./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-industry-pattern/mod3.c.v+sep-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 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-industry-pattern/mod3.c.v+sep-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 50620a1836495369f8d4c9773bdf114a4f3cd20fd05738366af3ab647304c819 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 00:06:47,799 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 00:06:47,800 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 00:06:47,837 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 00:06:47,837 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 00:06:47,840 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 00:06:47,842 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 00:06:47,848 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 00:06:47,850 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 00:06:47,855 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 00:06:47,856 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 00:06:47,857 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 00:06:47,857 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 00:06:47,859 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 00:06:47,861 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 00:06:47,862 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 00:06:47,866 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 00:06:47,868 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 00:06:47,869 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 00:06:47,872 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 00:06:47,875 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 00:06:47,876 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 00:06:47,877 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 00:06:47,878 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 00:06:47,881 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 00:06:47,883 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 00:06:47,883 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 00:06:47,884 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 00:06:47,885 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 00:06:47,886 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 00:06:47,886 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 00:06:47,887 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 00:06:47,889 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 00:06:47,889 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 00:06:47,891 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 00:06:47,891 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 00:06:47,891 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 00:06:47,892 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 00:06:47,892 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 00:06:47,893 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 00:06:47,893 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 00:06:47,894 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-16 00:06:47,930 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 00:06:47,931 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 00:06:47,932 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 00:06:47,932 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 00:06:47,933 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 00:06:47,933 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 00:06:47,934 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 00:06:47,934 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 00:06:47,934 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 00:06:47,934 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 00:06:47,935 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-16 00:06:47,935 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 00:06:47,936 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-16 00:06:47,936 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 00:06:47,936 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 00:06:47,936 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 00:06:47,936 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 00:06:47,936 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-16 00:06:47,937 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 00:06:47,937 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 00:06:47,937 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 00:06:47,937 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 00:06:47,938 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 00:06:47,938 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 00:06:47,938 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 00:06:47,938 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 00:06:47,938 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 00:06:47,939 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 00:06:47,939 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 00:06:47,939 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-16 00:06:47,939 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-16 00:06:47,939 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-16 00:06:47,940 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 00:06:47,940 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 00:06:47,940 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 50620a1836495369f8d4c9773bdf114a4f3cd20fd05738366af3ab647304c819 [2021-12-16 00:06:48,186 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 00:06:48,210 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 00:06:48,212 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 00:06:48,213 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 00:06:48,214 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 00:06:48,214 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-industry-pattern/mod3.c.v+sep-reducer.c [2021-12-16 00:06:48,262 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c9885ed0/ce8cd745d0a74ab5b5876f1d15d5b3e1/FLAG536f897f7 [2021-12-16 00:06:48,655 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 00:06:48,658 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-industry-pattern/mod3.c.v+sep-reducer.c [2021-12-16 00:06:48,665 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c9885ed0/ce8cd745d0a74ab5b5876f1d15d5b3e1/FLAG536f897f7 [2021-12-16 00:06:48,680 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c9885ed0/ce8cd745d0a74ab5b5876f1d15d5b3e1 [2021-12-16 00:06:48,683 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 00:06:48,684 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 00:06:48,687 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 00:06:48,687 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 00:06:48,689 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 00:06:48,690 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 12:06:48" (1/1) ... [2021-12-16 00:06:48,691 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69d1964a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:06:48, skipping insertion in model container [2021-12-16 00:06:48,691 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 12:06:48" (1/1) ... [2021-12-16 00:06:48,697 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 00:06:48,710 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 00:06:48,908 WARN L230 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-industry-pattern/mod3.c.v+sep-reducer.c[2057,2070] [2021-12-16 00:06:48,921 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 00:06:48,928 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 00:06:48,959 WARN L230 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-industry-pattern/mod3.c.v+sep-reducer.c[2057,2070] [2021-12-16 00:06:48,965 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 00:06:48,979 INFO L208 MainTranslator]: Completed translation [2021-12-16 00:06:48,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:06:48 WrapperNode [2021-12-16 00:06:48,981 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 00:06:48,982 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 00:06:48,982 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 00:06:48,982 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 00:06:48,989 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:06:48" (1/1) ... [2021-12-16 00:06:49,003 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:06:48" (1/1) ... [2021-12-16 00:06:49,027 INFO L137 Inliner]: procedures = 13, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 110 [2021-12-16 00:06:49,027 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 00:06:49,028 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 00:06:49,028 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 00:06:49,029 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 00:06:49,036 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:06:48" (1/1) ... [2021-12-16 00:06:49,036 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:06:48" (1/1) ... [2021-12-16 00:06:49,040 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:06:48" (1/1) ... [2021-12-16 00:06:49,040 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:06:48" (1/1) ... [2021-12-16 00:06:49,053 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:06:48" (1/1) ... [2021-12-16 00:06:49,057 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:06:48" (1/1) ... [2021-12-16 00:06:49,061 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:06:48" (1/1) ... [2021-12-16 00:06:49,063 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 00:06:49,066 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 00:06:49,066 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 00:06:49,066 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 00:06:49,067 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:06:48" (1/1) ... [2021-12-16 00:06:49,074 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 00:06:49,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 00:06:49,100 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) [2021-12-16 00:06:49,115 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 [2021-12-16 00:06:49,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 00:06:49,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 00:06:49,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 00:06:49,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 00:06:49,205 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 00:06:49,206 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 00:07:00,202 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 00:07:00,206 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 00:07:00,206 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-16 00:07:00,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 12:07:00 BoogieIcfgContainer [2021-12-16 00:07:00,208 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 00:07:00,209 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 00:07:00,209 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 00:07:00,212 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 00:07:00,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 12:06:48" (1/3) ... [2021-12-16 00:07:00,213 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@771db3a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 12:07:00, skipping insertion in model container [2021-12-16 00:07:00,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:06:48" (2/3) ... [2021-12-16 00:07:00,213 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@771db3a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 12:07:00, skipping insertion in model container [2021-12-16 00:07:00,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 12:07:00" (3/3) ... [2021-12-16 00:07:00,214 INFO L111 eAbstractionObserver]: Analyzing ICFG mod3.c.v+sep-reducer.c [2021-12-16 00:07:00,218 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 00:07:00,218 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-16 00:07:00,253 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 00:07:00,259 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, mAutomataTypeConcurrency=PETRI_NET, 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 [2021-12-16 00:07:00,259 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-16 00:07:00,288 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 22 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) [2021-12-16 00:07:00,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-16 00:07:00,292 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:07:00,293 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:07:00,293 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:07:00,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:07:00,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1060254097, now seen corresponding path program 1 times [2021-12-16 00:07:00,304 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:07:00,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347015676] [2021-12-16 00:07:00,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:07:00,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:07:00,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:07:00,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 00:07:00,693 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:07:00,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347015676] [2021-12-16 00:07:00,694 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347015676] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:07:00,695 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:07:00,695 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 00:07:00,697 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442139496] [2021-12-16 00:07:00,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:07:00,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 00:07:00,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:07:00,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 00:07:00,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-16 00:07:00,731 INFO L87 Difference]: Start difference. First operand has 23 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 22 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) Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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) [2021-12-16 00:07:02,759 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-16 00:07:04,929 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-16 00:07:07,109 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-16 00:07:09,287 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-16 00:07:11,451 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-16 00:07:13,636 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-16 00:07:15,811 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-16 00:07:15,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:07:15,975 INFO L93 Difference]: Finished difference Result 61 states and 82 transitions. [2021-12-16 00:07:15,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 00:07:15,977 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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 [2021-12-16 00:07:15,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:07:15,982 INFO L225 Difference]: With dead ends: 61 [2021-12-16 00:07:15,982 INFO L226 Difference]: Without dead ends: 26 [2021-12-16 00:07:15,984 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-16 00:07:15,990 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 13 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.2s IncrementalHoareTripleChecker+Time [2021-12-16 00:07:15,994 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 73 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 7 Unknown, 0 Unchecked, 15.2s Time] [2021-12-16 00:07:16,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-12-16 00:07:16,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2021-12-16 00:07:16,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 24 states have internal predecessors, (31), 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) [2021-12-16 00:07:16,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 31 transitions. [2021-12-16 00:07:16,022 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 31 transitions. Word has length 11 [2021-12-16 00:07:16,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:07:16,022 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 31 transitions. [2021-12-16 00:07:16,022 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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) [2021-12-16 00:07:16,022 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 31 transitions. [2021-12-16 00:07:16,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-12-16 00:07:16,023 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:07:16,023 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:07:16,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-16 00:07:16,025 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:07:16,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:07:16,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1251142831, now seen corresponding path program 1 times [2021-12-16 00:07:16,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:07:16,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356881498] [2021-12-16 00:07:16,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:07:16,029 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:07:16,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:07:16,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 00:07:16,494 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:07:16,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356881498] [2021-12-16 00:07:16,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356881498] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:07:16,494 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:07:16,494 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 00:07:16,494 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740166488] [2021-12-16 00:07:16,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:07:16,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 00:07:16,495 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:07:16,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 00:07:16,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 00:07:16,496 INFO L87 Difference]: Start difference. First operand 25 states and 31 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 00:07:18,515 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-16 00:07:20,618 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-16 00:07:22,747 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-16 00:07:24,968 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-16 00:07:27,129 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-16 00:07:29,360 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-16 00:07:31,561 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-16 00:07:33,737 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-16 00:07:35,888 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-16 00:07:38,057 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-16 00:07:40,226 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-16 00:07:43,129 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.90s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-16 00:07:43,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:07:43,285 INFO L93 Difference]: Finished difference Result 61 states and 80 transitions. [2021-12-16 00:07:43,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 00:07:43,286 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-12-16 00:07:43,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:07:43,287 INFO L225 Difference]: With dead ends: 61 [2021-12-16 00:07:43,288 INFO L226 Difference]: Without dead ends: 36 [2021-12-16 00:07:43,288 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-16 00:07:43,289 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 5 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 2 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.7s IncrementalHoareTripleChecker+Time [2021-12-16 00:07:43,289 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 67 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 43 Invalid, 12 Unknown, 0 Unchecked, 26.7s Time] [2021-12-16 00:07:43,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-12-16 00:07:43,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 30. [2021-12-16 00:07:43,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 29 states have internal predecessors, (38), 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) [2021-12-16 00:07:43,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 38 transitions. [2021-12-16 00:07:43,295 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 38 transitions. Word has length 12 [2021-12-16 00:07:43,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:07:43,295 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 38 transitions. [2021-12-16 00:07:43,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 00:07:43,298 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 38 transitions. [2021-12-16 00:07:43,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-12-16 00:07:43,298 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:07:43,298 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:07:43,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-16 00:07:43,298 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:07:43,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:07:43,300 INFO L85 PathProgramCache]: Analyzing trace with hash -659765539, now seen corresponding path program 1 times [2021-12-16 00:07:43,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:07:43,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932851691] [2021-12-16 00:07:43,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:07:43,300 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:07:43,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:07:43,561 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-16 00:07:43,561 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:07:43,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932851691] [2021-12-16 00:07:43,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932851691] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:07:43,561 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:07:43,562 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 00:07:43,562 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461692580] [2021-12-16 00:07:43,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:07:43,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 00:07:43,562 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:07:43,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 00:07:43,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-16 00:07:43,563 INFO L87 Difference]: Start difference. First operand 30 states and 38 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2021-12-16 00:07:45,574 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-16 00:07:47,740 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-16 00:07:49,923 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-16 00:07:50,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:07:50,145 INFO L93 Difference]: Finished difference Result 55 states and 71 transitions. [2021-12-16 00:07:50,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-16 00:07:50,145 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-12-16 00:07:50,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:07:50,146 INFO L225 Difference]: With dead ends: 55 [2021-12-16 00:07:50,146 INFO L226 Difference]: Without dead ends: 0 [2021-12-16 00:07:50,146 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-16 00:07:50,147 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 4 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2021-12-16 00:07:50,147 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 53 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 3 Unknown, 0 Unchecked, 6.6s Time] [2021-12-16 00:07:50,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-16 00:07:50,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-16 00:07:50,148 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) [2021-12-16 00:07:50,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-16 00:07:50,148 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2021-12-16 00:07:50,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:07:50,149 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-16 00:07:50,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2021-12-16 00:07:50,149 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-16 00:07:50,149 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-16 00:07:50,151 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-16 00:07:50,152 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-16 00:07:50,153 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-16 00:07:50,171 INFO L858 garLoopResultBuilder]: For program point L97(line 97) no Hoare annotation was computed. [2021-12-16 00:07:50,171 INFO L858 garLoopResultBuilder]: For program point L56(lines 56 83) no Hoare annotation was computed. [2021-12-16 00:07:50,172 INFO L854 garLoopResultBuilder]: At program point L52(lines 24 141) the Hoare annotation is: (<= |ULTIMATE.start_main_~main__x~0#1| (let ((.cse2 (div |ULTIMATE.start_main_~main__x~0#1| 4294967296))) (let ((.cse1 (* .cse2 (- 4294967296)))) (let ((.cse0 (div (+ |ULTIMATE.start_main_~main__x~0#1| .cse1) 3))) (+ (* 4294967296 (div (+ |ULTIMATE.start_main_~main__x~0#1| (* .cse0 (- 3)) .cse1) 4294967296)) (* 3 .cse0) (* 4294967296 .cse2)))))) [2021-12-16 00:07:50,172 INFO L861 garLoopResultBuilder]: At program point L135(lines 35 140) the Hoare annotation is: true [2021-12-16 00:07:50,172 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-16 00:07:50,172 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-16 00:07:50,172 INFO L854 garLoopResultBuilder]: At program point L61(lines 36 112) the Hoare annotation is: (<= |ULTIMATE.start_main_~main__x~0#1| (let ((.cse2 (div |ULTIMATE.start_main_~main__x~0#1| 4294967296))) (let ((.cse1 (* .cse2 (- 4294967296)))) (let ((.cse0 (div (+ |ULTIMATE.start_main_~main__x~0#1| .cse1) 3))) (+ (* 4294967296 (div (+ |ULTIMATE.start_main_~main__x~0#1| (* .cse0 (- 3)) .cse1) 4294967296)) (* 3 .cse0) (* 4294967296 .cse2)))))) [2021-12-16 00:07:50,173 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-16 00:07:50,173 INFO L861 garLoopResultBuilder]: At program point L123(lines 35 140) the Hoare annotation is: true [2021-12-16 00:07:50,173 INFO L858 garLoopResultBuilder]: For program point L24(lines 24 141) no Hoare annotation was computed. [2021-12-16 00:07:50,173 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 97) no Hoare annotation was computed. [2021-12-16 00:07:50,173 INFO L858 garLoopResultBuilder]: For program point L45(lines 45 111) no Hoare annotation was computed. [2021-12-16 00:07:50,173 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-16 00:07:50,174 INFO L858 garLoopResultBuilder]: For program point L95(lines 95 104) no Hoare annotation was computed. [2021-12-16 00:07:50,174 INFO L861 garLoopResultBuilder]: At program point L145(lines 15 147) the Hoare annotation is: true [2021-12-16 00:07:50,174 INFO L854 garLoopResultBuilder]: At program point L42(lines 24 141) the Hoare annotation is: (<= |ULTIMATE.start_main_~main__x~0#1| (let ((.cse2 (div |ULTIMATE.start_main_~main__x~0#1| 4294967296))) (let ((.cse1 (* .cse2 (- 4294967296)))) (let ((.cse0 (div (+ |ULTIMATE.start_main_~main__x~0#1| .cse1) 3))) (+ (* 4294967296 (div (+ |ULTIMATE.start_main_~main__x~0#1| (* .cse0 (- 3)) .cse1) 4294967296)) (* 3 .cse0) (* 4294967296 .cse2)))))) [2021-12-16 00:07:50,174 INFO L858 garLoopResultBuilder]: For program point L67(lines 67 82) no Hoare annotation was computed. [2021-12-16 00:07:50,174 INFO L858 garLoopResultBuilder]: For program point L88(lines 88 110) no Hoare annotation was computed. [2021-12-16 00:07:50,175 INFO L858 garLoopResultBuilder]: For program point L22(lines 22 146) no Hoare annotation was computed. [2021-12-16 00:07:50,175 INFO L858 garLoopResultBuilder]: For program point L117(lines 117 139) no Hoare annotation was computed. [2021-12-16 00:07:50,175 INFO L858 garLoopResultBuilder]: For program point L47(lines 47 84) no Hoare annotation was computed. [2021-12-16 00:07:50,175 INFO L861 garLoopResultBuilder]: At program point L138(lines 16 147) the Hoare annotation is: true [2021-12-16 00:07:50,175 INFO L858 garLoopResultBuilder]: For program point L35(lines 35 140) no Hoare annotation was computed. [2021-12-16 00:07:50,178 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-12-16 00:07:50,179 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-16 00:07:50,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 12:07:50 BoogieIcfgContainer [2021-12-16 00:07:50,192 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-16 00:07:50,192 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-16 00:07:50,193 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-16 00:07:50,193 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-16 00:07:50,193 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 12:07:00" (3/4) ... [2021-12-16 00:07:50,196 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-16 00:07:50,204 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-12-16 00:07:50,204 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-16 00:07:50,204 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-16 00:07:50,205 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-16 00:07:50,233 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-16 00:07:50,234 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-16 00:07:50,234 INFO L158 Benchmark]: Toolchain (without parser) took 61549.82ms. Allocated memory was 79.7MB in the beginning and 100.7MB in the end (delta: 21.0MB). Free memory was 43.4MB in the beginning and 44.4MB in the end (delta: -1.0MB). Peak memory consumption was 19.9MB. Max. memory is 16.1GB. [2021-12-16 00:07:50,235 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 79.7MB. Free memory is still 60.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-16 00:07:50,235 INFO L158 Benchmark]: CACSL2BoogieTranslator took 294.52ms. Allocated memory was 79.7MB in the beginning and 100.7MB in the end (delta: 21.0MB). Free memory was 43.2MB in the beginning and 73.7MB in the end (delta: -30.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-16 00:07:50,235 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.46ms. Allocated memory is still 100.7MB. Free memory was 73.5MB in the beginning and 71.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-16 00:07:50,236 INFO L158 Benchmark]: Boogie Preprocessor took 36.80ms. Allocated memory is still 100.7MB. Free memory was 71.9MB in the beginning and 70.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-16 00:07:50,236 INFO L158 Benchmark]: RCFGBuilder took 11142.23ms. Allocated memory is still 100.7MB. Free memory was 70.7MB in the beginning and 59.8MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-16 00:07:50,236 INFO L158 Benchmark]: TraceAbstraction took 49982.57ms. Allocated memory is still 100.7MB. Free memory was 59.4MB in the beginning and 47.9MB in the end (delta: 11.5MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2021-12-16 00:07:50,237 INFO L158 Benchmark]: Witness Printer took 41.66ms. Allocated memory is still 100.7MB. Free memory was 47.9MB in the beginning and 44.4MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-16 00:07:50,238 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 79.7MB. Free memory is still 60.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 294.52ms. Allocated memory was 79.7MB in the beginning and 100.7MB in the end (delta: 21.0MB). Free memory was 43.2MB in the beginning and 73.7MB in the end (delta: -30.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.46ms. Allocated memory is still 100.7MB. Free memory was 73.5MB in the beginning and 71.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.80ms. Allocated memory is still 100.7MB. Free memory was 71.9MB in the beginning and 70.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 11142.23ms. Allocated memory is still 100.7MB. Free memory was 70.7MB in the beginning and 59.8MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 49982.57ms. Allocated memory is still 100.7MB. Free memory was 59.4MB in the beginning and 47.9MB in the end (delta: 11.5MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. * Witness Printer took 41.66ms. Allocated memory is still 100.7MB. Free memory was 47.9MB in the beginning and 44.4MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 97]: 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, 23 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 49.9s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 48.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 22 mSolverCounterUnknown, 22 SdHoareTripleChecker+Valid, 48.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22 mSDsluCounter, 193 SdHoareTripleChecker+Invalid, 45.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 120 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 81 IncrementalHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 73 mSDtfsCounter, 81 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=2, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 7 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 18 NumberOfFragments, 127 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 719 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 4/4 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 1 specifications checked. All of them hold - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: main__x <= 4294967296 * ((main__x + (main__x + main__x / 4294967296 * -4294967296) / 3 * -3 + main__x / 4294967296 * -4294967296) / 4294967296) + 3 * ((main__x + main__x / 4294967296 * -4294967296) / 3) + 4294967296 * (main__x / 4294967296) - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: main__x <= 4294967296 * ((main__x + (main__x + main__x / 4294967296 * -4294967296) / 3 * -3 + main__x / 4294967296 * -4294967296) / 4294967296) + 3 * ((main__x + main__x / 4294967296 * -4294967296) / 3) + 4294967296 * (main__x / 4294967296) - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: main__x <= 4294967296 * ((main__x + (main__x + main__x / 4294967296 * -4294967296) / 3 * -3 + main__x / 4294967296 * -4294967296) / 4294967296) + 3 * ((main__x + main__x / 4294967296 * -4294967296) / 3) + 4294967296 * (main__x / 4294967296) - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-12-16 00:07:50,268 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE