-11-19 08:01:45,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:45,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:45,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:45,186 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:01:45,202 INFO L349 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2023-11-19 08:01:45,203 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 83 treesize of output 65 [2023-11-19 08:01:45,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:45,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:45,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:45,290 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:01:45,293 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:01:45,299 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:01:45,302 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 65 [2023-11-19 08:01:45,995 INFO L349 Elim1Store]: treesize reduction 96, result has 41.8 percent of original size [2023-11-19 08:01:45,996 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 1179 treesize of output 1137 [2023-11-19 08:01:46,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:46,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:46,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:46,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:46,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:46,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:46,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:46,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:46,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:46,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:46,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:46,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:46,403 INFO L349 Elim1Store]: treesize reduction 119, result has 10.5 percent of original size [2023-11-19 08:01:46,404 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 7 select indices, 7 select index equivalence classes, 16 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 11 case distinctions, treesize of input 92 treesize of output 128