./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/list-properties/list_search-1.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version 7b2dab56
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ceecd17-af98-44f3-8173-4c6f2dfb9af3/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ceecd17-af98-44f3-8173-4c6f2dfb9af3/bin/uautomizer-Z5i5R5N3CC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ceecd17-af98-44f3-8173-4c6f2dfb9af3/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ceecd17-af98-44f3-8173-4c6f2dfb9af3/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/list-properties/list_search-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ceecd17-af98-44f3-8173-4c6f2dfb9af3/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ceecd17-af98-44f3-8173-4c6f2dfb9af3/bin/uautomizer-Z5i5R5N3CC --witnessprinter.witness.filename witness.graphml --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 04611f7cb9bdc3bfbd4f2358731c54027c595e1d
..........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
Execution finished normally
Writing output log to file Ultimate.log
Writing human readable error path to file UltimateCounterExample.errorpath
Result:
FALSE
--- Real Ultimate output ---
This is Ultimate 0.2.0-7b2dab5
[2021-10-11 00:23:42,146 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-10-11 00:23:42,148 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2021-10-11 00:23:42,186 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-10-11 00:23:42,187 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-10-11 00:23:42,189 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-10-11 00:23:42,190 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-10-11 00:23:42,193 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2021-10-11 00:23:42,195 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-10-11 00:23:42,197 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-10-11 00:23:42,198 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2021-10-11 00:23:42,200 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-10-11 00:23:42,200 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-10-11 00:23:42,202 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-10-11 00:23:42,203 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-10-11 00:23:42,205 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-10-11 00:23:42,206 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-10-11 00:23:42,207 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-10-11 00:23:42,217 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-10-11 00:23:42,220 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2021-10-11 00:23:42,222 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-10-11 00:23:42,226 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-10-11 00:23:42,228 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2021-10-11 00:23:42,230 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-10-11 00:23:42,235 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-10-11 00:23:42,236 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-10-11 00:23:42,236 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-10-11 00:23:42,243 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-10-11 00:23:42,244 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-10-11 00:23:42,245 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-10-11 00:23:42,246 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-10-11 00:23:42,247 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-10-11 00:23:42,249 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-10-11 00:23:42,250 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2021-10-11 00:23:42,252 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-10-11 00:23:42,252 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2021-10-11 00:23:42,253 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-10-11 00:23:42,253 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-10-11 00:23:42,254 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2021-10-11 00:23:42,255 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2021-10-11 00:23:42,255 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2021-10-11 00:23:42,258 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ceecd17-af98-44f3-8173-4c6f2dfb9af3/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf
[2021-10-11 00:23:42,304 INFO L113 SettingsManager]: Loading preferences was successful
[2021-10-11 00:23:42,304 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-10-11 00:23:42,306 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-10-11 00:23:42,306 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2021-10-11 00:23:42,307 INFO L138 SettingsManager]: * Use SBE=true
[2021-10-11 00:23:42,307 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-10-11 00:23:42,307 INFO L138 SettingsManager]: * sizeof long=4
[2021-10-11 00:23:42,307 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2021-10-11 00:23:42,308 INFO L138 SettingsManager]: * sizeof POINTER=4
[2021-10-11 00:23:42,308 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-10-11 00:23:42,309 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2021-10-11 00:23:42,309 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-10-11 00:23:42,309 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2021-10-11 00:23:42,310 INFO L138 SettingsManager]: * sizeof long double=12
[2021-10-11 00:23:42,310 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2021-10-11 00:23:42,310 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-10-11 00:23:42,310 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2021-10-11 00:23:42,311 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-10-11 00:23:42,311 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2021-10-11 00:23:42,311 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2021-10-11 00:23:42,311 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-10-11 00:23:42,312 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-10-11 00:23:42,312 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2021-10-11 00:23:42,312 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-10-11 00:23:42,312 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2021-10-11 00:23:42,312 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-10-11 00:23:42,313 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-10-11 00:23:42,313 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2021-10-11 00:23:42,313 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
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_9ceecd17-af98-44f3-8173-4c6f2dfb9af3/bin/uautomizer-Z5i5R5N3CC/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ceecd17-af98-44f3-8173-4c6f2dfb9af3/bin/uautomizer-Z5i5R5N3CC
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 04611f7cb9bdc3bfbd4f2358731c54027c595e1d
[2021-10-11 00:23:42,566 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-10-11 00:23:42,596 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-10-11 00:23:42,600 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-10-11 00:23:42,601 INFO L271 PluginConnector]: Initializing CDTParser...
[2021-10-11 00:23:42,602 INFO L275 PluginConnector]: CDTParser initialized
[2021-10-11 00:23:42,603 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ceecd17-af98-44f3-8173-4c6f2dfb9af3/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/list-properties/list_search-1.i
[2021-10-11 00:23:42,662 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ceecd17-af98-44f3-8173-4c6f2dfb9af3/bin/uautomizer-Z5i5R5N3CC/data/cc4cf4e22/14aefd604eea436ead0ce7e07452bd55/FLAG89f8c2c4f
[2021-10-11 00:23:43,216 INFO L306 CDTParser]: Found 1 translation units.
[2021-10-11 00:23:43,217 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ceecd17-af98-44f3-8173-4c6f2dfb9af3/sv-benchmarks/c/list-properties/list_search-1.i
[2021-10-11 00:23:43,230 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ceecd17-af98-44f3-8173-4c6f2dfb9af3/bin/uautomizer-Z5i5R5N3CC/data/cc4cf4e22/14aefd604eea436ead0ce7e07452bd55/FLAG89f8c2c4f
[2021-10-11 00:23:43,532 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ceecd17-af98-44f3-8173-4c6f2dfb9af3/bin/uautomizer-Z5i5R5N3CC/data/cc4cf4e22/14aefd604eea436ead0ce7e07452bd55
[2021-10-11 00:23:43,534 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-10-11 00:23:43,535 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2021-10-11 00:23:43,537 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-10-11 00:23:43,542 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-10-11 00:23:43,545 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2021-10-11 00:23:43,546 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:23:43" (1/1) ...
[2021-10-11 00:23:43,548 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55cd82e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:43, skipping insertion in model container
[2021-10-11 00:23:43,549 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:23:43" (1/1) ...
[2021-10-11 00:23:43,556 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2021-10-11 00:23:43,601 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-10-11 00:23:43,778 WARN L226 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_9ceecd17-af98-44f3-8173-4c6f2dfb9af3/sv-benchmarks/c/list-properties/list_search-1.i[813,826]
[2021-10-11 00:23:43,953 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-10-11 00:23:43,967 INFO L203 MainTranslator]: Completed pre-run
[2021-10-11 00:23:43,981 WARN L226 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_9ceecd17-af98-44f3-8173-4c6f2dfb9af3/sv-benchmarks/c/list-properties/list_search-1.i[813,826]
[2021-10-11 00:23:44,025 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-10-11 00:23:44,081 INFO L208 MainTranslator]: Completed translation
[2021-10-11 00:23:44,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:44 WrapperNode
[2021-10-11 00:23:44,082 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-10-11 00:23:44,083 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-10-11 00:23:44,083 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-10-11 00:23:44,083 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2021-10-11 00:23:44,091 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:44" (1/1) ...
[2021-10-11 00:23:44,110 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:44" (1/1) ...
[2021-10-11 00:23:44,145 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-10-11 00:23:44,146 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-10-11 00:23:44,147 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2021-10-11 00:23:44,147 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2021-10-11 00:23:44,157 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:44" (1/1) ...
[2021-10-11 00:23:44,157 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:44" (1/1) ...
[2021-10-11 00:23:44,164 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:44" (1/1) ...
[2021-10-11 00:23:44,166 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:44" (1/1) ...
[2021-10-11 00:23:44,183 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:44" (1/1) ...
[2021-10-11 00:23:44,189 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:44" (1/1) ...
[2021-10-11 00:23:44,192 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:44" (1/1) ...
[2021-10-11 00:23:44,195 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-10-11 00:23:44,196 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-10-11 00:23:44,196 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2021-10-11 00:23:44,196 INFO L275 PluginConnector]: RCFGBuilder initialized
[2021-10-11 00:23:44,197 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:44" (1/1) ...
No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ceecd17-af98-44f3-8173-4c6f2dfb9af3/bin/uautomizer-Z5i5R5N3CC/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-10-11 00:23:44,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2021-10-11 00:23:44,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2021-10-11 00:23:44,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2021-10-11 00:23:44,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2021-10-11 00:23:44,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-10-11 00:23:44,291 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2021-10-11 00:23:44,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2021-10-11 00:23:44,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2021-10-11 00:23:44,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-10-11 00:23:44,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-10-11 00:23:44,853 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-10-11 00:23:44,854 INFO L299 CfgBuilder]: Removed 18 assume(true) statements.
[2021-10-11 00:23:44,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:23:44 BoogieIcfgContainer
[2021-10-11 00:23:44,855 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-10-11 00:23:44,858 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-10-11 00:23:44,858 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2021-10-11 00:23:44,864 INFO L275 PluginConnector]: TraceAbstraction initialized
[2021-10-11 00:23:44,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:23:43" (1/3) ...
[2021-10-11 00:23:44,865 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55d2f775 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:23:44, skipping insertion in model container
[2021-10-11 00:23:44,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:44" (2/3) ...
[2021-10-11 00:23:44,866 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55d2f775 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:23:44, skipping insertion in model container
[2021-10-11 00:23:44,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:23:44" (3/3) ...
[2021-10-11 00:23:44,867 INFO L111 eAbstractionObserver]: Analyzing ICFG list_search-1.i
[2021-10-11 00:23:44,882 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-10-11 00:23:44,886 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2021-10-11 00:23:44,896 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2021-10-11 00:23:44,919 INFO L377 AbstractCegarLoop]: Interprodecural is true
[2021-10-11 00:23:44,920 INFO L378 AbstractCegarLoop]: Hoare is true
[2021-10-11 00:23:44,920 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP
[2021-10-11 00:23:44,920 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2021-10-11 00:23:44,920 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2021-10-11 00:23:44,920 INFO L382 AbstractCegarLoop]: Difference is false
[2021-10-11 00:23:44,921 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2021-10-11 00:23:44,921 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2021-10-11 00:23:44,932 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states.
[2021-10-11 00:23:44,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2021-10-11 00:23:44,937 INFO L414 BasicCegarLoop]: Found error trace
[2021-10-11 00:23:44,937 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-11 00:23:44,938 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-10-11 00:23:44,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-11 00:23:44,944 INFO L82 PathProgramCache]: Analyzing trace with hash -332178203, now seen corresponding path program 1 times
[2021-10-11 00:23:44,952 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-11 00:23:44,953 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735022252]
[2021-10-11 00:23:44,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-11 00:23:45,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:23:45,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-11 00:23:45,198 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735022252]
[2021-10-11 00:23:45,199 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-11 00:23:45,200 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2021-10-11 00:23:45,200 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906794897]
[2021-10-11 00:23:45,205 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states
[2021-10-11 00:23:45,205 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-11 00:23:45,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-10-11 00:23:45,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-10-11 00:23:45,225 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 4 states.
[2021-10-11 00:23:45,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-11 00:23:45,344 INFO L93 Difference]: Finished difference Result 49 states and 67 transitions.
[2021-10-11 00:23:45,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2021-10-11 00:23:45,346 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19
[2021-10-11 00:23:45,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-11 00:23:45,368 INFO L225 Difference]: With dead ends: 49
[2021-10-11 00:23:45,371 INFO L226 Difference]: Without dead ends: 22
[2021-10-11 00:23:45,374 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2021-10-11 00:23:45,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states.
[2021-10-11 00:23:45,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22.
[2021-10-11 00:23:45,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states.
[2021-10-11 00:23:45,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions.
[2021-10-11 00:23:45,413 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 19
[2021-10-11 00:23:45,413 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-11 00:23:45,414 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions.
[2021-10-11 00:23:45,414 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2021-10-11 00:23:45,414 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions.
[2021-10-11 00:23:45,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2021-10-11 00:23:45,415 INFO L414 BasicCegarLoop]: Found error trace
[2021-10-11 00:23:45,416 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-11 00:23:45,416 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-10-11 00:23:45,417 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-10-11 00:23:45,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-11 00:23:45,419 INFO L82 PathProgramCache]: Analyzing trace with hash -1321983588, now seen corresponding path program 1 times
[2021-10-11 00:23:45,419 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-11 00:23:45,419 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304301096]
[2021-10-11 00:23:45,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-11 00:23:45,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:23:45,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-11 00:23:45,663 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304301096]
[2021-10-11 00:23:45,663 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-11 00:23:45,663 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2021-10-11 00:23:45,664 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250308566]
[2021-10-11 00:23:45,665 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states
[2021-10-11 00:23:45,665 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-11 00:23:45,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-10-11 00:23:45,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2021-10-11 00:23:45,666 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand 6 states.
[2021-10-11 00:23:45,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-11 00:23:45,810 INFO L93 Difference]: Finished difference Result 38 states and 42 transitions.
[2021-10-11 00:23:45,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2021-10-11 00:23:45,811 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21
[2021-10-11 00:23:45,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-11 00:23:45,812 INFO L225 Difference]: With dead ends: 38
[2021-10-11 00:23:45,812 INFO L226 Difference]: Without dead ends: 30
[2021-10-11 00:23:45,813 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72
[2021-10-11 00:23:45,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states.
[2021-10-11 00:23:45,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 24.
[2021-10-11 00:23:45,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states.
[2021-10-11 00:23:45,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions.
[2021-10-11 00:23:45,819 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 21
[2021-10-11 00:23:45,820 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-11 00:23:45,820 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions.
[2021-10-11 00:23:45,820 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states.
[2021-10-11 00:23:45,820 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions.
[2021-10-11 00:23:45,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2021-10-11 00:23:45,821 INFO L414 BasicCegarLoop]: Found error trace
[2021-10-11 00:23:45,821 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-11 00:23:45,821 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2021-10-11 00:23:45,822 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-10-11 00:23:45,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-11 00:23:45,822 INFO L82 PathProgramCache]: Analyzing trace with hash -1379241890, now seen corresponding path program 1 times
[2021-10-11 00:23:45,823 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-11 00:23:45,823 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710032166]
[2021-10-11 00:23:45,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-11 00:23:45,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:23:45,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-11 00:23:45,953 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710032166]
[2021-10-11 00:23:45,953 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-11 00:23:45,954 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2021-10-11 00:23:45,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050000620]
[2021-10-11 00:23:45,954 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states
[2021-10-11 00:23:45,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-11 00:23:45,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2021-10-11 00:23:45,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2021-10-11 00:23:45,956 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand 7 states.
[2021-10-11 00:23:46,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-11 00:23:46,105 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions.
[2021-10-11 00:23:46,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2021-10-11 00:23:46,106 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21
[2021-10-11 00:23:46,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-11 00:23:46,107 INFO L225 Difference]: With dead ends: 30
[2021-10-11 00:23:46,107 INFO L226 Difference]: Without dead ends: 25
[2021-10-11 00:23:46,108 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110
[2021-10-11 00:23:46,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states.
[2021-10-11 00:23:46,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25.
[2021-10-11 00:23:46,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states.
[2021-10-11 00:23:46,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions.
[2021-10-11 00:23:46,113 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 21
[2021-10-11 00:23:46,114 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-11 00:23:46,114 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions.
[2021-10-11 00:23:46,114 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states.
[2021-10-11 00:23:46,114 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions.
[2021-10-11 00:23:46,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25
[2021-10-11 00:23:46,115 INFO L414 BasicCegarLoop]: Found error trace
[2021-10-11 00:23:46,115 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-11 00:23:46,116 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2021-10-11 00:23:46,116 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-10-11 00:23:46,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-11 00:23:46,117 INFO L82 PathProgramCache]: Analyzing trace with hash -633881513, now seen corresponding path program 1 times
[2021-10-11 00:23:46,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-11 00:23:46,117 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786161666]
[2021-10-11 00:23:46,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-11 00:23:46,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:23:46,278 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-11 00:23:46,279 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786161666]
[2021-10-11 00:23:46,280 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2017159671]
[2021-10-11 00:23:46,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ceecd17-af98-44f3-8173-4c6f2dfb9af3/bin/uautomizer-Z5i5R5N3CC/z3
Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-11 00:23:46,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:23:46,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 20 conjunts are in the unsatisfiable core
[2021-10-11 00:23:46,398 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-11 00:23:46,503 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9
[2021-10-11 00:23:46,504 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:46,510 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-10-11 00:23:46,511 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:46,512 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:10
[2021-10-11 00:23:46,555 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8
[2021-10-11 00:23:46,556 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:46,558 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-10-11 00:23:46,559 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:46,559 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:20, output treesize:4
[2021-10-11 00:23:46,569 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-11 00:23:46,569 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-10-11 00:23:46,569 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 14
[2021-10-11 00:23:46,570 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252058140]
[2021-10-11 00:23:46,570 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states
[2021-10-11 00:23:46,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-11 00:23:46,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2021-10-11 00:23:46,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182
[2021-10-11 00:23:46,572 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand 14 states.
[2021-10-11 00:23:46,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-11 00:23:46,962 INFO L93 Difference]: Finished difference Result 45 states and 49 transitions.
[2021-10-11 00:23:46,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2021-10-11 00:23:46,963 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 24
[2021-10-11 00:23:46,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-11 00:23:46,966 INFO L225 Difference]: With dead ends: 45
[2021-10-11 00:23:46,966 INFO L226 Difference]: Without dead ends: 37
[2021-10-11 00:23:46,967 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=159, Invalid=347, Unknown=0, NotChecked=0, Total=506
[2021-10-11 00:23:46,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states.
[2021-10-11 00:23:46,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 27.
[2021-10-11 00:23:46,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states.
[2021-10-11 00:23:46,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions.
[2021-10-11 00:23:46,982 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 24
[2021-10-11 00:23:46,983 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-11 00:23:46,983 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions.
[2021-10-11 00:23:46,983 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states.
[2021-10-11 00:23:46,983 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions.
[2021-10-11 00:23:46,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25
[2021-10-11 00:23:46,984 INFO L414 BasicCegarLoop]: Found error trace
[2021-10-11 00:23:46,985 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-11 00:23:47,192 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-11 00:23:47,193 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-10-11 00:23:47,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-11 00:23:47,194 INFO L82 PathProgramCache]: Analyzing trace with hash -691139815, now seen corresponding path program 1 times
[2021-10-11 00:23:47,194 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-11 00:23:47,194 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083450819]
[2021-10-11 00:23:47,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-11 00:23:47,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:23:47,535 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-11 00:23:47,536 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083450819]
[2021-10-11 00:23:47,536 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [215703243]
[2021-10-11 00:23:47,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ceecd17-af98-44f3-8173-4c6f2dfb9af3/bin/uautomizer-Z5i5R5N3CC/z3
Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-11 00:23:47,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:23:47,652 INFO L263 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 59 conjunts are in the unsatisfiable core
[2021-10-11 00:23:47,658 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-11 00:23:47,704 INFO L190 IndexEqualityManager]: detected not equals via solver
[2021-10-11 00:23:47,706 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7
[2021-10-11 00:23:47,707 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:47,711 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-10-11 00:23:47,712 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:47,712 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:11
[2021-10-11 00:23:47,779 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2021-10-11 00:23:47,779 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 34
[2021-10-11 00:23:47,785 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:47,804 INFO L625 ElimStorePlain]: treesize reduction 12, result has 67.6 percent of original size
[2021-10-11 00:23:47,807 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:47,807 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:25, output treesize:25
[2021-10-11 00:23:47,848 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts
[2021-10-11 00:23:47,852 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts
[2021-10-11 00:23:47,856 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts
[2021-10-11 00:23:47,871 INFO L443 ElimStorePlain]: Different costs {0=[|v_#memory_$Pointer$.offset_35|, |v_#memory_$Pointer$.base_36|], 10=[|v_#memory_int_34|]}
[2021-10-11 00:23:47,880 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9
[2021-10-11 00:23:47,881 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:47,891 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9
[2021-10-11 00:23:47,892 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:47,929 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-10-11 00:23:47,938 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9
[2021-10-11 00:23:47,939 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:47,948 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9
[2021-10-11 00:23:47,950 INFO L547 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:47,982 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-10-11 00:23:47,994 INFO L190 IndexEqualityManager]: detected not equals via solver
[2021-10-11 00:23:48,031 INFO L348 Elim1Store]: treesize reduction 16, result has 50.0 percent of original size
[2021-10-11 00:23:48,031 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 26
[2021-10-11 00:23:48,033 INFO L547 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:48,048 INFO L190 IndexEqualityManager]: detected not equals via solver
[2021-10-11 00:23:48,061 INFO L382 Elim1Store]: Elim1 did not use preprocessing 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 26 treesize of output 7
[2021-10-11 00:23:48,063 INFO L547 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:48,118 INFO L625 ElimStorePlain]: treesize reduction 16, result has 76.5 percent of original size
[2021-10-11 00:23:48,120 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 3 dim-2 vars, End of recursive call: and 2 xjuncts.
[2021-10-11 00:23:48,120 INFO L244 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:120, output treesize:49
[2021-10-11 00:23:48,384 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts
[2021-10-11 00:23:48,386 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts
[2021-10-11 00:23:48,389 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 2, 3, 1] term
[2021-10-11 00:23:48,389 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts
[2021-10-11 00:23:48,407 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11
[2021-10-11 00:23:48,408 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:48,435 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-10-11 00:23:48,440 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7
[2021-10-11 00:23:48,447 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:48,471 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-10-11 00:23:48,476 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7
[2021-10-11 00:23:48,479 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:48,501 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-10-11 00:23:48,515 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7
[2021-10-11 00:23:48,516 INFO L547 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:48,538 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-10-11 00:23:48,541 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 4 dim-2 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts.
[2021-10-11 00:23:48,541 INFO L244 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:85, output treesize:38
[2021-10-11 00:23:48,660 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-11 00:23:48,660 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-10-11 00:23:48,660 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 23
[2021-10-11 00:23:48,661 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600500472]
[2021-10-11 00:23:48,661 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states
[2021-10-11 00:23:48,661 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-11 00:23:48,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants.
[2021-10-11 00:23:48,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=448, Unknown=0, NotChecked=0, Total=506
[2021-10-11 00:23:48,662 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand 23 states.
[2021-10-11 00:23:49,416 WARN L197 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 64
[2021-10-11 00:23:49,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-11 00:23:49,677 INFO L93 Difference]: Finished difference Result 33 states and 35 transitions.
[2021-10-11 00:23:49,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2021-10-11 00:23:49,678 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 24
[2021-10-11 00:23:49,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-11 00:23:49,679 INFO L225 Difference]: With dead ends: 33
[2021-10-11 00:23:49,679 INFO L226 Difference]: Without dead ends: 28
[2021-10-11 00:23:49,680 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=149, Invalid=843, Unknown=0, NotChecked=0, Total=992
[2021-10-11 00:23:49,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states.
[2021-10-11 00:23:49,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28.
[2021-10-11 00:23:49,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states.
[2021-10-11 00:23:49,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions.
[2021-10-11 00:23:49,686 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 24
[2021-10-11 00:23:49,686 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-11 00:23:49,686 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions.
[2021-10-11 00:23:49,686 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states.
[2021-10-11 00:23:49,686 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions.
[2021-10-11 00:23:49,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28
[2021-10-11 00:23:49,687 INFO L414 BasicCegarLoop]: Found error trace
[2021-10-11 00:23:49,687 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-11 00:23:49,912 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-11 00:23:49,913 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-10-11 00:23:49,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-11 00:23:49,913 INFO L82 PathProgramCache]: Analyzing trace with hash -1263868996, now seen corresponding path program 2 times
[2021-10-11 00:23:49,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-11 00:23:49,914 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167117724]
[2021-10-11 00:23:49,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-11 00:23:49,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:23:50,246 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-11 00:23:50,247 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167117724]
[2021-10-11 00:23:50,247 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [361320722]
[2021-10-11 00:23:50,247 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ceecd17-af98-44f3-8173-4c6f2dfb9af3/bin/uautomizer-Z5i5R5N3CC/z3
Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-11 00:23:50,825 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2021-10-11 00:23:50,825 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-10-11 00:23:50,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 52 conjunts are in the unsatisfiable core
[2021-10-11 00:23:50,835 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-11 00:23:50,889 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2021-10-11 00:23:50,890 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:50,901 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-10-11 00:23:50,902 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:50,902 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12
[2021-10-11 00:23:50,967 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9
[2021-10-11 00:23:50,968 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:50,977 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-10-11 00:23:50,978 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:50,979 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:19
[2021-10-11 00:23:51,023 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2021-10-11 00:23:51,024 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15
[2021-10-11 00:23:51,026 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts
[2021-10-11 00:23:51,031 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:51,043 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-10-11 00:23:51,053 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12
[2021-10-11 00:23:51,055 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:51,063 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-10-11 00:23:51,064 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:51,064 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:40, output treesize:19
[2021-10-11 00:23:51,081 INFO L443 ElimStorePlain]: Different costs {0=[|v_#memory_$Pointer$.offset_36|], 2=[|v_#memory_$Pointer$.base_40|, |v_#memory_$Pointer$.base_38|]}
[2021-10-11 00:23:51,093 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9
[2021-10-11 00:23:51,094 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:51,109 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-10-11 00:23:51,116 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12
[2021-10-11 00:23:51,118 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:51,181 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-10-11 00:23:51,192 INFO L382 Elim1Store]: Elim1 did not use preprocessing 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 22 treesize of output 21
[2021-10-11 00:23:51,197 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:51,210 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-10-11 00:23:51,211 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:51,212 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:57, output treesize:37
[2021-10-11 00:23:51,362 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7
[2021-10-11 00:23:51,363 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:51,373 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-10-11 00:23:51,381 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts.
[2021-10-11 00:23:51,381 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:42, output treesize:31
[2021-10-11 00:23:51,458 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2021-10-11 00:23:51,458 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 23
[2021-10-11 00:23:51,461 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts
[2021-10-11 00:23:51,462 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:51,464 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-10-11 00:23:51,465 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:51,465 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:32, output treesize:4
[2021-10-11 00:23:51,524 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-11 00:23:51,525 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-10-11 00:23:51,525 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14] total 22
[2021-10-11 00:23:51,526 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408654436]
[2021-10-11 00:23:51,526 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states
[2021-10-11 00:23:51,528 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-11 00:23:51,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants.
[2021-10-11 00:23:51,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462
[2021-10-11 00:23:51,532 INFO L87 Difference]: Start difference. First operand 28 states and 30 transitions. Second operand 22 states.
[2021-10-11 00:23:52,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-11 00:23:52,671 INFO L93 Difference]: Finished difference Result 51 states and 55 transitions.
[2021-10-11 00:23:52,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states.
[2021-10-11 00:23:52,672 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 27
[2021-10-11 00:23:52,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-11 00:23:52,672 INFO L225 Difference]: With dead ends: 51
[2021-10-11 00:23:52,673 INFO L226 Difference]: Without dead ends: 43
[2021-10-11 00:23:52,674 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=329, Invalid=1003, Unknown=0, NotChecked=0, Total=1332
[2021-10-11 00:23:52,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states.
[2021-10-11 00:23:52,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 30.
[2021-10-11 00:23:52,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states.
[2021-10-11 00:23:52,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 32 transitions.
[2021-10-11 00:23:52,694 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 32 transitions. Word has length 27
[2021-10-11 00:23:52,694 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-11 00:23:52,694 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 32 transitions.
[2021-10-11 00:23:52,695 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states.
[2021-10-11 00:23:52,695 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions.
[2021-10-11 00:23:52,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28
[2021-10-11 00:23:52,696 INFO L414 BasicCegarLoop]: Found error trace
[2021-10-11 00:23:52,696 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-11 00:23:52,912 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-11 00:23:52,913 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-10-11 00:23:52,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-11 00:23:52,913 INFO L82 PathProgramCache]: Analyzing trace with hash -1321127298, now seen corresponding path program 2 times
[2021-10-11 00:23:52,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-11 00:23:52,914 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709810493]
[2021-10-11 00:23:52,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-11 00:23:52,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:23:53,355 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-11 00:23:53,355 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709810493]
[2021-10-11 00:23:53,355 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1394729881]
[2021-10-11 00:23:53,356 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ceecd17-af98-44f3-8173-4c6f2dfb9af3/bin/uautomizer-Z5i5R5N3CC/z3
Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-11 00:23:53,963 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2021-10-11 00:23:53,963 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-10-11 00:23:53,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 74 conjunts are in the unsatisfiable core
[2021-10-11 00:23:53,969 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-11 00:23:53,987 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2021-10-11 00:23:53,988 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:53,994 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-10-11 00:23:53,995 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:53,995 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12
[2021-10-11 00:23:54,053 INFO L190 IndexEqualityManager]: detected not equals via solver
[2021-10-11 00:23:54,058 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7
[2021-10-11 00:23:54,058 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:54,066 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-10-11 00:23:54,068 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:54,068 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:34, output treesize:16
[2021-10-11 00:23:54,165 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2021-10-11 00:23:54,165 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39
[2021-10-11 00:23:54,168 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts
[2021-10-11 00:23:54,171 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:54,187 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-10-11 00:23:54,194 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18
[2021-10-11 00:23:54,198 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:54,214 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-10-11 00:23:54,215 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:54,215 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:41, output treesize:35
[2021-10-11 00:23:54,284 INFO L443 ElimStorePlain]: Different costs {0=[|v_#memory_$Pointer$.base_41|, |v_#memory_$Pointer$.offset_37|], 10=[|v_#memory_int_37|]}
[2021-10-11 00:23:54,289 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9
[2021-10-11 00:23:54,290 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:54,313 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-10-11 00:23:54,321 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9
[2021-10-11 00:23:54,322 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:54,338 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-10-11 00:23:54,347 INFO L190 IndexEqualityManager]: detected not equals via solver
[2021-10-11 00:23:54,349 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18
[2021-10-11 00:23:54,350 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:54,362 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-10-11 00:23:54,363 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:54,364 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:77, output treesize:52
[2021-10-11 00:23:54,487 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2021-10-11 00:23:54,488 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 32
[2021-10-11 00:23:54,490 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts
[2021-10-11 00:23:54,493 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts
[2021-10-11 00:23:54,496 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:54,526 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-10-11 00:23:54,534 INFO L382 Elim1Store]: Elim1 did not use preprocessing 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 49 treesize of output 25
[2021-10-11 00:23:54,538 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:54,563 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-10-11 00:23:54,568 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24
[2021-10-11 00:23:54,571 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:54,596 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-10-11 00:23:54,601 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13
[2021-10-11 00:23:54,603 INFO L547 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:54,621 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-10-11 00:23:54,622 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:54,622 INFO L244 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:101, output treesize:60
[2021-10-11 00:23:54,722 INFO L443 ElimStorePlain]: Different costs {2=[|v_#memory_$Pointer$.base_42|, |v_#memory_$Pointer$.offset_40|, |v_#memory_$Pointer$.base_44|, |v_#memory_$Pointer$.offset_38|], 10=[|v_#memory_int_39|]}
[2021-10-11 00:23:54,731 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts.
[2021-10-11 00:23:54,768 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-10-11 00:23:54,777 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11
[2021-10-11 00:23:54,778 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:54,806 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-10-11 00:23:54,812 INFO L190 IndexEqualityManager]: detected not equals via solver
[2021-10-11 00:23:54,815 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 39
[2021-10-11 00:23:54,816 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:54,858 INFO L625 ElimStorePlain]: treesize reduction 4, result has 95.9 percent of original size
[2021-10-11 00:23:54,863 INFO L190 IndexEqualityManager]: detected not equals via solver
[2021-10-11 00:23:54,863 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20
[2021-10-11 00:23:54,865 INFO L547 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:54,882 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-10-11 00:23:54,886 INFO L190 IndexEqualityManager]: detected not equals via solver
[2021-10-11 00:23:54,887 INFO L382 Elim1Store]: Elim1 did not use preprocessing 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 38 treesize of output 22
[2021-10-11 00:23:54,898 INFO L547 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:54,912 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-10-11 00:23:54,914 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 5 dim-2 vars, End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:54,914 INFO L244 ElimStorePlain]: Needed 6 recursive calls to eliminate 6 variables, input treesize:124, output treesize:77
[2021-10-11 00:23:55,173 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-10-11 00:23:55,188 INFO L348 Elim1Store]: treesize reduction 8, result has 60.0 percent of original size
[2021-10-11 00:23:55,189 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 89 treesize of output 53
[2021-10-11 00:23:55,198 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts.
[2021-10-11 00:23:55,214 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-10-11 00:23:55,225 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2021-10-11 00:23:55,226 INFO L382 Elim1Store]: Elim1 did not use preprocessing 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 4 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 23
[2021-10-11 00:23:55,228 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:55,241 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-10-11 00:23:55,243 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:55,243 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:99, output treesize:14
[2021-10-11 00:23:55,288 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts
[2021-10-11 00:23:55,291 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts
[2021-10-11 00:23:55,293 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts
[2021-10-11 00:23:55,299 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-10-11 00:23:55,300 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7
[2021-10-11 00:23:55,302 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:55,305 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3
[2021-10-11 00:23:55,306 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:55,311 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-10-11 00:23:55,311 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:55,312 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:33, output treesize:5
[2021-10-11 00:23:55,355 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-11 00:23:55,356 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-10-11 00:23:55,356 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 15] total 30
[2021-10-11 00:23:55,356 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719467078]
[2021-10-11 00:23:55,356 INFO L461 AbstractCegarLoop]: Interpolant automaton has 30 states
[2021-10-11 00:23:55,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-11 00:23:55,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants.
[2021-10-11 00:23:55,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=792, Unknown=0, NotChecked=0, Total=870
[2021-10-11 00:23:55,358 INFO L87 Difference]: Start difference. First operand 30 states and 32 transitions. Second operand 30 states.
[2021-10-11 00:23:56,339 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 76
[2021-10-11 00:23:56,546 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 79
[2021-10-11 00:23:56,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-11 00:23:56,896 INFO L93 Difference]: Finished difference Result 36 states and 38 transitions.
[2021-10-11 00:23:56,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states.
[2021-10-11 00:23:56,897 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 27
[2021-10-11 00:23:56,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-11 00:23:56,897 INFO L225 Difference]: With dead ends: 36
[2021-10-11 00:23:56,898 INFO L226 Difference]: Without dead ends: 31
[2021-10-11 00:23:56,899 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=187, Invalid=1535, Unknown=0, NotChecked=0, Total=1722
[2021-10-11 00:23:56,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states.
[2021-10-11 00:23:56,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31.
[2021-10-11 00:23:56,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states.
[2021-10-11 00:23:56,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions.
[2021-10-11 00:23:56,906 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 27
[2021-10-11 00:23:56,906 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-11 00:23:56,907 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions.
[2021-10-11 00:23:56,907 INFO L482 AbstractCegarLoop]: Interpolant automaton has 30 states.
[2021-10-11 00:23:56,907 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions.
[2021-10-11 00:23:56,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31
[2021-10-11 00:23:56,908 INFO L414 BasicCegarLoop]: Found error trace
[2021-10-11 00:23:56,908 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-11 00:23:57,116 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-11 00:23:57,117 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-10-11 00:23:57,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-11 00:23:57,117 INFO L82 PathProgramCache]: Analyzing trace with hash -213891529, now seen corresponding path program 3 times
[2021-10-11 00:23:57,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-11 00:23:57,117 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665995516]
[2021-10-11 00:23:57,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-11 00:23:57,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:23:57,549 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-11 00:23:57,549 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665995516]
[2021-10-11 00:23:57,549 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [218519053]
[2021-10-11 00:23:57,549 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ceecd17-af98-44f3-8173-4c6f2dfb9af3/bin/uautomizer-Z5i5R5N3CC/z3
Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-11 00:23:58,698 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s)
[2021-10-11 00:23:58,698 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-10-11 00:23:58,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 72 conjunts are in the unsatisfiable core
[2021-10-11 00:23:58,704 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-11 00:23:58,784 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9
[2021-10-11 00:23:58,788 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:58,793 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-10-11 00:23:58,794 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:58,794 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:21, output treesize:14
[2021-10-11 00:23:58,851 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2021-10-11 00:23:58,852 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:58,861 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-10-11 00:23:58,866 INFO L190 IndexEqualityManager]: detected not equals via solver
[2021-10-11 00:23:58,868 INFO L382 Elim1Store]: Elim1 did not use preprocessing 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 26 treesize of output 14
[2021-10-11 00:23:58,877 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:58,885 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-10-11 00:23:58,885 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:58,885 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:38, output treesize:22
[2021-10-11 00:23:58,929 INFO L443 ElimStorePlain]: Different costs {0=[|v_#memory_$Pointer$.offset_41|], 2=[|v_#memory_$Pointer$.base_49|, |v_#memory_$Pointer$.base_46|]}
[2021-10-11 00:23:58,934 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9
[2021-10-11 00:23:58,935 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:58,954 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-10-11 00:23:58,961 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12
[2021-10-11 00:23:58,962 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:58,972 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-10-11 00:23:58,976 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-10-11 00:23:58,987 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2021-10-11 00:23:58,987 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 37
[2021-10-11 00:23:58,993 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts
[2021-10-11 00:23:58,995 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:59,017 INFO L625 ElimStorePlain]: treesize reduction 16, result has 70.9 percent of original size
[2021-10-11 00:23:59,018 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:59,018 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:62, output treesize:42
[2021-10-11 00:23:59,120 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2021-10-11 00:23:59,124 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15
[2021-10-11 00:23:59,128 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts
[2021-10-11 00:23:59,130 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:59,146 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-10-11 00:23:59,148 INFO L443 ElimStorePlain]: Different costs {2=[|v_#memory_$Pointer$.offset_43|], 6=[|v_#memory_$Pointer$.base_50|]}
[2021-10-11 00:23:59,155 INFO L382 Elim1Store]: Elim1 did not use preprocessing 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
[2021-10-11 00:23:59,156 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:59,169 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-10-11 00:23:59,172 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-10-11 00:23:59,176 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2021-10-11 00:23:59,177 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 36
[2021-10-11 00:23:59,180 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:59,204 INFO L625 ElimStorePlain]: treesize reduction 30, result has 59.5 percent of original size
[2021-10-11 00:23:59,204 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:59,204 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:80, output treesize:44
[2021-10-11 00:23:59,254 INFO L443 ElimStorePlain]: Different costs {2=[|v_#memory_$Pointer$.offset_42|, |v_#memory_$Pointer$.offset_44|, |v_#memory_$Pointer$.base_47|], 5=[|v_#memory_$Pointer$.base_51|]}
[2021-10-11 00:23:59,258 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts.
[2021-10-11 00:23:59,278 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-10-11 00:23:59,284 INFO L190 IndexEqualityManager]: detected not equals via solver
[2021-10-11 00:23:59,285 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 27
[2021-10-11 00:23:59,287 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:59,307 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-10-11 00:23:59,310 INFO L547 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts.
[2021-10-11 00:23:59,325 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-10-11 00:23:59,339 INFO L190 IndexEqualityManager]: detected not equals via solver
[2021-10-11 00:23:59,340 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-10-11 00:23:59,353 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2021-10-11 00:23:59,353 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 66
[2021-10-11 00:23:59,355 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts
[2021-10-11 00:23:59,355 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts
[2021-10-11 00:23:59,361 INFO L547 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:59,410 INFO L625 ElimStorePlain]: treesize reduction 53, result has 57.3 percent of original size
[2021-10-11 00:23:59,425 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 4 dim-2 vars, End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:59,426 INFO L244 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:95, output treesize:78
[2021-10-11 00:23:59,691 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2021-10-11 00:23:59,691 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 36
[2021-10-11 00:23:59,693 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:59,705 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-10-11 00:23:59,708 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts.
[2021-10-11 00:23:59,709 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:97, output treesize:59
[2021-10-11 00:23:59,938 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2021-10-11 00:23:59,938 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 50
[2021-10-11 00:23:59,942 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts
[2021-10-11 00:23:59,956 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts
[2021-10-11 00:23:59,958 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts
[2021-10-11 00:23:59,965 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts
[2021-10-11 00:23:59,967 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts
[2021-10-11 00:23:59,969 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:59,971 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-10-11 00:23:59,972 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts.
[2021-10-11 00:23:59,972 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:60, output treesize:4
[2021-10-11 00:24:00,020 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-11 00:24:00,020 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-10-11 00:24:00,020 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 33
[2021-10-11 00:24:00,020 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98356904]
[2021-10-11 00:24:00,021 INFO L461 AbstractCegarLoop]: Interpolant automaton has 33 states
[2021-10-11 00:24:00,021 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-11 00:24:00,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants.
[2021-10-11 00:24:00,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=939, Unknown=0, NotChecked=0, Total=1056
[2021-10-11 00:24:00,022 INFO L87 Difference]: Start difference. First operand 31 states and 33 transitions. Second operand 33 states.
[2021-10-11 00:24:00,997 WARN L197 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70
[2021-10-11 00:24:01,565 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 74
[2021-10-11 00:24:01,779 WARN L197 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 96
[2021-10-11 00:24:01,978 WARN L197 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 97
[2021-10-11 00:24:02,152 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 97
[2021-10-11 00:24:02,332 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 98
[2021-10-11 00:24:02,530 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91
[2021-10-11 00:24:02,694 WARN L197 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 92
[2021-10-11 00:24:02,970 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74
[2021-10-11 00:24:03,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-11 00:24:03,008 INFO L93 Difference]: Finished difference Result 57 states and 61 transitions.
[2021-10-11 00:24:03,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states.
[2021-10-11 00:24:03,009 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 30
[2021-10-11 00:24:03,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-11 00:24:03,010 INFO L225 Difference]: With dead ends: 57
[2021-10-11 00:24:03,010 INFO L226 Difference]: Without dead ends: 49
[2021-10-11 00:24:03,012 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 524 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=846, Invalid=2814, Unknown=0, NotChecked=0, Total=3660
[2021-10-11 00:24:03,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states.
[2021-10-11 00:24:03,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 33.
[2021-10-11 00:24:03,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states.
[2021-10-11 00:24:03,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions.
[2021-10-11 00:24:03,019 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 30
[2021-10-11 00:24:03,019 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-11 00:24:03,019 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions.
[2021-10-11 00:24:03,019 INFO L482 AbstractCegarLoop]: Interpolant automaton has 33 states.
[2021-10-11 00:24:03,019 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions.
[2021-10-11 00:24:03,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31
[2021-10-11 00:24:03,020 INFO L414 BasicCegarLoop]: Found error trace
[2021-10-11 00:24:03,020 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-11 00:24:03,234 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-11 00:24:03,235 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-10-11 00:24:03,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-11 00:24:03,235 INFO L82 PathProgramCache]: Analyzing trace with hash -271149831, now seen corresponding path program 3 times
[2021-10-11 00:24:03,235 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-11 00:24:03,235 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741623327]
[2021-10-11 00:24:03,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-11 00:24:03,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-11 00:24:03,318 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-11 00:24:03,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-11 00:24:03,398 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-11 00:24:03,438 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-11 00:24:03,438 INFO L523 BasicCegarLoop]: Counterexample might be feasible
[2021-10-11 00:24:03,439 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2021-10-11 00:24:03,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:24:03 BoogieIcfgContainer
[2021-10-11 00:24:03,519 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-10-11 00:24:03,520 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2021-10-11 00:24:03,520 INFO L271 PluginConnector]: Initializing Witness Printer...
[2021-10-11 00:24:03,520 INFO L275 PluginConnector]: Witness Printer initialized
[2021-10-11 00:24:03,521 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:23:44" (3/4) ...
[2021-10-11 00:24:03,522 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample
[2021-10-11 00:24:03,587 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ceecd17-af98-44f3-8173-4c6f2dfb9af3/bin/uautomizer-Z5i5R5N3CC/witness.graphml
[2021-10-11 00:24:03,587 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2021-10-11 00:24:03,588 INFO L168 Benchmark]: Toolchain (without parser) took 20052.41 ms. Allocated memory was 98.6 MB in the beginning and 186.6 MB in the end (delta: 88.1 MB). Free memory was 71.1 MB in the beginning and 62.1 MB in the end (delta: 9.0 MB). Peak memory consumption was 98.6 MB. Max. memory is 16.1 GB.
[2021-10-11 00:24:03,588 INFO L168 Benchmark]: CDTParser took 1.83 ms. Allocated memory is still 81.8 MB. Free memory is still 50.6 MB. There was no memory consumed. Max. memory is 16.1 GB.
[2021-10-11 00:24:03,589 INFO L168 Benchmark]: CACSL2BoogieTranslator took 544.77 ms. Allocated memory is still 98.6 MB. Free memory was 70.9 MB in the beginning and 48.5 MB in the end (delta: 22.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB.
[2021-10-11 00:24:03,589 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.83 ms. Allocated memory is still 98.6 MB. Free memory was 48.5 MB in the beginning and 46.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
[2021-10-11 00:24:03,589 INFO L168 Benchmark]: Boogie Preprocessor took 48.56 ms. Allocated memory is still 98.6 MB. Free memory was 46.4 MB in the beginning and 44.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
[2021-10-11 00:24:03,590 INFO L168 Benchmark]: RCFGBuilder took 659.91 ms. Allocated memory is still 98.6 MB. Free memory was 44.8 MB in the beginning and 63.0 MB in the end (delta: -18.2 MB). Peak memory consumption was 17.9 MB. Max. memory is 16.1 GB.
[2021-10-11 00:24:03,590 INFO L168 Benchmark]: TraceAbstraction took 18661.72 ms. Allocated memory was 98.6 MB in the beginning and 186.6 MB in the end (delta: 88.1 MB). Free memory was 62.6 MB in the beginning and 65.3 MB in the end (delta: -2.7 MB). Peak memory consumption was 84.9 MB. Max. memory is 16.1 GB.
[2021-10-11 00:24:03,591 INFO L168 Benchmark]: Witness Printer took 67.33 ms. Allocated memory is still 186.6 MB. Free memory was 65.3 MB in the beginning and 62.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB.
[2021-10-11 00:24:03,593 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 1.83 ms. Allocated memory is still 81.8 MB. Free memory is still 50.6 MB. There was no memory consumed. Max. memory is 16.1 GB.
* CACSL2BoogieTranslator took 544.77 ms. Allocated memory is still 98.6 MB. Free memory was 70.9 MB in the beginning and 48.5 MB in the end (delta: 22.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB.
* Boogie Procedure Inliner took 62.83 ms. Allocated memory is still 98.6 MB. Free memory was 48.5 MB in the beginning and 46.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
* Boogie Preprocessor took 48.56 ms. Allocated memory is still 98.6 MB. Free memory was 46.4 MB in the beginning and 44.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
* RCFGBuilder took 659.91 ms. Allocated memory is still 98.6 MB. Free memory was 44.8 MB in the beginning and 63.0 MB in the end (delta: -18.2 MB). Peak memory consumption was 17.9 MB. Max. memory is 16.1 GB.
* TraceAbstraction took 18661.72 ms. Allocated memory was 98.6 MB in the beginning and 186.6 MB in the end (delta: 88.1 MB). Free memory was 62.6 MB in the beginning and 65.3 MB in the end (delta: -2.7 MB). Peak memory consumption was 84.9 MB. Max. memory is 16.1 GB.
* Witness Printer took 67.33 ms. Allocated memory is still 186.6 MB. Free memory was 65.3 MB in the beginning and 62.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- CounterExampleResult [Line: 15]: a call to reach_error is reachable
a call to reach_error is reachable
We found a FailurePath:
[L533] mlist *head;
VAL [head={0:0}]
[L554] int i;
[L555] mlist *mylist, *temp;
[L542] l = (mlist*)malloc(sizeof(mlist))
[L543] l->key = k
VAL [head={0:0}]
[L544] COND TRUE head==((void *)0)
[L545] l->next = ((void *)0)
VAL [head={0:0}]
[L550] head = l
[L551] return 0;
VAL [head={-1:0}]
[L542] l = (mlist*)malloc(sizeof(mlist))
[L543] l->key = k
VAL [head={-1:0}]
[L544] COND FALSE !(head==((void *)0))
[L547] l->key = k
[L548] l->next = head
VAL [head={-1:0}]
[L550] head = l
[L551] return 0;
VAL [head={-5:0}]
[L542] l = (mlist*)malloc(sizeof(mlist))
[L543] l->key = k
VAL [head={-5:0}]
[L544] COND FALSE !(head==((void *)0))
[L547] l->key = k
[L548] l->next = head
VAL [head={-5:0}]
[L550] head = l
[L551] return 0;
VAL [head={-3:0}]
[L542] l = (mlist*)malloc(sizeof(mlist))
[L543] l->key = k
VAL [head={-3:0}]
[L544] COND FALSE !(head==((void *)0))
[L547] l->key = k
[L548] l->next = head
VAL [head={-3:0}]
[L550] head = l
[L551] return 0;
VAL [head={-4:0}]
[L535] l = head
VAL [head={-4:0}]
[L536] l!=((void *)0) && l->key!=k
[L536] EXPR l->key
[L536] l!=((void *)0) && l->key!=k
VAL [head={-4:0}]
[L536] COND TRUE l!=((void *)0) && l->key!=k
[L537] EXPR l->next
[L537] l = l->next
[L536] l!=((void *)0) && l->key!=k
[L536] EXPR l->key
[L536] l!=((void *)0) && l->key!=k
VAL [head={-4:0}]
[L536] COND TRUE l!=((void *)0) && l->key!=k
[L537] EXPR l->next
[L537] l = l->next
[L536] l!=((void *)0) && l->key!=k
[L536] EXPR l->key
[L536] l!=((void *)0) && l->key!=k
VAL [head={-4:0}]
[L536] COND TRUE l!=((void *)0) && l->key!=k
[L537] EXPR l->next
[L537] l = l->next
[L536] l!=((void *)0) && l->key!=k
[L536] EXPR l->key
[L536] l!=((void *)0) && l->key!=k
VAL [head={-4:0}]
[L536] COND FALSE !(l!=((void *)0) && l->key!=k)
[L539] return l;
VAL [head={-4:0}]
[L560] temp = search_list(head,2)
[L561] temp->key
[L14] COND TRUE !(cond)
VAL [head={-4:0}]
[L15] reach_error()
VAL [head={-4:0}]
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 1 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 18.5s, OverallIterations: 9, TraceHistogramMax: 4, AutomataDifference: 7.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 86 SDtfs, 926 SDslu, 307 SDs, 0 SdLazy, 1616 SolverSat, 558 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 314 GetRequests, 109 SyntacticMatches, 1 SemanticMatches, 204 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1157 ImplicationChecksByTransitivity, 8.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 45 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.6s SatisfiabilityAnalysisTime, 6.4s InterpolantComputationTime, 355 NumberOfCodeBlocks, 355 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 312 ConstructedInterpolants, 12 QuantifiedInterpolants, 121900 SizeOfPredicates, 102 NumberOfNonLiveVariables, 1146 ConjunctsInSsa, 277 ConjunctsInUnsatCore, 13 InterpolantComputations, 3 PerfectInterpolantSequences, 12/84 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be incorrect!
Received shutdown request...