./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-TACAS2014-Ex1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f029302-d656-4040-a73e-5b16452da1d9/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f029302-d656-4040-a73e-5b16452da1d9/bin/uautomizer-Z5i5R5N3CC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f029302-d656-4040-a73e-5b16452da1d9/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f029302-d656-4040-a73e-5b16452da1d9/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-TACAS2014-Ex1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f029302-d656-4040-a73e-5b16452da1d9/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f029302-d656-4040-a73e-5b16452da1d9/bin/uautomizer-Z5i5R5N3CC --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 ebb74e337af9534aacfcb2a7a413bdbed21e04b2 ............................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 00:26:54,539 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:26:54,542 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:26:54,582 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:26:54,600 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:26:54,602 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:26:54,604 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:26:54,606 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:26:54,608 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:26:54,609 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:26:54,611 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:26:54,612 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:26:54,618 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:26:54,624 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:26:54,626 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:26:54,629 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:26:54,631 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:26:54,634 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:26:54,640 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:26:54,642 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:26:54,644 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:26:54,648 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:26:54,651 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:26:54,652 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:26:54,662 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:26:54,663 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:26:54,663 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:26:54,668 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:26:54,669 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:26:54,670 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:26:54,671 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:26:54,671 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:26:54,672 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:26:54,673 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:26:54,675 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:26:54,675 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:26:54,676 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:26:54,676 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:26:54,677 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:26:54,678 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:26:54,682 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:26:54,687 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f029302-d656-4040-a73e-5b16452da1d9/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Overflow-64bit-Automizer_Default.epf [2021-10-11 00:26:54,723 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:26:54,723 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:26:54,724 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:26:54,725 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:26:54,725 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:26:54,725 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:26:54,725 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 00:26:54,725 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:26:54,726 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:26:54,726 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:26:54,726 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:26:54,726 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:26:54,726 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-11 00:26:54,727 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:26:54,727 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:26:54,727 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:26:54,727 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:26:54,728 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:26:54,728 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:26:54,728 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:26:54,728 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:26:54,728 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:26:54,729 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:26:54,729 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:26:54,729 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:26:54,729 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:26:54,729 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:26:54,730 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_worker_vcloud-master_on_vcloud-master/run_dir_1f029302-d656-4040-a73e-5b16452da1d9/bin/uautomizer-Z5i5R5N3CC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f029302-d656-4040-a73e-5b16452da1d9/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ebb74e337af9534aacfcb2a7a413bdbed21e04b2 [2021-10-11 00:26:54,982 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:26:55,012 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:26:55,016 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:26:55,018 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:26:55,019 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:26:55,020 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f029302-d656-4040-a73e-5b16452da1d9/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-TACAS2014-Ex1.c [2021-10-11 00:26:55,104 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f029302-d656-4040-a73e-5b16452da1d9/bin/uautomizer-Z5i5R5N3CC/data/e03900577/ff43630a37074c50bc930fae80e05ac9/FLAG40195a2ce [2021-10-11 00:26:55,661 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:26:55,661 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f029302-d656-4040-a73e-5b16452da1d9/sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-TACAS2014-Ex1.c [2021-10-11 00:26:55,667 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f029302-d656-4040-a73e-5b16452da1d9/bin/uautomizer-Z5i5R5N3CC/data/e03900577/ff43630a37074c50bc930fae80e05ac9/FLAG40195a2ce [2021-10-11 00:26:56,024 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f029302-d656-4040-a73e-5b16452da1d9/bin/uautomizer-Z5i5R5N3CC/data/e03900577/ff43630a37074c50bc930fae80e05ac9 [2021-10-11 00:26:56,029 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:26:56,030 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:26:56,033 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:26:56,033 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:26:56,037 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:26:56,038 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:26:56" (1/1) ... [2021-10-11 00:26:56,040 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f6aa712 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:26:56, skipping insertion in model container [2021-10-11 00:26:56,040 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:26:56" (1/1) ... [2021-10-11 00:26:56,048 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:26:56,061 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:26:56,290 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:26:56,295 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:26:56,318 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:26:56,341 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:26:56,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:26:56 WrapperNode [2021-10-11 00:26:56,342 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:26:56,343 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:26:56,344 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:26:56,344 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:26:56,352 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:26:56" (1/1) ... [2021-10-11 00:26:56,357 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:26:56" (1/1) ... [2021-10-11 00:26:56,376 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:26:56,377 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:26:56,377 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:26:56,377 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:26:56,386 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:26:56" (1/1) ... [2021-10-11 00:26:56,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:26:56" (1/1) ... [2021-10-11 00:26:56,387 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:26:56" (1/1) ... [2021-10-11 00:26:56,388 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:26:56" (1/1) ... [2021-10-11 00:26:56,390 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:26:56" (1/1) ... [2021-10-11 00:26:56,394 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:26:56" (1/1) ... [2021-10-11 00:26:56,395 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:26:56" (1/1) ... [2021-10-11 00:26:56,396 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:26:56,397 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:26:56,398 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:26:56,398 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:26:56,407 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:26:56" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f029302-d656-4040-a73e-5b16452da1d9/bin/uautomizer-Z5i5R5N3CC/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 [2021-10-11 00:26:56,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:26:56,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:26:56,692 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:26:56,692 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-11 00:26:56,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:26:56 BoogieIcfgContainer [2021-10-11 00:26:56,694 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:26:56,696 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:26:56,696 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:26:56,699 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:26:56,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:26:56" (1/3) ... [2021-10-11 00:26:56,701 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@314c9881 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:26:56, skipping insertion in model container [2021-10-11 00:26:56,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:26:56" (2/3) ... [2021-10-11 00:26:56,702 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@314c9881 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:26:56, skipping insertion in model container [2021-10-11 00:26:56,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:26:56" (3/3) ... [2021-10-11 00:26:56,703 INFO L111 eAbstractionObserver]: Analyzing ICFG LeikeHeizmann-TACAS2014-Ex1.c [2021-10-11 00:26:56,718 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:26:56,722 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2021-10-11 00:26:56,733 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-10-11 00:26:56,758 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:26:56,758 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:26:56,759 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:26:56,759 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:26:56,759 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:26:56,759 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:26:56,759 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:26:56,760 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:26:56,775 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2021-10-11 00:26:56,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-11 00:26:56,780 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:26:56,781 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-11 00:26:56,782 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 00:26:56,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:26:56,788 INFO L82 PathProgramCache]: Analyzing trace with hash 963659, now seen corresponding path program 1 times [2021-10-11 00:26:56,798 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:26:56,799 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054577687] [2021-10-11 00:26:56,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:26:56,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:26:56,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:26:56,951 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054577687] [2021-10-11 00:26:56,951 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:26:56,952 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:26:56,953 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075545345] [2021-10-11 00:26:56,957 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 00:26:56,957 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:26:56,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:26:56,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:26:56,993 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 4 states. [2021-10-11 00:26:57,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:26:57,216 INFO L93 Difference]: Finished difference Result 45 states and 52 transitions. [2021-10-11 00:26:57,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 00:26:57,219 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2021-10-11 00:26:57,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:26:57,228 INFO L225 Difference]: With dead ends: 45 [2021-10-11 00:26:57,239 INFO L226 Difference]: Without dead ends: 31 [2021-10-11 00:26:57,242 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:26:57,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-10-11 00:26:57,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 17. [2021-10-11 00:26:57,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-10-11 00:26:57,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2021-10-11 00:26:57,297 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 4 [2021-10-11 00:26:57,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:26:57,298 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2021-10-11 00:26:57,299 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 00:26:57,299 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2021-10-11 00:26:57,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-11 00:26:57,300 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:26:57,300 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-11 00:26:57,302 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 00:26:57,303 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 00:26:57,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:26:57,306 INFO L82 PathProgramCache]: Analyzing trace with hash 963339, now seen corresponding path program 1 times [2021-10-11 00:26:57,307 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:26:57,307 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701435589] [2021-10-11 00:26:57,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:26:57,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:26:57,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:26:57,385 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701435589] [2021-10-11 00:26:57,386 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:26:57,386 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:26:57,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323030394] [2021-10-11 00:26:57,387 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 00:26:57,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:26:57,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:26:57,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:26:57,389 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 4 states. [2021-10-11 00:26:57,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:26:57,479 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2021-10-11 00:26:57,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 00:26:57,479 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2021-10-11 00:26:57,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:26:57,480 INFO L225 Difference]: With dead ends: 31 [2021-10-11 00:26:57,481 INFO L226 Difference]: Without dead ends: 29 [2021-10-11 00:26:57,481 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:26:57,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-10-11 00:26:57,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 15. [2021-10-11 00:26:57,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-10-11 00:26:57,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2021-10-11 00:26:57,487 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 4 [2021-10-11 00:26:57,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:26:57,487 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2021-10-11 00:26:57,487 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 00:26:57,487 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2021-10-11 00:26:57,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-11 00:26:57,488 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:26:57,488 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-11 00:26:57,488 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 00:26:57,489 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 00:26:57,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:26:57,489 INFO L82 PathProgramCache]: Analyzing trace with hash 29873486, now seen corresponding path program 1 times [2021-10-11 00:26:57,490 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:26:57,490 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531917115] [2021-10-11 00:26:57,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:26:57,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:26:57,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:26:57,520 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531917115] [2021-10-11 00:26:57,521 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:26:57,521 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:26:57,521 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886763831] [2021-10-11 00:26:57,521 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 00:26:57,522 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:26:57,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:26:57,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:26:57,523 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand 4 states. [2021-10-11 00:26:57,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:26:57,570 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2021-10-11 00:26:57,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 00:26:57,571 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2021-10-11 00:26:57,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:26:57,572 INFO L225 Difference]: With dead ends: 15 [2021-10-11 00:26:57,572 INFO L226 Difference]: Without dead ends: 13 [2021-10-11 00:26:57,573 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:26:57,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-10-11 00:26:57,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-10-11 00:26:57,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-10-11 00:26:57,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2021-10-11 00:26:57,576 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 5 [2021-10-11 00:26:57,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:26:57,576 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2021-10-11 00:26:57,576 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 00:26:57,577 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2021-10-11 00:26:57,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-11 00:26:57,577 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:26:57,577 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-11 00:26:57,577 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 00:26:57,578 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 00:26:57,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:26:57,578 INFO L82 PathProgramCache]: Analyzing trace with hash 29863556, now seen corresponding path program 1 times [2021-10-11 00:26:57,579 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:26:57,579 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161282696] [2021-10-11 00:26:57,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:26:57,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:26:57,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:26:57,605 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161282696] [2021-10-11 00:26:57,606 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:26:57,606 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:26:57,606 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549437847] [2021-10-11 00:26:57,606 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 00:26:57,607 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:26:57,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:26:57,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:26:57,608 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand 4 states. [2021-10-11 00:26:57,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:26:57,637 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2021-10-11 00:26:57,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 00:26:57,637 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2021-10-11 00:26:57,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:26:57,638 INFO L225 Difference]: With dead ends: 13 [2021-10-11 00:26:57,638 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 00:26:57,638 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:26:57,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 00:26:57,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 00:26:57,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 00:26:57,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 00:26:57,639 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2021-10-11 00:26:57,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:26:57,639 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:26:57,640 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 00:26:57,640 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 00:26:57,640 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 00:26:57,640 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-11 00:26:57,642 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 00:26:57,692 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2021-10-11 00:26:57,692 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 00:26:57,692 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2021-10-11 00:26:57,692 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2021-10-11 00:26:57,693 INFO L262 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2021-10-11 00:26:57,693 INFO L262 CegarLoopResult]: For program point L21-1(line 21) no Hoare annotation was computed. [2021-10-11 00:26:57,693 INFO L262 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2021-10-11 00:26:57,693 INFO L262 CegarLoopResult]: For program point L21-2(line 21) no Hoare annotation was computed. [2021-10-11 00:26:57,693 INFO L262 CegarLoopResult]: For program point L19-1(line 19) no Hoare annotation was computed. [2021-10-11 00:26:57,693 INFO L262 CegarLoopResult]: For program point L21-3(line 21) no Hoare annotation was computed. [2021-10-11 00:26:57,693 INFO L262 CegarLoopResult]: For program point L19-2(line 19) no Hoare annotation was computed. [2021-10-11 00:26:57,694 INFO L262 CegarLoopResult]: For program point L19-3(line 19) no Hoare annotation was computed. [2021-10-11 00:26:57,694 INFO L262 CegarLoopResult]: For program point L17-2(lines 17 23) no Hoare annotation was computed. [2021-10-11 00:26:57,694 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2021-10-11 00:26:57,694 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2021-10-11 00:26:57,694 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2021-10-11 00:26:57,694 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 00:26:57,694 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2021-10-11 00:26:57,695 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-11 00:26:57,695 INFO L258 CegarLoopResult]: At program point L24(lines 13 25) the Hoare annotation is: (<= ULTIMATE.start_main_~q~0 2147483647) [2021-10-11 00:26:57,695 INFO L262 CegarLoopResult]: For program point L18(lines 18 22) no Hoare annotation was computed. [2021-10-11 00:26:57,695 INFO L258 CegarLoopResult]: At program point L18-2(lines 17 23) the Hoare annotation is: (and (<= 0 (+ ULTIMATE.start_main_~y~0 2147483648)) (<= ULTIMATE.start_main_~q~0 2147483647) (<= ULTIMATE.start_main_~y~0 2147483647)) [2021-10-11 00:26:57,696 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2021-10-11 00:26:57,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:26:57 BoogieIcfgContainer [2021-10-11 00:26:57,712 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:26:57,712 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:26:57,712 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:26:57,713 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:26:57,713 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:26:56" (3/4) ... [2021-10-11 00:26:57,717 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 00:26:57,727 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-10-11 00:26:57,727 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-11 00:26:57,783 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f029302-d656-4040-a73e-5b16452da1d9/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:26:57,783 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:26:57,785 INFO L168 Benchmark]: Toolchain (without parser) took 1753.86 ms. Allocated memory was 98.6 MB in the beginning and 121.6 MB in the end (delta: 23.1 MB). Free memory was 72.5 MB in the beginning and 96.3 MB in the end (delta: -23.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:26:57,786 INFO L168 Benchmark]: CDTParser took 0.70 ms. Allocated memory is still 98.6 MB. Free memory was 57.5 MB in the beginning and 57.4 MB in the end (delta: 76.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:26:57,792 INFO L168 Benchmark]: CACSL2BoogieTranslator took 309.23 ms. Allocated memory is still 98.6 MB. Free memory was 72.5 MB in the beginning and 77.5 MB in the end (delta: -4.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:26:57,793 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.79 ms. Allocated memory is still 98.6 MB. Free memory was 77.5 MB in the beginning and 76.0 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:26:57,793 INFO L168 Benchmark]: Boogie Preprocessor took 19.73 ms. Allocated memory is still 98.6 MB. Free memory was 76.0 MB in the beginning and 75.2 MB in the end (delta: 800.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:26:57,795 INFO L168 Benchmark]: RCFGBuilder took 296.67 ms. Allocated memory is still 98.6 MB. Free memory was 75.2 MB in the beginning and 64.7 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:26:57,800 INFO L168 Benchmark]: TraceAbstraction took 1016.19 ms. Allocated memory was 98.6 MB in the beginning and 121.6 MB in the end (delta: 23.1 MB). Free memory was 64.2 MB in the beginning and 98.4 MB in the end (delta: -34.1 MB). Peak memory consumption was 29.0 MB. Max. memory is 16.1 GB. [2021-10-11 00:26:57,800 INFO L168 Benchmark]: Witness Printer took 71.10 ms. Allocated memory is still 121.6 MB. Free memory was 98.4 MB in the beginning and 96.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:26:57,805 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.70 ms. Allocated memory is still 98.6 MB. Free memory was 57.5 MB in the beginning and 57.4 MB in the end (delta: 76.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 309.23 ms. Allocated memory is still 98.6 MB. Free memory was 72.5 MB in the beginning and 77.5 MB in the end (delta: -4.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 32.79 ms. Allocated memory is still 98.6 MB. Free memory was 77.5 MB in the beginning and 76.0 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.73 ms. Allocated memory is still 98.6 MB. Free memory was 76.0 MB in the beginning and 75.2 MB in the end (delta: 800.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 296.67 ms. Allocated memory is still 98.6 MB. Free memory was 75.2 MB in the beginning and 64.7 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1016.19 ms. Allocated memory was 98.6 MB in the beginning and 121.6 MB in the end (delta: 23.1 MB). Free memory was 64.2 MB in the beginning and 98.4 MB in the end (delta: -34.1 MB). Peak memory consumption was 29.0 MB. Max. memory is 16.1 GB. * Witness Printer took 71.10 ms. Allocated memory is still 121.6 MB. Free memory was 98.4 MB in the beginning and 96.3 MB in the end (delta: 2.1 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: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (0 <= y + 2147483648 && q <= 2147483647) && y <= 2147483647 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: q <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 23 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.8s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 16 SDtfs, 104 SDslu, 3 SDs, 0 SdLazy, 115 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred 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, 28 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 15 HoareAnnotationTreeSize, 2 FomulaSimplifications, 20 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 16 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 230 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...