./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig4.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_93ec9f2c-c92e-4754-848d-0ecb13467d75/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_93ec9f2c-c92e-4754-848d-0ecb13467d75/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_93ec9f2c-c92e-4754-848d-0ecb13467d75/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_93ec9f2c-c92e-4754-848d-0ecb13467d75/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig4.c -s /tmp/vcloud-vcloud-master/worker/run_dir_93ec9f2c-c92e-4754-848d-0ecb13467d75/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_93ec9f2c-c92e-4754-848d-0ecb13467d75/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5e607d57754c4f188315c4983a58e4a794edbb35 ........................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:43:52,530 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:43:52,533 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:43:52,593 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:43:52,594 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:43:52,596 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:43:52,598 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:43:52,602 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:43:52,605 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:43:52,607 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:43:52,609 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:43:52,611 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:43:52,611 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:43:52,613 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:43:52,615 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:43:52,617 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:43:52,619 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:43:52,621 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:43:52,646 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:43:52,650 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:43:52,653 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:43:52,655 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:43:52,675 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:43:52,676 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:43:52,681 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:43:52,681 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:43:52,682 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:43:52,683 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:43:52,684 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:43:52,685 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:43:52,686 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:43:52,688 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:43:52,689 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:43:52,691 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:43:52,692 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:43:52,693 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:43:52,694 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:43:52,694 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:43:52,694 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:43:52,696 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:43:52,697 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:43:52,698 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_93ec9f2c-c92e-4754-848d-0ecb13467d75/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-11-30 00:43:52,729 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:43:52,730 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:43:52,731 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:43:52,732 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:43:52,732 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:43:52,733 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:43:52,733 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 00:43:52,734 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:43:52,734 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:43:52,734 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 00:43:52,735 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:43:52,735 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 00:43:52,735 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-30 00:43:52,736 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:43:52,736 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:43:52,737 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 00:43:52,737 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:43:52,737 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:43:52,738 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:43:52,738 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 00:43:52,739 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:43:52,739 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:43:52,739 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:43:52,740 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 00:43:52,740 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:43:52,740 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 00:43:52,741 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 00:43:52,741 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:43:52,742 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_93ec9f2c-c92e-4754-848d-0ecb13467d75/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_93ec9f2c-c92e-4754-848d-0ecb13467d75/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5e607d57754c4f188315c4983a58e4a794edbb35 [2020-11-30 00:43:53,081 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:43:53,122 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:43:53,128 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:43:53,130 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:43:53,131 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:43:53,133 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_93ec9f2c-c92e-4754-848d-0ecb13467d75/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig4.c [2020-11-30 00:43:53,216 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_93ec9f2c-c92e-4754-848d-0ecb13467d75/bin/uautomizer/data/bcf93928c/15d8344d54c64b17887823e4c4f000bc/FLAGa980a0797 [2020-11-30 00:43:53,782 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:43:53,783 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_93ec9f2c-c92e-4754-848d-0ecb13467d75/sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig4.c [2020-11-30 00:43:53,797 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_93ec9f2c-c92e-4754-848d-0ecb13467d75/bin/uautomizer/data/bcf93928c/15d8344d54c64b17887823e4c4f000bc/FLAGa980a0797 [2020-11-30 00:43:54,145 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_93ec9f2c-c92e-4754-848d-0ecb13467d75/bin/uautomizer/data/bcf93928c/15d8344d54c64b17887823e4c4f000bc [2020-11-30 00:43:54,153 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:43:54,155 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:43:54,156 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:43:54,157 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:43:54,171 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:43:54,172 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:43:54" (1/1) ... [2020-11-30 00:43:54,174 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e731e13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:43:54, skipping insertion in model container [2020-11-30 00:43:54,175 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:43:54" (1/1) ... [2020-11-30 00:43:54,184 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:43:54,198 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:43:54,358 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:43:54,371 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:43:54,409 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:43:54,423 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:43:54,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:43:54 WrapperNode [2020-11-30 00:43:54,425 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:43:54,426 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:43:54,426 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:43:54,427 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:43:54,436 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:43:54" (1/1) ... [2020-11-30 00:43:54,442 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:43:54" (1/1) ... [2020-11-30 00:43:54,460 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:43:54,461 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:43:54,461 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:43:54,461 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:43:54,471 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:43:54" (1/1) ... [2020-11-30 00:43:54,471 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:43:54" (1/1) ... [2020-11-30 00:43:54,472 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:43:54" (1/1) ... [2020-11-30 00:43:54,472 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:43:54" (1/1) ... [2020-11-30 00:43:54,475 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:43:54" (1/1) ... [2020-11-30 00:43:54,479 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:43:54" (1/1) ... [2020-11-30 00:43:54,480 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:43:54" (1/1) ... [2020-11-30 00:43:54,482 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:43:54,483 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:43:54,483 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:43:54,483 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:43:54,485 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:43:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_93ec9f2c-c92e-4754-848d-0ecb13467d75/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:43:54,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:43:54,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:43:54,718 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:43:54,719 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-30 00:43:54,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:43:54 BoogieIcfgContainer [2020-11-30 00:43:54,721 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:43:54,725 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 00:43:54,725 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 00:43:54,730 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 00:43:54,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 12:43:54" (1/3) ... [2020-11-30 00:43:54,731 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10fc8e5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:43:54, skipping insertion in model container [2020-11-30 00:43:54,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:43:54" (2/3) ... [2020-11-30 00:43:54,731 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10fc8e5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:43:54, skipping insertion in model container [2020-11-30 00:43:54,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:43:54" (3/3) ... [2020-11-30 00:43:54,733 INFO L111 eAbstractionObserver]: Analyzing ICFG HeizmannHoenickeLeikePodelski-ATVA2013-Fig4.c [2020-11-30 00:43:54,744 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 00:43:54,748 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-11-30 00:43:54,760 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-11-30 00:43:54,784 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 00:43:54,784 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 00:43:54,784 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 00:43:54,784 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:43:54,785 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:43:54,785 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 00:43:54,785 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:43:54,785 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 00:43:54,799 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-11-30 00:43:54,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-30 00:43:54,804 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:43:54,804 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-11-30 00:43:54,805 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 00:43:54,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:43:54,812 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2020-11-30 00:43:54,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:43:54,821 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341693722] [2020-11-30 00:43:54,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:43:54,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:43:54,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:43:54,973 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341693722] [2020-11-30 00:43:54,974 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:43:54,974 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-30 00:43:54,975 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909138881] [2020-11-30 00:43:54,981 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:43:54,981 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:43:54,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:43:54,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:43:55,001 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 3 states. [2020-11-30 00:43:55,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:43:55,092 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2020-11-30 00:43:55,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:43:55,095 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-11-30 00:43:55,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:43:55,105 INFO L225 Difference]: With dead ends: 14 [2020-11-30 00:43:55,105 INFO L226 Difference]: Without dead ends: 5 [2020-11-30 00:43:55,108 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:43:55,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2020-11-30 00:43:55,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2020-11-30 00:43:55,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-11-30 00:43:55,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2020-11-30 00:43:55,184 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 5 transitions. Word has length 3 [2020-11-30 00:43:55,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:43:55,186 INFO L481 AbstractCegarLoop]: Abstraction has 5 states and 5 transitions. [2020-11-30 00:43:55,187 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:43:55,187 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2020-11-30 00:43:55,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-30 00:43:55,187 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:43:55,188 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-30 00:43:55,189 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 00:43:55,189 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 00:43:55,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:43:55,193 INFO L82 PathProgramCache]: Analyzing trace with hash 963307, now seen corresponding path program 1 times [2020-11-30 00:43:55,193 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:43:55,194 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091706384] [2020-11-30 00:43:55,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:43:55,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:43:55,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:43:55,401 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091706384] [2020-11-30 00:43:55,401 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:43:55,401 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 00:43:55,402 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787072035] [2020-11-30 00:43:55,403 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:43:55,403 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:43:55,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:43:55,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:43:55,405 INFO L87 Difference]: Start difference. First operand 5 states and 5 transitions. Second operand 4 states. [2020-11-30 00:43:55,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:43:55,538 INFO L93 Difference]: Finished difference Result 5 states and 5 transitions. [2020-11-30 00:43:55,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:43:55,539 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2020-11-30 00:43:55,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:43:55,540 INFO L225 Difference]: With dead ends: 5 [2020-11-30 00:43:55,540 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 00:43:55,541 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:43:55,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 00:43:55,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 00:43:55,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 00:43:55,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 00:43:55,542 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2020-11-30 00:43:55,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:43:55,543 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:43:55,543 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:43:55,543 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 00:43:55,543 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 00:43:55,544 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 00:43:55,546 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 00:43:55,577 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2020-11-30 00:43:55,577 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 00:43:55,577 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2020-11-30 00:43:55,578 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 00:43:55,578 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-30 00:43:55,578 INFO L270 CegarLoopResult]: At program point L20(lines 13 21) the Hoare annotation is: (<= ULTIMATE.start_main_~x~0 2147483647) [2020-11-30 00:43:55,578 INFO L274 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-11-30 00:43:55,578 INFO L274 CegarLoopResult]: For program point L18-1(line 18) no Hoare annotation was computed. [2020-11-30 00:43:55,579 INFO L270 CegarLoopResult]: At program point L17-2(lines 17 19) the Hoare annotation is: (and (<= 23 ULTIMATE.start_main_~y~0) (<= ULTIMATE.start_main_~x~0 2147483647)) [2020-11-30 00:43:55,579 INFO L274 CegarLoopResult]: For program point L17-3(lines 17 19) no Hoare annotation was computed. [2020-11-30 00:43:55,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 12:43:55 BoogieIcfgContainer [2020-11-30 00:43:55,602 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 00:43:55,604 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:43:55,604 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:43:55,605 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:43:55,605 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:43:54" (3/4) ... [2020-11-30 00:43:55,609 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 00:43:55,625 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-11-30 00:43:55,626 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-30 00:43:55,683 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_93ec9f2c-c92e-4754-848d-0ecb13467d75/bin/uautomizer/witness.graphml [2020-11-30 00:43:55,684 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:43:55,694 INFO L168 Benchmark]: Toolchain (without parser) took 1533.66 ms. Allocated memory was 98.6 MB in the beginning and 125.8 MB in the end (delta: 27.3 MB). Free memory was 70.4 MB in the beginning and 94.6 MB in the end (delta: -24.1 MB). Peak memory consumption was 2.8 MB. Max. memory is 16.1 GB. [2020-11-30 00:43:55,697 INFO L168 Benchmark]: CDTParser took 0.61 ms. Allocated memory is still 98.6 MB. Free memory is still 60.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:43:55,699 INFO L168 Benchmark]: CACSL2BoogieTranslator took 268.88 ms. Allocated memory is still 98.6 MB. Free memory was 70.2 MB in the beginning and 75.5 MB in the end (delta: -5.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:43:55,700 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.89 ms. Allocated memory is still 98.6 MB. Free memory was 75.5 MB in the beginning and 74.2 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:43:55,701 INFO L168 Benchmark]: Boogie Preprocessor took 21.26 ms. Allocated memory is still 98.6 MB. Free memory was 74.2 MB in the beginning and 73.2 MB in the end (delta: 934.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:43:55,702 INFO L168 Benchmark]: RCFGBuilder took 238.23 ms. Allocated memory is still 98.6 MB. Free memory was 73.2 MB in the beginning and 65.4 MB in the end (delta: 7.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-30 00:43:55,704 INFO L168 Benchmark]: TraceAbstraction took 877.46 ms. Allocated memory was 98.6 MB in the beginning and 125.8 MB in the end (delta: 27.3 MB). Free memory was 64.8 MB in the beginning and 96.7 MB in the end (delta: -31.9 MB). Peak memory consumption was 314.1 kB. Max. memory is 16.1 GB. [2020-11-30 00:43:55,705 INFO L168 Benchmark]: Witness Printer took 83.30 ms. Allocated memory is still 125.8 MB. Free memory was 96.7 MB in the beginning and 94.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:43:55,710 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.61 ms. Allocated memory is still 98.6 MB. Free memory is still 60.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 268.88 ms. Allocated memory is still 98.6 MB. Free memory was 70.2 MB in the beginning and 75.5 MB in the end (delta: -5.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 33.89 ms. Allocated memory is still 98.6 MB. Free memory was 75.5 MB in the beginning and 74.2 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.26 ms. Allocated memory is still 98.6 MB. Free memory was 74.2 MB in the beginning and 73.2 MB in the end (delta: 934.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 238.23 ms. Allocated memory is still 98.6 MB. Free memory was 73.2 MB in the beginning and 65.4 MB in the end (delta: 7.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 877.46 ms. Allocated memory was 98.6 MB in the beginning and 125.8 MB in the end (delta: 27.3 MB). Free memory was 64.8 MB in the beginning and 96.7 MB in the end (delta: -31.9 MB). Peak memory consumption was 314.1 kB. Max. memory is 16.1 GB. * Witness Printer took 83.30 ms. Allocated memory is still 125.8 MB. Free memory was 96.7 MB in the beginning and 94.6 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: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 23 <= y && x <= 2147483647 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: x <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 5 SDtfs, 8 SDslu, 0 SDs, 0 SdLazy, 10 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 3 NumberOfFragments, 10 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 39 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...