./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/loop-zilu/benchmark05_conjunctive.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/loop-zilu/benchmark05_conjunctive.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-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 ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ecbe73983438c23c42e2ed0d81896f3aad03ba3c52d7d8ba5ad74018d0035eda --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-19 15:17:43,373 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-19 15:17:43,375 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-19 15:17:43,414 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-19 15:17:43,414 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-19 15:17:43,417 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-19 15:17:43,418 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-19 15:17:43,421 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-19 15:17:43,422 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-19 15:17:43,426 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-19 15:17:43,427 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-19 15:17:43,428 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-19 15:17:43,428 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-19 15:17:43,430 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-19 15:17:43,432 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-19 15:17:43,434 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-19 15:17:43,435 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-19 15:17:43,436 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-19 15:17:43,440 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-19 15:17:43,445 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-19 15:17:43,446 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-19 15:17:43,447 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-19 15:17:43,449 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-19 15:17:43,449 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-19 15:17:43,455 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-19 15:17:43,455 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-19 15:17:43,455 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-19 15:17:43,456 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-19 15:17:43,457 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-19 15:17:43,457 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-19 15:17:43,458 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-19 15:17:43,458 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-19 15:17:43,460 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-19 15:17:43,461 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-19 15:17:43,462 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-19 15:17:43,462 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-19 15:17:43,462 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-19 15:17:43,463 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-19 15:17:43,463 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-19 15:17:43,464 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-19 15:17:43,465 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-19 15:17:43,466 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-12-19 15:17:43,498 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-19 15:17:43,498 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-19 15:17:43,498 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-19 15:17:43,499 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-19 15:17:43,499 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-19 15:17:43,500 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-19 15:17:43,500 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-19 15:17:43,500 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-19 15:17:43,500 INFO L138 SettingsManager]: * Use SBE=true [2021-12-19 15:17:43,501 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-19 15:17:43,501 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-19 15:17:43,502 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-19 15:17:43,502 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-19 15:17:43,502 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-19 15:17:43,502 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-19 15:17:43,502 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-19 15:17:43,503 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-19 15:17:43,503 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-19 15:17:43,503 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-12-19 15:17:43,503 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-19 15:17:43,503 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-19 15:17:43,504 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-19 15:17:43,504 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-19 15:17:43,504 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-19 15:17:43,504 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-19 15:17:43,504 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-19 15:17:43,504 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-19 15:17:43,505 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-19 15:17:43,505 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-19 15:17:43,505 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-19 15:17:43,505 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-19 15:17:43,505 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-19 15:17:43,506 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-19 15:17:43,506 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-19 15:17:43,506 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ecbe73983438c23c42e2ed0d81896f3aad03ba3c52d7d8ba5ad74018d0035eda [2021-12-19 15:17:43,725 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-19 15:17:43,745 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-19 15:17:43,748 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-19 15:17:43,748 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-19 15:17:43,749 INFO L275 PluginConnector]: CDTParser initialized [2021-12-19 15:17:43,749 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-zilu/benchmark05_conjunctive.i [2021-12-19 15:17:43,810 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac254525a/7ccc7d5f7d4c4da08a3102bbb34f6652/FLAG648b8ff7d [2021-12-19 15:17:44,159 INFO L306 CDTParser]: Found 1 translation units. [2021-12-19 15:17:44,159 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark05_conjunctive.i [2021-12-19 15:17:44,164 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac254525a/7ccc7d5f7d4c4da08a3102bbb34f6652/FLAG648b8ff7d [2021-12-19 15:17:44,604 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac254525a/7ccc7d5f7d4c4da08a3102bbb34f6652 [2021-12-19 15:17:44,606 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-19 15:17:44,608 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-19 15:17:44,611 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-19 15:17:44,611 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-19 15:17:44,614 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-19 15:17:44,614 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 03:17:44" (1/1) ... [2021-12-19 15:17:44,615 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38b877a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:17:44, skipping insertion in model container [2021-12-19 15:17:44,615 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 03:17:44" (1/1) ... [2021-12-19 15:17:44,621 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-19 15:17:44,631 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-19 15:17:44,725 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark05_conjunctive.i[873,886] [2021-12-19 15:17:44,730 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-19 15:17:44,736 INFO L203 MainTranslator]: Completed pre-run [2021-12-19 15:17:44,746 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark05_conjunctive.i[873,886] [2021-12-19 15:17:44,748 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-19 15:17:44,759 INFO L208 MainTranslator]: Completed translation [2021-12-19 15:17:44,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:17:44 WrapperNode [2021-12-19 15:17:44,760 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-19 15:17:44,761 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-19 15:17:44,761 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-19 15:17:44,762 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-19 15:17:44,768 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:17:44" (1/1) ... [2021-12-19 15:17:44,774 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:17:44" (1/1) ... [2021-12-19 15:17:44,794 INFO L137 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 42 [2021-12-19 15:17:44,794 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-19 15:17:44,795 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-19 15:17:44,795 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-19 15:17:44,795 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-19 15:17:44,802 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:17:44" (1/1) ... [2021-12-19 15:17:44,802 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:17:44" (1/1) ... [2021-12-19 15:17:44,803 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:17:44" (1/1) ... [2021-12-19 15:17:44,803 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:17:44" (1/1) ... [2021-12-19 15:17:44,805 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:17:44" (1/1) ... [2021-12-19 15:17:44,811 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:17:44" (1/1) ... [2021-12-19 15:17:44,812 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:17:44" (1/1) ... [2021-12-19 15:17:44,813 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-19 15:17:44,814 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-19 15:17:44,814 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-19 15:17:44,814 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-19 15:17:44,819 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:17:44" (1/1) ... [2021-12-19 15:17:44,825 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-19 15:17:44,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:17:44,848 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-19 15:17:44,870 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-19 15:17:44,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-19 15:17:44,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-19 15:17:44,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-19 15:17:44,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-19 15:17:44,969 INFO L236 CfgBuilder]: Building ICFG [2021-12-19 15:17:44,969 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-19 15:17:45,063 INFO L277 CfgBuilder]: Performing block encoding [2021-12-19 15:17:45,068 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-19 15:17:45,068 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-19 15:17:45,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 03:17:45 BoogieIcfgContainer [2021-12-19 15:17:45,070 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-19 15:17:45,071 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-19 15:17:45,071 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-19 15:17:45,074 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-19 15:17:45,074 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 03:17:44" (1/3) ... [2021-12-19 15:17:45,074 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@442860be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 03:17:45, skipping insertion in model container [2021-12-19 15:17:45,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:17:44" (2/3) ... [2021-12-19 15:17:45,075 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@442860be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 03:17:45, skipping insertion in model container [2021-12-19 15:17:45,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 03:17:45" (3/3) ... [2021-12-19 15:17:45,076 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark05_conjunctive.i [2021-12-19 15:17:45,080 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-19 15:17:45,080 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-12-19 15:17:45,109 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-19 15:17:45,115 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-19 15:17:45,116 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-12-19 15:17:45,126 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 18 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:17:45,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-12-19 15:17:45,130 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:17:45,130 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-12-19 15:17:45,131 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-12-19 15:17:45,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:17:45,135 INFO L85 PathProgramCache]: Analyzing trace with hash 28695973, now seen corresponding path program 1 times [2021-12-19 15:17:45,141 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:17:45,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204388501] [2021-12-19 15:17:45,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:17:45,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:17:45,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:17:45,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:17:45,277 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:17:45,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204388501] [2021-12-19 15:17:45,278 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204388501] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 15:17:45,278 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 15:17:45,278 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-19 15:17:45,280 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109695845] [2021-12-19 15:17:45,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 15:17:45,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-19 15:17:45,284 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:17:45,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-19 15:17:45,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-19 15:17:45,334 INFO L87 Difference]: Start difference. First operand has 19 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 18 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 4 states have (on average 1.25) internal successors, (5), 5 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:17:45,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:17:45,432 INFO L93 Difference]: Finished difference Result 32 states and 38 transitions. [2021-12-19 15:17:45,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-19 15:17:45,435 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 5 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-12-19 15:17:45,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:17:45,440 INFO L225 Difference]: With dead ends: 32 [2021-12-19 15:17:45,440 INFO L226 Difference]: Without dead ends: 13 [2021-12-19 15:17:45,442 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-19 15:17:45,445 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 33 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-19 15:17:45,446 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 37 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-19 15:17:45,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-12-19 15:17:45,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2021-12-19 15:17:45,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:17:45,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2021-12-19 15:17:45,469 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 5 [2021-12-19 15:17:45,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:17:45,470 INFO L470 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2021-12-19 15:17:45,470 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 5 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:17:45,470 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2021-12-19 15:17:45,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-12-19 15:17:45,470 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:17:45,470 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-12-19 15:17:45,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-19 15:17:45,471 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-12-19 15:17:45,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:17:45,472 INFO L85 PathProgramCache]: Analyzing trace with hash 889575213, now seen corresponding path program 1 times [2021-12-19 15:17:45,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:17:45,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618966485] [2021-12-19 15:17:45,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:17:45,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:17:45,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:17:45,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:17:45,509 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:17:45,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618966485] [2021-12-19 15:17:45,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618966485] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 15:17:45,510 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 15:17:45,510 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-19 15:17:45,510 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625051026] [2021-12-19 15:17:45,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 15:17:45,511 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-19 15:17:45,511 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:17:45,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-19 15:17:45,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-19 15:17:45,513 INFO L87 Difference]: Start difference. First operand 12 states and 13 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:17:45,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:17:45,531 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2021-12-19 15:17:45,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-19 15:17:45,531 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-12-19 15:17:45,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:17:45,532 INFO L225 Difference]: With dead ends: 12 [2021-12-19 15:17:45,532 INFO L226 Difference]: Without dead ends: 11 [2021-12-19 15:17:45,532 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-19 15:17:45,533 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 8 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 15:17:45,534 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 14 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 15:17:45,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-12-19 15:17:45,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-12-19 15:17:45,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:17:45,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2021-12-19 15:17:45,537 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 6 [2021-12-19 15:17:45,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:17:45,537 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2021-12-19 15:17:45,537 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:17:45,537 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2021-12-19 15:17:45,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-12-19 15:17:45,538 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:17:45,538 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 15:17:45,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-19 15:17:45,538 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-12-19 15:17:45,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:17:45,539 INFO L85 PathProgramCache]: Analyzing trace with hash 183289487, now seen corresponding path program 1 times [2021-12-19 15:17:45,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:17:45,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815333858] [2021-12-19 15:17:45,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:17:45,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:17:45,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:17:45,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:17:45,583 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:17:45,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815333858] [2021-12-19 15:17:45,583 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815333858] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 15:17:45,583 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 15:17:45,584 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-19 15:17:45,584 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294989018] [2021-12-19 15:17:45,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 15:17:45,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-19 15:17:45,585 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:17:45,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-19 15:17:45,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-19 15:17:45,586 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:17:45,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:17:45,627 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2021-12-19 15:17:45,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-19 15:17:45,628 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-12-19 15:17:45,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:17:45,629 INFO L225 Difference]: With dead ends: 19 [2021-12-19 15:17:45,629 INFO L226 Difference]: Without dead ends: 18 [2021-12-19 15:17:45,629 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-19 15:17:45,631 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 23 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 15:17:45,631 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 14 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 15:17:45,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-12-19 15:17:45,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 16. [2021-12-19 15:17:45,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 15 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:17:45,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2021-12-19 15:17:45,644 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 8 [2021-12-19 15:17:45,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:17:45,644 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2021-12-19 15:17:45,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:17:45,645 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2021-12-19 15:17:45,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-19 15:17:45,647 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:17:45,647 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 15:17:45,647 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-19 15:17:45,648 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-12-19 15:17:45,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:17:45,649 INFO L85 PathProgramCache]: Analyzing trace with hash 1387006858, now seen corresponding path program 1 times [2021-12-19 15:17:45,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:17:45,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471211110] [2021-12-19 15:17:45,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:17:45,650 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:17:45,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:17:45,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:17:45,697 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:17:45,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471211110] [2021-12-19 15:17:45,697 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471211110] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 15:17:45,697 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 15:17:45,697 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-19 15:17:45,698 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480421888] [2021-12-19 15:17:45,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 15:17:45,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-19 15:17:45,698 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:17:45,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-19 15:17:45,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-19 15:17:45,699 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:17:45,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:17:45,715 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2021-12-19 15:17:45,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-19 15:17:45,716 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-12-19 15:17:45,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:17:45,717 INFO L225 Difference]: With dead ends: 16 [2021-12-19 15:17:45,717 INFO L226 Difference]: Without dead ends: 15 [2021-12-19 15:17:45,717 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-19 15:17:45,718 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 5 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 15:17:45,719 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 10 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 15:17:45,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-12-19 15:17:45,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-12-19 15:17:45,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:17:45,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2021-12-19 15:17:45,722 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 9 [2021-12-19 15:17:45,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:17:45,723 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2021-12-19 15:17:45,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:17:45,723 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2021-12-19 15:17:45,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-12-19 15:17:45,724 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:17:45,724 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2021-12-19 15:17:45,724 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-19 15:17:45,724 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-12-19 15:17:45,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:17:45,725 INFO L85 PathProgramCache]: Analyzing trace with hash 742287368, now seen corresponding path program 1 times [2021-12-19 15:17:45,725 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:17:45,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506108606] [2021-12-19 15:17:45,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:17:45,726 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:17:45,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:17:45,786 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:17:45,786 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:17:45,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506108606] [2021-12-19 15:17:45,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506108606] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-19 15:17:45,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1572367875] [2021-12-19 15:17:45,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:17:45,787 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:17:45,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:17:45,789 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-19 15:17:45,794 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-19 15:17:45,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:17:45,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-19 15:17:45,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:17:45,992 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:17:45,992 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 15:17:46,079 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:17:46,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1572367875] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 15:17:46,080 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-19 15:17:46,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2021-12-19 15:17:46,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447966424] [2021-12-19 15:17:46,081 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-19 15:17:46,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-19 15:17:46,082 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:17:46,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-19 15:17:46,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-12-19 15:17:46,086 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand has 11 states, 10 states have (on average 2.2) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:17:46,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:17:46,163 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2021-12-19 15:17:46,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-19 15:17:46,164 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.2) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-12-19 15:17:46,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:17:46,165 INFO L225 Difference]: With dead ends: 18 [2021-12-19 15:17:46,166 INFO L226 Difference]: Without dead ends: 0 [2021-12-19 15:17:46,166 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2021-12-19 15:17:46,171 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 16 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 15:17:46,174 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 24 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 15:17:46,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-19 15:17:46,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-19 15:17:46,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:17:46,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-19 15:17:46,176 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2021-12-19 15:17:46,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:17:46,176 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-19 15:17:46,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.2) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:17:46,176 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-19 15:17:46,177 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-19 15:17:46,179 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2021-12-19 15:17:46,182 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2021-12-19 15:17:46,182 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2021-12-19 15:17:46,182 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2021-12-19 15:17:46,207 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-19 15:17:46,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:17:46,406 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-19 15:17:46,430 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2021-12-19 15:17:46,430 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-19 15:17:46,430 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2021-12-19 15:17:46,431 INFO L854 garLoopResultBuilder]: At program point L29(lines 19 30) the Hoare annotation is: (<= |ULTIMATE.start_main_~n~0#1| 2147483647) [2021-12-19 15:17:46,431 INFO L858 garLoopResultBuilder]: For program point L25(line 25) no Hoare annotation was computed. [2021-12-19 15:17:46,431 INFO L858 garLoopResultBuilder]: For program point L25-1(line 25) no Hoare annotation was computed. [2021-12-19 15:17:46,431 INFO L858 garLoopResultBuilder]: For program point L23(line 23) no Hoare annotation was computed. [2021-12-19 15:17:46,431 INFO L858 garLoopResultBuilder]: For program point L15(lines 15 17) no Hoare annotation was computed. [2021-12-19 15:17:46,431 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-19 15:17:46,432 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2021-12-19 15:17:46,432 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2021-12-19 15:17:46,432 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-19 15:17:46,432 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-19 15:17:46,432 INFO L858 garLoopResultBuilder]: For program point L26(line 26) no Hoare annotation was computed. [2021-12-19 15:17:46,432 INFO L858 garLoopResultBuilder]: For program point L26-1(line 26) no Hoare annotation was computed. [2021-12-19 15:17:46,433 INFO L858 garLoopResultBuilder]: For program point L26-2(line 26) no Hoare annotation was computed. [2021-12-19 15:17:46,433 INFO L854 garLoopResultBuilder]: At program point L26-4(lines 24 27) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_main_~n~0#1| 2147483647)) (.cse1 (<= 0 (+ |ULTIMATE.start_main_~y~0#1| 2147483648))) (.cse2 (<= 0 |ULTIMATE.start_main_~x~0#1|))) (or (and .cse0 .cse1 .cse2 (< |ULTIMATE.start_main_~y~0#1| (+ |ULTIMATE.start_main_~x~0#1| 1))) (and .cse0 .cse1 .cse2 (<= |ULTIMATE.start_main_~y~0#1| 2147483646)))) [2021-12-19 15:17:46,433 INFO L858 garLoopResultBuilder]: For program point L24-2(lines 24 27) no Hoare annotation was computed. [2021-12-19 15:17:46,433 INFO L858 garLoopResultBuilder]: For program point L14(lines 14 18) no Hoare annotation was computed. [2021-12-19 15:17:46,437 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-12-19 15:17:46,438 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-19 15:17:46,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 03:17:46 BoogieIcfgContainer [2021-12-19 15:17:46,456 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-19 15:17:46,456 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-19 15:17:46,456 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-19 15:17:46,457 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-19 15:17:46,457 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 03:17:45" (3/4) ... [2021-12-19 15:17:46,460 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-19 15:17:46,467 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-12-19 15:17:46,467 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-12-19 15:17:46,467 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-19 15:17:46,467 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-19 15:17:46,487 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-19 15:17:46,487 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-19 15:17:46,488 INFO L158 Benchmark]: Toolchain (without parser) took 1879.45ms. Allocated memory is still 92.3MB. Free memory was 52.6MB in the beginning and 35.5MB in the end (delta: 17.1MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. [2021-12-19 15:17:46,488 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 92.3MB. Free memory was 68.9MB in the beginning and 68.8MB in the end (delta: 85.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-19 15:17:46,488 INFO L158 Benchmark]: CACSL2BoogieTranslator took 149.50ms. Allocated memory is still 92.3MB. Free memory was 52.3MB in the beginning and 42.8MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-19 15:17:46,489 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.29ms. Allocated memory is still 92.3MB. Free memory was 42.8MB in the beginning and 41.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-19 15:17:46,489 INFO L158 Benchmark]: Boogie Preprocessor took 18.31ms. Allocated memory is still 92.3MB. Free memory was 41.4MB in the beginning and 40.5MB in the end (delta: 908.7kB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-19 15:17:46,489 INFO L158 Benchmark]: RCFGBuilder took 255.59ms. Allocated memory is still 92.3MB. Free memory was 40.4MB in the beginning and 65.4MB in the end (delta: -25.0MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. [2021-12-19 15:17:46,490 INFO L158 Benchmark]: TraceAbstraction took 1385.01ms. Allocated memory is still 92.3MB. Free memory was 64.9MB in the beginning and 38.0MB in the end (delta: 26.8MB). Peak memory consumption was 28.6MB. Max. memory is 16.1GB. [2021-12-19 15:17:46,490 INFO L158 Benchmark]: Witness Printer took 31.06ms. Allocated memory is still 92.3MB. Free memory was 38.0MB in the beginning and 35.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-19 15:17:46,491 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 92.3MB. Free memory was 68.9MB in the beginning and 68.8MB in the end (delta: 85.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 149.50ms. Allocated memory is still 92.3MB. Free memory was 52.3MB in the beginning and 42.8MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.29ms. Allocated memory is still 92.3MB. Free memory was 42.8MB in the beginning and 41.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 18.31ms. Allocated memory is still 92.3MB. Free memory was 41.4MB in the beginning and 40.5MB in the end (delta: 908.7kB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 255.59ms. Allocated memory is still 92.3MB. Free memory was 40.4MB in the beginning and 65.4MB in the end (delta: -25.0MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1385.01ms. Allocated memory is still 92.3MB. Free memory was 64.9MB in the beginning and 38.0MB in the end (delta: 26.8MB). Peak memory consumption was 28.6MB. Max. memory is 16.1GB. * Witness Printer took 31.06ms. Allocated memory is still 92.3MB. Free memory was 38.0MB in the beginning and 35.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 19 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 5, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 85 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 85 mSDsluCounter, 99 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 62 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 107 IncrementalHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 37 mSDtfsCounter, 107 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 56 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, InterpolantAutomatonStates: 26, 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, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 5 NumberOfFragments, 36 HoareAnnotationTreeSize, 2 FomulaSimplifications, 30 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 63 ConstructedInterpolants, 0 QuantifiedInterpolants, 225 SizeOfPredicates, 6 NumberOfNonLiveVariables, 55 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 1/15 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: (((n <= 2147483647 && 0 <= y + 2147483648) && 0 <= x) && y < x + 1) || (((n <= 2147483647 && 0 <= y + 2147483648) && 0 <= x) && y <= 2147483646) - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: n <= 2147483647 RESULT: Ultimate proved your program to be correct! [2021-12-19 15:17:46,525 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE