./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Piecewise.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ed4a7e47-2e71-463a-bf24-939a7245428b/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ed4a7e47-2e71-463a-bf24-939a7245428b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ed4a7e47-2e71-463a-bf24-939a7245428b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ed4a7e47-2e71-463a-bf24-939a7245428b/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted/Piecewise.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ed4a7e47-2e71-463a-bf24-939a7245428b/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ed4a7e47-2e71-463a-bf24-939a7245428b/bin/uautomizer --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 64bit --witnessprinter.graph.data.programhash 36155f521cfe170e9c03fd915618e68821fe0430 ................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 15:52:05,463 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:52:05,464 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:52:05,555 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:52:05,557 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:52:05,558 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:52:05,560 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:52:05,563 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:52:05,570 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:52:05,578 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:52:05,580 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:52:05,583 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:52:05,584 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:52:05,588 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:52:05,590 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:52:05,594 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:52:05,596 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:52:05,599 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:52:05,606 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:52:05,610 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:52:05,617 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:52:05,619 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:52:05,620 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:52:05,622 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:52:05,628 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:52:05,630 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:52:05,630 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:52:05,632 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:52:05,633 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:52:05,634 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:52:05,635 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:52:05,636 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:52:05,639 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:52:05,640 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:52:05,641 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:52:05,642 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:52:05,643 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:52:05,643 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:52:05,643 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:52:05,644 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:52:05,645 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:52:05,648 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ed4a7e47-2e71-463a-bf24-939a7245428b/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-12-01 15:52:05,695 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:52:05,696 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:52:05,698 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:52:05,698 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:52:05,698 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:52:05,699 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:52:05,699 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 15:52:05,699 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 15:52:05,699 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:52:05,700 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 15:52:05,701 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 15:52:05,701 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 15:52:05,701 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-12-01 15:52:05,702 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:52:05,702 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:52:05,702 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 15:52:05,702 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:52:05,703 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:52:05,703 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 15:52:05,703 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 15:52:05,703 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:52:05,704 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:52:05,704 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 15:52:05,704 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 15:52:05,704 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 15:52:05,705 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 15:52:05,705 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 15:52:05,705 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:52:05,705 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:/tmp/vcloud-vcloud-master/worker/run_dir_ed4a7e47-2e71-463a-bf24-939a7245428b/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ed4a7e47-2e71-463a-bf24-939a7245428b/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 36155f521cfe170e9c03fd915618e68821fe0430 [2020-12-01 15:52:05,957 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:52:05,987 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:52:05,991 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:52:05,993 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:52:05,993 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:52:05,995 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ed4a7e47-2e71-463a-bf24-939a7245428b/bin/uautomizer/../../sv-benchmarks/c/termination-crafted/Piecewise.c [2020-12-01 15:52:06,100 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ed4a7e47-2e71-463a-bf24-939a7245428b/bin/uautomizer/data/19ed31914/9ce2339c60be4b4aa01f6660e91fc518/FLAG157dc550f [2020-12-01 15:52:06,631 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:52:06,633 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ed4a7e47-2e71-463a-bf24-939a7245428b/sv-benchmarks/c/termination-crafted/Piecewise.c [2020-12-01 15:52:06,644 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ed4a7e47-2e71-463a-bf24-939a7245428b/bin/uautomizer/data/19ed31914/9ce2339c60be4b4aa01f6660e91fc518/FLAG157dc550f [2020-12-01 15:52:07,028 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ed4a7e47-2e71-463a-bf24-939a7245428b/bin/uautomizer/data/19ed31914/9ce2339c60be4b4aa01f6660e91fc518 [2020-12-01 15:52:07,030 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:52:07,032 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:52:07,033 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:52:07,034 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:52:07,037 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:52:07,038 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:52:07" (1/1) ... [2020-12-01 15:52:07,040 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@110b903d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:52:07, skipping insertion in model container [2020-12-01 15:52:07,040 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:52:07" (1/1) ... [2020-12-01 15:52:07,047 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:52:07,059 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:52:07,218 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:52:07,222 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:52:07,253 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:52:07,269 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:52:07,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:52:07 WrapperNode [2020-12-01 15:52:07,271 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:52:07,273 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:52:07,273 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:52:07,273 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:52:07,282 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:52:07" (1/1) ... [2020-12-01 15:52:07,288 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:52:07" (1/1) ... [2020-12-01 15:52:07,310 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:52:07,313 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:52:07,314 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:52:07,314 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:52:07,323 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:52:07" (1/1) ... [2020-12-01 15:52:07,323 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:52:07" (1/1) ... [2020-12-01 15:52:07,325 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:52:07" (1/1) ... [2020-12-01 15:52:07,326 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:52:07" (1/1) ... [2020-12-01 15:52:07,328 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:52:07" (1/1) ... [2020-12-01 15:52:07,332 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:52:07" (1/1) ... [2020-12-01 15:52:07,337 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:52:07" (1/1) ... [2020-12-01 15:52:07,339 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:52:07,340 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:52:07,340 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:52:07,341 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:52:07,342 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:52:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ed4a7e47-2e71-463a-bf24-939a7245428b/bin/uautomizer/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 [2020-12-01 15:52:07,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:52:07,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:52:07,626 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:52:07,626 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-12-01 15:52:07,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:52:07 BoogieIcfgContainer [2020-12-01 15:52:07,628 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:52:07,630 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 15:52:07,630 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 15:52:07,634 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 15:52:07,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 03:52:07" (1/3) ... [2020-12-01 15:52:07,636 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c878038 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:52:07, skipping insertion in model container [2020-12-01 15:52:07,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:52:07" (2/3) ... [2020-12-01 15:52:07,636 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c878038 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:52:07, skipping insertion in model container [2020-12-01 15:52:07,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:52:07" (3/3) ... [2020-12-01 15:52:07,638 INFO L111 eAbstractionObserver]: Analyzing ICFG Piecewise.c [2020-12-01 15:52:07,653 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 15:52:07,656 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-12-01 15:52:07,668 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-01 15:52:07,691 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 15:52:07,691 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 15:52:07,692 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 15:52:07,692 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:52:07,692 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:52:07,692 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 15:52:07,692 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:52:07,693 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 15:52:07,706 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2020-12-01 15:52:07,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-01 15:52:07,711 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:52:07,712 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-01 15:52:07,712 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-01 15:52:07,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:52:07,719 INFO L82 PathProgramCache]: Analyzing trace with hash 963339, now seen corresponding path program 1 times [2020-12-01 15:52:07,728 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:52:07,728 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966958635] [2020-12-01 15:52:07,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:52:07,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:52:07,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:52:07,866 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966958635] [2020-12-01 15:52:07,867 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:52:07,867 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-01 15:52:07,868 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934244315] [2020-12-01 15:52:07,873 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:52:07,873 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:52:07,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:52:07,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:52:07,889 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 3 states. [2020-12-01 15:52:07,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:52:07,927 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2020-12-01 15:52:07,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:52:07,929 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-12-01 15:52:07,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:52:07,938 INFO L225 Difference]: With dead ends: 20 [2020-12-01 15:52:07,938 INFO L226 Difference]: Without dead ends: 11 [2020-12-01 15:52:07,940 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:52:07,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-12-01 15:52:07,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-12-01 15:52:07,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-12-01 15:52:07,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2020-12-01 15:52:07,972 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 4 [2020-12-01 15:52:07,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:52:07,972 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2020-12-01 15:52:07,972 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:52:07,973 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2020-12-01 15:52:07,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 15:52:07,973 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:52:07,973 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-01 15:52:07,974 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-01 15:52:07,974 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-01 15:52:07,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:52:07,975 INFO L82 PathProgramCache]: Analyzing trace with hash 29869546, now seen corresponding path program 1 times [2020-12-01 15:52:07,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:52:07,976 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427374289] [2020-12-01 15:52:07,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:52:07,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:52:07,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:52:08,000 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427374289] [2020-12-01 15:52:08,000 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:52:08,001 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-01 15:52:08,001 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251259204] [2020-12-01 15:52:08,014 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:52:08,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:52:08,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:52:08,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:52:08,016 INFO L87 Difference]: Start difference. First operand 11 states and 13 transitions. Second operand 3 states. [2020-12-01 15:52:08,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:52:08,052 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2020-12-01 15:52:08,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:52:08,053 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-12-01 15:52:08,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:52:08,054 INFO L225 Difference]: With dead ends: 11 [2020-12-01 15:52:08,054 INFO L226 Difference]: Without dead ends: 10 [2020-12-01 15:52:08,055 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:52:08,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2020-12-01 15:52:08,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2020-12-01 15:52:08,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-12-01 15:52:08,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2020-12-01 15:52:08,058 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 12 transitions. Word has length 5 [2020-12-01 15:52:08,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:52:08,059 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 12 transitions. [2020-12-01 15:52:08,059 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:52:08,059 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2020-12-01 15:52:08,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 15:52:08,059 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:52:08,060 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-01 15:52:08,060 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-01 15:52:08,060 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-01 15:52:08,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:52:08,061 INFO L82 PathProgramCache]: Analyzing trace with hash 29863556, now seen corresponding path program 1 times [2020-12-01 15:52:08,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:52:08,062 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597990068] [2020-12-01 15:52:08,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:52:08,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:52:08,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:52:08,085 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597990068] [2020-12-01 15:52:08,086 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:52:08,086 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 15:52:08,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995474828] [2020-12-01 15:52:08,087 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:52:08,087 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:52:08,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:52:08,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:52:08,088 INFO L87 Difference]: Start difference. First operand 10 states and 12 transitions. Second operand 3 states. [2020-12-01 15:52:08,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:52:08,111 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2020-12-01 15:52:08,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:52:08,112 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-12-01 15:52:08,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:52:08,112 INFO L225 Difference]: With dead ends: 11 [2020-12-01 15:52:08,113 INFO L226 Difference]: Without dead ends: 10 [2020-12-01 15:52:08,113 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:52:08,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2020-12-01 15:52:08,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2020-12-01 15:52:08,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-12-01 15:52:08,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 11 transitions. [2020-12-01 15:52:08,116 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 11 transitions. Word has length 5 [2020-12-01 15:52:08,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:52:08,117 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 11 transitions. [2020-12-01 15:52:08,117 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:52:08,117 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2020-12-01 15:52:08,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-01 15:52:08,118 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:52:08,118 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-01 15:52:08,118 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-01 15:52:08,119 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-01 15:52:08,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:52:08,119 INFO L82 PathProgramCache]: Analyzing trace with hash 925955982, now seen corresponding path program 1 times [2020-12-01 15:52:08,120 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:52:08,120 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829434021] [2020-12-01 15:52:08,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:52:08,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:52:08,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:52:08,146 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829434021] [2020-12-01 15:52:08,147 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:52:08,147 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 15:52:08,147 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054354188] [2020-12-01 15:52:08,148 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:52:08,148 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:52:08,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:52:08,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:52:08,150 INFO L87 Difference]: Start difference. First operand 9 states and 11 transitions. Second operand 3 states. [2020-12-01 15:52:08,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:52:08,171 INFO L93 Difference]: Finished difference Result 10 states and 12 transitions. [2020-12-01 15:52:08,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:52:08,171 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-12-01 15:52:08,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:52:08,172 INFO L225 Difference]: With dead ends: 10 [2020-12-01 15:52:08,172 INFO L226 Difference]: Without dead ends: 0 [2020-12-01 15:52:08,173 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:52:08,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-01 15:52:08,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-01 15:52:08,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-01 15:52:08,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-01 15:52:08,174 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2020-12-01 15:52:08,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:52:08,174 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:52:08,174 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:52:08,175 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-01 15:52:08,175 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 15:52:08,175 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-01 15:52:08,177 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-01 15:52:08,230 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2020-12-01 15:52:08,230 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-01 15:52:08,230 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2020-12-01 15:52:08,230 INFO L258 CegarLoopResult]: At program point L31(lines 17 32) the Hoare annotation is: (<= ULTIMATE.start_main_~q~0 2147483647) [2020-12-01 15:52:08,230 INFO L262 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-12-01 15:52:08,231 INFO L262 CegarLoopResult]: For program point L27-1(line 27) no Hoare annotation was computed. [2020-12-01 15:52:08,231 INFO L262 CegarLoopResult]: For program point L23(lines 23 29) no Hoare annotation was computed. [2020-12-01 15:52:08,231 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2020-12-01 15:52:08,231 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2020-12-01 15:52:08,231 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-01 15:52:08,231 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-01 15:52:08,231 INFO L262 CegarLoopResult]: For program point L26(lines 26 29) no Hoare annotation was computed. [2020-12-01 15:52:08,232 INFO L262 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-12-01 15:52:08,232 INFO L258 CegarLoopResult]: At program point L26-2(lines 22 30) the Hoare annotation is: (and (<= ULTIMATE.start_main_~p~0 2147483647) (<= ULTIMATE.start_main_~q~0 2147483647)) [2020-12-01 15:52:08,232 INFO L262 CegarLoopResult]: For program point L24-1(line 24) no Hoare annotation was computed. [2020-12-01 15:52:08,232 INFO L262 CegarLoopResult]: For program point L22-2(lines 22 30) no Hoare annotation was computed. [2020-12-01 15:52:08,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 03:52:08 BoogieIcfgContainer [2020-12-01 15:52:08,247 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 15:52:08,248 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:52:08,248 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:52:08,248 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:52:08,249 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:52:07" (3/4) ... [2020-12-01 15:52:08,252 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 15:52:08,262 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-12-01 15:52:08,262 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-01 15:52:08,299 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ed4a7e47-2e71-463a-bf24-939a7245428b/bin/uautomizer/witness.graphml [2020-12-01 15:52:08,300 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:52:08,302 INFO L168 Benchmark]: Toolchain (without parser) took 1269.00 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 54.6 MB in the beginning and 34.2 MB in the end (delta: 20.3 MB). Peak memory consumption was 36.9 MB. Max. memory is 16.1 GB. [2020-12-01 15:52:08,302 INFO L168 Benchmark]: CDTParser took 0.60 ms. Allocated memory is still 86.0 MB. Free memory was 45.3 MB in the beginning and 45.3 MB in the end (delta: 31.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:52:08,303 INFO L168 Benchmark]: CACSL2BoogieTranslator took 238.62 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 54.6 MB in the beginning and 84.4 MB in the end (delta: -29.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 15:52:08,304 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.84 ms. Allocated memory is still 104.9 MB. Free memory was 84.4 MB in the beginning and 82.9 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:52:08,304 INFO L168 Benchmark]: Boogie Preprocessor took 25.82 ms. Allocated memory is still 104.9 MB. Free memory was 82.9 MB in the beginning and 82.0 MB in the end (delta: 900.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:52:08,305 INFO L168 Benchmark]: RCFGBuilder took 288.29 ms. Allocated memory is still 104.9 MB. Free memory was 82.0 MB in the beginning and 72.5 MB in the end (delta: 9.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 15:52:08,306 INFO L168 Benchmark]: TraceAbstraction took 617.40 ms. Allocated memory is still 104.9 MB. Free memory was 72.0 MB in the beginning and 36.2 MB in the end (delta: 35.7 MB). Peak memory consumption was 35.7 MB. Max. memory is 16.1 GB. [2020-12-01 15:52:08,307 INFO L168 Benchmark]: Witness Printer took 51.76 ms. Allocated memory is still 104.9 MB. Free memory was 36.2 MB in the beginning and 34.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:52:08,310 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.60 ms. Allocated memory is still 86.0 MB. Free memory was 45.3 MB in the beginning and 45.3 MB in the end (delta: 31.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 238.62 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 54.6 MB in the beginning and 84.4 MB in the end (delta: -29.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 38.84 ms. Allocated memory is still 104.9 MB. Free memory was 84.4 MB in the beginning and 82.9 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 25.82 ms. Allocated memory is still 104.9 MB. Free memory was 82.9 MB in the beginning and 82.0 MB in the end (delta: 900.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 288.29 ms. Allocated memory is still 104.9 MB. Free memory was 82.0 MB in the beginning and 72.5 MB in the end (delta: 9.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 617.40 ms. Allocated memory is still 104.9 MB. Free memory was 72.0 MB in the beginning and 36.2 MB in the end (delta: 35.7 MB). Peak memory consumption was 35.7 MB. Max. memory is 16.1 GB. * Witness Printer took 51.76 ms. Allocated memory is still 104.9 MB. Free memory was 36.2 MB in the beginning and 34.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: q <= 2147483647 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: p <= 2147483647 && q <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.4s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 21 SDtfs, 26 SDslu, 0 SDs, 0 SdLazy, 37 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred 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, 4 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 10 HoareAnnotationTreeSize, 2 FomulaSimplifications, 33 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 180 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 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...