./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-acceleration/phases_2-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d 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_1.3.100.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-acceleration/phases_2-2.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 85d8c0857ba90e2936a809e6bce9dcb97e8e7e59 .............................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 00:58:13,904 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 00:58:13,907 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 00:58:13,946 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 00:58:13,946 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 00:58:13,960 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 00:58:13,962 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 00:58:13,965 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 00:58:13,968 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 00:58:13,970 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 00:58:13,972 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 00:58:13,975 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 00:58:13,975 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 00:58:13,978 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 00:58:13,979 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 00:58:13,982 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 00:58:13,983 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 00:58:13,984 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 00:58:13,987 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 00:58:13,990 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 00:58:13,994 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 00:58:13,995 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 00:58:13,996 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 00:58:13,997 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 00:58:14,000 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 00:58:14,000 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 00:58:14,000 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 00:58:14,001 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 00:58:14,002 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 00:58:14,002 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 00:58:14,003 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 00:58:14,003 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 00:58:14,004 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 00:58:14,005 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 00:58:14,006 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 00:58:14,006 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 00:58:14,007 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 00:58:14,007 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 00:58:14,007 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 00:58:14,008 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 00:58:14,009 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 00:58:14,010 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 00:58:14,038 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 00:58:14,038 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 00:58:14,040 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 00:58:14,040 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 00:58:14,040 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 00:58:14,041 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 00:58:14,041 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 00:58:14,041 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 00:58:14,041 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 00:58:14,042 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 00:58:14,042 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 00:58:14,042 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 00:58:14,042 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 00:58:14,043 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 00:58:14,043 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 00:58:14,043 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 00:58:14,043 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 00:58:14,044 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 00:58:14,044 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 00:58:14,044 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 00:58:14,044 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 00:58:14,045 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:58:14,045 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 00:58:14,045 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 00:58:14,046 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 00:58:14,046 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 00:58:14,046 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 00:58:14,046 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 00:58:14,047 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 00:58:14,047 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(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 -> 85d8c0857ba90e2936a809e6bce9dcb97e8e7e59 [2020-10-20 00:58:14,270 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 00:58:14,283 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 00:58:14,287 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 00:58:14,289 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 00:58:14,290 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 00:58:14,291 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-acceleration/phases_2-2.c [2020-10-20 00:58:14,359 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c75d1f303/6ad2ac7a3ecf42cbaeb99a0fd0834455/FLAG94e85a64a [2020-10-20 00:58:14,827 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 00:58:14,828 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-acceleration/phases_2-2.c [2020-10-20 00:58:14,834 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c75d1f303/6ad2ac7a3ecf42cbaeb99a0fd0834455/FLAG94e85a64a [2020-10-20 00:58:15,188 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c75d1f303/6ad2ac7a3ecf42cbaeb99a0fd0834455 [2020-10-20 00:58:15,192 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 00:58:15,199 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 00:58:15,201 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 00:58:15,201 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 00:58:15,205 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 00:58:15,206 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:58:15" (1/1) ... [2020-10-20 00:58:15,210 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4372bfeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:58:15, skipping insertion in model container [2020-10-20 00:58:15,210 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:58:15" (1/1) ... [2020-10-20 00:58:15,218 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 00:58:15,237 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 00:58:15,474 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:58:15,484 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 00:58:15,500 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:58:15,516 INFO L208 MainTranslator]: Completed translation [2020-10-20 00:58:15,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:58:15 WrapperNode [2020-10-20 00:58:15,517 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 00:58:15,518 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 00:58:15,518 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 00:58:15,519 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 00:58:15,527 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:58:15" (1/1) ... [2020-10-20 00:58:15,534 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:58:15" (1/1) ... [2020-10-20 00:58:15,549 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 00:58:15,550 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 00:58:15,550 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 00:58:15,550 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 00:58:15,559 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:58:15" (1/1) ... [2020-10-20 00:58:15,559 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:58:15" (1/1) ... [2020-10-20 00:58:15,560 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:58:15" (1/1) ... [2020-10-20 00:58:15,561 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:58:15" (1/1) ... [2020-10-20 00:58:15,564 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:58:15" (1/1) ... [2020-10-20 00:58:15,568 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:58:15" (1/1) ... [2020-10-20 00:58:15,569 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:58:15" (1/1) ... [2020-10-20 00:58:15,571 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 00:58:15,572 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 00:58:15,572 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 00:58:15,572 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 00:58:15,573 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:58:15" (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 [2020-10-20 00:58:15,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 00:58:15,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 00:58:15,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 00:58:15,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 00:58:15,847 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 00:58:15,847 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-20 00:58:15,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:58:15 BoogieIcfgContainer [2020-10-20 00:58:15,849 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 00:58:15,851 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 00:58:15,851 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 00:58:15,854 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 00:58:15,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 12:58:15" (1/3) ... [2020-10-20 00:58:15,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eee2f84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:58:15, skipping insertion in model container [2020-10-20 00:58:15,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:58:15" (2/3) ... [2020-10-20 00:58:15,856 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eee2f84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:58:15, skipping insertion in model container [2020-10-20 00:58:15,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:58:15" (3/3) ... [2020-10-20 00:58:15,858 INFO L111 eAbstractionObserver]: Analyzing ICFG phases_2-2.c [2020-10-20 00:58:15,869 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 00:58:15,876 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 00:58:15,891 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-20 00:58:15,926 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 00:58:15,926 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 00:58:15,927 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 00:58:15,927 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 00:58:15,927 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 00:58:15,928 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 00:58:15,928 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 00:58:15,928 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 00:58:15,947 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2020-10-20 00:58:15,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-20 00:58:15,954 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:58:15,956 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:58:15,956 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:58:15,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:58:15,964 INFO L82 PathProgramCache]: Analyzing trace with hash 1807274184, now seen corresponding path program 1 times [2020-10-20 00:58:15,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:58:15,976 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369475376] [2020-10-20 00:58:15,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:58:16,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:58:16,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:58:16,116 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369475376] [2020-10-20 00:58:16,117 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:58:16,118 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 00:58:16,128 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162137769] [2020-10-20 00:58:16,133 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 00:58:16,134 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 00:58:16,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 00:58:16,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 00:58:16,151 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 2 states. [2020-10-20 00:58:16,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:58:16,168 INFO L93 Difference]: Finished difference Result 20 states and 24 transitions. [2020-10-20 00:58:16,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 00:58:16,170 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-10-20 00:58:16,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:58:16,180 INFO L225 Difference]: With dead ends: 20 [2020-10-20 00:58:16,180 INFO L226 Difference]: Without dead ends: 9 [2020-10-20 00:58:16,184 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 00:58:16,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2020-10-20 00:58:16,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2020-10-20 00:58:16,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-20 00:58:16,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2020-10-20 00:58:16,213 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 10 transitions. Word has length 7 [2020-10-20 00:58:16,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:58:16,214 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 10 transitions. [2020-10-20 00:58:16,214 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 00:58:16,214 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2020-10-20 00:58:16,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-20 00:58:16,215 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:58:16,215 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:58:16,216 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 00:58:16,216 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:58:16,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:58:16,217 INFO L82 PathProgramCache]: Analyzing trace with hash 1806976274, now seen corresponding path program 1 times [2020-10-20 00:58:16,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:58:16,218 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678789379] [2020-10-20 00:58:16,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:58:16,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:58:16,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:58:16,453 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678789379] [2020-10-20 00:58:16,453 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:58:16,453 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-20 00:58:16,453 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204557883] [2020-10-20 00:58:16,455 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 00:58:16,456 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 00:58:16,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 00:58:16,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-20 00:58:16,457 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. Second operand 6 states. [2020-10-20 00:58:16,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:58:16,531 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2020-10-20 00:58:16,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 00:58:16,532 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 7 [2020-10-20 00:58:16,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:58:16,533 INFO L225 Difference]: With dead ends: 15 [2020-10-20 00:58:16,533 INFO L226 Difference]: Without dead ends: 11 [2020-10-20 00:58:16,534 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-20 00:58:16,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-10-20 00:58:16,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-10-20 00:58:16,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-10-20 00:58:16,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2020-10-20 00:58:16,539 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 7 [2020-10-20 00:58:16,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:58:16,540 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2020-10-20 00:58:16,540 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 00:58:16,540 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2020-10-20 00:58:16,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-20 00:58:16,541 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:58:16,541 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:58:16,541 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 00:58:16,542 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:58:16,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:58:16,542 INFO L82 PathProgramCache]: Analyzing trace with hash 1389601687, now seen corresponding path program 1 times [2020-10-20 00:58:16,543 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:58:16,543 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566434069] [2020-10-20 00:58:16,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:58:16,557 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-20 00:58:16,558 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1389803463] [2020-10-20 00:58:16,559 INFO L95 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 [2020-10-20 00:58:16,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:58:16,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-20 00:58:16,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:58:16,807 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 00:58:16,814 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-20 00:58:16,841 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:58:16,842 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566434069] [2020-10-20 00:58:16,842 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-10-20 00:58:16,842 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1389803463] [2020-10-20 00:58:16,843 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-20 00:58:16,843 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-20 00:58:16,843 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111727929] [2020-10-20 00:58:16,843 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-20 00:58:16,844 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 00:58:16,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-20 00:58:16,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-20 00:58:16,845 INFO L87 Difference]: Start difference. First operand 11 states and 13 transitions. Second operand 7 states. [2020-10-20 00:58:16,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:58:16,876 INFO L93 Difference]: Finished difference Result 12 states and 14 transitions. [2020-10-20 00:58:16,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 00:58:16,877 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 9 [2020-10-20 00:58:16,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:58:16,877 INFO L225 Difference]: With dead ends: 12 [2020-10-20 00:58:16,878 INFO L226 Difference]: Without dead ends: 0 [2020-10-20 00:58:16,878 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-20 00:58:16,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-20 00:58:16,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-20 00:58:16,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-20 00:58:16,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 00:58:16,879 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2020-10-20 00:58:16,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:58:16,880 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 00:58:16,880 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-20 00:58:16,880 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-20 00:58:16,880 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 00:58:17,086 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-10-20 00:58:17,090 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-20 00:58:17,115 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-20 00:58:17,115 INFO L274 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2020-10-20 00:58:17,115 INFO L274 CegarLoopResult]: For program point L23-2(lines 23 29) no Hoare annotation was computed. [2020-10-20 00:58:17,115 INFO L274 CegarLoopResult]: For program point L11(lines 11 13) no Hoare annotation was computed. [2020-10-20 00:58:17,116 INFO L277 CegarLoopResult]: At program point L11-2(lines 1 32) the Hoare annotation is: true [2020-10-20 00:58:17,116 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-20 00:58:17,116 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-20 00:58:17,116 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-20 00:58:17,116 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-20 00:58:17,116 INFO L274 CegarLoopResult]: For program point L24(lines 24 28) no Hoare annotation was computed. [2020-10-20 00:58:17,116 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 00:58:17,117 INFO L270 CegarLoopResult]: At program point L24-2(lines 23 29) the Hoare annotation is: (and (= ULTIMATE.start_main_~x~0 1) (<= (+ (* 4294967296 (div ULTIMATE.start_main_~y~0 4294967296)) 1) ULTIMATE.start_main_~y~0)) [2020-10-20 00:58:17,117 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-10-20 00:58:17,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 12:58:17 BoogieIcfgContainer [2020-10-20 00:58:17,137 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 00:58:17,137 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 00:58:17,137 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 00:58:17,137 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 00:58:17,138 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:58:15" (3/4) ... [2020-10-20 00:58:17,142 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 00:58:17,153 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-20 00:58:17,153 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-20 00:58:17,153 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 00:58:17,154 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 00:58:17,208 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 00:58:17,208 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 00:58:17,210 INFO L168 Benchmark]: Toolchain (without parser) took 2015.69 ms. Allocated memory was 38.3 MB in the beginning and 48.8 MB in the end (delta: 10.5 MB). Free memory was 12.9 MB in the beginning and 32.5 MB in the end (delta: -19.6 MB). Peak memory consumption was 9.4 MB. Max. memory is 14.3 GB. [2020-10-20 00:58:17,211 INFO L168 Benchmark]: CDTParser took 0.40 ms. Allocated memory is still 37.7 MB. Free memory was 16.2 MB in the beginning and 16.1 MB in the end (delta: 47.5 kB). Peak memory consumption was 47.5 kB. Max. memory is 14.3 GB. [2020-10-20 00:58:17,212 INFO L168 Benchmark]: CACSL2BoogieTranslator took 316.89 ms. Allocated memory was 38.3 MB in the beginning and 43.5 MB in the end (delta: 5.2 MB). Free memory was 12.0 MB in the beginning and 26.6 MB in the end (delta: -14.5 MB). Peak memory consumption was 6.6 MB. Max. memory is 14.3 GB. [2020-10-20 00:58:17,213 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.56 ms. Allocated memory is still 43.5 MB. Free memory was 26.6 MB in the beginning and 24.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. [2020-10-20 00:58:17,214 INFO L168 Benchmark]: Boogie Preprocessor took 21.51 ms. Allocated memory is still 43.5 MB. Free memory was 24.9 MB in the beginning and 23.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 14.3 GB. [2020-10-20 00:58:17,214 INFO L168 Benchmark]: RCFGBuilder took 277.71 ms. Allocated memory was 43.5 MB in the beginning and 45.1 MB in the end (delta: 1.6 MB). Free memory was 23.5 MB in the beginning and 23.4 MB in the end (delta: 98.7 kB). Peak memory consumption was 12.1 MB. Max. memory is 14.3 GB. [2020-10-20 00:58:17,215 INFO L168 Benchmark]: TraceAbstraction took 1286.07 ms. Allocated memory was 45.1 MB in the beginning and 47.7 MB in the end (delta: 2.6 MB). Free memory was 23.0 MB in the beginning and 15.5 MB in the end (delta: 7.5 MB). Peak memory consumption was 10.1 MB. Max. memory is 14.3 GB. [2020-10-20 00:58:17,216 INFO L168 Benchmark]: Witness Printer took 70.86 ms. Allocated memory was 47.7 MB in the beginning and 48.8 MB in the end (delta: 1.0 MB). Free memory was 15.5 MB in the beginning and 32.5 MB in the end (delta: -16.9 MB). Peak memory consumption was 2.6 MB. Max. memory is 14.3 GB. [2020-10-20 00:58:17,221 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40 ms. Allocated memory is still 37.7 MB. Free memory was 16.2 MB in the beginning and 16.1 MB in the end (delta: 47.5 kB). Peak memory consumption was 47.5 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 316.89 ms. Allocated memory was 38.3 MB in the beginning and 43.5 MB in the end (delta: 5.2 MB). Free memory was 12.0 MB in the beginning and 26.6 MB in the end (delta: -14.5 MB). Peak memory consumption was 6.6 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 31.56 ms. Allocated memory is still 43.5 MB. Free memory was 26.6 MB in the beginning and 24.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 21.51 ms. Allocated memory is still 43.5 MB. Free memory was 24.9 MB in the beginning and 23.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 14.3 GB. * RCFGBuilder took 277.71 ms. Allocated memory was 43.5 MB in the beginning and 45.1 MB in the end (delta: 1.6 MB). Free memory was 23.5 MB in the beginning and 23.4 MB in the end (delta: 98.7 kB). Peak memory consumption was 12.1 MB. Max. memory is 14.3 GB. * TraceAbstraction took 1286.07 ms. Allocated memory was 45.1 MB in the beginning and 47.7 MB in the end (delta: 2.6 MB). Free memory was 23.0 MB in the beginning and 15.5 MB in the end (delta: 7.5 MB). Peak memory consumption was 10.1 MB. Max. memory is 14.3 GB. * Witness Printer took 70.86 ms. Allocated memory was 47.7 MB in the beginning and 48.8 MB in the end (delta: 1.0 MB). Free memory was 15.5 MB in the beginning and 32.5 MB in the end (delta: -16.9 MB). Peak memory consumption was 2.6 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: 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: 23]: Loop Invariant Derived loop invariant: x == 1 && 4294967296 * (y / 4294967296) + 1 <= y - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.1s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 22 SDtfs, 9 SDslu, 13 SDs, 0 SdLazy, 38 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 5 NumberOfFragments, 14 HoareAnnotationTreeSize, 2 FomulaSimplifications, 21 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 712 SizeOfPredicates, 4 NumberOfNonLiveVariables, 48 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 0/1 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...