./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Parallel.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e610e856-ee15-452a-8ba4-12f31bdd4cd8/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e610e856-ee15-452a-8ba4-12f31bdd4cd8/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e610e856-ee15-452a-8ba4-12f31bdd4cd8/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e610e856-ee15-452a-8ba4-12f31bdd4cd8/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted/Parallel.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e610e856-ee15-452a-8ba4-12f31bdd4cd8/bin/utaipan-vmNK8stdcF/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e610e856-ee15-452a-8ba4-12f31bdd4cd8/bin/utaipan-vmNK8stdcF --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6d237a1b253e1662249abfec0a27795a205783446cdc8f92e994520c562b96f7 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 01:40:00,580 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 01:40:00,584 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 01:40:00,639 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 01:40:00,639 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 01:40:00,644 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 01:40:00,646 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 01:40:00,651 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 01:40:00,653 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 01:40:00,662 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 01:40:00,663 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 01:40:00,665 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 01:40:00,665 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 01:40:00,668 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 01:40:00,671 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 01:40:00,677 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 01:40:00,679 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 01:40:00,680 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 01:40:00,683 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 01:40:00,693 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 01:40:00,695 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 01:40:00,696 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 01:40:00,700 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 01:40:00,701 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 01:40:00,705 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 01:40:00,706 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 01:40:00,706 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 01:40:00,708 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 01:40:00,709 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 01:40:00,711 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 01:40:00,712 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 01:40:00,713 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 01:40:00,715 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 01:40:00,716 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 01:40:00,718 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 01:40:00,718 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 01:40:00,719 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 01:40:00,719 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 01:40:00,719 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 01:40:00,720 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 01:40:00,721 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 01:40:00,722 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e610e856-ee15-452a-8ba4-12f31bdd4cd8/bin/utaipan-vmNK8stdcF/config/svcomp-Overflow-64bit-Taipan_Default.epf [2021-11-13 01:40:00,767 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 01:40:00,768 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 01:40:00,768 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 01:40:00,769 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 01:40:00,769 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 01:40:00,775 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 01:40:00,775 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 01:40:00,775 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-13 01:40:00,776 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 01:40:00,776 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 01:40:00,777 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-13 01:40:00,777 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-13 01:40:00,778 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 01:40:00,778 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-13 01:40:00,778 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-13 01:40:00,778 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-13 01:40:00,779 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 01:40:00,779 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-13 01:40:00,780 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 01:40:00,780 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 01:40:00,780 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 01:40:00,780 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 01:40:00,780 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 01:40:00,781 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-13 01:40:00,781 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 01:40:00,781 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 01:40:00,782 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 01:40:00,782 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 01:40:00,782 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 01:40:00,784 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:40:00,784 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 01:40:00,784 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 01:40:00,785 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 01:40:00,785 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-13 01:40:00,785 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 01:40:00,785 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 01:40:00,786 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 01:40:00,786 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 01:40:00,786 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_e610e856-ee15-452a-8ba4-12f31bdd4cd8/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e610e856-ee15-452a-8ba4-12f31bdd4cd8/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6d237a1b253e1662249abfec0a27795a205783446cdc8f92e994520c562b96f7 [2021-11-13 01:40:01,094 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 01:40:01,120 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 01:40:01,123 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 01:40:01,124 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 01:40:01,125 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 01:40:01,127 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e610e856-ee15-452a-8ba4-12f31bdd4cd8/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/termination-crafted/Parallel.c [2021-11-13 01:40:01,198 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e610e856-ee15-452a-8ba4-12f31bdd4cd8/bin/utaipan-vmNK8stdcF/data/16a7c1b28/01da9554cf6a45a5bcf5dc16329389e0/FLAG73ef99c21 [2021-11-13 01:40:01,658 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 01:40:01,659 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e610e856-ee15-452a-8ba4-12f31bdd4cd8/sv-benchmarks/c/termination-crafted/Parallel.c [2021-11-13 01:40:01,666 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e610e856-ee15-452a-8ba4-12f31bdd4cd8/bin/utaipan-vmNK8stdcF/data/16a7c1b28/01da9554cf6a45a5bcf5dc16329389e0/FLAG73ef99c21 [2021-11-13 01:40:02,037 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e610e856-ee15-452a-8ba4-12f31bdd4cd8/bin/utaipan-vmNK8stdcF/data/16a7c1b28/01da9554cf6a45a5bcf5dc16329389e0 [2021-11-13 01:40:02,040 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 01:40:02,042 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 01:40:02,043 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 01:40:02,044 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 01:40:02,047 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 01:40:02,048 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:40:02" (1/1) ... [2021-11-13 01:40:02,049 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d866eba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:02, skipping insertion in model container [2021-11-13 01:40:02,049 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:40:02" (1/1) ... [2021-11-13 01:40:02,071 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 01:40:02,105 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:40:02,265 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:40:02,278 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 01:40:02,302 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:40:02,319 INFO L208 MainTranslator]: Completed translation [2021-11-13 01:40:02,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:02 WrapperNode [2021-11-13 01:40:02,320 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 01:40:02,321 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 01:40:02,321 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 01:40:02,321 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 01:40:02,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:02" (1/1) ... [2021-11-13 01:40:02,331 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:02" (1/1) ... [2021-11-13 01:40:02,349 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 01:40:02,350 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 01:40:02,350 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 01:40:02,350 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 01:40:02,359 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:02" (1/1) ... [2021-11-13 01:40:02,360 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:02" (1/1) ... [2021-11-13 01:40:02,360 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:02" (1/1) ... [2021-11-13 01:40:02,361 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:02" (1/1) ... [2021-11-13 01:40:02,363 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:02" (1/1) ... [2021-11-13 01:40:02,367 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:02" (1/1) ... [2021-11-13 01:40:02,368 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:02" (1/1) ... [2021-11-13 01:40:02,369 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 01:40:02,370 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 01:40:02,370 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 01:40:02,370 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 01:40:02,371 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:02" (1/1) ... [2021-11-13 01:40:02,379 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:40:02,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e610e856-ee15-452a-8ba4-12f31bdd4cd8/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:40:02,411 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e610e856-ee15-452a-8ba4-12f31bdd4cd8/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 01:40:02,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e610e856-ee15-452a-8ba4-12f31bdd4cd8/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 01:40:02,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 01:40:02,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 01:40:02,649 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 01:40:02,649 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-13 01:40:02,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:40:02 BoogieIcfgContainer [2021-11-13 01:40:02,655 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 01:40:02,658 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 01:40:02,658 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 01:40:02,662 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 01:40:02,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:40:02" (1/3) ... [2021-11-13 01:40:02,663 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dfa56e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:40:02, skipping insertion in model container [2021-11-13 01:40:02,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:02" (2/3) ... [2021-11-13 01:40:02,664 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dfa56e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:40:02, skipping insertion in model container [2021-11-13 01:40:02,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:40:02" (3/3) ... [2021-11-13 01:40:02,666 INFO L111 eAbstractionObserver]: Analyzing ICFG Parallel.c [2021-11-13 01:40:02,672 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 01:40:02,672 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-13 01:40:02,722 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 01:40:02,731 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 01:40:02,731 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-13 01:40:02,746 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:40:02,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-13 01:40:02,752 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:40:02,752 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-13 01:40:02,753 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-11-13 01:40:02,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:40:02,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1947627, now seen corresponding path program 1 times [2021-11-13 01:40:02,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:40:02,769 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701504033] [2021-11-13 01:40:02,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:40:02,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:40:02,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:40:02,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:40:02,917 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:40:02,917 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701504033] [2021-11-13 01:40:02,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701504033] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 01:40:02,918 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:40:02,919 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-13 01:40:02,923 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432261172] [2021-11-13 01:40:02,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:40:02,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 01:40:02,950 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:40:02,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 01:40:02,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:40:02,979 INFO L87 Difference]: Start difference. First operand has 12 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:40:03,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:40:03,009 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2021-11-13 01:40:03,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 01:40:03,012 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-11-13 01:40:03,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:40:03,021 INFO L225 Difference]: With dead ends: 12 [2021-11-13 01:40:03,021 INFO L226 Difference]: Without dead ends: 10 [2021-11-13 01:40:03,024 INFO L932 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 [2021-11-13 01:40:03,029 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 8 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.54ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.67ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.14ms IncrementalHoareTripleChecker+Time [2021-11-13 01:40:03,030 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 6 Invalid, 7 Unknown, 0 Unchecked, 0.67ms Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 13.14ms Time] [2021-11-13 01:40:03,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2021-11-13 01:40:03,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-11-13 01:40:03,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:40:03,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2021-11-13 01:40:03,062 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 4 [2021-11-13 01:40:03,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:40:03,063 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2021-11-13 01:40:03,063 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:40:03,064 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2021-11-13 01:40:03,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-13 01:40:03,064 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:40:03,065 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-13 01:40:03,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 01:40:03,066 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-11-13 01:40:03,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:40:03,067 INFO L85 PathProgramCache]: Analyzing trace with hash 1947435, now seen corresponding path program 1 times [2021-11-13 01:40:03,067 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:40:03,067 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071505684] [2021-11-13 01:40:03,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:40:03,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:40:03,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:40:03,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:40:03,120 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:40:03,121 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071505684] [2021-11-13 01:40:03,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071505684] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 01:40:03,121 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:40:03,121 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-13 01:40:03,122 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455406233] [2021-11-13 01:40:03,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:40:03,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 01:40:03,124 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:40:03,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 01:40:03,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:40:03,125 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:40:03,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:40:03,156 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2021-11-13 01:40:03,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 01:40:03,157 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-11-13 01:40:03,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:40:03,158 INFO L225 Difference]: With dead ends: 10 [2021-11-13 01:40:03,158 INFO L226 Difference]: Without dead ends: 9 [2021-11-13 01:40:03,159 INFO L932 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 [2021-11-13 01:40:03,161 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 6 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.14ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.45ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.90ms IncrementalHoareTripleChecker+Time [2021-11-13 01:40:03,162 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 3 Invalid, 8 Unknown, 0 Unchecked, 0.45ms Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 27.90ms Time] [2021-11-13 01:40:03,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-11-13 01:40:03,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-11-13 01:40:03,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:40:03,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2021-11-13 01:40:03,174 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 10 transitions. Word has length 4 [2021-11-13 01:40:03,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:40:03,175 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 10 transitions. [2021-11-13 01:40:03,175 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:40:03,176 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2021-11-13 01:40:03,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-13 01:40:03,176 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:40:03,176 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-13 01:40:03,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-13 01:40:03,177 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-11-13 01:40:03,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:40:03,178 INFO L85 PathProgramCache]: Analyzing trace with hash 60376491, now seen corresponding path program 1 times [2021-11-13 01:40:03,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:40:03,179 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837583769] [2021-11-13 01:40:03,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:40:03,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:40:03,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:40:03,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:40:03,293 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:40:03,293 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837583769] [2021-11-13 01:40:03,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837583769] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 01:40:03,294 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:40:03,294 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 01:40:03,294 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564644123] [2021-11-13 01:40:03,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:40:03,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 01:40:03,295 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:40:03,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 01:40:03,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:40:03,298 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:40:03,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:40:03,330 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2021-11-13 01:40:03,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 01:40:03,331 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-13 01:40:03,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:40:03,332 INFO L225 Difference]: With dead ends: 9 [2021-11-13 01:40:03,332 INFO L226 Difference]: Without dead ends: 8 [2021-11-13 01:40:03,333 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:40:03,335 INFO L933 BasicCegarLoop]: 1 mSDtfsCounter, 4 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.56ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.58ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.81ms IncrementalHoareTripleChecker+Time [2021-11-13 01:40:03,336 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 1 Invalid, 18 Unknown, 0 Unchecked, 0.58ms Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 26.81ms Time] [2021-11-13 01:40:03,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2021-11-13 01:40:03,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2021-11-13 01:40:03,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:40:03,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2021-11-13 01:40:03,340 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 9 transitions. Word has length 5 [2021-11-13 01:40:03,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:40:03,340 INFO L470 AbstractCegarLoop]: Abstraction has 8 states and 9 transitions. [2021-11-13 01:40:03,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:40:03,341 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2021-11-13 01:40:03,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-13 01:40:03,342 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:40:03,345 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-13 01:40:03,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-13 01:40:03,346 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-11-13 01:40:03,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:40:03,347 INFO L85 PathProgramCache]: Analyzing trace with hash 60370533, now seen corresponding path program 1 times [2021-11-13 01:40:03,347 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:40:03,347 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379136562] [2021-11-13 01:40:03,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:40:03,348 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:40:03,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:40:03,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:40:03,394 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:40:03,395 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379136562] [2021-11-13 01:40:03,395 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379136562] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 01:40:03,395 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:40:03,395 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 01:40:03,396 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000601216] [2021-11-13 01:40:03,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:40:03,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 01:40:03,397 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:40:03,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 01:40:03,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:40:03,399 INFO L87 Difference]: Start difference. First operand 8 states and 9 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:40:03,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:40:03,422 INFO L93 Difference]: Finished difference Result 8 states and 9 transitions. [2021-11-13 01:40:03,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 01:40:03,424 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-13 01:40:03,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:40:03,424 INFO L225 Difference]: With dead ends: 8 [2021-11-13 01:40:03,424 INFO L226 Difference]: Without dead ends: 0 [2021-11-13 01:40:03,426 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:40:03,435 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.98ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.83ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.49ms IncrementalHoareTripleChecker+Time [2021-11-13 01:40:03,436 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 7 Invalid, 7 Unknown, 0 Unchecked, 0.83ms Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 18.49ms Time] [2021-11-13 01:40:03,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-13 01:40:03,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-13 01:40:03,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:40:03,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-13 01:40:03,437 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2021-11-13 01:40:03,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:40:03,438 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-13 01:40:03,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:40:03,438 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-13 01:40:03,438 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-13 01:40:03,441 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2021-11-13 01:40:03,442 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2021-11-13 01:40:03,442 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2021-11-13 01:40:03,442 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2021-11-13 01:40:03,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-13 01:40:03,450 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-13 01:40:03,467 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2021-11-13 01:40:03,467 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-13 01:40:03,468 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2021-11-13 01:40:03,468 INFO L858 garLoopResultBuilder]: For program point L23(lines 23 27) no Hoare annotation was computed. [2021-11-13 01:40:03,468 INFO L854 garLoopResultBuilder]: At program point L23-2(lines 22 28) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= |ULTIMATE.start_main_~y~0#1| 2147483647)) [2021-11-13 01:40:03,471 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2021-11-13 01:40:03,472 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2021-11-13 01:40:03,472 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-13 01:40:03,472 INFO L858 garLoopResultBuilder]: For program point L26(line 26) no Hoare annotation was computed. [2021-11-13 01:40:03,472 INFO L858 garLoopResultBuilder]: For program point L26-1(line 26) no Hoare annotation was computed. [2021-11-13 01:40:03,472 INFO L858 garLoopResultBuilder]: For program point L24(line 24) no Hoare annotation was computed. [2021-11-13 01:40:03,474 INFO L858 garLoopResultBuilder]: For program point L24-1(line 24) no Hoare annotation was computed. [2021-11-13 01:40:03,479 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-11-13 01:40:03,481 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-13 01:40:03,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 01:40:03 BoogieIcfgContainer [2021-11-13 01:40:03,497 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-13 01:40:03,498 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 01:40:03,498 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 01:40:03,498 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 01:40:03,498 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:40:02" (3/4) ... [2021-11-13 01:40:03,502 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-13 01:40:03,516 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-11-13 01:40:03,517 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-13 01:40:03,517 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-13 01:40:03,559 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e610e856-ee15-452a-8ba4-12f31bdd4cd8/bin/utaipan-vmNK8stdcF/witness.graphml [2021-11-13 01:40:03,560 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 01:40:03,561 INFO L158 Benchmark]: Toolchain (without parser) took 1519.05ms. Allocated memory was 90.2MB in the beginning and 117.4MB in the end (delta: 27.3MB). Free memory was 49.3MB in the beginning and 72.2MB in the end (delta: -23.0MB). Peak memory consumption was 4.0MB. Max. memory is 16.1GB. [2021-11-13 01:40:03,562 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 90.2MB. Free memory is still 65.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:40:03,562 INFO L158 Benchmark]: CACSL2BoogieTranslator took 276.86ms. Allocated memory is still 90.2MB. Free memory was 49.1MB in the beginning and 67.7MB in the end (delta: -18.6MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. [2021-11-13 01:40:03,563 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.47ms. Allocated memory is still 90.2MB. Free memory was 67.7MB in the beginning and 66.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:40:03,563 INFO L158 Benchmark]: Boogie Preprocessor took 19.02ms. Allocated memory is still 90.2MB. Free memory was 66.5MB in the beginning and 65.5MB in the end (delta: 926.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:40:03,563 INFO L158 Benchmark]: RCFGBuilder took 286.36ms. Allocated memory is still 90.2MB. Free memory was 65.4MB in the beginning and 56.8MB in the end (delta: 8.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-13 01:40:03,564 INFO L158 Benchmark]: TraceAbstraction took 838.98ms. Allocated memory was 90.2MB in the beginning and 117.4MB in the end (delta: 27.3MB). Free memory was 56.3MB in the beginning and 74.9MB in the end (delta: -18.6MB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB. [2021-11-13 01:40:03,564 INFO L158 Benchmark]: Witness Printer took 62.56ms. Allocated memory is still 117.4MB. Free memory was 74.9MB in the beginning and 72.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 01:40:03,568 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 90.2MB. Free memory is still 65.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 276.86ms. Allocated memory is still 90.2MB. Free memory was 49.1MB in the beginning and 67.7MB in the end (delta: -18.6MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.47ms. Allocated memory is still 90.2MB. Free memory was 67.7MB in the beginning and 66.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 19.02ms. Allocated memory is still 90.2MB. Free memory was 66.5MB in the beginning and 65.5MB in the end (delta: 926.3kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 286.36ms. Allocated memory is still 90.2MB. Free memory was 65.4MB in the beginning and 56.8MB in the end (delta: 8.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 838.98ms. Allocated memory was 90.2MB in the beginning and 117.4MB in the end (delta: 27.3MB). Free memory was 56.3MB in the beginning and 74.9MB in the end (delta: -18.6MB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB. * Witness Printer took 62.56ms. Allocated memory is still 117.4MB. Free memory was 74.9MB in the beginning and 72.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 18 SdHoareTripleChecker+Valid, 86.35ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 72.22ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 37 IncrementalHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 15 mSDtfsCounter, 37 mSolverCounterSat, 2.54ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, InterpolantAutomatonStates: 13, 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 7 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 42 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 - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: x <= 2147483647 && y <= 2147483647 RESULT: Ultimate proved your program to be correct! [2021-11-13 01:40:03,640 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e610e856-ee15-452a-8ba4-12f31bdd4cd8/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE