./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8d31f386 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+nlh-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 8242c02a65c511b095f42030318aeef939254d04 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.multireach-323-8d31f38 [2021-07-05 02:50:50,753 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-05 02:50:50,755 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-05 02:50:50,788 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-05 02:50:50,788 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-05 02:50:50,791 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-05 02:50:50,792 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-05 02:50:50,795 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-05 02:50:50,797 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-05 02:50:50,800 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-05 02:50:50,801 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-05 02:50:50,802 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-05 02:50:50,802 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-05 02:50:50,804 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-05 02:50:50,804 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-05 02:50:50,805 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-05 02:50:50,807 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-05 02:50:50,808 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-05 02:50:50,809 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-05 02:50:50,813 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-05 02:50:50,814 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-05 02:50:50,815 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-05 02:50:50,816 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-05 02:50:50,817 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-05 02:50:50,821 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-05 02:50:50,821 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-05 02:50:50,821 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-05 02:50:50,822 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-05 02:50:50,823 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-05 02:50:50,823 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-05 02:50:50,823 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-05 02:50:50,824 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-05 02:50:50,825 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-05 02:50:50,825 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-05 02:50:50,826 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-05 02:50:50,826 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-05 02:50:50,826 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-05 02:50:50,826 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-05 02:50:50,827 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-05 02:50:50,828 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-05 02:50:50,828 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-05 02:50:50,828 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-07-05 02:50:50,854 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-05 02:50:50,855 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-05 02:50:50,856 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-05 02:50:50,856 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-05 02:50:50,856 INFO L138 SettingsManager]: * Use SBE=true [2021-07-05 02:50:50,856 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-05 02:50:50,857 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-05 02:50:50,857 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-05 02:50:50,857 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-05 02:50:50,857 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-05 02:50:50,858 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-05 02:50:50,858 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-05 02:50:50,858 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-05 02:50:50,858 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-05 02:50:50,858 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-05 02:50:50,858 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-05 02:50:50,858 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-05 02:50:50,858 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-05 02:50:50,859 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-05 02:50:50,859 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-05 02:50:50,859 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-05 02:50:50,859 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-05 02:50:50,859 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-05 02:50:50,859 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-05 02:50:50,859 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-05 02:50:50,859 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-05 02:50:50,859 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-05 02:50:50,859 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-05 02:50:50,860 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8242c02a65c511b095f42030318aeef939254d04 [2021-07-05 02:50:51,111 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-05 02:50:51,130 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-05 02:50:51,132 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-05 02:50:51,133 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-05 02:50:51,133 INFO L275 PluginConnector]: CDTParser initialized [2021-07-05 02:50:51,134 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+nlh-reducer.c [2021-07-05 02:50:51,177 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c47ea6785/ea9980b3abc445dcbe1d621a9c7fd5e9/FLAGa70f29528 [2021-07-05 02:50:51,496 INFO L306 CDTParser]: Found 1 translation units. [2021-07-05 02:50:51,496 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+nlh-reducer.c [2021-07-05 02:50:51,501 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c47ea6785/ea9980b3abc445dcbe1d621a9c7fd5e9/FLAGa70f29528 [2021-07-05 02:50:51,917 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c47ea6785/ea9980b3abc445dcbe1d621a9c7fd5e9 [2021-07-05 02:50:51,918 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-05 02:50:51,919 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-05 02:50:51,920 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-05 02:50:51,920 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-05 02:50:51,923 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-05 02:50:51,924 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.07 02:50:51" (1/1) ... [2021-07-05 02:50:51,925 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1611ef16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 02:50:51, skipping insertion in model container [2021-07-05 02:50:51,925 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.07 02:50:51" (1/1) ... [2021-07-05 02:50:51,929 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-05 02:50:51,943 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-05 02:50:52,058 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+nlh-reducer.c[1126,1139] [2021-07-05 02:50:52,064 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+nlh-reducer.c[1880,1893] [2021-07-05 02:50:52,071 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+nlh-reducer.c[2415,2428] [2021-07-05 02:50:52,080 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-05 02:50:52,086 INFO L203 MainTranslator]: Completed pre-run [2021-07-05 02:50:52,135 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+nlh-reducer.c[1126,1139] [2021-07-05 02:50:52,138 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+nlh-reducer.c[1880,1893] [2021-07-05 02:50:52,141 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+nlh-reducer.c[2415,2428] [2021-07-05 02:50:52,160 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-05 02:50:52,169 INFO L208 MainTranslator]: Completed translation [2021-07-05 02:50:52,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 02:50:52 WrapperNode [2021-07-05 02:50:52,169 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-05 02:50:52,170 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-05 02:50:52,170 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-05 02:50:52,170 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-05 02:50:52,174 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 02:50:52" (1/1) ... [2021-07-05 02:50:52,178 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 02:50:52" (1/1) ... [2021-07-05 02:50:52,201 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-05 02:50:52,202 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-05 02:50:52,202 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-05 02:50:52,202 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-05 02:50:52,207 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 02:50:52" (1/1) ... [2021-07-05 02:50:52,208 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 02:50:52" (1/1) ... [2021-07-05 02:50:52,211 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 02:50:52" (1/1) ... [2021-07-05 02:50:52,211 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 02:50:52" (1/1) ... [2021-07-05 02:50:52,223 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 02:50:52" (1/1) ... [2021-07-05 02:50:52,225 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 02:50:52" (1/1) ... [2021-07-05 02:50:52,228 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 02:50:52" (1/1) ... [2021-07-05 02:50:52,231 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-05 02:50:52,232 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-05 02:50:52,232 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-05 02:50:52,232 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-05 02:50:52,233 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 02:50:52" (1/1) ... [2021-07-05 02:50:52,237 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-05 02:50:52,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-05 02:50:52,249 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-07-05 02:50:52,288 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-07-05 02:50:52,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-05 02:50:52,319 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-05 02:50:52,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-05 02:50:52,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-05 02:50:52,319 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-07-05 02:50:52,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-05 02:50:52,658 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-05 02:50:52,659 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-07-05 02:50:52,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.07 02:50:52 BoogieIcfgContainer [2021-07-05 02:50:52,660 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-05 02:50:52,661 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-05 02:50:52,661 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-05 02:50:52,663 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-05 02:50:52,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.07 02:50:51" (1/3) ... [2021-07-05 02:50:52,664 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a2cee5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.07 02:50:52, skipping insertion in model container [2021-07-05 02:50:52,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 02:50:52" (2/3) ... [2021-07-05 02:50:52,664 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a2cee5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.07 02:50:52, skipping insertion in model container [2021-07-05 02:50:52,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.07 02:50:52" (3/3) ... [2021-07-05 02:50:52,665 INFO L111 eAbstractionObserver]: Analyzing ICFG simple_array_index_value_4.i.v+nlh-reducer.c [2021-07-05 02:50:52,669 INFO L198 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-05 02:50:52,670 INFO L158 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-07-05 02:50:52,705 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-05 02:50:52,711 INFO L329 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-05 02:50:52,711 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-05 02:50:52,726 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 27 states have (on average 1.6296296296296295) internal successors, (44), 30 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 02:50:52,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-07-05 02:50:52,729 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 02:50:52,729 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 02:50:52,730 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 02:50:52,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 02:50:52,734 INFO L82 PathProgramCache]: Analyzing trace with hash -2085816175, now seen corresponding path program 1 times [2021-07-05 02:50:52,739 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 02:50:52,739 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123409841] [2021-07-05 02:50:52,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 02:50:52,740 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 02:50:52,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 02:50:52,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:52,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:52,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:52,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-05 02:50:52,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:52,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:52,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 02:50:52,853 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 02:50:52,853 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123409841] [2021-07-05 02:50:52,854 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123409841] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 02:50:52,854 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 02:50:52,854 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-05 02:50:52,855 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813872531] [2021-07-05 02:50:52,865 INFO L425 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-05 02:50:52,866 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 02:50:52,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-05 02:50:52,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-05 02:50:52,878 INFO L87 Difference]: Start difference. First operand has 31 states, 27 states have (on average 1.6296296296296295) internal successors, (44), 30 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 02:50:52,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 02:50:52,928 INFO L93 Difference]: Finished difference Result 71 states and 96 transitions. [2021-07-05 02:50:52,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-05 02:50:52,929 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-07-05 02:50:52,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 02:50:52,934 INFO L225 Difference]: With dead ends: 71 [2021-07-05 02:50:52,934 INFO L226 Difference]: Without dead ends: 12 [2021-07-05 02:50:52,935 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-05 02:50:52,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-07-05 02:50:52,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-07-05 02:50:52,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 02:50:52,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2021-07-05 02:50:52,953 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2021-07-05 02:50:52,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 02:50:52,953 INFO L442 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2021-07-05 02:50:52,953 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 02:50:52,953 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2021-07-05 02:50:52,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-07-05 02:50:52,953 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 02:50:52,953 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 02:50:52,954 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-05 02:50:52,954 INFO L374 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 02:50:52,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 02:50:52,954 INFO L82 PathProgramCache]: Analyzing trace with hash 2140661612, now seen corresponding path program 1 times [2021-07-05 02:50:52,954 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 02:50:52,954 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341076684] [2021-07-05 02:50:52,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 02:50:52,955 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 02:50:52,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 02:50:53,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:53,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 02:50:53,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 02:50:53,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:53,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 02:50:53,018 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 02:50:53,018 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341076684] [2021-07-05 02:50:53,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341076684] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 02:50:53,018 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 02:50:53,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-05 02:50:53,018 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515972451] [2021-07-05 02:50:53,019 INFO L425 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-05 02:50:53,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 02:50:53,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-05 02:50:53,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-05 02:50:53,020 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 02:50:53,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 02:50:53,049 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2021-07-05 02:50:53,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-05 02:50:53,050 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-07-05 02:50:53,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 02:50:53,050 INFO L225 Difference]: With dead ends: 16 [2021-07-05 02:50:53,050 INFO L226 Difference]: Without dead ends: 12 [2021-07-05 02:50:53,051 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.1ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-07-05 02:50:53,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-07-05 02:50:53,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-07-05 02:50:53,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0) internal successors, (11), 11 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 02:50:53,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2021-07-05 02:50:53,053 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 10 [2021-07-05 02:50:53,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 02:50:53,053 INFO L442 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2021-07-05 02:50:53,053 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 02:50:53,053 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2021-07-05 02:50:53,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-07-05 02:50:53,053 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 02:50:53,053 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 02:50:53,054 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-05 02:50:53,054 INFO L374 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 02:50:53,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 02:50:53,054 INFO L82 PathProgramCache]: Analyzing trace with hash 1997962921, now seen corresponding path program 1 times [2021-07-05 02:50:53,054 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 02:50:53,054 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924711649] [2021-07-05 02:50:53,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 02:50:53,054 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 02:50:53,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 02:50:53,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:53,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-05 02:50:53,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:53,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 02:50:53,084 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 02:50:53,084 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924711649] [2021-07-05 02:50:53,084 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924711649] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 02:50:53,085 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 02:50:53,085 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-05 02:50:53,085 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759326520] [2021-07-05 02:50:53,085 INFO L425 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-05 02:50:53,085 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 02:50:53,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-05 02:50:53,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-05 02:50:53,086 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 02:50:53,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 02:50:53,091 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2021-07-05 02:50:53,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-05 02:50:53,091 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-07-05 02:50:53,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 02:50:53,092 INFO L225 Difference]: With dead ends: 12 [2021-07-05 02:50:53,092 INFO L226 Difference]: Without dead ends: 0 [2021-07-05 02:50:53,092 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-05 02:50:53,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-05 02:50:53,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-05 02:50:53,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 02:50:53,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-05 02:50:53,093 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2021-07-05 02:50:53,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 02:50:53,093 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-05 02:50:53,093 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 02:50:53,093 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-05 02:50:53,093 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-05 02:50:53,096 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-07-05 02:50:53,099 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:50:53,100 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:50:53,101 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:50:53,101 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:50:53,102 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:50:53,102 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:50:53,103 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:50:53,103 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:50:53,111 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:50:53,125 INFO L762 garLoopResultBuilder]: For program point L31(lines 31 147) no Hoare annotation was computed. [2021-07-05 02:50:53,125 INFO L762 garLoopResultBuilder]: For program point L60(lines 60 93) no Hoare annotation was computed. [2021-07-05 02:50:53,125 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 73) no Hoare annotation was computed. [2021-07-05 02:50:53,125 INFO L758 garLoopResultBuilder]: At program point L151(lines 29 152) the Hoare annotation is: false [2021-07-05 02:50:53,125 INFO L762 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2021-07-05 02:50:53,125 INFO L762 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2021-07-05 02:50:53,126 INFO L762 garLoopResultBuilder]: For program point L40(lines 40 139) no Hoare annotation was computed. [2021-07-05 02:50:53,126 INFO L765 garLoopResultBuilder]: At program point L131(lines 98 132) the Hoare annotation is: true [2021-07-05 02:50:53,127 INFO L762 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-07-05 02:50:53,127 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-07-05 02:50:53,127 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-07-05 02:50:53,127 INFO L765 garLoopResultBuilder]: At program point L156(lines 26 157) the Hoare annotation is: true [2021-07-05 02:50:53,127 INFO L762 garLoopResultBuilder]: For program point L57(lines 57 133) no Hoare annotation was computed. [2021-07-05 02:50:53,127 INFO L762 garLoopResultBuilder]: For program point L24(lines 24 162) no Hoare annotation was computed. [2021-07-05 02:50:53,127 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 42) no Hoare annotation was computed. [2021-07-05 02:50:53,127 INFO L765 garLoopResultBuilder]: At program point L119(lines 99 128) the Hoare annotation is: true [2021-07-05 02:50:53,127 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-07-05 02:50:53,127 INFO L762 garLoopResultBuilder]: For program point L62(lines 62 88) no Hoare annotation was computed. [2021-07-05 02:50:53,127 INFO L762 garLoopResultBuilder]: For program point L29(lines 29 152) no Hoare annotation was computed. [2021-07-05 02:50:53,134 INFO L765 garLoopResultBuilder]: At program point L87(lines 62 88) the Hoare annotation is: true [2021-07-05 02:50:53,134 INFO L762 garLoopResultBuilder]: For program point L21(lines 21 167) no Hoare annotation was computed. [2021-07-05 02:50:53,134 INFO L762 garLoopResultBuilder]: For program point L50(lines 50 138) no Hoare annotation was computed. [2021-07-05 02:50:53,135 INFO L765 garLoopResultBuilder]: At program point L79(lines 46 139) the Hoare annotation is: true [2021-07-05 02:50:53,135 INFO L762 garLoopResultBuilder]: For program point L108(lines 108 120) no Hoare annotation was computed. [2021-07-05 02:50:53,135 INFO L762 garLoopResultBuilder]: For program point L42(line 42) no Hoare annotation was computed. [2021-07-05 02:50:53,135 INFO L762 garLoopResultBuilder]: For program point L71(lines 71 80) no Hoare annotation was computed. [2021-07-05 02:50:53,135 INFO L765 garLoopResultBuilder]: At program point L166(lines 14 168) the Hoare annotation is: true [2021-07-05 02:50:53,135 INFO L765 garLoopResultBuilder]: At program point L92(lines 60 93) the Hoare annotation is: true [2021-07-05 02:50:53,135 INFO L762 garLoopResultBuilder]: For program point L26(lines 26 157) no Hoare annotation was computed. [2021-07-05 02:50:53,138 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 110) no Hoare annotation was computed. [2021-07-05 02:50:53,138 INFO L758 garLoopResultBuilder]: At program point L146(lines 31 147) the Hoare annotation is: (and (<= ULTIMATE.start_main_~main__index1~0 (+ 99999 (* 4294967296 (div ULTIMATE.start_main_~main__index1~0 4294967296)))) (= ULTIMATE.start_main_~main____CPAchecker_TMP_0~0 1)) [2021-07-05 02:50:53,138 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-05 02:50:53,138 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-05 02:50:53,142 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION was SAFE (1/3) [2021-07-05 02:50:53,147 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-05 02:50:53,151 INFO L329 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-05 02:50:53,151 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-05 02:50:53,152 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 27 states have (on average 1.6296296296296295) internal successors, (44), 30 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 02:50:53,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-07-05 02:50:53,153 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 02:50:53,153 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 02:50:53,153 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 02:50:53,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 02:50:53,154 INFO L82 PathProgramCache]: Analyzing trace with hash 961558643, now seen corresponding path program 1 times [2021-07-05 02:50:53,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 02:50:53,154 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115748468] [2021-07-05 02:50:53,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 02:50:53,154 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 02:50:53,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 02:50:53,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:53,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-05 02:50:53,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:53,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 02:50:53,183 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 02:50:53,183 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115748468] [2021-07-05 02:50:53,196 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115748468] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 02:50:53,197 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 02:50:53,197 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-05 02:50:53,197 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760300208] [2021-07-05 02:50:53,197 INFO L425 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-05 02:50:53,197 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 02:50:53,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-05 02:50:53,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-05 02:50:53,199 INFO L87 Difference]: Start difference. First operand has 31 states, 27 states have (on average 1.6296296296296295) internal successors, (44), 30 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 02:50:53,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 02:50:53,243 INFO L93 Difference]: Finished difference Result 71 states and 96 transitions. [2021-07-05 02:50:53,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-05 02:50:53,243 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-07-05 02:50:53,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 02:50:53,244 INFO L225 Difference]: With dead ends: 71 [2021-07-05 02:50:53,244 INFO L226 Difference]: Without dead ends: 27 [2021-07-05 02:50:53,244 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-05 02:50:53,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-07-05 02:50:53,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 20. [2021-07-05 02:50:53,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 19 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 02:50:53,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2021-07-05 02:50:53,247 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 17 [2021-07-05 02:50:53,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 02:50:53,247 INFO L442 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2021-07-05 02:50:53,247 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 02:50:53,247 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2021-07-05 02:50:53,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-07-05 02:50:53,247 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 02:50:53,247 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 02:50:53,247 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-07-05 02:50:53,248 INFO L374 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 02:50:53,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 02:50:53,248 INFO L82 PathProgramCache]: Analyzing trace with hash 394194232, now seen corresponding path program 1 times [2021-07-05 02:50:53,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 02:50:53,248 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230713911] [2021-07-05 02:50:53,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 02:50:53,248 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 02:50:53,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 02:50:53,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:53,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 02:50:53,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 02:50:53,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:53,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 02:50:53,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 02:50:53,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:53,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 02:50:53,320 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 02:50:53,320 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230713911] [2021-07-05 02:50:53,321 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230713911] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 02:50:53,321 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 02:50:53,321 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-05 02:50:53,321 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062423788] [2021-07-05 02:50:53,321 INFO L425 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-05 02:50:53,321 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 02:50:53,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-05 02:50:53,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-05 02:50:53,322 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 02:50:53,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 02:50:53,400 INFO L93 Difference]: Finished difference Result 60 states and 70 transitions. [2021-07-05 02:50:53,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-05 02:50:53,401 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-07-05 02:50:53,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 02:50:53,402 INFO L225 Difference]: With dead ends: 60 [2021-07-05 02:50:53,402 INFO L226 Difference]: Without dead ends: 58 [2021-07-05 02:50:53,405 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 57.2ms TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-07-05 02:50:53,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2021-07-05 02:50:53,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 22. [2021-07-05 02:50:53,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 21 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 02:50:53,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2021-07-05 02:50:53,409 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 17 [2021-07-05 02:50:53,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 02:50:53,410 INFO L442 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2021-07-05 02:50:53,410 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 02:50:53,410 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2021-07-05 02:50:53,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-07-05 02:50:53,410 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 02:50:53,410 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 02:50:53,410 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-07-05 02:50:53,410 INFO L374 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 02:50:53,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 02:50:53,411 INFO L82 PathProgramCache]: Analyzing trace with hash 411204893, now seen corresponding path program 1 times [2021-07-05 02:50:53,411 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 02:50:53,411 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177158688] [2021-07-05 02:50:53,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 02:50:53,411 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 02:50:53,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 02:50:53,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:53,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-05 02:50:53,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-05 02:50:53,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-05 02:50:53,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-05 02:50:53,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-05 02:50:53,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:53,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 02:50:53,516 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 02:50:53,516 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177158688] [2021-07-05 02:50:53,516 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177158688] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 02:50:53,516 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 02:50:53,516 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-05 02:50:53,516 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203053385] [2021-07-05 02:50:53,517 INFO L425 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-05 02:50:53,517 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 02:50:53,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-05 02:50:53,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-07-05 02:50:53,518 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 02:50:53,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 02:50:53,570 INFO L93 Difference]: Finished difference Result 49 states and 55 transitions. [2021-07-05 02:50:53,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-05 02:50:53,571 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-07-05 02:50:53,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 02:50:53,571 INFO L225 Difference]: With dead ends: 49 [2021-07-05 02:50:53,571 INFO L226 Difference]: Without dead ends: 34 [2021-07-05 02:50:53,572 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 48.9ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-07-05 02:50:53,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-07-05 02:50:53,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 25. [2021-07-05 02:50:53,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.125) internal successors, (27), 24 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 02:50:53,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2021-07-05 02:50:53,593 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 17 [2021-07-05 02:50:53,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 02:50:53,594 INFO L442 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2021-07-05 02:50:53,594 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 02:50:53,594 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2021-07-05 02:50:53,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-07-05 02:50:53,595 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 02:50:53,595 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 02:50:53,596 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-07-05 02:50:53,596 INFO L374 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 02:50:53,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 02:50:53,597 INFO L82 PathProgramCache]: Analyzing trace with hash -654397132, now seen corresponding path program 1 times [2021-07-05 02:50:53,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 02:50:53,597 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530738093] [2021-07-05 02:50:53,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 02:50:53,597 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 02:50:53,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 02:50:53,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:53,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-05 02:50:53,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-05 02:50:53,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-05 02:50:53,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-05 02:50:53,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-05 02:50:53,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:53,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 02:50:53,660 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 02:50:53,661 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530738093] [2021-07-05 02:50:53,661 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530738093] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 02:50:53,661 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 02:50:53,661 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-05 02:50:53,661 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901402832] [2021-07-05 02:50:53,662 INFO L425 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-05 02:50:53,662 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 02:50:53,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-05 02:50:53,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-07-05 02:50:53,666 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 02:50:53,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 02:50:53,715 INFO L93 Difference]: Finished difference Result 37 states and 41 transitions. [2021-07-05 02:50:53,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-05 02:50:53,716 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-07-05 02:50:53,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 02:50:53,717 INFO L225 Difference]: With dead ends: 37 [2021-07-05 02:50:53,717 INFO L226 Difference]: Without dead ends: 25 [2021-07-05 02:50:53,717 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 31.1ms TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-07-05 02:50:53,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-07-05 02:50:53,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2021-07-05 02:50:53,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.0833333333333333) internal successors, (26), 24 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 02:50:53,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2021-07-05 02:50:53,719 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 18 [2021-07-05 02:50:53,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 02:50:53,719 INFO L442 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2021-07-05 02:50:53,720 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 02:50:53,720 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2021-07-05 02:50:53,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-07-05 02:50:53,720 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 02:50:53,720 INFO L525 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 02:50:53,720 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-07-05 02:50:53,720 INFO L374 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 02:50:53,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 02:50:53,721 INFO L82 PathProgramCache]: Analyzing trace with hash -154103352, now seen corresponding path program 1 times [2021-07-05 02:50:53,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 02:50:53,721 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355566681] [2021-07-05 02:50:53,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 02:50:53,721 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 02:50:53,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 02:50:53,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:53,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-05 02:50:53,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-05 02:50:53,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-05 02:50:53,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-05 02:50:53,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-05 02:50:53,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-05 02:50:53,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:53,819 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 02:50:53,819 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 02:50:53,820 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355566681] [2021-07-05 02:50:53,820 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355566681] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-05 02:50:53,820 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2079143481] [2021-07-05 02:50:53,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 02:50:53,820 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-05 02:50:53,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-05 02:50:53,831 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-07-05 02:50:53,832 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-07-05 02:50:53,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 02:50:53,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 7 conjunts are in the unsatisfiable core [2021-07-05 02:50:53,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-05 02:50:53,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:53,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:53,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:53,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:53,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:53,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:53,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:53,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:53,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:53,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:53,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:53,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:53,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-05 02:50:53,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,936 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 02:50:53,940 INFO L142 QuantifierPusher]: treesize reduction 3, result has 70.0 percent of original size [2021-07-05 02:50:53,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-05 02:50:53,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-07-05 02:50:53,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:53,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:53,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:53,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:53,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:53,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:53,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:53,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:53,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:53,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:53,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:53,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:53,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:53,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:53,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:53,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:53,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:53,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:53,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:53,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:53,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:53,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:53,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:53,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:53,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:53,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:53,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:53,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:53,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:53,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:53,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-05 02:50:53,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 02:50:53,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-07-05 02:50:53,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-05 02:50:53,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-05 02:50:53,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:53,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-05 02:50:54,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:54,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-05 02:50:54,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:54,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-05 02:50:54,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:54,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-05 02:50:54,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:54,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-05 02:50:54,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:54,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-05 02:50:54,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:54,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-05 02:50:54,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:54,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-05 02:50:54,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:54,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-05 02:50:54,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:54,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-05 02:50:54,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:54,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-05 02:50:54,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:54,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-05 02:50:54,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:54,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-05 02:50:54,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:54,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-05 02:50:54,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:54,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-05 02:50:54,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:54,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-05 02:50:54,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:54,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-05 02:50:54,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:54,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-05 02:50:54,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:54,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-05 02:50:54,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:54,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-05 02:50:54,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:54,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-05 02:50:54,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:54,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-07-05 02:50:54,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:54,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-07-05 02:50:54,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:54,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-07-05 02:50:54,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:54,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-07-05 02:50:54,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:54,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-07-05 02:50:54,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:54,087 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 02:50:54,089 INFO L142 QuantifierPusher]: treesize reduction 13, result has 80.0 percent of original size [2021-07-05 02:50:54,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-07-05 02:50:54,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-07-05 02:50:54,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:54,096 INFO L147 QuantifierPusher]: treesize reduction 34, result has 45.2 percent of original size 28 [2021-07-05 02:50:54,097 INFO L142 QuantifierPusher]: treesize reduction 34, result has 45.2 percent of original size [2021-07-05 02:50:54,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-07-05 02:50:54,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:54,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-07-05 02:50:54,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:54,151 INFO L849 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-07-05 02:50:54,165 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 02:50:54,168 INFO L142 QuantifierPusher]: treesize reduction 12, result has 91.7 percent of original size [2021-07-05 02:50:54,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-07-05 02:50:54,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-07-05 02:50:54,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:54,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:54,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:54,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:54,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:54,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:54,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:54,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:54,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:54,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:54,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:54,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:54,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:54,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:54,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:54,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:54,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:54,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:54,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:54,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:54,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:54,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:54,200 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 02:50:54,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2079143481] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-05 02:50:54,200 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-05 02:50:54,200 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-07-05 02:50:54,200 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84454573] [2021-07-05 02:50:54,201 INFO L425 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-05 02:50:54,201 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 02:50:54,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-05 02:50:54,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-07-05 02:50:54,202 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand has 10 states, 10 states have (on average 4.2) internal successors, (42), 10 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 02:50:54,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 02:50:54,404 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2021-07-05 02:50:54,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-05 02:50:54,405 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.2) internal successors, (42), 10 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-07-05 02:50:54,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 02:50:54,405 INFO L225 Difference]: With dead ends: 32 [2021-07-05 02:50:54,405 INFO L226 Difference]: Without dead ends: 0 [2021-07-05 02:50:54,405 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 204.4ms TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2021-07-05 02:50:54,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-05 02:50:54,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-05 02:50:54,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 02:50:54,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-05 02:50:54,406 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2021-07-05 02:50:54,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 02:50:54,406 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-05 02:50:54,406 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 4.2) internal successors, (42), 10 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 02:50:54,406 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-05 02:50:54,406 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-05 02:50:54,406 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-07-05 02:50:54,407 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:50:54,412 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:50:54,412 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:50:54,414 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:50:54,415 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:50:54,416 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:50:54,416 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:50:54,424 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:50:54,427 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:50:54,560 INFO L762 garLoopResultBuilder]: For program point L31(lines 31 147) no Hoare annotation was computed. [2021-07-05 02:50:54,560 INFO L762 garLoopResultBuilder]: For program point L60(lines 60 93) no Hoare annotation was computed. [2021-07-05 02:50:54,560 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 73) no Hoare annotation was computed. [2021-07-05 02:50:54,560 INFO L758 garLoopResultBuilder]: At program point L151(lines 29 152) the Hoare annotation is: false [2021-07-05 02:50:54,560 INFO L762 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2021-07-05 02:50:54,560 INFO L762 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2021-07-05 02:50:54,560 INFO L762 garLoopResultBuilder]: For program point L40(lines 40 139) no Hoare annotation was computed. [2021-07-05 02:50:54,560 INFO L765 garLoopResultBuilder]: At program point L131(lines 98 132) the Hoare annotation is: true [2021-07-05 02:50:54,561 INFO L762 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-07-05 02:50:54,561 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-07-05 02:50:54,561 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-07-05 02:50:54,561 INFO L765 garLoopResultBuilder]: At program point L156(lines 26 157) the Hoare annotation is: true [2021-07-05 02:50:54,561 INFO L762 garLoopResultBuilder]: For program point L57(lines 57 133) no Hoare annotation was computed. [2021-07-05 02:50:54,561 INFO L762 garLoopResultBuilder]: For program point L24(lines 24 162) no Hoare annotation was computed. [2021-07-05 02:50:54,561 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 42) no Hoare annotation was computed. [2021-07-05 02:50:54,561 INFO L765 garLoopResultBuilder]: At program point L119(lines 99 128) the Hoare annotation is: true [2021-07-05 02:50:54,561 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-07-05 02:50:54,561 INFO L762 garLoopResultBuilder]: For program point L62(lines 62 88) no Hoare annotation was computed. [2021-07-05 02:50:54,561 INFO L762 garLoopResultBuilder]: For program point L29(lines 29 152) no Hoare annotation was computed. [2021-07-05 02:50:54,561 INFO L758 garLoopResultBuilder]: At program point L87(lines 62 88) the Hoare annotation is: (let ((.cse0 (mod (+ ULTIMATE.start_main_~main__index2~0 1) 4294967296))) (and (not (= ULTIMATE.start_main_~main____CPAchecker_TMP_0~1 0)) (< .cse0 100000) (<= (+ (* 4294967296 (div (+ ULTIMATE.start_main_~main__index1~0 (* (div ULTIMATE.start_main_~main__index2~0 4294967296) 4294967296) (* ULTIMATE.start_main_~main__index2~0 (- 1)) 4294967296) 4294967296)) 1) ULTIMATE.start_main_~main__index1~0) (< 0 .cse0))) [2021-07-05 02:50:54,561 INFO L762 garLoopResultBuilder]: For program point L21(lines 21 167) no Hoare annotation was computed. [2021-07-05 02:50:54,561 INFO L762 garLoopResultBuilder]: For program point L50(lines 50 138) no Hoare annotation was computed. [2021-07-05 02:50:54,561 INFO L758 garLoopResultBuilder]: At program point L79(lines 46 139) the Hoare annotation is: (let ((.cse0 (* 4294967296 (div ULTIMATE.start_main_~main__index2~0 4294967296)))) (and (<= ULTIMATE.start_main_~main__index1~0 (+ 99998 (* 4294967296 (div ULTIMATE.start_main_~main__index1~0 4294967296)))) (<= (+ .cse0 1) ULTIMATE.start_main_~main__index2~0) (<= ULTIMATE.start_main_~main__index2~0 (+ 99999 .cse0)))) [2021-07-05 02:50:54,561 INFO L762 garLoopResultBuilder]: For program point L108(lines 108 120) no Hoare annotation was computed. [2021-07-05 02:50:54,561 INFO L762 garLoopResultBuilder]: For program point L42(line 42) no Hoare annotation was computed. [2021-07-05 02:50:54,561 INFO L762 garLoopResultBuilder]: For program point L71(lines 71 80) no Hoare annotation was computed. [2021-07-05 02:50:54,562 INFO L765 garLoopResultBuilder]: At program point L166(lines 14 168) the Hoare annotation is: true [2021-07-05 02:50:54,562 INFO L758 garLoopResultBuilder]: At program point L92(lines 60 93) the Hoare annotation is: false [2021-07-05 02:50:54,562 INFO L762 garLoopResultBuilder]: For program point L26(lines 26 157) no Hoare annotation was computed. [2021-07-05 02:50:54,562 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 110) no Hoare annotation was computed. [2021-07-05 02:50:54,562 INFO L758 garLoopResultBuilder]: At program point L146(lines 31 147) the Hoare annotation is: (let ((.cse0 (* 4294967296 (div ULTIMATE.start_main_~main__index1~0 4294967296))) (.cse1 (* 4294967296 (div ULTIMATE.start_main_~main__index2~0 4294967296)))) (and (<= ULTIMATE.start_main_~main__index1~0 (+ 99999 .cse0)) (<= ULTIMATE.start_main_~main__index1~0 (+ 99998 .cse0)) (<= (+ .cse1 1) ULTIMATE.start_main_~main__index2~0) (<= ULTIMATE.start_main_~main__index2~0 (+ 99999 .cse1)) (= ULTIMATE.start_main_~main____CPAchecker_TMP_0~0 1))) [2021-07-05 02:50:54,581 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-07-05 02:50:54,762 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-07-05 02:50:54,763 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-05 02:50:54,763 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION was SAFE (2/3) [2021-07-05 02:50:54,764 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-05 02:50:54,765 INFO L329 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-05 02:50:54,765 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-05 02:50:54,765 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 27 states have (on average 1.6296296296296295) internal successors, (44), 30 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 02:50:54,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-07-05 02:50:54,766 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 02:50:54,766 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 02:50:54,766 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 02:50:54,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 02:50:54,766 INFO L82 PathProgramCache]: Analyzing trace with hash -551124073, now seen corresponding path program 1 times [2021-07-05 02:50:54,766 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 02:50:54,766 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405153918] [2021-07-05 02:50:54,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 02:50:54,767 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 02:50:54,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 02:50:54,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:54,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:54,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:54,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 02:50:54,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:54,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:54,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 02:50:54,787 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 02:50:54,787 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405153918] [2021-07-05 02:50:54,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405153918] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 02:50:54,787 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 02:50:54,787 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-05 02:50:54,788 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273430863] [2021-07-05 02:50:54,788 INFO L425 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-05 02:50:54,788 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 02:50:54,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-05 02:50:54,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-05 02:50:54,789 INFO L87 Difference]: Start difference. First operand has 31 states, 27 states have (on average 1.6296296296296295) internal successors, (44), 30 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 02:50:54,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 02:50:54,794 INFO L93 Difference]: Finished difference Result 46 states and 61 transitions. [2021-07-05 02:50:54,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-05 02:50:54,795 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-07-05 02:50:54,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 02:50:54,795 INFO L225 Difference]: With dead ends: 46 [2021-07-05 02:50:54,795 INFO L226 Difference]: Without dead ends: 25 [2021-07-05 02:50:54,795 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-05 02:50:54,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-07-05 02:50:54,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 23. [2021-07-05 02:50:54,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 22 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 02:50:54,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 28 transitions. [2021-07-05 02:50:54,797 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 28 transitions. Word has length 9 [2021-07-05 02:50:54,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 02:50:54,797 INFO L442 AbstractCegarLoop]: Abstraction has 23 states and 28 transitions. [2021-07-05 02:50:54,797 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 02:50:54,798 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2021-07-05 02:50:54,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-07-05 02:50:54,798 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 02:50:54,798 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 02:50:54,798 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-07-05 02:50:54,798 INFO L374 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 02:50:54,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 02:50:54,799 INFO L82 PathProgramCache]: Analyzing trace with hash -224095823, now seen corresponding path program 1 times [2021-07-05 02:50:54,799 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 02:50:54,799 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955188728] [2021-07-05 02:50:54,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 02:50:54,799 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 02:50:54,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 02:50:54,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:54,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:54,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:54,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-05 02:50:54,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:54,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:54,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 02:50:54,818 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 02:50:54,818 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955188728] [2021-07-05 02:50:54,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955188728] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 02:50:54,818 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 02:50:54,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-05 02:50:54,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086384343] [2021-07-05 02:50:54,819 INFO L425 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-05 02:50:54,819 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 02:50:54,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-05 02:50:54,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-05 02:50:54,820 INFO L87 Difference]: Start difference. First operand 23 states and 28 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 02:50:54,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 02:50:54,837 INFO L93 Difference]: Finished difference Result 44 states and 52 transitions. [2021-07-05 02:50:54,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-05 02:50:54,838 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-07-05 02:50:54,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 02:50:54,838 INFO L225 Difference]: With dead ends: 44 [2021-07-05 02:50:54,838 INFO L226 Difference]: Without dead ends: 28 [2021-07-05 02:50:54,839 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-05 02:50:54,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-07-05 02:50:54,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 23. [2021-07-05 02:50:54,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 22 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 02:50:54,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2021-07-05 02:50:54,843 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 16 [2021-07-05 02:50:54,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 02:50:54,844 INFO L442 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2021-07-05 02:50:54,844 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 02:50:54,844 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2021-07-05 02:50:54,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-07-05 02:50:54,845 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 02:50:54,845 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 02:50:54,845 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-07-05 02:50:54,845 INFO L374 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 02:50:54,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 02:50:54,845 INFO L82 PathProgramCache]: Analyzing trace with hash 588886092, now seen corresponding path program 1 times [2021-07-05 02:50:54,846 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 02:50:54,846 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44740772] [2021-07-05 02:50:54,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 02:50:54,846 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 02:50:54,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 02:50:54,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:54,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:54,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:54,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-05 02:50:54,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:54,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-07-05 02:50:54,952 INFO L142 QuantifierPusher]: treesize reduction 9, result has 82.4 percent of original size [2021-07-05 02:50:54,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-07-05 02:50:54,971 INFO L142 QuantifierPusher]: treesize reduction 188, result has 28.2 percent of original size [2021-07-05 02:50:54,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-07-05 02:50:55,009 INFO L142 QuantifierPusher]: treesize reduction 1897, result has 14.7 percent of original size [2021-07-05 02:50:55,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 328 [2021-07-05 02:50:55,073 INFO L142 QuantifierPusher]: treesize reduction 1897, result has 14.0 percent of original size [2021-07-05 02:50:55,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 309 [2021-07-05 02:50:55,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 02:50:55,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:55,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 02:50:55,090 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 02:50:55,090 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44740772] [2021-07-05 02:50:55,090 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44740772] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 02:50:55,091 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 02:50:55,091 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-05 02:50:55,091 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551551199] [2021-07-05 02:50:55,091 INFO L425 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-05 02:50:55,091 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 02:50:55,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-05 02:50:55,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-07-05 02:50:55,092 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 02:50:55,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 02:50:55,178 INFO L93 Difference]: Finished difference Result 39 states and 47 transitions. [2021-07-05 02:50:55,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-05 02:50:55,178 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-07-05 02:50:55,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 02:50:55,178 INFO L225 Difference]: With dead ends: 39 [2021-07-05 02:50:55,179 INFO L226 Difference]: Without dead ends: 23 [2021-07-05 02:50:55,179 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 152.2ms TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2021-07-05 02:50:55,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-07-05 02:50:55,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2021-07-05 02:50:55,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.0909090909090908) internal successors, (24), 22 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 02:50:55,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2021-07-05 02:50:55,181 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 16 [2021-07-05 02:50:55,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 02:50:55,181 INFO L442 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2021-07-05 02:50:55,181 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 02:50:55,181 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2021-07-05 02:50:55,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-07-05 02:50:55,182 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 02:50:55,182 INFO L525 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 02:50:55,182 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-07-05 02:50:55,182 INFO L374 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 02:50:55,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 02:50:55,183 INFO L82 PathProgramCache]: Analyzing trace with hash -1016031163, now seen corresponding path program 1 times [2021-07-05 02:50:55,183 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 02:50:55,183 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771200549] [2021-07-05 02:50:55,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 02:50:55,183 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 02:50:55,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 02:50:55,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:55,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-05 02:50:55,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-05 02:50:55,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-07-05 02:50:55,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-05 02:50:55,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-07-05 02:50:55,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:55,255 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 02:50:55,255 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 02:50:55,255 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771200549] [2021-07-05 02:50:55,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771200549] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-05 02:50:55,255 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [732766080] [2021-07-05 02:50:55,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 02:50:55,255 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-05 02:50:55,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-05 02:50:55,256 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-07-05 02:50:55,257 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-07-05 02:50:55,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 02:50:55,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 10 conjunts are in the unsatisfiable core [2021-07-05 02:50:55,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-05 02:50:55,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:55,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:55,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:55,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:55,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:55,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:55,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:55,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:55,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:55,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:55,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:55,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:55,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:55,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:55,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:55,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:55,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-05 02:50:55,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-05 02:50:55,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-05 02:50:55,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-05 02:50:55,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-07-05 02:50:55,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-07-05 02:50:55,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-07-05 02:50:55,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-07-05 02:50:55,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-07-05 02:50:55,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-07-05 02:50:55,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-07-05 02:50:55,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-07-05 02:50:55,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-07-05 02:50:55,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-07-05 02:50:55,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-07-05 02:50:55,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-07-05 02:50:55,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-07-05 02:50:55,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-07-05 02:50:55,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-07-05 02:50:55,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-07-05 02:50:55,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-07-05 02:50:55,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-07-05 02:50:55,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-07-05 02:50:55,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-07-05 02:50:55,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-07-05 02:50:55,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-07-05 02:50:55,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-07-05 02:50:55,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-07-05 02:50:55,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-07-05 02:50:55,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-07-05 02:50:55,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-07-05 02:50:55,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-07-05 02:50:55,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-07-05 02:50:55,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-07-05 02:50:55,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-07-05 02:50:55,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-07-05 02:50:55,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-07-05 02:50:55,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-07-05 02:50:55,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-07-05 02:50:55,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-07-05 02:50:55,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-07-05 02:50:55,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-07-05 02:50:55,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-07-05 02:50:55,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-07-05 02:50:55,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-07-05 02:50:55,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,370 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 02:50:55,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-07-05 02:50:55,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-07-05 02:50:55,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:55,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:55,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:55,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:55,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:50:55,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:50:55,380 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 02:50:55,380 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [732766080] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-05 02:50:55,380 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-05 02:50:55,380 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 7 [2021-07-05 02:50:55,380 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830925183] [2021-07-05 02:50:55,381 INFO L425 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-05 02:50:55,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 02:50:55,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-05 02:50:55,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-07-05 02:50:55,381 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 02:50:55,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 02:50:55,472 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2021-07-05 02:50:55,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-05 02:50:55,473 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-07-05 02:50:55,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 02:50:55,473 INFO L225 Difference]: With dead ends: 26 [2021-07-05 02:50:55,473 INFO L226 Difference]: Without dead ends: 0 [2021-07-05 02:50:55,473 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 70.6ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-07-05 02:50:55,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-05 02:50:55,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-05 02:50:55,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 02:50:55,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-05 02:50:55,473 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2021-07-05 02:50:55,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 02:50:55,474 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-05 02:50:55,474 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 02:50:55,474 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-05 02:50:55,474 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-05 02:50:55,474 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-07-05 02:50:55,474 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:50:55,476 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:50:55,476 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:50:55,479 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:50:55,480 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:50:55,483 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:50:55,484 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:50:55,484 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:50:55,485 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:50:55,628 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2021-07-05 02:50:55,748 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2021-07-05 02:50:55,794 INFO L762 garLoopResultBuilder]: For program point L31(lines 31 147) no Hoare annotation was computed. [2021-07-05 02:50:55,794 INFO L762 garLoopResultBuilder]: For program point L60(lines 60 93) no Hoare annotation was computed. [2021-07-05 02:50:55,795 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 73) no Hoare annotation was computed. [2021-07-05 02:50:55,795 INFO L758 garLoopResultBuilder]: At program point L151(lines 29 152) the Hoare annotation is: false [2021-07-05 02:50:55,795 INFO L762 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2021-07-05 02:50:55,795 INFO L762 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2021-07-05 02:50:55,795 INFO L762 garLoopResultBuilder]: For program point L40(lines 40 139) no Hoare annotation was computed. [2021-07-05 02:50:55,795 INFO L765 garLoopResultBuilder]: At program point L131(lines 98 132) the Hoare annotation is: true [2021-07-05 02:50:55,795 INFO L762 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-07-05 02:50:55,795 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-07-05 02:50:55,795 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-07-05 02:50:55,795 INFO L758 garLoopResultBuilder]: At program point L156(lines 26 157) the Hoare annotation is: (or (= ULTIMATE.start_main_~main__loop_entered~0 0) (and (<= ULTIMATE.start_main_~main__index1~0 (+ ULTIMATE.start_main_~main__index2~0 (* 4294967296 (div (+ 99998 (* (div (+ (- 1) ULTIMATE.start_main_~main__index1~0) 4294967296) 4294967296) (* ULTIMATE.start_main_~main__index2~0 (- 1))) 4294967296)) 1)) (let ((.cse0 (div ULTIMATE.start_main_~main__index2~0 4294967296)) (.cse1 (div ULTIMATE.start_main_~main__index1~0 4294967296))) (or (<= (+ ULTIMATE.start_main_~main__index1~0 (* 4294967296 .cse0)) (+ ULTIMATE.start_main_~main__index2~0 (* 4294967296 .cse1))) (let ((.cse6 (select |#memory_int| |ULTIMATE.start_main_~#main__array~0.base|))) (let ((.cse4 (select .cse6 (+ |ULTIMATE.start_main_~#main__array~0.offset| (* .cse1 (- 17179869184)) (* ULTIMATE.start_main_~main__index1~0 4)))) (.cse5 (select .cse6 (+ |ULTIMATE.start_main_~#main__array~0.offset| (* ULTIMATE.start_main_~main__index2~0 4) (* .cse0 (- 17179869184)))))) (let ((.cse3 (* 4294967296 (div .cse5 4294967296))) (.cse2 (+ .cse5 (* 4294967296 (div .cse4 4294967296))))) (and (< .cse2 (+ .cse3 .cse4 1)) (<= (+ .cse3 .cse4) .cse2))))))))) [2021-07-05 02:50:55,795 INFO L762 garLoopResultBuilder]: For program point L57(lines 57 133) no Hoare annotation was computed. [2021-07-05 02:50:55,795 INFO L762 garLoopResultBuilder]: For program point L24(lines 24 162) no Hoare annotation was computed. [2021-07-05 02:50:55,795 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 42) no Hoare annotation was computed. [2021-07-05 02:50:55,796 INFO L758 garLoopResultBuilder]: At program point L119(lines 99 128) the Hoare annotation is: (let ((.cse8 (div ULTIMATE.start_main_~main__index1~0 4294967296)) (.cse7 (div ULTIMATE.start_main_~main__index2~0 4294967296))) (let ((.cse0 (* 4294967296 .cse7)) (.cse1 (+ ULTIMATE.start_main_~main__index2~0 (* 4294967296 .cse8)))) (or (and (<= (+ ULTIMATE.start_main_~main__index1~0 .cse0 1) .cse1) (<= ULTIMATE.start_main_~main__index2~0 (+ 99999 .cse0)) (not (= ULTIMATE.start_main_~__VERIFIER_assert__cond~2 0))) (and (<= ULTIMATE.start_main_~main__index1~0 (+ ULTIMATE.start_main_~main__index2~0 (* 4294967296 (div (+ 99998 (* (div (+ (- 1) ULTIMATE.start_main_~main__index1~0) 4294967296) 4294967296) (* ULTIMATE.start_main_~main__index2~0 (- 1))) 4294967296)) 1)) (or (<= (+ ULTIMATE.start_main_~main__index1~0 .cse0) .cse1) (let ((.cse6 (select |#memory_int| |ULTIMATE.start_main_~#main__array~0.base|))) (let ((.cse4 (select .cse6 (+ |ULTIMATE.start_main_~#main__array~0.offset| (* .cse8 (- 17179869184)) (* ULTIMATE.start_main_~main__index1~0 4)))) (.cse5 (select .cse6 (+ |ULTIMATE.start_main_~#main__array~0.offset| (* ULTIMATE.start_main_~main__index2~0 4) (* .cse7 (- 17179869184)))))) (let ((.cse3 (* 4294967296 (div .cse5 4294967296))) (.cse2 (+ .cse5 (* 4294967296 (div .cse4 4294967296))))) (and (< .cse2 (+ .cse3 .cse4 1)) (<= (+ .cse3 .cse4) .cse2)))))))))) [2021-07-05 02:50:55,796 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-07-05 02:50:55,796 INFO L762 garLoopResultBuilder]: For program point L62(lines 62 88) no Hoare annotation was computed. [2021-07-05 02:50:55,796 INFO L762 garLoopResultBuilder]: For program point L29(lines 29 152) no Hoare annotation was computed. [2021-07-05 02:50:55,796 INFO L758 garLoopResultBuilder]: At program point L87(lines 62 88) the Hoare annotation is: (let ((.cse0 (div ULTIMATE.start_main_~main__index2~0 4294967296)) (.cse2 (* ULTIMATE.start_main_~main__index2~0 (- 1))) (.cse1 (mod (+ ULTIMATE.start_main_~main__index2~0 1) 4294967296))) (and (<= (+ ULTIMATE.start_main_~main__index1~0 (* 4294967296 .cse0) 1) (+ ULTIMATE.start_main_~main__index2~0 (* 4294967296 (div ULTIMATE.start_main_~main__index1~0 4294967296)))) (not (= ULTIMATE.start_main_~main____CPAchecker_TMP_0~1 0)) (< .cse1 100000) (<= (+ (* 4294967296 (div (+ ULTIMATE.start_main_~main__index1~0 (* .cse0 4294967296) .cse2 4294967296) 4294967296)) 1) ULTIMATE.start_main_~main__index1~0) (<= ULTIMATE.start_main_~main__index1~0 (+ ULTIMATE.start_main_~main__index2~0 (* 4294967296 (div (+ 99998 (* (div (+ (- 1) ULTIMATE.start_main_~main__index1~0) 4294967296) 4294967296) .cse2) 4294967296)) 1)) (< 0 .cse1))) [2021-07-05 02:50:55,796 INFO L762 garLoopResultBuilder]: For program point L21(lines 21 167) no Hoare annotation was computed. [2021-07-05 02:50:55,796 INFO L762 garLoopResultBuilder]: For program point L50(lines 50 138) no Hoare annotation was computed. [2021-07-05 02:50:55,796 INFO L758 garLoopResultBuilder]: At program point L79(lines 46 139) the Hoare annotation is: (let ((.cse1 (* 4294967296 (div ULTIMATE.start_main_~main__index1~0 4294967296))) (.cse0 (* 4294967296 (div ULTIMATE.start_main_~main__index2~0 4294967296)))) (and (<= (+ ULTIMATE.start_main_~main__index1~0 .cse0 1) (+ ULTIMATE.start_main_~main__index2~0 .cse1)) (<= ULTIMATE.start_main_~main__index1~0 (+ 99998 .cse1)) (<= (+ .cse0 1) ULTIMATE.start_main_~main__index2~0) (<= ULTIMATE.start_main_~main__index2~0 (+ 99999 .cse0)))) [2021-07-05 02:50:55,796 INFO L762 garLoopResultBuilder]: For program point L108(lines 108 120) no Hoare annotation was computed. [2021-07-05 02:50:55,796 INFO L762 garLoopResultBuilder]: For program point L42(line 42) no Hoare annotation was computed. [2021-07-05 02:50:55,796 INFO L762 garLoopResultBuilder]: For program point L71(lines 71 80) no Hoare annotation was computed. [2021-07-05 02:50:55,796 INFO L765 garLoopResultBuilder]: At program point L166(lines 14 168) the Hoare annotation is: true [2021-07-05 02:50:55,796 INFO L758 garLoopResultBuilder]: At program point L92(lines 60 93) the Hoare annotation is: false [2021-07-05 02:50:55,797 INFO L762 garLoopResultBuilder]: For program point L26(lines 26 157) no Hoare annotation was computed. [2021-07-05 02:50:55,797 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 110) no Hoare annotation was computed. [2021-07-05 02:50:55,797 INFO L758 garLoopResultBuilder]: At program point L146(lines 31 147) the Hoare annotation is: (let ((.cse1 (* 4294967296 (div ULTIMATE.start_main_~main__index1~0 4294967296))) (.cse0 (* 4294967296 (div ULTIMATE.start_main_~main__index2~0 4294967296)))) (and (<= (+ ULTIMATE.start_main_~main__index1~0 .cse0 1) (+ ULTIMATE.start_main_~main__index2~0 .cse1)) (= ULTIMATE.start_main_~main__loop_entered~0 0) (<= ULTIMATE.start_main_~main__index1~0 (+ 99999 .cse1)) (<= ULTIMATE.start_main_~main__index1~0 (+ 99998 .cse1)) (<= (+ .cse0 1) ULTIMATE.start_main_~main__index2~0) (<= ULTIMATE.start_main_~main__index2~0 (+ 99999 .cse0)) (= ULTIMATE.start_main_~main____CPAchecker_TMP_0~0 1))) [2021-07-05 02:50:55,816 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-07-05 02:50:56,008 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-05 02:50:56,009 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-05 02:50:56,009 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION was SAFE (3/3) [2021-07-05 02:50:56,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.07 02:50:56 BoogieIcfgContainer [2021-07-05 02:50:56,025 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-05 02:50:56,025 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-05 02:50:56,025 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-05 02:50:56,026 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-05 02:50:56,026 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.07 02:50:52" (3/4) ... [2021-07-05 02:50:56,036 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-07-05 02:50:56,043 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-07-05 02:50:56,043 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-07-05 02:50:56,043 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-07-05 02:50:56,044 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-07-05 02:50:56,072 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-07-05 02:50:56,072 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-05 02:50:56,073 INFO L168 Benchmark]: Toolchain (without parser) took 4153.43 ms. Allocated memory was 58.7 MB in the beginning and 111.1 MB in the end (delta: 52.4 MB). Free memory was 37.5 MB in the beginning and 71.2 MB in the end (delta: -33.7 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.1 GB. [2021-07-05 02:50:56,073 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 58.7 MB. Free memory is still 40.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-07-05 02:50:56,073 INFO L168 Benchmark]: CACSL2BoogieTranslator took 249.31 ms. Allocated memory is still 58.7 MB. Free memory was 37.3 MB in the beginning and 41.3 MB in the end (delta: -4.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-07-05 02:50:56,073 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.10 ms. Allocated memory is still 58.7 MB. Free memory was 41.3 MB in the beginning and 39.5 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-05 02:50:56,073 INFO L168 Benchmark]: Boogie Preprocessor took 30.08 ms. Allocated memory is still 58.7 MB. Free memory was 39.5 MB in the beginning and 38.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-05 02:50:56,073 INFO L168 Benchmark]: RCFGBuilder took 427.35 ms. Allocated memory was 58.7 MB in the beginning and 75.5 MB in the end (delta: 16.8 MB). Free memory was 38.2 MB in the beginning and 52.6 MB in the end (delta: -14.4 MB). Peak memory consumption was 16.2 MB. Max. memory is 16.1 GB. [2021-07-05 02:50:56,073 INFO L168 Benchmark]: TraceAbstraction took 3364.32 ms. Allocated memory was 75.5 MB in the beginning and 111.1 MB in the end (delta: 35.7 MB). Free memory was 52.3 MB in the beginning and 75.3 MB in the end (delta: -23.1 MB). Peak memory consumption was 41.4 MB. Max. memory is 16.1 GB. [2021-07-05 02:50:56,074 INFO L168 Benchmark]: Witness Printer took 46.76 ms. Allocated memory is still 111.1 MB. Free memory was 75.3 MB in the beginning and 71.2 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-07-05 02:50:56,074 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 58.7 MB. Free memory is still 40.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 249.31 ms. Allocated memory is still 58.7 MB. Free memory was 37.3 MB in the beginning and 41.3 MB in the end (delta: -4.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 31.10 ms. Allocated memory is still 58.7 MB. Free memory was 41.3 MB in the beginning and 39.5 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.08 ms. Allocated memory is still 58.7 MB. Free memory was 39.5 MB in the beginning and 38.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 427.35 ms. Allocated memory was 58.7 MB in the beginning and 75.5 MB in the end (delta: 16.8 MB). Free memory was 38.2 MB in the beginning and 52.6 MB in the end (delta: -14.4 MB). Peak memory consumption was 16.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3364.32 ms. Allocated memory was 75.5 MB in the beginning and 111.1 MB in the end (delta: 35.7 MB). Free memory was 52.3 MB in the beginning and 75.3 MB in the end (delta: -23.1 MB). Peak memory consumption was 41.4 MB. Max. memory is 16.1 GB. * Witness Printer took 46.76 ms. Allocated memory is still 111.1 MB. Free memory was 75.3 MB in the beginning and 71.2 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 42]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 73]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 110]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION CFG has 1 procedures, 31 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 438.2ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 5.8ms, AutomataDifference: 107.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 28.8ms, InitialAbstractionConstructionTime: 13.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 51 SDtfs, 29 SDslu, 31 SDs, 0 SdLazy, 29 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 32.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=0, InterpolantAutomatonStates: 10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 11.4ms AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 24 NumberOfFragments, 21 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 14.0ms HoareSimplificationTime, 9 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 10.5ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 6.4ms SsaConstructionTime, 51.3ms SatisfiabilityAnalysisTime, 111.0ms InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 80 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 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 - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION CFG has 1 procedures, 31 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 1615.8ms, OverallIterations: 5, TraceHistogramMax: 2, EmptinessCheckTime: 2.4ms, AutomataDifference: 441.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 153.4ms, InitialAbstractionConstructionTime: 0.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 98 SDtfs, 172 SDslu, 136 SDs, 0 SdLazy, 138 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 156.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 73 GetRequests, 38 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 344.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=0, InterpolantAutomatonStates: 33, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 30.2ms AutomataMinimizationTime, 5 MinimizatonAttempts, 52 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 21 NumberOfFragments, 100 HoareAnnotationTreeSize, 9 FomulaSimplifications, 53 FormulaSimplificationTreeSizeReduction, 21.0ms HoareSimplificationTime, 9 FomulaSimplificationsInter, 127 FormulaSimplificationTreeSizeReductionInter, 131.3ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 18.0ms SsaConstructionTime, 93.0ms SatisfiabilityAnalysisTime, 591.3ms InterpolantComputationTime, 117 NumberOfCodeBlocks, 117 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 111 ConstructedInterpolants, 0 QuantifiedInterpolants, 593 SizeOfPredicates, 4 NumberOfNonLiveVariables, 124 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 9/12 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 - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION CFG has 1 procedures, 31 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 1244.8ms, OverallIterations: 4, TraceHistogramMax: 2, EmptinessCheckTime: 2.1ms, AutomataDifference: 207.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 320.3ms, InitialAbstractionConstructionTime: 0.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 85 SDtfs, 88 SDslu, 57 SDs, 0 SdLazy, 100 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 101.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 23 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 227.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=0, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 8.2ms AutomataMinimizationTime, 4 MinimizatonAttempts, 7 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 21 NumberOfFragments, 480 HoareAnnotationTreeSize, 9 FomulaSimplifications, 48 FormulaSimplificationTreeSizeReduction, 10.8ms HoareSimplificationTime, 9 FomulaSimplificationsInter, 54 FormulaSimplificationTreeSizeReductionInter, 308.4ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 11.5ms SsaConstructionTime, 84.0ms SatisfiabilityAnalysisTime, 355.0ms InterpolantComputationTime, 77 NumberOfCodeBlocks, 77 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 72 ConstructedInterpolants, 0 QuantifiedInterpolants, 1232 SizeOfPredicates, 2 NumberOfNonLiveVariables, 107 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 2/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: ((main__index1 + 4294967296 * (main__index2 / 4294967296) + 1 <= main__index2 + 4294967296 * (main__index1 / 4294967296) && main__index1 <= 99998 + 4294967296 * (main__index1 / 4294967296)) && 4294967296 * (main__index2 / 4294967296) + 1 <= main__index2) && main__index2 <= 99999 + 4294967296 * (main__index2 / 4294967296) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: main__loop_entered == 0 || (main__index1 <= main__index2 + 4294967296 * ((99998 + (-1 + main__index1) / 4294967296 * 4294967296 + main__index2 * -1) / 4294967296) + 1 && (main__index1 + 4294967296 * (main__index2 / 4294967296) <= main__index2 + 4294967296 * (main__index1 / 4294967296) || (unknown-#memory_int-unknown[main__array][main__array + main__index2 * 4 + main__index2 / 4294967296 * -17179869184] + 4294967296 * (unknown-#memory_int-unknown[main__array][main__array + main__index1 / 4294967296 * -17179869184 + main__index1 * 4] / 4294967296) < 4294967296 * (unknown-#memory_int-unknown[main__array][main__array + main__index2 * 4 + main__index2 / 4294967296 * -17179869184] / 4294967296) + unknown-#memory_int-unknown[main__array][main__array + main__index1 / 4294967296 * -17179869184 + main__index1 * 4] + 1 && 4294967296 * (unknown-#memory_int-unknown[main__array][main__array + main__index2 * 4 + main__index2 / 4294967296 * -17179869184] / 4294967296) + unknown-#memory_int-unknown[main__array][main__array + main__index1 / 4294967296 * -17179869184 + main__index1 * 4] <= unknown-#memory_int-unknown[main__array][main__array + main__index2 * 4 + main__index2 / 4294967296 * -17179869184] + 4294967296 * (unknown-#memory_int-unknown[main__array][main__array + main__index1 / 4294967296 * -17179869184 + main__index1 * 4] / 4294967296)))) - InvariantResult [Line: 60]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: ((main__index1 + 4294967296 * (main__index2 / 4294967296) + 1 <= main__index2 + 4294967296 * (main__index1 / 4294967296) && main__index2 <= 99999 + 4294967296 * (main__index2 / 4294967296)) && !(__VERIFIER_assert__cond == 0)) || (main__index1 <= main__index2 + 4294967296 * ((99998 + (-1 + main__index1) / 4294967296 * 4294967296 + main__index2 * -1) / 4294967296) + 1 && (main__index1 + 4294967296 * (main__index2 / 4294967296) <= main__index2 + 4294967296 * (main__index1 / 4294967296) || (unknown-#memory_int-unknown[main__array][main__array + main__index2 * 4 + main__index2 / 4294967296 * -17179869184] + 4294967296 * (unknown-#memory_int-unknown[main__array][main__array + main__index1 / 4294967296 * -17179869184 + main__index1 * 4] / 4294967296) < 4294967296 * (unknown-#memory_int-unknown[main__array][main__array + main__index2 * 4 + main__index2 / 4294967296 * -17179869184] / 4294967296) + unknown-#memory_int-unknown[main__array][main__array + main__index1 / 4294967296 * -17179869184 + main__index1 * 4] + 1 && 4294967296 * (unknown-#memory_int-unknown[main__array][main__array + main__index2 * 4 + main__index2 / 4294967296 * -17179869184] / 4294967296) + unknown-#memory_int-unknown[main__array][main__array + main__index1 / 4294967296 * -17179869184 + main__index1 * 4] <= unknown-#memory_int-unknown[main__array][main__array + main__index2 * 4 + main__index2 / 4294967296 * -17179869184] + 4294967296 * (unknown-#memory_int-unknown[main__array][main__array + main__index1 / 4294967296 * -17179869184 + main__index1 * 4] / 4294967296)))) - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: ((((main__index1 + 4294967296 * (main__index2 / 4294967296) + 1 <= main__index2 + 4294967296 * (main__index1 / 4294967296) && !(main____CPAchecker_TMP_0 == 0)) && (main__index2 + 1) % 4294967296 < 100000) && 4294967296 * ((main__index1 + main__index2 / 4294967296 * 4294967296 + main__index2 * -1 + 4294967296) / 4294967296) + 1 <= main__index1) && main__index1 <= main__index2 + 4294967296 * ((99998 + (-1 + main__index1) / 4294967296 * 4294967296 + main__index2 * -1) / 4294967296) + 1) && 0 < (main__index2 + 1) % 4294967296 - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: (((((main__index1 + 4294967296 * (main__index2 / 4294967296) + 1 <= main__index2 + 4294967296 * (main__index1 / 4294967296) && main__loop_entered == 0) && main__index1 <= 99999 + 4294967296 * (main__index1 / 4294967296)) && main__index1 <= 99998 + 4294967296 * (main__index1 / 4294967296)) && 4294967296 * (main__index2 / 4294967296) + 1 <= main__index2) && main__index2 <= 99999 + 4294967296 * (main__index2 / 4294967296)) && main____CPAchecker_TMP_0 == 1 - InvariantResult [Line: 98]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-07-05 02:50:56,104 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...