./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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+cfa-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(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a9d9fdb967c829f2f7ee82db31bc122f536bc655 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 17:07:28,905 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 17:07:28,907 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 17:07:28,925 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 17:07:28,926 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 17:07:28,928 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 17:07:28,930 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 17:07:28,940 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 17:07:28,945 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 17:07:28,949 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 17:07:28,950 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 17:07:28,952 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 17:07:28,953 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 17:07:28,956 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 17:07:28,957 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 17:07:28,959 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 17:07:28,961 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 17:07:28,962 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 17:07:28,965 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 17:07:28,969 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 17:07:28,973 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 17:07:28,978 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 17:07:28,979 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 17:07:28,980 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 17:07:28,986 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 17:07:28,987 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 17:07:28,987 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 17:07:28,989 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 17:07:28,989 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 17:07:28,990 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 17:07:28,991 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 17:07:28,991 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 17:07:28,992 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 17:07:28,993 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 17:07:28,995 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 17:07:28,995 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 17:07:28,996 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 17:07:28,996 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 17:07:28,997 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 17:07:28,998 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 17:07:28,999 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 17:07:29,000 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 17:07:29,014 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 17:07:29,015 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 17:07:29,016 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 17:07:29,016 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 17:07:29,017 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 17:07:29,017 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 17:07:29,017 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 17:07:29,018 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 17:07:29,018 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 17:07:29,018 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 17:07:29,018 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 17:07:29,019 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 17:07:29,019 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 17:07:29,019 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 17:07:29,020 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 17:07:29,020 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 17:07:29,020 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 17:07:29,021 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 17:07:29,021 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 17:07:29,021 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 17:07:29,021 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 17:07:29,022 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 17:07:29,022 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 17:07:29,022 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 17:07:29,023 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 17:07:29,023 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 17:07:29,023 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 17:07:29,024 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 17:07:29,024 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 17:07:29,024 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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(__VERIFIER_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 -> a9d9fdb967c829f2f7ee82db31bc122f536bc655 [2019-11-28 17:07:29,379 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 17:07:29,397 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 17:07:29,401 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 17:07:29,403 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 17:07:29,404 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 17:07:29,405 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+cfa-reducer.c [2019-11-28 17:07:29,476 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce6b35e08/0123944e803b4f82af0d4dd34ea95a15/FLAG5c332b9f1 [2019-11-28 17:07:29,971 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 17:07:29,972 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+cfa-reducer.c [2019-11-28 17:07:29,981 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce6b35e08/0123944e803b4f82af0d4dd34ea95a15/FLAG5c332b9f1 [2019-11-28 17:07:30,301 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce6b35e08/0123944e803b4f82af0d4dd34ea95a15 [2019-11-28 17:07:30,305 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 17:07:30,307 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 17:07:30,308 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 17:07:30,309 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 17:07:30,312 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 17:07:30,313 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:07:30" (1/1) ... [2019-11-28 17:07:30,316 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6377d725 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:07:30, skipping insertion in model container [2019-11-28 17:07:30,317 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:07:30" (1/1) ... [2019-11-28 17:07:30,324 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 17:07:30,364 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 17:07:30,658 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 17:07:30,728 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 17:07:30,819 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 17:07:30,833 INFO L208 MainTranslator]: Completed translation [2019-11-28 17:07:30,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:07:30 WrapperNode [2019-11-28 17:07:30,834 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 17:07:30,835 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 17:07:30,835 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 17:07:30,835 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 17:07:30,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:07:30" (1/1) ... [2019-11-28 17:07:30,857 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:07:30" (1/1) ... [2019-11-28 17:07:30,898 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 17:07:30,899 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 17:07:30,899 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 17:07:30,899 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 17:07:30,911 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:07:30" (1/1) ... [2019-11-28 17:07:30,911 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:07:30" (1/1) ... [2019-11-28 17:07:30,919 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:07:30" (1/1) ... [2019-11-28 17:07:30,919 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:07:30" (1/1) ... [2019-11-28 17:07:30,945 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:07:30" (1/1) ... [2019-11-28 17:07:30,949 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:07:30" (1/1) ... [2019-11-28 17:07:30,953 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:07:30" (1/1) ... [2019-11-28 17:07:30,958 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 17:07:30,958 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 17:07:30,958 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 17:07:30,959 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 17:07:30,960 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:07:30" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 17:07:31,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-28 17:07:31,024 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2019-11-28 17:07:31,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 17:07:31,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 17:07:31,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 17:07:31,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 17:07:31,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 17:07:31,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 17:07:31,726 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 17:07:31,726 INFO L287 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-28 17:07:31,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:07:31 BoogieIcfgContainer [2019-11-28 17:07:31,728 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 17:07:31,729 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 17:07:31,729 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 17:07:31,732 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 17:07:31,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:07:30" (1/3) ... [2019-11-28 17:07:31,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3562a323 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:07:31, skipping insertion in model container [2019-11-28 17:07:31,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:07:30" (2/3) ... [2019-11-28 17:07:31,735 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3562a323 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:07:31, skipping insertion in model container [2019-11-28 17:07:31,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:07:31" (3/3) ... [2019-11-28 17:07:31,737 INFO L109 eAbstractionObserver]: Analyzing ICFG aiob_4.c.v+cfa-reducer.c [2019-11-28 17:07:31,748 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 17:07:31,756 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-28 17:07:31,768 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-28 17:07:31,791 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 17:07:31,791 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 17:07:31,792 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 17:07:31,792 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 17:07:31,792 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 17:07:31,792 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 17:07:31,792 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 17:07:31,793 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 17:07:31,809 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2019-11-28 17:07:31,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-28 17:07:31,814 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:07:31,815 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 17:07:31,815 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:07:31,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:07:31,821 INFO L82 PathProgramCache]: Analyzing trace with hash 1180906794, now seen corresponding path program 1 times [2019-11-28 17:07:31,829 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:07:31,830 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455716676] [2019-11-28 17:07:31,830 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:07:31,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:07:32,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:07:32,167 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455716676] [2019-11-28 17:07:32,168 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:07:32,169 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 17:07:32,170 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040467312] [2019-11-28 17:07:32,175 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 17:07:32,176 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:07:32,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 17:07:32,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 17:07:32,193 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 4 states. [2019-11-28 17:07:32,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:07:32,272 INFO L93 Difference]: Finished difference Result 30 states and 36 transitions. [2019-11-28 17:07:32,273 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 17:07:32,274 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-11-28 17:07:32,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:07:32,283 INFO L225 Difference]: With dead ends: 30 [2019-11-28 17:07:32,283 INFO L226 Difference]: Without dead ends: 19 [2019-11-28 17:07:32,286 INFO L630 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 [2019-11-28 17:07:32,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-11-28 17:07:32,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 13. [2019-11-28 17:07:32,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-11-28 17:07:32,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2019-11-28 17:07:32,317 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 9 [2019-11-28 17:07:32,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:07:32,317 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2019-11-28 17:07:32,317 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 17:07:32,318 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2019-11-28 17:07:32,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-28 17:07:32,318 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:07:32,318 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 17:07:32,319 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:07:32,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:07:32,319 INFO L82 PathProgramCache]: Analyzing trace with hash 1181383450, now seen corresponding path program 1 times [2019-11-28 17:07:32,320 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:07:32,320 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524436183] [2019-11-28 17:07:32,320 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:07:32,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:07:32,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:07:32,470 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524436183] [2019-11-28 17:07:32,470 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:07:32,470 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 17:07:32,470 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46966092] [2019-11-28 17:07:32,472 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 17:07:32,473 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:07:32,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 17:07:32,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 17:07:32,473 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand 4 states. [2019-11-28 17:07:32,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:07:32,523 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2019-11-28 17:07:32,524 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 17:07:32,524 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-11-28 17:07:32,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:07:32,525 INFO L225 Difference]: With dead ends: 30 [2019-11-28 17:07:32,525 INFO L226 Difference]: Without dead ends: 20 [2019-11-28 17:07:32,527 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-28 17:07:32,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-11-28 17:07:32,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 16. [2019-11-28 17:07:32,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-28 17:07:32,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2019-11-28 17:07:32,532 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 9 [2019-11-28 17:07:32,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:07:32,532 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2019-11-28 17:07:32,532 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 17:07:32,532 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2019-11-28 17:07:32,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-28 17:07:32,533 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:07:32,533 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 17:07:32,534 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:07:32,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:07:32,534 INFO L82 PathProgramCache]: Analyzing trace with hash -181774814, now seen corresponding path program 1 times [2019-11-28 17:07:32,534 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:07:32,535 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955645176] [2019-11-28 17:07:32,535 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:07:32,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:07:32,689 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:07:32,690 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955645176] [2019-11-28 17:07:32,690 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [606581883] [2019-11-28 17:07:32,690 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 17:07:32,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:07:32,870 INFO L264 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-28 17:07:32,878 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 17:07:32,933 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:07:32,934 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-28 17:07:32,934 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2019-11-28 17:07:32,934 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525918410] [2019-11-28 17:07:32,935 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-28 17:07:32,935 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:07:32,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 17:07:32,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-28 17:07:32,936 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 6 states. [2019-11-28 17:07:33,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:07:33,063 INFO L93 Difference]: Finished difference Result 36 states and 39 transitions. [2019-11-28 17:07:33,064 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-28 17:07:33,064 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2019-11-28 17:07:33,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:07:33,065 INFO L225 Difference]: With dead ends: 36 [2019-11-28 17:07:33,065 INFO L226 Difference]: Without dead ends: 26 [2019-11-28 17:07:33,066 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-11-28 17:07:33,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-11-28 17:07:33,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 22. [2019-11-28 17:07:33,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-11-28 17:07:33,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2019-11-28 17:07:33,072 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 15 [2019-11-28 17:07:33,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:07:33,072 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2019-11-28 17:07:33,072 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-28 17:07:33,073 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2019-11-28 17:07:33,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-28 17:07:33,073 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:07:33,074 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2019-11-28 17:07:33,285 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 17:07:33,285 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:07:33,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:07:33,286 INFO L82 PathProgramCache]: Analyzing trace with hash -192165078, now seen corresponding path program 2 times [2019-11-28 17:07:33,287 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:07:33,287 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925510861] [2019-11-28 17:07:33,288 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:07:33,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:07:33,423 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:07:33,424 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925510861] [2019-11-28 17:07:33,424 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [3897436] [2019-11-28 17:07:33,424 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 17:07:33,596 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-28 17:07:33,597 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-28 17:07:33,600 INFO L264 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-28 17:07:33,603 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 17:07:33,634 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:07:33,635 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-28 17:07:33,635 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2019-11-28 17:07:33,635 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501691875] [2019-11-28 17:07:33,637 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-28 17:07:33,637 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:07:33,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-28 17:07:33,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-11-28 17:07:33,638 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand 7 states. [2019-11-28 17:07:33,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:07:33,849 INFO L93 Difference]: Finished difference Result 42 states and 45 transitions. [2019-11-28 17:07:33,849 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-28 17:07:33,850 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2019-11-28 17:07:33,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:07:33,851 INFO L225 Difference]: With dead ends: 42 [2019-11-28 17:07:33,851 INFO L226 Difference]: Without dead ends: 32 [2019-11-28 17:07:33,852 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2019-11-28 17:07:33,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-11-28 17:07:33,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 28. [2019-11-28 17:07:33,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-11-28 17:07:33,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2019-11-28 17:07:33,859 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 21 [2019-11-28 17:07:33,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:07:33,859 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2019-11-28 17:07:33,860 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-28 17:07:33,860 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2019-11-28 17:07:33,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-28 17:07:33,861 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:07:33,861 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1] [2019-11-28 17:07:34,066 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 17:07:34,067 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:07:34,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:07:34,067 INFO L82 PathProgramCache]: Analyzing trace with hash 125000242, now seen corresponding path program 3 times [2019-11-28 17:07:34,068 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:07:34,068 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942320395] [2019-11-28 17:07:34,068 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:07:34,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:07:34,276 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:07:34,277 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942320395] [2019-11-28 17:07:34,277 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1257329819] [2019-11-28 17:07:34,278 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 17:07:34,683 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-11-28 17:07:34,683 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-28 17:07:34,686 INFO L264 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 19 conjunts are in the unsatisfiable core [2019-11-28 17:07:34,689 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 17:07:34,760 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 17:07:34,794 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-28 17:07:34,795 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 17:07:34,815 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 17:07:34,816 INFO L377 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 19 treesize of output 19 [2019-11-28 17:07:34,817 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2019-11-28 17:07:34,846 INFO L614 ElimStorePlain]: treesize reduction 5, result has 78.3 percent of original size [2019-11-28 17:07:34,846 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-28 17:07:34,846 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:62, output treesize:18 [2019-11-28 17:07:34,874 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 17:07:34,929 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 14 proven. 11 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-11-28 17:07:34,929 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-28 17:07:34,929 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 13 [2019-11-28 17:07:34,930 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414954718] [2019-11-28 17:07:34,930 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-28 17:07:34,930 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:07:34,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-28 17:07:34,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-11-28 17:07:34,931 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand 13 states. [2019-11-28 17:07:35,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:07:35,730 INFO L93 Difference]: Finished difference Result 48 states and 52 transitions. [2019-11-28 17:07:35,731 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-28 17:07:35,731 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 27 [2019-11-28 17:07:35,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:07:35,732 INFO L225 Difference]: With dead ends: 48 [2019-11-28 17:07:35,732 INFO L226 Difference]: Without dead ends: 0 [2019-11-28 17:07:35,733 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=151, Invalid=449, Unknown=0, NotChecked=0, Total=600 [2019-11-28 17:07:35,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-28 17:07:35,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-28 17:07:35,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-28 17:07:35,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-28 17:07:35,734 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2019-11-28 17:07:35,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:07:35,734 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 17:07:35,735 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-28 17:07:35,735 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-28 17:07:35,735 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-28 17:07:35,944 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 17:07:35,948 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-28 17:07:36,132 WARN L192 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 42 [2019-11-28 17:07:36,246 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 31 [2019-11-28 17:07:36,248 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-28 17:07:36,249 INFO L246 CegarLoopResult]: For program point L159(lines 159 222) no Hoare annotation was computed. [2019-11-28 17:07:36,249 INFO L249 CegarLoopResult]: At program point L219(lines 131 223) the Hoare annotation is: true [2019-11-28 17:07:36,249 INFO L246 CegarLoopResult]: For program point L180(lines 180 215) no Hoare annotation was computed. [2019-11-28 17:07:36,249 INFO L246 CegarLoopResult]: For program point L178(lines 178 220) no Hoare annotation was computed. [2019-11-28 17:07:36,250 INFO L246 CegarLoopResult]: For program point L197(lines 197 207) no Hoare annotation was computed. [2019-11-28 17:07:36,250 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-28 17:07:36,250 INFO L246 CegarLoopResult]: For program point L191(line 191) no Hoare annotation was computed. [2019-11-28 17:07:36,250 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-28 17:07:36,250 INFO L246 CegarLoopResult]: For program point L189(lines 189 208) no Hoare annotation was computed. [2019-11-28 17:07:36,250 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-28 17:07:36,250 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 191) no Hoare annotation was computed. [2019-11-28 17:07:36,251 INFO L242 CegarLoopResult]: At program point L214(lines 180 215) the Hoare annotation is: (let ((.cse0 (= 0 |ULTIMATE.start_main_~#Id_MCDC_89__Id_MCDC_95~0.offset|)) (.cse1 (= 1 ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_1~0)) (.cse2 (= ~Id_MCDC_93~0 ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0)) (.cse3 (= 0 (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))))) (or (and .cse0 .cse1 .cse2 .cse3 (<= ~Id_MCDC_93~0 1) (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1))) (and (< (mod (+ ~Id_MCDC_93~0 4294967295) 4294967296) 42) .cse0 .cse1 .cse2 .cse3 (< (mod ~Id_MCDC_93~0 4294967296) 42)))) [2019-11-28 17:07:36,251 INFO L242 CegarLoopResult]: At program point L202(lines 165 221) the Hoare annotation is: (let ((.cse0 (= 0 |ULTIMATE.start_main_~#Id_MCDC_89__Id_MCDC_95~0.offset|)) (.cse1 (= 0 (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))))) (or (and .cse0 (= ~Id_MCDC_93~0 0) .cse1 (= 0 ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0)) (and (<= ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0 1) .cse0 .cse1 (<= 1 ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0) (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (<= ~Id_MCDC_93~0 3)) (let ((.cse3 (mod (+ ~Id_MCDC_93~0 4294967295) 4294967296)) (.cse2 (mod (+ ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0 4294967295) 4294967296))) (and (< .cse2 42) (< .cse3 42) .cse0 (not (= (* .cse3 12) 492)) (not (= 492 (* .cse2 12))) .cse1)))) [2019-11-28 17:07:36,263 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-28 17:07:36,264 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-28 17:07:36,264 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-28 17:07:36,274 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-28 17:07:36,274 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-28 17:07:36,274 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-28 17:07:36,277 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-28 17:07:36,277 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-28 17:07:36,278 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-28 17:07:36,279 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-28 17:07:36,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:07:36 BoogieIcfgContainer [2019-11-28 17:07:36,281 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 17:07:36,282 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 17:07:36,282 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 17:07:36,282 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 17:07:36,283 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:07:31" (3/4) ... [2019-11-28 17:07:36,289 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-28 17:07:36,317 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2019-11-28 17:07:36,318 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-11-28 17:07:36,319 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-28 17:07:36,320 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-28 17:07:36,321 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-28 17:07:36,683 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 17:07:36,683 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 17:07:36,685 INFO L168 Benchmark]: Toolchain (without parser) took 6378.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 210.2 MB). Free memory was 956.3 MB in the beginning and 955.4 MB in the end (delta: 948.4 kB). Peak memory consumption was 211.2 MB. Max. memory is 11.5 GB. [2019-11-28 17:07:36,685 INFO L168 Benchmark]: CDTParser took 0.84 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 17:07:36,686 INFO L168 Benchmark]: CACSL2BoogieTranslator took 525.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -165.2 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. [2019-11-28 17:07:36,686 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 17:07:36,686 INFO L168 Benchmark]: Boogie Preprocessor took 59.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 17:07:36,687 INFO L168 Benchmark]: RCFGBuilder took 769.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 76.6 MB). Peak memory consumption was 76.6 MB. Max. memory is 11.5 GB. [2019-11-28 17:07:36,689 INFO L168 Benchmark]: TraceAbstraction took 4552.34 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 78.6 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 9.1 MB). Peak memory consumption was 87.8 MB. Max. memory is 11.5 GB. [2019-11-28 17:07:36,689 INFO L168 Benchmark]: Witness Printer took 401.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 955.4 MB in the end (delta: 67.3 MB). Peak memory consumption was 67.3 MB. Max. memory is 11.5 GB. [2019-11-28 17:07:36,691 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.84 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 525.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -165.2 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 63.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 59.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 769.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 76.6 MB). Peak memory consumption was 76.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4552.34 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 78.6 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 9.1 MB). Peak memory consumption was 87.8 MB. Max. memory is 11.5 GB. * Witness Printer took 401.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 955.4 MB in the end (delta: 67.3 MB). Peak memory consumption was 67.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 191]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 165]: Loop Invariant [2019-11-28 17:07:36,706 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-28 17:07:36,707 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-28 17:07:36,707 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-28 17:07:36,714 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-28 17:07:36,715 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-28 17:07:36,715 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: ((((0 == Id_MCDC_89__Id_MCDC_95 && Id_MCDC_93 == 0) && 0 == unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492]) && 0 == Id_MCDC_89__Id_MCDC_96) || (((((Id_MCDC_89__Id_MCDC_96 <= 1 && 0 == Id_MCDC_89__Id_MCDC_95) && 0 == unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492]) && 1 <= Id_MCDC_89__Id_MCDC_96) && 0 < Id_MCDC_93 / 4294967296 + 1) && Id_MCDC_93 <= 3)) || ((((((Id_MCDC_89__Id_MCDC_96 + 4294967295) % 4294967296 < 42 && (Id_MCDC_93 + 4294967295) % 4294967296 < 42) && 0 == Id_MCDC_89__Id_MCDC_95) && !((Id_MCDC_93 + 4294967295) % 4294967296 * 12 == 492)) && !(492 == (Id_MCDC_89__Id_MCDC_96 + 4294967295) % 4294967296 * 12)) && 0 == unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492]) - InvariantResult [Line: 131]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 180]: Loop Invariant [2019-11-28 17:07:36,717 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-28 17:07:36,717 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-28 17:07:36,718 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-28 17:07:36,718 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (((((0 == Id_MCDC_89__Id_MCDC_95 && 1 == Id_MCDC_89____CPAchecker_TMP_1) && Id_MCDC_93 == Id_MCDC_89__Id_MCDC_96) && 0 == unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492]) && Id_MCDC_93 <= 1) && 0 < Id_MCDC_93 / 4294967296 + 1) || ((((((Id_MCDC_93 + 4294967295) % 4294967296 < 42 && 0 == Id_MCDC_89__Id_MCDC_95) && 1 == Id_MCDC_89____CPAchecker_TMP_1) && Id_MCDC_93 == Id_MCDC_89__Id_MCDC_96) && 0 == unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492]) && Id_MCDC_93 % 4294967296 < 42) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 1 error locations. Result: SAFE, OverallTime: 4.1s, OverallIterations: 5, TraceHistogramMax: 4, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, HoareTripleCheckerStatistics: 53 SDtfs, 140 SDslu, 99 SDs, 0 SdLazy, 243 SolverSat, 52 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 111 GetRequests, 60 SyntacticMatches, 6 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=4, 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, 5 MinimizatonAttempts, 18 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 17 NumberOfFragments, 158 HoareAnnotationTreeSize, 3 FomulaSimplifications, 745 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 242 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 144 NumberOfCodeBlocks, 138 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 136 ConstructedInterpolants, 0 QuantifiedInterpolants, 17008 SizeOfPredicates, 12 NumberOfNonLiveVariables, 1151 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 40/108 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...