./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-industry-pattern/mod3_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_2f5d0eef-2db8-433e-a185-fe4b642136c6/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_2f5d0eef-2db8-433e-a185-fe4b642136c6/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_2f5d0eef-2db8-433e-a185-fe4b642136c6/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_2f5d0eef-2db8-433e-a185-fe4b642136c6/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-industry-pattern/mod3_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_2f5d0eef-2db8-433e-a185-fe4b642136c6/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_2f5d0eef-2db8-433e-a185-fe4b642136c6/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 950698bc17a751834ff482c414f89d89b98af415 ...................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 10:33:28,522 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 10:33:28,524 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 10:33:28,532 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 10:33:28,532 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 10:33:28,533 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 10:33:28,534 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 10:33:28,535 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 10:33:28,536 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 10:33:28,536 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 10:33:28,537 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 10:33:28,537 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 10:33:28,538 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 10:33:28,539 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 10:33:28,539 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 10:33:28,540 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 10:33:28,540 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 10:33:28,542 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 10:33:28,543 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 10:33:28,544 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 10:33:28,545 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 10:33:28,546 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 10:33:28,547 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 10:33:28,547 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 10:33:28,547 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 10:33:28,548 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 10:33:28,549 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 10:33:28,549 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 10:33:28,550 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 10:33:28,551 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 10:33:28,551 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 10:33:28,551 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 10:33:28,551 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 10:33:28,551 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 10:33:28,552 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 10:33:28,553 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 10:33:28,553 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_2f5d0eef-2db8-433e-a185-fe4b642136c6/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 10:33:28,563 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 10:33:28,563 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 10:33:28,563 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 10:33:28,564 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 10:33:28,564 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 10:33:28,564 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 10:33:28,564 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 10:33:28,565 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 10:33:28,565 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 10:33:28,565 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 10:33:28,565 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 10:33:28,565 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 10:33:28,565 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 10:33:28,565 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 10:33:28,566 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 10:33:28,566 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 10:33:28,566 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 10:33:28,566 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 10:33:28,566 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 10:33:28,566 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 10:33:28,566 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 10:33:28,567 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 10:33:28,567 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 10:33:28,567 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 10:33:28,567 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 10:33:28,567 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 10:33:28,567 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 10:33:28,567 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 10:33:28,567 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 10:33:28,568 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 10:33:28,568 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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/working_dir_2f5d0eef-2db8-433e-a185-fe4b642136c6/bin-2019/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 ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 950698bc17a751834ff482c414f89d89b98af415 [2018-11-28 10:33:28,591 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 10:33:28,600 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 10:33:28,602 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 10:33:28,604 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 10:33:28,604 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 10:33:28,605 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_2f5d0eef-2db8-433e-a185-fe4b642136c6/bin-2019/uautomizer/../../sv-benchmarks/c/loop-industry-pattern/mod3_true-unreach-call.c [2018-11-28 10:33:28,643 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2f5d0eef-2db8-433e-a185-fe4b642136c6/bin-2019/uautomizer/data/af5889565/1942b76eeb6841cdb2267fde74977ba2/FLAG46d3942cf [2018-11-28 10:33:28,941 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 10:33:28,942 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_2f5d0eef-2db8-433e-a185-fe4b642136c6/sv-benchmarks/c/loop-industry-pattern/mod3_true-unreach-call.c [2018-11-28 10:33:28,946 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2f5d0eef-2db8-433e-a185-fe4b642136c6/bin-2019/uautomizer/data/af5889565/1942b76eeb6841cdb2267fde74977ba2/FLAG46d3942cf [2018-11-28 10:33:28,956 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_2f5d0eef-2db8-433e-a185-fe4b642136c6/bin-2019/uautomizer/data/af5889565/1942b76eeb6841cdb2267fde74977ba2 [2018-11-28 10:33:28,958 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 10:33:28,959 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 10:33:28,960 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 10:33:28,960 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 10:33:28,962 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 10:33:28,962 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 10:33:28" (1/1) ... [2018-11-28 10:33:28,964 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23c1b638 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:28, skipping insertion in model container [2018-11-28 10:33:28,964 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 10:33:28" (1/1) ... [2018-11-28 10:33:28,968 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 10:33:28,978 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 10:33:29,076 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 10:33:29,079 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 10:33:29,090 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 10:33:29,098 INFO L195 MainTranslator]: Completed translation [2018-11-28 10:33:29,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:29 WrapperNode [2018-11-28 10:33:29,099 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 10:33:29,099 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 10:33:29,099 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 10:33:29,099 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 10:33:29,104 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:29" (1/1) ... [2018-11-28 10:33:29,107 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:29" (1/1) ... [2018-11-28 10:33:29,111 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 10:33:29,111 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 10:33:29,111 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 10:33:29,111 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 10:33:29,117 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:29" (1/1) ... [2018-11-28 10:33:29,117 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:29" (1/1) ... [2018-11-28 10:33:29,117 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:29" (1/1) ... [2018-11-28 10:33:29,117 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:29" (1/1) ... [2018-11-28 10:33:29,120 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:29" (1/1) ... [2018-11-28 10:33:29,155 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:29" (1/1) ... [2018-11-28 10:33:29,156 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:29" (1/1) ... [2018-11-28 10:33:29,157 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 10:33:29,158 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 10:33:29,158 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 10:33:29,158 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 10:33:29,158 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2f5d0eef-2db8-433e-a185-fe4b642136c6/bin-2019/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 [2018-11-28 10:33:29,197 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 10:33:29,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 10:33:29,197 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 10:33:29,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 10:33:29,197 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 10:33:29,197 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 10:33:29,197 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-28 10:33:29,197 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-28 10:33:29,315 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 10:33:29,315 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-28 10:33:29,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:33:29 BoogieIcfgContainer [2018-11-28 10:33:29,316 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 10:33:29,316 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 10:33:29,316 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 10:33:29,319 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 10:33:29,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 10:33:28" (1/3) ... [2018-11-28 10:33:29,319 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ef0b901 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 10:33:29, skipping insertion in model container [2018-11-28 10:33:29,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:29" (2/3) ... [2018-11-28 10:33:29,320 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ef0b901 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 10:33:29, skipping insertion in model container [2018-11-28 10:33:29,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:33:29" (3/3) ... [2018-11-28 10:33:29,321 INFO L112 eAbstractionObserver]: Analyzing ICFG mod3_true-unreach-call.c [2018-11-28 10:33:29,329 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 10:33:29,335 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 10:33:29,344 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 10:33:29,362 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 10:33:29,363 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 10:33:29,363 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 10:33:29,363 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 10:33:29,363 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 10:33:29,363 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 10:33:29,363 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 10:33:29,363 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 10:33:29,363 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 10:33:29,375 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2018-11-28 10:33:29,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-28 10:33:29,378 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 10:33:29,379 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 10:33:29,380 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 10:33:29,383 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:33:29,384 INFO L82 PathProgramCache]: Analyzing trace with hash 271538127, now seen corresponding path program 1 times [2018-11-28 10:33:29,385 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 10:33:29,385 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 10:33:29,412 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:33:29,412 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:33:29,412 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:33:29,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 10:33:29,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 10:33:29,446 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 10:33:29,446 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 10:33:29,449 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 10:33:29,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 10:33:29,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 10:33:29,458 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 2 states. [2018-11-28 10:33:29,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 10:33:29,473 INFO L93 Difference]: Finished difference Result 36 states and 44 transitions. [2018-11-28 10:33:29,473 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 10:33:29,474 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2018-11-28 10:33:29,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 10:33:29,481 INFO L225 Difference]: With dead ends: 36 [2018-11-28 10:33:29,482 INFO L226 Difference]: Without dead ends: 16 [2018-11-28 10:33:29,484 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 10:33:29,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-11-28 10:33:29,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-11-28 10:33:29,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-11-28 10:33:29,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2018-11-28 10:33:29,507 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 11 [2018-11-28 10:33:29,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 10:33:29,507 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2018-11-28 10:33:29,507 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 10:33:29,507 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2018-11-28 10:33:29,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-28 10:33:29,508 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 10:33:29,508 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 10:33:29,508 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 10:33:29,508 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:33:29,509 INFO L82 PathProgramCache]: Analyzing trace with hash 183026044, now seen corresponding path program 1 times [2018-11-28 10:33:29,509 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 10:33:29,509 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 10:33:29,509 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:33:29,510 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:33:29,510 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:33:29,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 10:33:29,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 10:33:29,582 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 10:33:29,583 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 10:33:29,584 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 10:33:29,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 10:33:29,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 10:33:29,584 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand 3 states. [2018-11-28 10:33:29,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 10:33:29,609 INFO L93 Difference]: Finished difference Result 27 states and 33 transitions. [2018-11-28 10:33:29,609 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 10:33:29,609 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2018-11-28 10:33:29,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 10:33:29,610 INFO L225 Difference]: With dead ends: 27 [2018-11-28 10:33:29,610 INFO L226 Difference]: Without dead ends: 21 [2018-11-28 10:33:29,610 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 10:33:29,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-11-28 10:33:29,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 18. [2018-11-28 10:33:29,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-28 10:33:29,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2018-11-28 10:33:29,614 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 12 [2018-11-28 10:33:29,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 10:33:29,615 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2018-11-28 10:33:29,615 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 10:33:29,615 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2018-11-28 10:33:29,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-28 10:33:29,615 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 10:33:29,615 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 10:33:29,615 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 10:33:29,616 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:33:29,616 INFO L82 PathProgramCache]: Analyzing trace with hash -1587594336, now seen corresponding path program 1 times [2018-11-28 10:33:29,616 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 10:33:29,616 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 10:33:29,617 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:33:29,617 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:33:29,617 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:33:29,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 10:33:29,766 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 10:33:29,766 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 10:33:29,767 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 10:33:29,767 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 10:33:29,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 10:33:29,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 10:33:29,767 INFO L87 Difference]: Start difference. First operand 18 states and 21 transitions. Second operand 5 states. [2018-11-28 10:33:30,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 10:33:30,369 INFO L93 Difference]: Finished difference Result 32 states and 42 transitions. [2018-11-28 10:33:30,370 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 10:33:30,370 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2018-11-28 10:33:30,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 10:33:30,371 INFO L225 Difference]: With dead ends: 32 [2018-11-28 10:33:30,371 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 10:33:30,371 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-28 10:33:30,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 10:33:30,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 10:33:30,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 10:33:30,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 10:33:30,372 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2018-11-28 10:33:30,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 10:33:30,372 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 10:33:30,372 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 10:33:30,372 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 10:33:30,372 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 10:33:30,376 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 10:33:30,415 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-28 10:33:30,415 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 10:33:30,415 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 10:33:30,415 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 10:33:30,415 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 10:33:30,415 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 10:33:30,415 INFO L444 ceAbstractionStarter]: At program point L31(line 31) the Hoare annotation is: (<= main_~x~0 (let ((.cse0 (div main_~x~0 4294967296))) (+ (* 4294967296 .cse0) (* 3 (div (+ main_~x~0 (* (- 4294967296) .cse0)) 3))))) [2018-11-28 10:33:30,415 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 12 33) no Hoare annotation was computed. [2018-11-28 10:33:30,416 INFO L448 ceAbstractionStarter]: For program point L23(lines 23 26) no Hoare annotation was computed. [2018-11-28 10:33:30,416 INFO L444 ceAbstractionStarter]: At program point L23-2(lines 16 29) the Hoare annotation is: (or (<= main_~x~0 (let ((.cse0 (div main_~x~0 4294967296))) (+ (* 4294967296 .cse0) (* 3 (div (+ main_~x~0 (* (- 4294967296) .cse0)) 3))))) (and (<= (div main_~y~0 4294967296) 0) (<= 1 main_~y~0))) [2018-11-28 10:33:30,416 INFO L448 ceAbstractionStarter]: For program point L17(lines 17 28) no Hoare annotation was computed. [2018-11-28 10:33:30,416 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 12 33) no Hoare annotation was computed. [2018-11-28 10:33:30,416 INFO L448 ceAbstractionStarter]: For program point L30(lines 30 31) no Hoare annotation was computed. [2018-11-28 10:33:30,416 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 12 33) the Hoare annotation is: true [2018-11-28 10:33:30,416 INFO L448 ceAbstractionStarter]: For program point L20(lines 20 27) no Hoare annotation was computed. [2018-11-28 10:33:30,417 INFO L448 ceAbstractionStarter]: For program point L16-1(lines 16 29) no Hoare annotation was computed. [2018-11-28 10:33:30,417 INFO L448 ceAbstractionStarter]: For program point L16-3(lines 12 33) no Hoare annotation was computed. [2018-11-28 10:33:30,417 INFO L451 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 6 10) the Hoare annotation is: true [2018-11-28 10:33:30,417 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 6 10) no Hoare annotation was computed. [2018-11-28 10:33:30,417 INFO L448 ceAbstractionStarter]: For program point L8(line 8) no Hoare annotation was computed. [2018-11-28 10:33:30,417 INFO L448 ceAbstractionStarter]: For program point L7(lines 7 8) no Hoare annotation was computed. [2018-11-28 10:33:30,417 INFO L448 ceAbstractionStarter]: For program point L7-2(lines 6 10) no Hoare annotation was computed. [2018-11-28 10:33:30,417 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2018-11-28 10:33:30,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 10:33:30 BoogieIcfgContainer [2018-11-28 10:33:30,430 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 10:33:30,430 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 10:33:30,430 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 10:33:30,430 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 10:33:30,431 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:33:29" (3/4) ... [2018-11-28 10:33:30,434 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 10:33:30,439 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 10:33:30,440 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 10:33:30,440 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-28 10:33:30,443 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-28 10:33:30,443 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-28 10:33:30,443 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 10:33:30,479 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_2f5d0eef-2db8-433e-a185-fe4b642136c6/bin-2019/uautomizer/witness.graphml [2018-11-28 10:33:30,479 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 10:33:30,480 INFO L168 Benchmark]: Toolchain (without parser) took 1521.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 957.6 MB in the beginning and 1.1 GB in the end (delta: -121.2 MB). Peak memory consumption was 30.3 MB. Max. memory is 11.5 GB. [2018-11-28 10:33:30,481 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 10:33:30,482 INFO L168 Benchmark]: CACSL2BoogieTranslator took 139.41 ms. Allocated memory is still 1.0 GB. Free memory was 957.6 MB in the beginning and 946.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 10:33:30,482 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.64 ms. Allocated memory is still 1.0 GB. Free memory was 946.9 MB in the beginning and 941.5 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-28 10:33:30,482 INFO L168 Benchmark]: Boogie Preprocessor took 46.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 941.5 MB in the beginning and 1.2 GB in the end (delta: -208.7 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. [2018-11-28 10:33:30,483 INFO L168 Benchmark]: RCFGBuilder took 158.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 11.5 GB. [2018-11-28 10:33:30,483 INFO L168 Benchmark]: TraceAbstraction took 1113.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 48.6 MB). Peak memory consumption was 48.6 MB. Max. memory is 11.5 GB. [2018-11-28 10:33:30,483 INFO L168 Benchmark]: Witness Printer took 49.52 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-28 10:33:30,485 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 139.41 ms. Allocated memory is still 1.0 GB. Free memory was 957.6 MB in the beginning and 946.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 11.64 ms. Allocated memory is still 1.0 GB. Free memory was 946.9 MB in the beginning and 941.5 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 46.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 941.5 MB in the beginning and 1.2 GB in the end (delta: -208.7 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 158.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1113.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 48.6 MB). Peak memory consumption was 48.6 MB. Max. memory is 11.5 GB. * Witness Printer took 49.52 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: x <= 4294967296 * (x / 4294967296) + 3 * ((x + -4294967296 * (x / 4294967296)) / 3) || (y / 4294967296 <= 0 && 1 <= y) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 23 locations, 1 error locations. SAFE Result, 1.0s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 64 SDtfs, 7 SDslu, 55 SDs, 0 SdLazy, 24 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s 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 AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 10 PreInvPairs, 13 NumberOfFragments, 53 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 1745 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...