./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+lh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5fbdf5bf 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/aiob_4.c.v+lh-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 289dd888f37cc0d6d55c6d2fce6d1543cb91b245 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-29 11:06:55,154 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-29 11:06:55,157 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-29 11:06:55,195 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-29 11:06:55,195 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-29 11:06:55,199 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-29 11:06:55,200 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-29 11:06:55,205 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-29 11:06:55,207 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-29 11:06:55,210 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-29 11:06:55,211 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-29 11:06:55,215 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-29 11:06:55,215 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-29 11:06:55,217 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-29 11:06:55,219 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-29 11:06:55,222 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-29 11:06:55,222 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-29 11:06:55,223 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-29 11:06:55,225 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-29 11:06:55,231 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-29 11:06:55,232 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-29 11:06:55,233 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-29 11:06:55,234 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-29 11:06:55,236 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-29 11:06:55,241 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-29 11:06:55,242 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-29 11:06:55,242 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-29 11:06:55,243 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-29 11:06:55,244 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-29 11:06:55,244 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-29 11:06:55,244 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 11:06:55,245 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 11:06:55,246 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 11:06:55,247 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 11:06:55,248 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 11:06:55,248 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 11:06:55,249 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 11:06:55,249 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 11:06:55,249 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 11:06:55,250 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 11:06:55,251 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 11:06:55,255 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-29 11:06:55,289 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 11:06:55,289 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 11:06:55,290 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 11:06:55,290 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 11:06:55,292 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 11:06:55,292 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 11:06:55,292 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 11:06:55,293 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 11:06:55,293 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 11:06:55,293 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-29 11:06:55,294 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 11:06:55,294 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 11:06:55,294 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 11:06:55,294 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 11:06:55,295 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 11:06:55,295 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 11:06:55,295 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 11:06:55,295 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 11:06:55,295 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 11:06:55,295 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 11:06:55,296 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 11:06:55,296 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 11:06:55,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 11:06:55,305 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 11:06:55,305 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 11:06:55,305 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 11:06:55,305 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-29 11:06:55,306 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-29 11:06:55,306 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 11:06:55,306 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 11:06:55,306 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 289dd888f37cc0d6d55c6d2fce6d1543cb91b245 [2021-08-29 11:06:55,598 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 11:06:55,621 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 11:06:55,624 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 11:06:55,625 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 11:06:55,626 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 11:06:55,627 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+lh-reducer.c [2021-08-29 11:06:55,697 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27952fdb7/69a3782b624c4704b2afa84dcc20d7ef/FLAG82852111c [2021-08-29 11:06:56,114 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 11:06:56,119 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+lh-reducer.c [2021-08-29 11:06:56,127 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27952fdb7/69a3782b624c4704b2afa84dcc20d7ef/FLAG82852111c [2021-08-29 11:06:56,484 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27952fdb7/69a3782b624c4704b2afa84dcc20d7ef [2021-08-29 11:06:56,486 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 11:06:56,487 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 11:06:56,489 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 11:06:56,490 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 11:06:56,493 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 11:06:56,493 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 11:06:56" (1/1) ... [2021-08-29 11:06:56,494 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@597f4518 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 11:06:56, skipping insertion in model container [2021-08-29 11:06:56,495 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 11:06:56" (1/1) ... [2021-08-29 11:06:56,501 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 11:06:56,534 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 11:06:56,711 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-industry-pattern/aiob_4.c.v+lh-reducer.c[8507,8520] [2021-08-29 11:06:56,719 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 11:06:56,731 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 11:06:56,814 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-industry-pattern/aiob_4.c.v+lh-reducer.c[8507,8520] [2021-08-29 11:06:56,816 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 11:06:56,826 INFO L208 MainTranslator]: Completed translation [2021-08-29 11:06:56,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 11:06:56 WrapperNode [2021-08-29 11:06:56,826 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 11:06:56,835 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 11:06:56,836 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 11:06:56,836 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 11:06:56,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 11:06:56" (1/1) ... [2021-08-29 11:06:56,869 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 11:06:56" (1/1) ... [2021-08-29 11:06:56,914 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 11:06:56,915 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 11:06:56,915 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 11:06:56,915 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 11:06:56,922 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 11:06:56" (1/1) ... [2021-08-29 11:06:56,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 11:06:56" (1/1) ... [2021-08-29 11:06:56,934 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 11:06:56" (1/1) ... [2021-08-29 11:06:56,934 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 11:06:56" (1/1) ... [2021-08-29 11:06:56,961 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 11:06:56" (1/1) ... [2021-08-29 11:06:56,969 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 11:06:56" (1/1) ... [2021-08-29 11:06:56,971 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 11:06:56" (1/1) ... [2021-08-29 11:06:56,975 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 11:06:56,977 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 11:06:56,982 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 11:06:56,982 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 11:06:56,983 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 11:06:56" (1/1) ... [2021-08-29 11:06:56,989 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 11:06:56,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 11:06:57,010 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) [2021-08-29 11:06:57,033 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 [2021-08-29 11:06:57,061 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-08-29 11:06:57,061 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2021-08-29 11:06:57,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-29 11:06:57,063 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 11:06:57,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 11:06:57,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 11:06:57,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-29 11:06:57,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-29 11:06:57,647 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 11:06:57,648 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-08-29 11:06:57,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 11:06:57 BoogieIcfgContainer [2021-08-29 11:06:57,650 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 11:06:57,651 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 11:06:57,652 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 11:06:57,655 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 11:06:57,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 11:06:56" (1/3) ... [2021-08-29 11:06:57,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26b5f84b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 11:06:57, skipping insertion in model container [2021-08-29 11:06:57,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 11:06:56" (2/3) ... [2021-08-29 11:06:57,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26b5f84b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 11:06:57, skipping insertion in model container [2021-08-29 11:06:57,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 11:06:57" (3/3) ... [2021-08-29 11:06:57,658 INFO L111 eAbstractionObserver]: Analyzing ICFG aiob_4.c.v+lh-reducer.c [2021-08-29 11:06:57,663 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 11:06:57,663 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-29 11:06:57,699 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 11:06:57,708 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 [2021-08-29 11:06:57,708 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-29 11:06:57,724 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 13 states have internal predecessors, (19), 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) [2021-08-29 11:06:57,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-08-29 11:06:57,728 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 11:06:57,729 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 11:06:57,729 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 11:06:57,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 11:06:57,733 INFO L82 PathProgramCache]: Analyzing trace with hash 176653045, now seen corresponding path program 1 times [2021-08-29 11:06:57,741 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 11:06:57,741 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014795355] [2021-08-29 11:06:57,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 11:06:57,742 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 11:06:57,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 11:06:58,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 11:06:58,026 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 11:06:58,026 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014795355] [2021-08-29 11:06:58,027 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014795355] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 11:06:58,027 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 11:06:58,027 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 11:06:58,028 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960992194] [2021-08-29 11:06:58,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 11:06:58,032 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 11:06:58,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 11:06:58,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 11:06:58,058 INFO L87 Difference]: Start difference. First operand has 14 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 13 states have internal predecessors, (19), 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 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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) [2021-08-29 11:06:58,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 11:06:58,163 INFO L93 Difference]: Finished difference Result 32 states and 39 transitions. [2021-08-29 11:06:58,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 11:06:58,166 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 8 [2021-08-29 11:06:58,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 11:06:58,173 INFO L225 Difference]: With dead ends: 32 [2021-08-29 11:06:58,173 INFO L226 Difference]: Without dead ends: 17 [2021-08-29 11:06:58,177 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.45ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 11:06:58,180 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 16 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 67.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.98ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 83.03ms IncrementalHoareTripleChecker+Time [2021-08-29 11:06:58,181 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 0 Invalid, 51 Unknown, 0 Unchecked, 0.98ms Time], IncrementalHoareTripleChecker [3 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 83.03ms Time] [2021-08-29 11:06:58,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-08-29 11:06:58,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 14. [2021-08-29 11:06:58,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 13 states have internal predecessors, (14), 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) [2021-08-29 11:06:58,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2021-08-29 11:06:58,208 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 8 [2021-08-29 11:06:58,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 11:06:58,209 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2021-08-29 11:06:58,209 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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) [2021-08-29 11:06:58,209 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2021-08-29 11:06:58,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-08-29 11:06:58,210 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 11:06:58,210 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 11:06:58,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-29 11:06:58,211 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 11:06:58,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 11:06:58,213 INFO L82 PathProgramCache]: Analyzing trace with hash -314667186, now seen corresponding path program 1 times [2021-08-29 11:06:58,213 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 11:06:58,214 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057482209] [2021-08-29 11:06:58,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 11:06:58,214 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 11:06:58,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 11:06:58,344 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 11:06:58,344 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 11:06:58,345 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057482209] [2021-08-29 11:06:58,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057482209] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-29 11:06:58,345 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [813821065] [2021-08-29 11:06:58,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 11:06:58,346 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 11:06:58,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 11:06:58,357 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) [2021-08-29 11:06:58,359 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-08-29 11:06:58,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 11:06:58,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-29 11:06:58,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 11:06:58,664 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 11:06:58,665 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 11:06:58,717 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 11:06:58,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [813821065] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-29 11:06:58,718 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-08-29 11:06:58,718 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2021-08-29 11:06:58,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432166781] [2021-08-29 11:06:58,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-29 11:06:58,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 11:06:58,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-29 11:06:58,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-08-29 11:06:58,721 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 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) [2021-08-29 11:06:58,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 11:06:58,933 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2021-08-29 11:06:58,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-29 11:06:58,934 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 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) Word has length 13 [2021-08-29 11:06:58,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 11:06:58,935 INFO L225 Difference]: With dead ends: 34 [2021-08-29 11:06:58,935 INFO L226 Difference]: Without dead ends: 31 [2021-08-29 11:06:58,936 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 110.82ms TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2021-08-29 11:06:58,937 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 31 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 111.53ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.49ms SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 133.57ms IncrementalHoareTripleChecker+Time [2021-08-29 11:06:58,937 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 0 Invalid, 90 Unknown, 0 Unchecked, 1.49ms Time], IncrementalHoareTripleChecker [17 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 133.57ms Time] [2021-08-29 11:06:58,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-08-29 11:06:58,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 29. [2021-08-29 11:06:58,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.0357142857142858) internal successors, (29), 28 states have internal predecessors, (29), 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) [2021-08-29 11:06:58,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 29 transitions. [2021-08-29 11:06:58,948 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 29 transitions. Word has length 13 [2021-08-29 11:06:58,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 11:06:58,950 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 29 transitions. [2021-08-29 11:06:58,950 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 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) [2021-08-29 11:06:58,950 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2021-08-29 11:06:58,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-08-29 11:06:58,952 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 11:06:58,953 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1] [2021-08-29 11:06:58,981 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-08-29 11:06:59,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 11:06:59,174 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 11:06:59,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 11:06:59,175 INFO L82 PathProgramCache]: Analyzing trace with hash -1756489163, now seen corresponding path program 2 times [2021-08-29 11:06:59,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 11:06:59,175 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95949873] [2021-08-29 11:06:59,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 11:06:59,175 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 11:06:59,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 11:06:59,330 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 11:06:59,331 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 11:06:59,331 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95949873] [2021-08-29 11:06:59,331 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95949873] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-29 11:06:59,331 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [186534483] [2021-08-29 11:06:59,332 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-29 11:06:59,332 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 11:06:59,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 11:06:59,333 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-29 11:06:59,358 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-08-29 11:06:59,504 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-29 11:06:59,504 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-29 11:06:59,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 13 conjunts are in the unsatisfiable core [2021-08-29 11:06:59,510 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 11:06:59,698 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 11:06:59,699 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 11:06:59,878 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 11:06:59,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [186534483] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-29 11:06:59,879 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-08-29 11:06:59,879 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2021-08-29 11:06:59,879 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308976553] [2021-08-29 11:06:59,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-08-29 11:06:59,880 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 11:06:59,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-08-29 11:06:59,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2021-08-29 11:06:59,881 INFO L87 Difference]: Start difference. First operand 29 states and 29 transitions. Second operand has 15 states, 15 states have (on average 3.6666666666666665) internal successors, (55), 15 states have internal predecessors, (55), 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) [2021-08-29 11:07:00,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 11:07:00,524 INFO L93 Difference]: Finished difference Result 64 states and 69 transitions. [2021-08-29 11:07:00,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-08-29 11:07:00,524 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.6666666666666665) internal successors, (55), 15 states have internal predecessors, (55), 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 28 [2021-08-29 11:07:00,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 11:07:00,525 INFO L225 Difference]: With dead ends: 64 [2021-08-29 11:07:00,526 INFO L226 Difference]: Without dead ends: 61 [2021-08-29 11:07:00,526 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 48 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 515.14ms TimeCoverageRelationStatistics Valid=203, Invalid=499, Unknown=0, NotChecked=0, Total=702 [2021-08-29 11:07:00,527 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 59 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 195.16ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.12ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 240.20ms IncrementalHoareTripleChecker+Time [2021-08-29 11:07:00,527 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 0 Invalid, 265 Unknown, 0 Unchecked, 3.12ms Time], IncrementalHoareTripleChecker [37 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 240.20ms Time] [2021-08-29 11:07:00,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2021-08-29 11:07:00,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 59. [2021-08-29 11:07:00,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 58 states have (on average 1.0172413793103448) internal successors, (59), 58 states have internal predecessors, (59), 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) [2021-08-29 11:07:00,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 59 transitions. [2021-08-29 11:07:00,535 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 59 transitions. Word has length 28 [2021-08-29 11:07:00,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 11:07:00,536 INFO L470 AbstractCegarLoop]: Abstraction has 59 states and 59 transitions. [2021-08-29 11:07:00,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.6666666666666665) internal successors, (55), 15 states have internal predecessors, (55), 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) [2021-08-29 11:07:00,536 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 59 transitions. [2021-08-29 11:07:00,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-08-29 11:07:00,538 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 11:07:00,538 INFO L513 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 1, 1, 1, 1, 1, 1] [2021-08-29 11:07:00,566 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-08-29 11:07:00,763 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-08-29 11:07:00,763 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 11:07:00,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 11:07:00,764 INFO L82 PathProgramCache]: Analyzing trace with hash 426197269, now seen corresponding path program 3 times [2021-08-29 11:07:00,764 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 11:07:00,764 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828248956] [2021-08-29 11:07:00,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 11:07:00,765 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 11:07:00,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 11:07:01,054 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 11:07:01,055 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 11:07:01,055 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828248956] [2021-08-29 11:07:01,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828248956] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-29 11:07:01,055 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1235796984] [2021-08-29 11:07:01,056 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-29 11:07:01,056 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 11:07:01,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 11:07:01,077 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-29 11:07:01,126 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-08-29 11:07:01,734 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-08-29 11:07:01,734 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-29 11:07:01,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 17 conjunts are in the unsatisfiable core [2021-08-29 11:07:01,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 11:07:02,001 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-29 11:07:02,002 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 23 [2021-08-29 11:07:02,213 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 27 proven. 39 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2021-08-29 11:07:02,213 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 11:07:04,035 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2021-08-29 11:07:04,036 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1235796984] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-29 11:07:04,036 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-08-29 11:07:04,036 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 8, 8] total 26 [2021-08-29 11:07:04,036 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057013] [2021-08-29 11:07:04,037 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-08-29 11:07:04,037 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 11:07:04,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-08-29 11:07:04,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=519, Unknown=0, NotChecked=0, Total=650 [2021-08-29 11:07:04,039 INFO L87 Difference]: Start difference. First operand 59 states and 59 transitions. Second operand has 26 states, 26 states have (on average 3.3076923076923075) internal successors, (86), 26 states have internal predecessors, (86), 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) [2021-08-29 11:07:05,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 11:07:05,530 INFO L93 Difference]: Finished difference Result 70 states and 72 transitions. [2021-08-29 11:07:05,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-08-29 11:07:05,532 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.3076923076923075) internal successors, (86), 26 states have internal predecessors, (86), 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 58 [2021-08-29 11:07:05,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 11:07:05,532 INFO L225 Difference]: With dead ends: 70 [2021-08-29 11:07:05,533 INFO L226 Difference]: Without dead ends: 0 [2021-08-29 11:07:05,534 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 386 ImplicationChecksByTransitivity, 1422.61ms TimeCoverageRelationStatistics Valid=576, Invalid=2076, Unknown=0, NotChecked=0, Total=2652 [2021-08-29 11:07:05,535 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 207 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 637 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 432.47ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.81ms SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2 IncrementalHoareTripleChecker+Unchecked, 496.07ms IncrementalHoareTripleChecker+Time [2021-08-29 11:07:05,535 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [207 Valid, 0 Invalid, 763 Unknown, 0 Unchecked, 4.81ms Time], IncrementalHoareTripleChecker [124 Valid, 637 Invalid, 0 Unknown, 2 Unchecked, 496.07ms Time] [2021-08-29 11:07:05,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-29 11:07:05,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-29 11:07:05,536 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) [2021-08-29 11:07:05,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-29 11:07:05,536 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 58 [2021-08-29 11:07:05,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 11:07:05,536 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-29 11:07:05,537 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.3076923076923075) internal successors, (86), 26 states have internal predecessors, (86), 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) [2021-08-29 11:07:05,537 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-29 11:07:05,537 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-29 11:07:05,539 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-08-29 11:07:05,567 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-08-29 11:07:05,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 11:07:05,742 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-29 11:07:05,745 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 11:07:05,771 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 11:07:05,907 INFO L858 garLoopResultBuilder]: For program point L161(lines 161 236) no Hoare annotation was computed. [2021-08-29 11:07:05,907 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-29 11:07:05,907 INFO L858 garLoopResultBuilder]: For program point L190(lines 190 208) no Hoare annotation was computed. [2021-08-29 11:07:05,907 INFO L858 garLoopResultBuilder]: For program point L221(line 221) no Hoare annotation was computed. [2021-08-29 11:07:05,908 INFO L858 garLoopResultBuilder]: For program point L219(lines 219 227) no Hoare annotation was computed. [2021-08-29 11:07:05,908 INFO L858 garLoopResultBuilder]: For program point L182(lines 182 229) no Hoare annotation was computed. [2021-08-29 11:07:05,908 INFO L858 garLoopResultBuilder]: For program point L180(lines 180 234) no Hoare annotation was computed. [2021-08-29 11:07:05,908 INFO L858 garLoopResultBuilder]: For program point L197(lines 197 207) no Hoare annotation was computed. [2021-08-29 11:07:05,908 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-29 11:07:05,908 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-29 11:07:05,908 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-29 11:07:05,909 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 221) no Hoare annotation was computed. [2021-08-29 11:07:05,909 INFO L854 garLoopResultBuilder]: At program point L202(lines 167 235) the Hoare annotation is: (let ((.cse0 (= (select (select |#memory_int| |ULTIMATE.start_main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |ULTIMATE.start_main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0))) (or (and .cse0 (= ~Id_MCDC_93~0 0) (= ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0 0)) (and (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (<= ~Id_MCDC_93~0 1) .cse0 (<= ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0 1) (<= 1 ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0)) (let ((.cse1 (mod (+ 4294967295 ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0) 4294967296))) (and (not (= (* 12 .cse1) 492)) (< .cse1 42) (< (mod (+ ~Id_MCDC_93~0 4294967295) 4294967296) 42) (< (mod ~Id_MCDC_93~0 4294967296) 42) .cse0)))) [2021-08-29 11:07:05,909 INFO L861 garLoopResultBuilder]: At program point L233(lines 133 237) the Hoare annotation is: true [2021-08-29 11:07:05,913 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 11:07:05,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 11:07:05 BoogieIcfgContainer [2021-08-29 11:07:05,925 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-29 11:07:05,926 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-29 11:07:05,926 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-29 11:07:05,928 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-29 11:07:05,929 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 11:06:57" (3/4) ... [2021-08-29 11:07:05,931 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-29 11:07:05,950 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2021-08-29 11:07:05,951 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-08-29 11:07:05,951 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-08-29 11:07:05,952 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-29 11:07:05,953 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-29 11:07:06,117 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-29 11:07:06,118 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-29 11:07:06,118 INFO L158 Benchmark]: Toolchain (without parser) took 9631.73ms. Allocated memory was 52.4MB in the beginning and 121.6MB in the end (delta: 69.2MB). Free memory was 29.3MB in the beginning and 38.3MB in the end (delta: -9.0MB). Peak memory consumption was 63.1MB. Max. memory is 16.1GB. [2021-08-29 11:07:06,119 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 52.4MB. Free memory was 34.7MB in the beginning and 34.6MB in the end (delta: 33.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 11:07:06,119 INFO L158 Benchmark]: CACSL2BoogieTranslator took 345.05ms. Allocated memory is still 52.4MB. Free memory was 29.1MB in the beginning and 26.9MB in the end (delta: 2.2MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. [2021-08-29 11:07:06,119 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.86ms. Allocated memory was 52.4MB in the beginning and 67.1MB in the end (delta: 14.7MB). Free memory was 26.8MB in the beginning and 49.4MB in the end (delta: -22.6MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. [2021-08-29 11:07:06,120 INFO L158 Benchmark]: Boogie Preprocessor took 61.63ms. Allocated memory is still 67.1MB. Free memory was 49.1MB in the beginning and 46.3MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 11:07:06,120 INFO L158 Benchmark]: RCFGBuilder took 672.60ms. Allocated memory is still 67.1MB. Free memory was 46.1MB in the beginning and 34.4MB in the end (delta: 11.6MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. [2021-08-29 11:07:06,120 INFO L158 Benchmark]: TraceAbstraction took 8274.05ms. Allocated memory was 67.1MB in the beginning and 121.6MB in the end (delta: 54.5MB). Free memory was 33.8MB in the beginning and 49.6MB in the end (delta: -15.8MB). Peak memory consumption was 38.6MB. Max. memory is 16.1GB. [2021-08-29 11:07:06,121 INFO L158 Benchmark]: Witness Printer took 192.04ms. Allocated memory is still 121.6MB. Free memory was 49.6MB in the beginning and 38.3MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-08-29 11:07:06,122 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 52.4MB. Free memory was 34.7MB in the beginning and 34.6MB in the end (delta: 33.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 345.05ms. Allocated memory is still 52.4MB. Free memory was 29.1MB in the beginning and 26.9MB in the end (delta: 2.2MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.86ms. Allocated memory was 52.4MB in the beginning and 67.1MB in the end (delta: 14.7MB). Free memory was 26.8MB in the beginning and 49.4MB in the end (delta: -22.6MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.63ms. Allocated memory is still 67.1MB. Free memory was 49.1MB in the beginning and 46.3MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 672.60ms. Allocated memory is still 67.1MB. Free memory was 46.1MB in the beginning and 34.4MB in the end (delta: 11.6MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. * TraceAbstraction took 8274.05ms. Allocated memory was 67.1MB in the beginning and 121.6MB in the end (delta: 54.5MB). Free memory was 33.8MB in the beginning and 49.6MB in the end (delta: -15.8MB). Peak memory consumption was 38.6MB. Max. memory is 16.1GB. * Witness Printer took 192.04ms. Allocated memory is still 121.6MB. Free memory was 49.6MB in the beginning and 38.3MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 221]: 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, 14 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8215.16ms, OverallIterations: 4, TraceHistogramMax: 11, EmptinessCheckTime: 14.12ms, AutomataDifference: 2514.60ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 166.42ms, InitialAbstractionConstructionTime: 10.89ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 313 SdHoareTripleChecker+Valid, 952.87ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 313 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 806.15ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 2 IncrementalHoareTripleChecker+Unchecked, 214 mSDsCounter, 181 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 986 IncrementalHoareTripleChecker+Invalid, 1169 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 181 mSolverCounterUnsat, 0 mSDtfsCounter, 986 mSolverCounterSat, 10.40ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 268 GetRequests, 175 SyntacticMatches, 2 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 497 ImplicationChecksByTransitivity, 2072.03ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=59occurred in iteration=3, InterpolantAutomatonStates: 59, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 32.29ms AutomataMinimizationTime, 4 MinimizatonAttempts, 7 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.00ms HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 17 NumberOfFragments, 83 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 28.47ms HoareSimplificationTime, 2 FomulaSimplificationsInter, 539 FormulaSimplificationTreeSizeReductionInter, 132.52ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 114.04ms SsaConstructionTime, 974.08ms SatisfiabilityAnalysisTime, 3403.19ms InterpolantComputationTime, 206 NumberOfCodeBlocks, 166 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 295 ConstructedInterpolants, 46 QuantifiedInterpolants, 3351 SizeOfPredicates, 14 NumberOfNonLiveVariables, 1261 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 10 InterpolantComputations, 1 PerfectInterpolantSequences, 405/900 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: 167]: Loop Invariant Derived loop invariant: (((unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0 && Id_MCDC_93 == 0) && Id_MCDC_89__Id_MCDC_96 == 0) || ((((0 < Id_MCDC_93 / 4294967296 + 1 && Id_MCDC_93 <= 1) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) && Id_MCDC_89__Id_MCDC_96 <= 1) && 1 <= Id_MCDC_89__Id_MCDC_96)) || ((((!(12 * ((4294967295 + Id_MCDC_89__Id_MCDC_96) % 4294967296) == 492) && (4294967295 + Id_MCDC_89__Id_MCDC_96) % 4294967296 < 42) && (Id_MCDC_93 + 4294967295) % 4294967296 < 42) && Id_MCDC_93 % 4294967296 < 42) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) - InvariantResult [Line: 133]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-08-29 11:07:06,137 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...