./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 20ed64ec 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+lhb-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 b909ccf6f1c4cf06610031e778229605609d3376 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-26 03:34:07,831 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-26 03:34:07,834 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-26 03:34:07,876 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-26 03:34:07,877 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-26 03:34:07,880 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-26 03:34:07,882 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-26 03:34:07,887 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-26 03:34:07,889 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-26 03:34:07,894 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-26 03:34:07,895 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-26 03:34:07,896 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-26 03:34:07,897 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-26 03:34:07,899 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-26 03:34:07,901 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-26 03:34:07,905 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-26 03:34:07,907 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-26 03:34:07,908 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-26 03:34:07,909 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-26 03:34:07,910 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-26 03:34:07,912 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-26 03:34:07,912 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-26 03:34:07,913 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-26 03:34:07,914 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-26 03:34:07,916 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-26 03:34:07,916 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-26 03:34:07,917 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-26 03:34:07,917 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-26 03:34:07,918 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-26 03:34:07,919 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-26 03:34:07,919 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-26 03:34:07,919 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-26 03:34:07,920 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-26 03:34:07,921 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-26 03:34:07,921 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-26 03:34:07,922 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-26 03:34:07,922 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-26 03:34:07,922 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-26 03:34:07,923 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-26 03:34:07,923 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-26 03:34:07,924 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-26 03:34:07,925 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-26 03:34:07,960 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-26 03:34:07,960 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-26 03:34:07,962 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-26 03:34:07,962 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-26 03:34:07,963 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-26 03:34:07,963 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-26 03:34:07,964 INFO L138 SettingsManager]: * Use SBE=true [2021-08-26 03:34:07,964 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-26 03:34:07,964 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-26 03:34:07,964 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-26 03:34:07,965 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-26 03:34:07,965 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-26 03:34:07,965 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-26 03:34:07,966 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-26 03:34:07,966 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-26 03:34:07,966 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-26 03:34:07,966 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-26 03:34:07,966 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-26 03:34:07,966 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-26 03:34:07,967 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-26 03:34:07,972 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-26 03:34:07,972 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-26 03:34:07,973 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 03:34:07,973 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-26 03:34:07,973 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-26 03:34:07,973 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-26 03:34:07,973 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-26 03:34:07,974 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-26 03:34:07,974 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-26 03:34:07,974 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-26 03:34:07,974 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b909ccf6f1c4cf06610031e778229605609d3376 [2021-08-26 03:34:08,259 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-26 03:34:08,284 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-26 03:34:08,286 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-26 03:34:08,287 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-26 03:34:08,288 INFO L275 PluginConnector]: CDTParser initialized [2021-08-26 03:34:08,289 INFO L432 ainManager$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+lhb-reducer.c [2021-08-26 03:34:08,345 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b4210a05/b30a0d3f04be4cfa8f970443b640486e/FLAGceb3c78f1 [2021-08-26 03:34:08,789 INFO L306 CDTParser]: Found 1 translation units. [2021-08-26 03:34:08,789 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+lhb-reducer.c [2021-08-26 03:34:08,796 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b4210a05/b30a0d3f04be4cfa8f970443b640486e/FLAGceb3c78f1 [2021-08-26 03:34:08,811 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b4210a05/b30a0d3f04be4cfa8f970443b640486e [2021-08-26 03:34:08,817 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-26 03:34:08,819 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-26 03:34:08,820 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-26 03:34:08,821 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-26 03:34:08,823 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-26 03:34:08,824 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 03:34:08" (1/1) ... [2021-08-26 03:34:08,825 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77833538 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:34:08, skipping insertion in model container [2021-08-26 03:34:08,826 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 03:34:08" (1/1) ... [2021-08-26 03:34:08,831 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-26 03:34:08,853 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-26 03:34:08,995 WARN L228 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+lhb-reducer.c[1126,1139] [2021-08-26 03:34:09,002 WARN L228 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+lhb-reducer.c[1880,1893] [2021-08-26 03:34:09,006 WARN L228 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+lhb-reducer.c[2401,2414] [2021-08-26 03:34:09,010 WARN L228 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+lhb-reducer.c[3193,3206] [2021-08-26 03:34:09,011 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 03:34:09,017 INFO L203 MainTranslator]: Completed pre-run [2021-08-26 03:34:09,054 WARN L228 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+lhb-reducer.c[1126,1139] [2021-08-26 03:34:09,058 WARN L228 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+lhb-reducer.c[1880,1893] [2021-08-26 03:34:09,061 WARN L228 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+lhb-reducer.c[2401,2414] [2021-08-26 03:34:09,064 WARN L228 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+lhb-reducer.c[3193,3206] [2021-08-26 03:34:09,065 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 03:34:09,075 INFO L208 MainTranslator]: Completed translation [2021-08-26 03:34:09,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:34:09 WrapperNode [2021-08-26 03:34:09,076 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-26 03:34:09,077 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-26 03:34:09,077 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-26 03:34:09,077 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-26 03:34:09,083 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:34:09" (1/1) ... [2021-08-26 03:34:09,088 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:34:09" (1/1) ... [2021-08-26 03:34:09,106 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-26 03:34:09,107 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-26 03:34:09,107 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-26 03:34:09,107 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-26 03:34:09,115 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:34:09" (1/1) ... [2021-08-26 03:34:09,121 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:34:09" (1/1) ... [2021-08-26 03:34:09,123 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:34:09" (1/1) ... [2021-08-26 03:34:09,125 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:34:09" (1/1) ... [2021-08-26 03:34:09,130 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:34:09" (1/1) ... [2021-08-26 03:34:09,141 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:34:09" (1/1) ... [2021-08-26 03:34:09,143 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:34:09" (1/1) ... [2021-08-26 03:34:09,151 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-26 03:34:09,152 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-26 03:34:09,153 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-26 03:34:09,153 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-26 03:34:09,153 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:34:09" (1/1) ... [2021-08-26 03:34:09,161 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 03:34:09,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 03:34:09,183 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) [2021-08-26 03:34:09,210 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 [2021-08-26 03:34:09,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-26 03:34:09,230 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-26 03:34:09,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-26 03:34:09,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-26 03:34:09,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-26 03:34:09,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-26 03:34:09,471 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-26 03:34:09,472 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-08-26 03:34:09,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 03:34:09 BoogieIcfgContainer [2021-08-26 03:34:09,473 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-26 03:34:09,475 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-26 03:34:09,475 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-26 03:34:09,477 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-26 03:34:09,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 03:34:08" (1/3) ... [2021-08-26 03:34:09,478 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12b86df7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 03:34:09, skipping insertion in model container [2021-08-26 03:34:09,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:34:09" (2/3) ... [2021-08-26 03:34:09,478 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12b86df7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 03:34:09, skipping insertion in model container [2021-08-26 03:34:09,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 03:34:09" (3/3) ... [2021-08-26 03:34:09,479 INFO L111 eAbstractionObserver]: Analyzing ICFG simple_array_index_value_4.i.v+lhb-reducer.c [2021-08-26 03:34:09,483 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-26 03:34:09,483 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-08-26 03:34:09,528 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-26 03:34:09,550 INFO L339 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, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-26 03:34:09,550 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-08-26 03:34:09,577 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 32 states have (on average 1.65625) internal successors, (53), 36 states have internal predecessors, (53), 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) [2021-08-26 03:34:09,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-08-26 03:34:09,581 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 03:34:09,581 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 03:34:09,582 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-08-26 03:34:09,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 03:34:09,586 INFO L82 PathProgramCache]: Analyzing trace with hash -549247241, now seen corresponding path program 1 times [2021-08-26 03:34:09,593 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 03:34:09,593 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771673549] [2021-08-26 03:34:09,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 03:34:09,594 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 03:34:09,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 03:34:09,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 03:34:09,742 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 03:34:09,742 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771673549] [2021-08-26 03:34:09,742 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771673549] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 03:34:09,743 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 03:34:09,743 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-26 03:34:09,744 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637085683] [2021-08-26 03:34:09,748 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-26 03:34:09,748 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 03:34:09,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-26 03:34:09,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 03:34:09,766 INFO L87 Difference]: Start difference. First operand has 37 states, 32 states have (on average 1.65625) internal successors, (53), 36 states have internal predecessors, (53), 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) [2021-08-26 03:34:09,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 03:34:09,801 INFO L93 Difference]: Finished difference Result 51 states and 68 transitions. [2021-08-26 03:34:09,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-26 03:34:09,803 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 [2021-08-26 03:34:09,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 03:34:09,823 INFO L225 Difference]: With dead ends: 51 [2021-08-26 03:34:09,824 INFO L226 Difference]: Without dead ends: 30 [2021-08-26 03:34:09,826 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 03:34:09,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-08-26 03:34:09,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2021-08-26 03:34:09,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 25 states have (on average 1.32) internal successors, (33), 27 states have internal predecessors, (33), 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) [2021-08-26 03:34:09,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 33 transitions. [2021-08-26 03:34:09,856 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 33 transitions. Word has length 9 [2021-08-26 03:34:09,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 03:34:09,856 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 33 transitions. [2021-08-26 03:34:09,856 INFO L471 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) [2021-08-26 03:34:09,857 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2021-08-26 03:34:09,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-08-26 03:34:09,857 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 03:34:09,858 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 03:34:09,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-26 03:34:09,859 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-08-26 03:34:09,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 03:34:09,862 INFO L82 PathProgramCache]: Analyzing trace with hash -2084862863, now seen corresponding path program 1 times [2021-08-26 03:34:09,863 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 03:34:09,864 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637176966] [2021-08-26 03:34:09,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 03:34:09,865 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 03:34:09,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 03:34:09,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 03:34:09,946 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 03:34:09,947 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637176966] [2021-08-26 03:34:09,947 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637176966] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 03:34:09,947 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 03:34:09,947 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-26 03:34:09,948 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419082835] [2021-08-26 03:34:09,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-26 03:34:09,950 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 03:34:09,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-26 03:34:09,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 03:34:09,954 INFO L87 Difference]: Start difference. First operand 28 states and 33 transitions. 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) [2021-08-26 03:34:09,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 03:34:09,987 INFO L93 Difference]: Finished difference Result 56 states and 64 transitions. [2021-08-26 03:34:09,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-26 03:34:09,987 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 [2021-08-26 03:34:09,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 03:34:09,988 INFO L225 Difference]: With dead ends: 56 [2021-08-26 03:34:09,988 INFO L226 Difference]: Without dead ends: 35 [2021-08-26 03:34:09,989 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 03:34:09,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-08-26 03:34:09,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 28. [2021-08-26 03:34:09,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 25 states have (on average 1.28) internal successors, (32), 27 states have internal predecessors, (32), 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) [2021-08-26 03:34:09,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2021-08-26 03:34:09,993 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 10 [2021-08-26 03:34:09,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 03:34:09,994 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2021-08-26 03:34:09,994 INFO L471 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) [2021-08-26 03:34:09,994 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2021-08-26 03:34:09,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-08-26 03:34:09,995 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 03:34:09,995 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 03:34:09,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-26 03:34:09,995 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-08-26 03:34:09,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 03:34:09,996 INFO L82 PathProgramCache]: Analyzing trace with hash 2140661612, now seen corresponding path program 1 times [2021-08-26 03:34:09,996 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 03:34:09,997 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687303168] [2021-08-26 03:34:09,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 03:34:09,997 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 03:34:10,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 03:34:10,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 03:34:10,056 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 03:34:10,056 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687303168] [2021-08-26 03:34:10,057 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687303168] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 03:34:10,057 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 03:34:10,057 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-26 03:34:10,057 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608918671] [2021-08-26 03:34:10,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-26 03:34:10,058 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 03:34:10,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-26 03:34:10,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-26 03:34:10,059 INFO L87 Difference]: Start difference. First operand 28 states and 32 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) [2021-08-26 03:34:10,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 03:34:10,093 INFO L93 Difference]: Finished difference Result 49 states and 56 transitions. [2021-08-26 03:34:10,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-26 03:34:10,094 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 [2021-08-26 03:34:10,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 03:34:10,096 INFO L225 Difference]: With dead ends: 49 [2021-08-26 03:34:10,096 INFO L226 Difference]: Without dead ends: 47 [2021-08-26 03:34:10,096 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.7ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-26 03:34:10,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-08-26 03:34:10,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 30. [2021-08-26 03:34:10,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 29 states have internal predecessors, (34), 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) [2021-08-26 03:34:10,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2021-08-26 03:34:10,106 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 10 [2021-08-26 03:34:10,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 03:34:10,107 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2021-08-26 03:34:10,107 INFO L471 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) [2021-08-26 03:34:10,107 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2021-08-26 03:34:10,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-08-26 03:34:10,108 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 03:34:10,108 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 03:34:10,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-26 03:34:10,109 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-08-26 03:34:10,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 03:34:10,110 INFO L82 PathProgramCache]: Analyzing trace with hash 1998916233, now seen corresponding path program 1 times [2021-08-26 03:34:10,110 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 03:34:10,111 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869347529] [2021-08-26 03:34:10,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 03:34:10,113 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 03:34:10,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 03:34:10,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 03:34:10,166 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 03:34:10,166 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869347529] [2021-08-26 03:34:10,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869347529] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 03:34:10,166 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 03:34:10,167 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-26 03:34:10,167 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561275726] [2021-08-26 03:34:10,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-26 03:34:10,180 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 03:34:10,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-26 03:34:10,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 03:34:10,182 INFO L87 Difference]: Start difference. First operand 30 states and 34 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) [2021-08-26 03:34:10,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 03:34:10,206 INFO L93 Difference]: Finished difference Result 52 states and 59 transitions. [2021-08-26 03:34:10,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-26 03:34:10,206 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 [2021-08-26 03:34:10,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 03:34:10,207 INFO L225 Difference]: With dead ends: 52 [2021-08-26 03:34:10,207 INFO L226 Difference]: Without dead ends: 31 [2021-08-26 03:34:10,208 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 03:34:10,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-08-26 03:34:10,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 25. [2021-08-26 03:34:10,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 24 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) [2021-08-26 03:34:10,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2021-08-26 03:34:10,215 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 11 [2021-08-26 03:34:10,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 03:34:10,215 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2021-08-26 03:34:10,215 INFO L471 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) [2021-08-26 03:34:10,216 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2021-08-26 03:34:10,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-08-26 03:34:10,216 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 03:34:10,216 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 03:34:10,216 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-26 03:34:10,216 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-08-26 03:34:10,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 03:34:10,217 INFO L82 PathProgramCache]: Analyzing trace with hash 588855308, now seen corresponding path program 1 times [2021-08-26 03:34:10,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 03:34:10,217 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020375810] [2021-08-26 03:34:10,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 03:34:10,217 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 03:34:10,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 03:34:11,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 03:34:11,486 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 03:34:11,486 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020375810] [2021-08-26 03:34:11,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020375810] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 03:34:11,487 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 03:34:11,487 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-26 03:34:11,487 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217699058] [2021-08-26 03:34:11,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-26 03:34:11,487 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 03:34:11,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-26 03:34:11,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-08-26 03:34:11,488 INFO L87 Difference]: Start difference. First operand 25 states and 28 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) [2021-08-26 03:34:11,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 03:34:11,897 INFO L93 Difference]: Finished difference Result 43 states and 50 transitions. [2021-08-26 03:34:11,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-26 03:34:11,898 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 [2021-08-26 03:34:11,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 03:34:11,898 INFO L225 Difference]: With dead ends: 43 [2021-08-26 03:34:11,898 INFO L226 Difference]: Without dead ends: 27 [2021-08-26 03:34:11,899 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 334.2ms TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2021-08-26 03:34:11,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-08-26 03:34:11,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2021-08-26 03:34:11,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 24 states have (on average 1.125) internal successors, (27), 25 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) [2021-08-26 03:34:11,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2021-08-26 03:34:11,902 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 16 [2021-08-26 03:34:11,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 03:34:11,903 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2021-08-26 03:34:11,903 INFO L471 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) [2021-08-26 03:34:11,903 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2021-08-26 03:34:11,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-08-26 03:34:11,904 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 03:34:11,904 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 03:34:11,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-26 03:34:11,904 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-08-26 03:34:11,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 03:34:11,905 INFO L82 PathProgramCache]: Analyzing trace with hash 394194232, now seen corresponding path program 1 times [2021-08-26 03:34:11,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 03:34:11,905 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216188582] [2021-08-26 03:34:11,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 03:34:11,906 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 03:34:11,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 03:34:11,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 03:34:11,943 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 03:34:11,943 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216188582] [2021-08-26 03:34:11,944 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216188582] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 03:34:11,944 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 03:34:11,944 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-26 03:34:11,944 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820065731] [2021-08-26 03:34:11,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-26 03:34:11,945 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 03:34:11,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-26 03:34:11,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-26 03:34:11,946 INFO L87 Difference]: Start difference. First operand 26 states and 27 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) [2021-08-26 03:34:11,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 03:34:11,985 INFO L93 Difference]: Finished difference Result 40 states and 42 transitions. [2021-08-26 03:34:11,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-26 03:34:11,986 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 [2021-08-26 03:34:11,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 03:34:11,987 INFO L225 Difference]: With dead ends: 40 [2021-08-26 03:34:11,987 INFO L226 Difference]: Without dead ends: 38 [2021-08-26 03:34:11,987 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 30.8ms TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-08-26 03:34:11,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-08-26 03:34:11,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 24. [2021-08-26 03:34:11,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.0869565217391304) internal successors, (25), 23 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) [2021-08-26 03:34:11,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2021-08-26 03:34:11,991 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 17 [2021-08-26 03:34:11,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 03:34:11,991 INFO L470 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2021-08-26 03:34:11,991 INFO L471 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) [2021-08-26 03:34:11,992 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2021-08-26 03:34:11,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-08-26 03:34:11,992 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 03:34:11,992 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 03:34:11,992 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-26 03:34:11,993 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-08-26 03:34:11,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 03:34:11,993 INFO L82 PathProgramCache]: Analyzing trace with hash 1945950452, now seen corresponding path program 1 times [2021-08-26 03:34:11,993 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 03:34:11,994 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60578487] [2021-08-26 03:34:11,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 03:34:11,994 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 03:34:12,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 03:34:12,099 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 03:34:12,100 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 03:34:12,100 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60578487] [2021-08-26 03:34:12,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60578487] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-26 03:34:12,100 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1999948799] [2021-08-26 03:34:12,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 03:34:12,101 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 03:34:12,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 03:34:12,109 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) [2021-08-26 03:34:12,115 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-08-26 03:34:12,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 03:34:12,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-26 03:34:12,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 03:34:12,328 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 03:34:12,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1999948799] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-26 03:34:12,329 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-26 03:34:12,329 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 7 [2021-08-26 03:34:12,329 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174263966] [2021-08-26 03:34:12,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-26 03:34:12,330 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 03:34:12,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-26 03:34:12,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-08-26 03:34:12,331 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 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) [2021-08-26 03:34:12,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 03:34:12,496 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2021-08-26 03:34:12,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-26 03:34:12,497 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 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 19 [2021-08-26 03:34:12,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 03:34:12,498 INFO L225 Difference]: With dead ends: 28 [2021-08-26 03:34:12,498 INFO L226 Difference]: Without dead ends: 0 [2021-08-26 03:34:12,498 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 71.0ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-08-26 03:34:12,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-26 03:34:12,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-26 03:34:12,498 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) [2021-08-26 03:34:12,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-26 03:34:12,499 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2021-08-26 03:34:12,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 03:34:12,499 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-26 03:34:12,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 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) [2021-08-26 03:34:12,499 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-26 03:34:12,499 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-26 03:34:12,501 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 03:34:12,501 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 03:34:12,501 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 03:34:12,502 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 03:34:12,527 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-08-26 03:34:12,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 03:34:12,719 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-26 03:34:12,722 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 03:34:12,724 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 03:34:12,739 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 03:34:12,741 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 03:34:12,741 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 03:34:12,743 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 03:34:12,751 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 03:34:12,757 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 03:34:12,763 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 03:34:16,515 INFO L857 garLoopResultBuilder]: For program point L60(lines 60 93) no Hoare annotation was computed. [2021-08-26 03:34:16,515 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 73) no Hoare annotation was computed. [2021-08-26 03:34:16,515 INFO L853 garLoopResultBuilder]: At program point L151(lines 29 152) the Hoare annotation is: false [2021-08-26 03:34:16,515 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-26 03:34:16,515 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-26 03:34:16,515 INFO L853 garLoopResultBuilder]: At program point L119(lines 98 128) the Hoare annotation is: (let ((.cse8 (div ULTIMATE.start_main_~main__index1~0 4294967296)) (.cse9 (div ULTIMATE.start_main_~main__index2~0 4294967296))) (let ((.cse0 (* 4294967296 .cse9)) (.cse1 (+ ULTIMATE.start_main_~main__index2~0 (* 4294967296 .cse8))) (.cse2 (= ULTIMATE.start_main_~__VERIFIER_assert__cond~0 1))) (or (and (<= (+ .cse0 ULTIMATE.start_main_~main__index1~0 1) .cse1) (<= ULTIMATE.start_main_~main__index2~0 (+ .cse0 99999)) (not (= ULTIMATE.start_main_~__VERIFIER_assert__cond~2 0)) .cse2) (and (<= ULTIMATE.start_main_~main__index1~0 (+ ULTIMATE.start_main_~main__index2~0 (* 4294967296 (div (+ (* ULTIMATE.start_main_~main__index2~0 (- 1)) 99998 (* (div (+ (- 1) ULTIMATE.start_main_~main__index1~0) 4294967296) 4294967296)) 4294967296)) 1)) (or (let ((.cse7 (select |#memory_int| |ULTIMATE.start_main_~#main__array~0.base|))) (let ((.cse6 (select .cse7 (+ |ULTIMATE.start_main_~#main__array~0.offset| (* .cse9 (- 17179869184)) (* ULTIMATE.start_main_~main__index2~0 4)))) (.cse5 (select .cse7 (+ |ULTIMATE.start_main_~#main__array~0.offset| (* ULTIMATE.start_main_~main__index1~0 4) (* .cse8 (- 17179869184)))))) (let ((.cse4 (+ .cse6 (* 4294967296 (div .cse5 4294967296)))) (.cse3 (+ .cse5 (* 4294967296 (div .cse6 4294967296))))) (and (<= .cse3 .cse4) (<= .cse4 .cse3))))) (<= (+ .cse0 ULTIMATE.start_main_~main__index1~0) .cse1)) .cse2)))) [2021-08-26 03:34:16,515 INFO L860 garLoopResultBuilder]: At program point L194(lines 14 196) the Hoare annotation is: true [2021-08-26 03:34:16,515 INFO L857 garLoopResultBuilder]: For program point L62(lines 62 88) no Hoare annotation was computed. [2021-08-26 03:34:16,516 INFO L857 garLoopResultBuilder]: For program point L29(lines 29 152) no Hoare annotation was computed. [2021-08-26 03:34:16,516 INFO L853 garLoopResultBuilder]: At program point L87(lines 62 88) the Hoare annotation is: (and (<= ULTIMATE.start_main_~main__index1~0 (+ ULTIMATE.start_main_~main__index2~0 (* 4294967296 (div (+ (* ULTIMATE.start_main_~main__index2~0 (- 1)) 99998 (* (div (+ (- 1) ULTIMATE.start_main_~main__index1~0) 4294967296) 4294967296)) 4294967296)) 1)) (<= (+ (* 4294967296 (div ULTIMATE.start_main_~main__index2~0 4294967296)) ULTIMATE.start_main_~main__index1~0 1) (+ ULTIMATE.start_main_~main__index2~0 (* 4294967296 (div ULTIMATE.start_main_~main__index1~0 4294967296)))) (= ULTIMATE.start_main_~__VERIFIER_assert__cond~0 1) (not (= ULTIMATE.start_main_~main____CPAchecker_TMP_0~1 0))) [2021-08-26 03:34:16,516 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 167) no Hoare annotation was computed. [2021-08-26 03:34:16,516 INFO L857 garLoopResultBuilder]: For program point L21(lines 21 195) no Hoare annotation was computed. [2021-08-26 03:34:16,516 INFO L853 garLoopResultBuilder]: At program point L79(lines 46 139) the Hoare annotation is: (let ((.cse3 (* 4294967296 (div ULTIMATE.start_main_~main__index2~0 4294967296)))) (let ((.cse0 (<= (+ .cse3 ULTIMATE.start_main_~main__index1~0 1) (+ ULTIMATE.start_main_~main__index2~0 (* 4294967296 (div ULTIMATE.start_main_~main__index1~0 4294967296))))) (.cse1 (<= ULTIMATE.start_main_~main__index2~0 (+ .cse3 99999))) (.cse2 (= ULTIMATE.start_main_~__VERIFIER_assert__cond~0 1))) (or (and .cse0 .cse1 (= ULTIMATE.start_main_~main____CPAchecker_TMP_0~0 1) .cse2) (and .cse0 .cse1 (not (= ULTIMATE.start_main_~__VERIFIER_assert__cond~1 0)) .cse2 (not (= ULTIMATE.start_main_~main____CPAchecker_TMP_0~1 0)))))) [2021-08-26 03:34:16,516 INFO L857 garLoopResultBuilder]: For program point L71(lines 71 80) no Hoare annotation was computed. [2021-08-26 03:34:16,516 INFO L853 garLoopResultBuilder]: At program point L146(lines 31 147) the Hoare annotation is: (let ((.cse0 (* 4294967296 (div ULTIMATE.start_main_~main__index2~0 4294967296)))) (and (<= (+ .cse0 ULTIMATE.start_main_~main__index1~0 1) (+ ULTIMATE.start_main_~main__index2~0 (* 4294967296 (div ULTIMATE.start_main_~main__index1~0 4294967296)))) (= ULTIMATE.start_main_~main__loop_entered~0 0) (<= ULTIMATE.start_main_~main__index2~0 (+ .cse0 99999)) (= ULTIMATE.start_main_~main____CPAchecker_TMP_0~0 1))) [2021-08-26 03:34:16,516 INFO L857 garLoopResultBuilder]: For program point L97(lines 97 132) no Hoare annotation was computed. [2021-08-26 03:34:16,516 INFO L857 garLoopResultBuilder]: For program point L31(lines 31 147) no Hoare annotation was computed. [2021-08-26 03:34:16,516 INFO L853 garLoopResultBuilder]: At program point L172(lines 26 185) the Hoare annotation is: (and (<= ULTIMATE.start_main_~main__index1~0 (+ ULTIMATE.start_main_~main__index2~0 (* 4294967296 (div (+ (* ULTIMATE.start_main_~main__index2~0 (- 1)) 99998 (* (div (+ (- 1) ULTIMATE.start_main_~main__index1~0) 4294967296) 4294967296)) 4294967296)) 1)) (not (= ULTIMATE.start_main_~__VERIFIER_assert__cond~2 0)) (= ULTIMATE.start_main_~__VERIFIER_assert__cond~0 1)) [2021-08-26 03:34:16,516 INFO L857 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2021-08-26 03:34:16,516 INFO L857 garLoopResultBuilder]: For program point L40(lines 40 139) no Hoare annotation was computed. [2021-08-26 03:34:16,517 INFO L860 garLoopResultBuilder]: At program point L131(lines 97 132) the Hoare annotation is: true [2021-08-26 03:34:16,517 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-26 03:34:16,517 INFO L857 garLoopResultBuilder]: For program point L156(lines 156 184) no Hoare annotation was computed. [2021-08-26 03:34:16,517 INFO L857 garLoopResultBuilder]: For program point L57(lines 57 133) no Hoare annotation was computed. [2021-08-26 03:34:16,517 INFO L857 garLoopResultBuilder]: For program point L24(lines 24 190) no Hoare annotation was computed. [2021-08-26 03:34:16,517 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 42) no Hoare annotation was computed. [2021-08-26 03:34:16,517 INFO L857 garLoopResultBuilder]: For program point L107(lines 107 120) no Hoare annotation was computed. [2021-08-26 03:34:16,517 INFO L857 garLoopResultBuilder]: For program point L165(lines 165 173) no Hoare annotation was computed. [2021-08-26 03:34:16,517 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-26 03:34:16,517 INFO L857 garLoopResultBuilder]: For program point L50(lines 50 138) no Hoare annotation was computed. [2021-08-26 03:34:16,517 INFO L857 garLoopResultBuilder]: For program point L42(line 42) no Hoare annotation was computed. [2021-08-26 03:34:16,517 INFO L857 garLoopResultBuilder]: For program point L158(lines 158 179) no Hoare annotation was computed. [2021-08-26 03:34:16,517 INFO L853 garLoopResultBuilder]: At program point L92(lines 60 93) the Hoare annotation is: false [2021-08-26 03:34:16,517 INFO L857 garLoopResultBuilder]: For program point L26(lines 26 185) no Hoare annotation was computed. [2021-08-26 03:34:16,518 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 109) no Hoare annotation was computed. [2021-08-26 03:34:16,518 INFO L857 garLoopResultBuilder]: For program point L109(line 109) no Hoare annotation was computed. [2021-08-26 03:34:16,518 INFO L857 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2021-08-26 03:34:16,521 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-26 03:34:16,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 03:34:16 BoogieIcfgContainer [2021-08-26 03:34:16,559 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-26 03:34:16,559 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-26 03:34:16,560 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-26 03:34:16,561 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-26 03:34:16,562 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 03:34:09" (3/4) ... [2021-08-26 03:34:16,564 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-26 03:34:16,574 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2021-08-26 03:34:16,574 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-08-26 03:34:16,575 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-26 03:34:16,575 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-26 03:34:16,615 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-26 03:34:16,615 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-26 03:34:16,616 INFO L168 Benchmark]: Toolchain (without parser) took 7796.70 ms. Allocated memory was 67.1 MB in the beginning and 98.6 MB in the end (delta: 31.5 MB). Free memory was 46.8 MB in the beginning and 40.6 MB in the end (delta: 6.2 MB). Peak memory consumption was 37.6 MB. Max. memory is 16.1 GB. [2021-08-26 03:34:16,617 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 67.1 MB. Free memory is still 48.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 03:34:16,617 INFO L168 Benchmark]: CACSL2BoogieTranslator took 255.96 ms. Allocated memory is still 67.1 MB. Free memory was 46.7 MB in the beginning and 48.6 MB in the end (delta: -1.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-08-26 03:34:16,617 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.47 ms. Allocated memory is still 67.1 MB. Free memory was 48.6 MB in the beginning and 46.8 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 03:34:16,617 INFO L168 Benchmark]: Boogie Preprocessor took 44.73 ms. Allocated memory is still 67.1 MB. Free memory was 46.7 MB in the beginning and 45.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-26 03:34:16,618 INFO L168 Benchmark]: RCFGBuilder took 321.00 ms. Allocated memory is still 67.1 MB. Free memory was 45.5 MB in the beginning and 44.9 MB in the end (delta: 564.9 kB). Peak memory consumption was 20.3 MB. Max. memory is 16.1 GB. [2021-08-26 03:34:16,618 INFO L168 Benchmark]: TraceAbstraction took 7084.41 ms. Allocated memory was 67.1 MB in the beginning and 98.6 MB in the end (delta: 31.5 MB). Free memory was 44.6 MB in the beginning and 44.8 MB in the end (delta: -168.4 kB). Peak memory consumption was 31.0 MB. Max. memory is 16.1 GB. [2021-08-26 03:34:16,618 INFO L168 Benchmark]: Witness Printer took 55.88 ms. Allocated memory is still 98.6 MB. Free memory was 44.8 MB in the beginning and 40.6 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-26 03:34:16,620 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 67.1 MB. Free memory is still 48.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 255.96 ms. Allocated memory is still 67.1 MB. Free memory was 46.7 MB in the beginning and 48.6 MB in the end (delta: -1.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 29.47 ms. Allocated memory is still 67.1 MB. Free memory was 48.6 MB in the beginning and 46.8 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 44.73 ms. Allocated memory is still 67.1 MB. Free memory was 46.7 MB in the beginning and 45.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 321.00 ms. Allocated memory is still 67.1 MB. Free memory was 45.5 MB in the beginning and 44.9 MB in the end (delta: 564.9 kB). Peak memory consumption was 20.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 7084.41 ms. Allocated memory was 67.1 MB in the beginning and 98.6 MB in the end (delta: 31.5 MB). Free memory was 44.6 MB in the beginning and 44.8 MB in the end (delta: -168.4 kB). Peak memory consumption was 31.0 MB. Max. memory is 16.1 GB. * Witness Printer took 55.88 ms. Allocated memory is still 98.6 MB. Free memory was 44.8 MB in the beginning and 40.6 MB in the end (delta: 4.2 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 - 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: 109]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 167]: 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 CFG has 1 procedures, 37 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 6993.6ms, OverallIterations: 7, TraceHistogramMax: 2, EmptinessCheckTime: 26.0ms, AutomataDifference: 804.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 3797.1ms, InitialAbstractionConstructionTime: 8.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 180 SDtfs, 165 SDslu, 204 SDs, 0 SdLazy, 147 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 399.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 458.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, InterpolantAutomatonStates: 37, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 45.8ms AutomataMinimizationTime, 7 MinimizatonAttempts, 47 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 19 NumberOfFragments, 390 HoareAnnotationTreeSize, 9 FomulaSimplifications, 667 FormulaSimplificationTreeSizeReduction, 43.8ms HoareSimplificationTime, 9 FomulaSimplificationsInter, 128 FormulaSimplificationTreeSizeReductionInter, 3746.3ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 31.0ms SsaConstructionTime, 221.4ms SatisfiabilityAnalysisTime, 1604.4ms InterpolantComputationTime, 111 NumberOfCodeBlocks, 111 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 103 ConstructedInterpolants, 0 QuantifiedInterpolants, 2969 SizeOfPredicates, 2 NumberOfNonLiveVariables, 107 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 8 InterpolantComputations, 6 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 4 specifications checked. All of them hold - InvariantResult [Line: 98]: Loop Invariant Derived loop invariant: (((4294967296 * (main__index2 / 4294967296) + main__index1 + 1 <= main__index2 + 4294967296 * (main__index1 / 4294967296) && main__index2 <= 4294967296 * (main__index2 / 4294967296) + 99999) && !(__VERIFIER_assert__cond == 0)) && __VERIFIER_assert__cond == 1) || ((main__index1 <= main__index2 + 4294967296 * ((main__index2 * -1 + 99998 + (-1 + main__index1) / 4294967296 * 4294967296) / 4294967296) + 1 && ((unknown-#memory_int-unknown[main__array][main__array + main__index1 * 4 + main__index1 / 4294967296 * -17179869184] + 4294967296 * (unknown-#memory_int-unknown[main__array][main__array + main__index2 / 4294967296 * -17179869184 + main__index2 * 4] / 4294967296) <= unknown-#memory_int-unknown[main__array][main__array + main__index2 / 4294967296 * -17179869184 + main__index2 * 4] + 4294967296 * (unknown-#memory_int-unknown[main__array][main__array + main__index1 * 4 + main__index1 / 4294967296 * -17179869184] / 4294967296) && unknown-#memory_int-unknown[main__array][main__array + main__index2 / 4294967296 * -17179869184 + main__index2 * 4] + 4294967296 * (unknown-#memory_int-unknown[main__array][main__array + main__index1 * 4 + main__index1 / 4294967296 * -17179869184] / 4294967296) <= unknown-#memory_int-unknown[main__array][main__array + main__index1 * 4 + main__index1 / 4294967296 * -17179869184] + 4294967296 * (unknown-#memory_int-unknown[main__array][main__array + main__index2 / 4294967296 * -17179869184 + main__index2 * 4] / 4294967296)) || 4294967296 * (main__index2 / 4294967296) + main__index1 <= main__index2 + 4294967296 * (main__index1 / 4294967296))) && __VERIFIER_assert__cond == 1) - InvariantResult [Line: 97]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 60]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: ((4294967296 * (main__index2 / 4294967296) + main__index1 + 1 <= main__index2 + 4294967296 * (main__index1 / 4294967296) && main__loop_entered == 0) && main__index2 <= 4294967296 * (main__index2 / 4294967296) + 99999) && main____CPAchecker_TMP_0 == 1 - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: (((4294967296 * (main__index2 / 4294967296) + main__index1 + 1 <= main__index2 + 4294967296 * (main__index1 / 4294967296) && main__index2 <= 4294967296 * (main__index2 / 4294967296) + 99999) && main____CPAchecker_TMP_0 == 1) && __VERIFIER_assert__cond == 1) || ((((4294967296 * (main__index2 / 4294967296) + main__index1 + 1 <= main__index2 + 4294967296 * (main__index1 / 4294967296) && main__index2 <= 4294967296 * (main__index2 / 4294967296) + 99999) && !(__VERIFIER_assert__cond == 0)) && __VERIFIER_assert__cond == 1) && !(main____CPAchecker_TMP_0 == 0)) - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: ((main__index1 <= main__index2 + 4294967296 * ((main__index2 * -1 + 99998 + (-1 + main__index1) / 4294967296 * 4294967296) / 4294967296) + 1 && 4294967296 * (main__index2 / 4294967296) + main__index1 + 1 <= main__index2 + 4294967296 * (main__index1 / 4294967296)) && __VERIFIER_assert__cond == 1) && !(main____CPAchecker_TMP_0 == 0) - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: (main__index1 <= main__index2 + 4294967296 * ((main__index2 * -1 + 99998 + (-1 + main__index1) / 4294967296 * 4294967296) / 4294967296) + 1 && !(__VERIFIER_assert__cond == 0)) && __VERIFIER_assert__cond == 1 RESULT: Ultimate proved your program to be correct! [2021-08-26 03:34:16,645 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...