./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1130a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b00a6ac-396e-4b2a-a042-7dbc0542f64f/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b00a6ac-396e-4b2a-a042-7dbc0542f64f/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b00a6ac-396e-4b2a-a042-7dbc0542f64f/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b00a6ac-396e-4b2a-a042-7dbc0542f64f/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1130a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b00a6ac-396e-4b2a-a042-7dbc0542f64f/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b00a6ac-396e-4b2a-a042-7dbc0542f64f/bin/utaipan-Q6hlc19bkW --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 23d3becec5645fa497625df98df84137049a5fde6a7d2da6a420cf3c624fd037 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 14:48:09,481 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:48:09,484 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:48:09,526 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:48:09,526 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:48:09,530 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:48:09,532 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:48:09,535 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:48:09,538 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:48:09,543 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:48:09,544 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:48:09,545 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:48:09,545 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:48:09,546 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:48:09,547 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:48:09,548 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:48:09,549 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:48:09,550 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:48:09,552 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:48:09,553 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:48:09,557 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:48:09,560 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:48:09,562 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:48:09,562 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:48:09,577 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:48:09,578 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:48:09,578 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:48:09,580 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:48:09,580 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:48:09,581 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:48:09,582 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:48:09,583 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:48:09,584 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:48:09,586 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:48:09,587 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:48:09,587 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:48:09,588 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:48:09,588 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:48:09,588 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:48:09,590 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:48:09,591 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:48:09,592 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b00a6ac-396e-4b2a-a042-7dbc0542f64f/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-23 14:48:09,630 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:48:09,631 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:48:09,631 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:48:09,632 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:48:09,632 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:48:09,633 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:48:09,633 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:48:09,633 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:48:09,633 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:48:09,634 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:48:09,635 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:48:09,635 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:48:09,635 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:48:09,635 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:48:09,635 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:48:09,636 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:48:09,636 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:48:09,636 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:48:09,637 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:48:09,637 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 14:48:09,637 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:48:09,637 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 14:48:09,638 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:48:09,638 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:48:09,638 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:48:09,638 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:48:09,639 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 14:48:09,639 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:48:09,639 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:48:09,640 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:48:09,640 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:48:09,640 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:48:09,640 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:48:09,641 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:48:09,641 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:48:09,641 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:48:09,641 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:48:09,641 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:48:09,642 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:48:09,642 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:48:09,642 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:48:09,642 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b00a6ac-396e-4b2a-a042-7dbc0542f64f/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b00a6ac-396e-4b2a-a042-7dbc0542f64f/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23d3becec5645fa497625df98df84137049a5fde6a7d2da6a420cf3c624fd037 [2022-11-23 14:48:09,877 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:48:09,910 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:48:09,913 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:48:09,914 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:48:09,915 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:48:09,916 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b00a6ac-396e-4b2a-a042-7dbc0542f64f/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/float-newlib/double_req_bl_1130a.c [2022-11-23 14:48:12,963 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:48:13,197 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:48:13,197 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b00a6ac-396e-4b2a-a042-7dbc0542f64f/sv-benchmarks/c/float-newlib/double_req_bl_1130a.c [2022-11-23 14:48:13,205 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b00a6ac-396e-4b2a-a042-7dbc0542f64f/bin/utaipan-Q6hlc19bkW/data/1f02d3c7a/085832c8fe8442c4a4b9509edfaffef2/FLAGd4012c7e2 [2022-11-23 14:48:13,219 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b00a6ac-396e-4b2a-a042-7dbc0542f64f/bin/utaipan-Q6hlc19bkW/data/1f02d3c7a/085832c8fe8442c4a4b9509edfaffef2 [2022-11-23 14:48:13,222 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:48:13,223 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:48:13,225 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:48:13,225 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:48:13,229 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:48:13,229 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:48:13" (1/1) ... [2022-11-23 14:48:13,231 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@777f76f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:13, skipping insertion in model container [2022-11-23 14:48:13,231 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:48:13" (1/1) ... [2022-11-23 14:48:13,239 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:48:13,258 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:48:13,454 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b00a6ac-396e-4b2a-a042-7dbc0542f64f/sv-benchmarks/c/float-newlib/double_req_bl_1130a.c[4166,4179] [2022-11-23 14:48:13,458 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:48:13,467 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:48:13,541 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b00a6ac-396e-4b2a-a042-7dbc0542f64f/sv-benchmarks/c/float-newlib/double_req_bl_1130a.c[4166,4179] [2022-11-23 14:48:13,542 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:48:13,558 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:48:13,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:13 WrapperNode [2022-11-23 14:48:13,559 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:48:13,560 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:48:13,560 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:48:13,560 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:48:13,568 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:13" (1/1) ... [2022-11-23 14:48:13,579 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:13" (1/1) ... [2022-11-23 14:48:13,621 INFO L138 Inliner]: procedures = 19, calls = 39, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 242 [2022-11-23 14:48:13,621 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:48:13,622 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:48:13,622 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:48:13,622 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:48:13,633 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:13" (1/1) ... [2022-11-23 14:48:13,633 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:13" (1/1) ... [2022-11-23 14:48:13,638 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:13" (1/1) ... [2022-11-23 14:48:13,638 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:13" (1/1) ... [2022-11-23 14:48:13,650 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:13" (1/1) ... [2022-11-23 14:48:13,657 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:13" (1/1) ... [2022-11-23 14:48:13,659 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:13" (1/1) ... [2022-11-23 14:48:13,661 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:13" (1/1) ... [2022-11-23 14:48:13,665 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:48:13,666 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:48:13,666 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:48:13,666 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:48:13,667 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:13" (1/1) ... [2022-11-23 14:48:13,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:48:13,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b00a6ac-396e-4b2a-a042-7dbc0542f64f/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:48:13,699 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b00a6ac-396e-4b2a-a042-7dbc0542f64f/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:48:13,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b00a6ac-396e-4b2a-a042-7dbc0542f64f/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:48:13,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:48:13,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:48:13,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 14:48:13,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 14:48:13,747 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-11-23 14:48:13,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-11-23 14:48:13,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:48:13,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:48:13,747 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 14:48:13,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2022-11-23 14:48:13,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 14:48:13,878 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:48:13,880 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:48:14,372 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:48:14,662 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:48:14,662 INFO L300 CfgBuilder]: Removed 16 assume(true) statements. [2022-11-23 14:48:14,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:48:14 BoogieIcfgContainer [2022-11-23 14:48:14,667 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:48:14,670 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:48:14,670 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:48:14,673 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:48:14,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:48:13" (1/3) ... [2022-11-23 14:48:14,674 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c7de803 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:48:14, skipping insertion in model container [2022-11-23 14:48:14,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:13" (2/3) ... [2022-11-23 14:48:14,677 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c7de803 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:48:14, skipping insertion in model container [2022-11-23 14:48:14,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:48:14" (3/3) ... [2022-11-23 14:48:14,678 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1130a.c [2022-11-23 14:48:14,698 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:48:14,698 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 14:48:14,767 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:48:14,774 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4c6107e0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:48:14,775 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 14:48:14,784 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 43 states have (on average 1.7674418604651163) internal successors, (76), 44 states have internal predecessors, (76), 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) [2022-11-23 14:48:14,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-23 14:48:14,794 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:48:14,795 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:48:14,796 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:48:14,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:48:14,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1875325126, now seen corresponding path program 1 times [2022-11-23 14:48:14,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:48:14,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524065153] [2022-11-23 14:48:14,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:48:14,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:48:14,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:48:14,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:48:14,953 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:48:14,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524065153] [2022-11-23 14:48:14,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524065153] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:48:14,954 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:48:14,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:48:14,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957845607] [2022-11-23 14:48:14,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:48:14,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 14:48:14,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:48:14,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 14:48:14,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:48:14,991 INFO L87 Difference]: Start difference. First operand has 45 states, 43 states have (on average 1.7674418604651163) internal successors, (76), 44 states have internal predecessors, (76), 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 2 states, 2 states have (on average 5.0) internal successors, (10), 2 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) [2022-11-23 14:48:15,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:48:15,040 INFO L93 Difference]: Finished difference Result 88 states and 149 transitions. [2022-11-23 14:48:15,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 14:48:15,042 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 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) Word has length 10 [2022-11-23 14:48:15,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:48:15,050 INFO L225 Difference]: With dead ends: 88 [2022-11-23 14:48:15,051 INFO L226 Difference]: Without dead ends: 42 [2022-11-23 14:48:15,053 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:48:15,057 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:48:15,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 48 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 14:48:15,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-11-23 14:48:15,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2022-11-23 14:48:15,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 41 states have (on average 1.4634146341463414) internal successors, (60), 41 states have internal predecessors, (60), 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) [2022-11-23 14:48:15,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 60 transitions. [2022-11-23 14:48:15,091 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 60 transitions. Word has length 10 [2022-11-23 14:48:15,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:48:15,092 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 60 transitions. [2022-11-23 14:48:15,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 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) [2022-11-23 14:48:15,092 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 60 transitions. [2022-11-23 14:48:15,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-23 14:48:15,093 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:48:15,093 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:48:15,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:48:15,094 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:48:15,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:48:15,095 INFO L85 PathProgramCache]: Analyzing trace with hash -86320413, now seen corresponding path program 1 times [2022-11-23 14:48:15,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:48:15,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036519852] [2022-11-23 14:48:15,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:48:15,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:48:15,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 14:48:15,252 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 14:48:15,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 14:48:15,418 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-23 14:48:15,419 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 14:48:15,420 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-23 14:48:15,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 14:48:15,427 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-23 14:48:15,431 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 14:48:15,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:48:15 BoogieIcfgContainer [2022-11-23 14:48:15,484 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 14:48:15,485 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 14:48:15,485 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 14:48:15,486 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 14:48:15,486 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:48:14" (3/4) ... [2022-11-23 14:48:15,489 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 14:48:15,489 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 14:48:15,490 INFO L158 Benchmark]: Toolchain (without parser) took 2266.18ms. Allocated memory is still 184.5MB. Free memory was 145.1MB in the beginning and 99.3MB in the end (delta: 45.8MB). Peak memory consumption was 48.6MB. Max. memory is 16.1GB. [2022-11-23 14:48:15,490 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 134.2MB. Free memory is still 78.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:48:15,492 INFO L158 Benchmark]: CACSL2BoogieTranslator took 334.38ms. Allocated memory is still 184.5MB. Free memory was 145.1MB in the beginning and 131.6MB in the end (delta: 13.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-23 14:48:15,496 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.52ms. Allocated memory is still 184.5MB. Free memory was 131.6MB in the beginning and 128.3MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:48:15,499 INFO L158 Benchmark]: Boogie Preprocessor took 42.88ms. Allocated memory is still 184.5MB. Free memory was 128.3MB in the beginning and 125.9MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:48:15,502 INFO L158 Benchmark]: RCFGBuilder took 1001.44ms. Allocated memory is still 184.5MB. Free memory was 125.9MB in the beginning and 142.3MB in the end (delta: -16.4MB). Peak memory consumption was 40.2MB. Max. memory is 16.1GB. [2022-11-23 14:48:15,502 INFO L158 Benchmark]: TraceAbstraction took 815.07ms. Allocated memory is still 184.5MB. Free memory was 142.3MB in the beginning and 99.3MB in the end (delta: 43.0MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2022-11-23 14:48:15,502 INFO L158 Benchmark]: Witness Printer took 3.98ms. Allocated memory is still 184.5MB. Free memory is still 99.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:48:15,504 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 134.2MB. Free memory is still 78.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 334.38ms. Allocated memory is still 184.5MB. Free memory was 145.1MB in the beginning and 131.6MB in the end (delta: 13.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.52ms. Allocated memory is still 184.5MB. Free memory was 131.6MB in the beginning and 128.3MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.88ms. Allocated memory is still 184.5MB. Free memory was 128.3MB in the beginning and 125.9MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1001.44ms. Allocated memory is still 184.5MB. Free memory was 125.9MB in the beginning and 142.3MB in the end (delta: -16.4MB). Peak memory consumption was 40.2MB. Max. memory is 16.1GB. * TraceAbstraction took 815.07ms. Allocated memory is still 184.5MB. Free memory was 142.3MB in the beginning and 99.3MB in the end (delta: 43.0MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * Witness Printer took 3.98ms. Allocated memory is still 184.5MB. Free memory is still 99.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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 - UnprovableResult [Line: 193]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 46, overapproximation of someUnaryDOUBLEoperation at line 22, overapproximation of bitwiseAnd at line 41, overapproximation of someBinaryArithmeticDOUBLEoperation at line 47, overapproximation of someBinaryDOUBLEComparisonOperation at line 192, overapproximation of bitwiseXor at line 42. Possible FailurePath: [L20-L23] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L184] double x = 0.0; [L185] double y = __VERIFIER_nondet_double(); [L187] COND TRUE y < 0.0 || y > 0.0 [L189] CALL, EXPR fmod_double(x, y) [L26] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L27] __uint32_t lx, ly, lz; VAL [one_fmod=1, unknown-#in~x-unknown=0, unknown-#in~y-unknown=8589934614, x=0, y=8589934614, Zero_fmod={4:0}] [L30] ieee_double_shape_type ew_u; [L31] ew_u.value = (x) [L32] EXPR ew_u.parts.msw [L32] (hx) = ew_u.parts.msw [L33] EXPR ew_u.parts.lsw [L33] (lx) = ew_u.parts.lsw [L36] ieee_double_shape_type ew_u; [L37] ew_u.value = (y) [L38] EXPR ew_u.parts.msw [L38] (hy) = ew_u.parts.msw [L39] EXPR ew_u.parts.lsw [L39] (ly) = ew_u.parts.lsw [L41] sx = hx & 0x80000000 [L42] hx ^= sx [L43] hy &= 0x7fffffff VAL [hx=4294967295, hy=0, lx=8589934602, ly=0, one_fmod=1, sx=4294967295, unknown-#in~x-unknown=0, unknown-#in~y-unknown=8589934614, x=0, y=8589934614, Zero_fmod={4:0}] [L45-L46] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L47] return (x * y) / (x * y); VAL [hx=4294967295, hy=0, lx=8589934602, ly=0, one_fmod=1, sx=4294967295, unknown-#in~x-unknown=0, unknown-#in~y-unknown=8589934614, x=0, y=8589934614, Zero_fmod={4:0}] [L189] RET, EXPR fmod_double(x, y) [L189] double res = fmod_double(x, y); [L192] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [one_fmod=1, res=8589934613, res == 0.0 && __signbit_double(res) == 0=0, x=0, y=8589934614, Zero_fmod={4:0}] [L192] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L193] reach_error() VAL [one_fmod=1, res=8589934613, x=0, y=8589934614, Zero_fmod={4:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 45 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 48 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 16 IncrementalHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 48 mSDtfsCounter, 16 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 could not prove your program: unable to determine feasibility of some traces [2022-11-23 14:48:15,532 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b00a6ac-396e-4b2a-a042-7dbc0542f64f/bin/utaipan-Q6hlc19bkW/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b00a6ac-396e-4b2a-a042-7dbc0542f64f/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b00a6ac-396e-4b2a-a042-7dbc0542f64f/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b00a6ac-396e-4b2a-a042-7dbc0542f64f/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b00a6ac-396e-4b2a-a042-7dbc0542f64f/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1130a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b00a6ac-396e-4b2a-a042-7dbc0542f64f/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b00a6ac-396e-4b2a-a042-7dbc0542f64f/bin/utaipan-Q6hlc19bkW --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 23d3becec5645fa497625df98df84137049a5fde6a7d2da6a420cf3c624fd037 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 14:48:17,855 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:48:17,857 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:48:17,879 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:48:17,879 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:48:17,881 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:48:17,882 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:48:17,884 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:48:17,885 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:48:17,886 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:48:17,887 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:48:17,889 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:48:17,889 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:48:17,890 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:48:17,891 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:48:17,892 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:48:17,893 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:48:17,894 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:48:17,896 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:48:17,898 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:48:17,899 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:48:17,901 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:48:17,902 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:48:17,903 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:48:17,907 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:48:17,907 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:48:17,908 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:48:17,909 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:48:17,909 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:48:17,910 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:48:17,911 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:48:17,911 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:48:17,912 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:48:17,913 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:48:17,926 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:48:17,927 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:48:17,928 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:48:17,928 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:48:17,928 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:48:17,929 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:48:17,930 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:48:17,931 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b00a6ac-396e-4b2a-a042-7dbc0542f64f/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-11-23 14:48:17,957 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:48:17,957 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:48:17,957 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:48:17,957 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:48:17,958 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:48:17,958 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:48:17,959 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:48:17,959 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:48:17,959 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:48:17,959 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:48:17,959 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:48:17,960 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:48:17,960 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:48:17,961 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 14:48:17,961 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 14:48:17,961 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:48:17,961 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:48:17,961 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:48:17,962 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:48:17,962 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 14:48:17,962 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-23 14:48:17,962 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-23 14:48:17,962 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 14:48:17,963 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:48:17,963 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:48:17,963 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:48:17,963 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:48:17,964 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 14:48:17,964 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:48:17,964 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:48:17,964 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:48:17,964 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:48:17,965 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:48:17,965 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-23 14:48:17,965 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-23 14:48:17,965 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:48:17,965 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:48:17,966 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 14:48:17,966 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_8b00a6ac-396e-4b2a-a042-7dbc0542f64f/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b00a6ac-396e-4b2a-a042-7dbc0542f64f/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23d3becec5645fa497625df98df84137049a5fde6a7d2da6a420cf3c624fd037 [2022-11-23 14:48:18,325 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:48:18,348 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:48:18,351 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:48:18,352 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:48:18,353 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:48:18,354 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b00a6ac-396e-4b2a-a042-7dbc0542f64f/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/float-newlib/double_req_bl_1130a.c [2022-11-23 14:48:21,368 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:48:21,647 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:48:21,658 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b00a6ac-396e-4b2a-a042-7dbc0542f64f/sv-benchmarks/c/float-newlib/double_req_bl_1130a.c [2022-11-23 14:48:21,669 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b00a6ac-396e-4b2a-a042-7dbc0542f64f/bin/utaipan-Q6hlc19bkW/data/ff6b86e34/f8215dab9181439eb67459ba8f66e633/FLAG03ba4c47c [2022-11-23 14:48:21,695 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b00a6ac-396e-4b2a-a042-7dbc0542f64f/bin/utaipan-Q6hlc19bkW/data/ff6b86e34/f8215dab9181439eb67459ba8f66e633 [2022-11-23 14:48:21,699 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:48:21,701 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:48:21,711 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:48:21,711 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:48:21,715 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:48:21,715 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:48:21" (1/1) ... [2022-11-23 14:48:21,716 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44a2c25b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:21, skipping insertion in model container [2022-11-23 14:48:21,717 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:48:21" (1/1) ... [2022-11-23 14:48:21,724 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:48:21,766 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:48:21,999 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b00a6ac-396e-4b2a-a042-7dbc0542f64f/sv-benchmarks/c/float-newlib/double_req_bl_1130a.c[4166,4179] [2022-11-23 14:48:22,006 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:48:22,033 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:48:22,104 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b00a6ac-396e-4b2a-a042-7dbc0542f64f/sv-benchmarks/c/float-newlib/double_req_bl_1130a.c[4166,4179] [2022-11-23 14:48:22,115 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:48:22,138 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:48:22,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:22 WrapperNode [2022-11-23 14:48:22,139 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:48:22,140 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:48:22,140 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:48:22,141 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:48:22,147 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:22" (1/1) ... [2022-11-23 14:48:22,159 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:22" (1/1) ... [2022-11-23 14:48:22,200 INFO L138 Inliner]: procedures = 22, calls = 39, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 242 [2022-11-23 14:48:22,200 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:48:22,201 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:48:22,201 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:48:22,201 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:48:22,211 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:22" (1/1) ... [2022-11-23 14:48:22,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:22" (1/1) ... [2022-11-23 14:48:22,215 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:22" (1/1) ... [2022-11-23 14:48:22,216 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:22" (1/1) ... [2022-11-23 14:48:22,228 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:22" (1/1) ... [2022-11-23 14:48:22,233 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:22" (1/1) ... [2022-11-23 14:48:22,236 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:22" (1/1) ... [2022-11-23 14:48:22,238 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:22" (1/1) ... [2022-11-23 14:48:22,242 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:48:22,243 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:48:22,243 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:48:22,243 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:48:22,244 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:22" (1/1) ... [2022-11-23 14:48:22,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:48:22,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b00a6ac-396e-4b2a-a042-7dbc0542f64f/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:48:22,280 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b00a6ac-396e-4b2a-a042-7dbc0542f64f/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:48:22,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b00a6ac-396e-4b2a-a042-7dbc0542f64f/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:48:22,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:48:22,333 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2022-11-23 14:48:22,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2022-11-23 14:48:22,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-23 14:48:22,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 14:48:22,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2022-11-23 14:48:22,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-23 14:48:22,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:48:22,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:48:22,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-23 14:48:22,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 14:48:22,465 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:48:22,467 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:48:27,810 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:48:27,815 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:48:27,815 INFO L300 CfgBuilder]: Removed 16 assume(true) statements. [2022-11-23 14:48:27,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:48:27 BoogieIcfgContainer [2022-11-23 14:48:27,818 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:48:27,820 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:48:27,820 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:48:27,824 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:48:27,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:48:21" (1/3) ... [2022-11-23 14:48:27,825 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ee13078 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:48:27, skipping insertion in model container [2022-11-23 14:48:27,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:22" (2/3) ... [2022-11-23 14:48:27,825 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ee13078 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:48:27, skipping insertion in model container [2022-11-23 14:48:27,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:48:27" (3/3) ... [2022-11-23 14:48:27,827 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1130a.c [2022-11-23 14:48:27,845 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:48:27,846 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 14:48:27,905 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:48:27,911 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@23b3f367, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:48:27,911 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 14:48:27,916 INFO L276 IsEmpty]: Start isEmpty. Operand has 61 states, 59 states have (on average 1.7966101694915255) internal successors, (106), 60 states have internal predecessors, (106), 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) [2022-11-23 14:48:27,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-23 14:48:27,922 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:48:27,923 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:48:27,923 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:48:27,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:48:27,931 INFO L85 PathProgramCache]: Analyzing trace with hash 464220005, now seen corresponding path program 1 times [2022-11-23 14:48:27,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:48:27,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [691065404] [2022-11-23 14:48:27,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:48:27,945 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:48:27,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b00a6ac-396e-4b2a-a042-7dbc0542f64f/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:48:27,946 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b00a6ac-396e-4b2a-a042-7dbc0542f64f/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:48:27,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b00a6ac-396e-4b2a-a042-7dbc0542f64f/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-23 14:48:28,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:48:28,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-23 14:48:28,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:48:28,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:48:28,935 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:48:28,936 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:48:28,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [691065404] [2022-11-23 14:48:28,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [691065404] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:48:28,937 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:48:28,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:48:28,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934270665] [2022-11-23 14:48:28,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:48:28,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 14:48:28,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:48:28,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 14:48:28,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:48:28,972 INFO L87 Difference]: Start difference. First operand has 61 states, 59 states have (on average 1.7966101694915255) internal successors, (106), 60 states have internal predecessors, (106), 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 2 states, 2 states have (on average 5.5) internal successors, (11), 2 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) [2022-11-23 14:48:28,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:48:28,995 INFO L93 Difference]: Finished difference Result 119 states and 208 transitions. [2022-11-23 14:48:28,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 14:48:28,998 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 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) Word has length 11 [2022-11-23 14:48:28,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:48:29,006 INFO L225 Difference]: With dead ends: 119 [2022-11-23 14:48:29,006 INFO L226 Difference]: Without dead ends: 57 [2022-11-23 14:48:29,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:48:29,013 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:48:29,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 14:48:29,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-11-23 14:48:29,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2022-11-23 14:48:29,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.5) internal successors, (84), 56 states have internal predecessors, (84), 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) [2022-11-23 14:48:29,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 84 transitions. [2022-11-23 14:48:29,049 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 84 transitions. Word has length 11 [2022-11-23 14:48:29,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:48:29,050 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 84 transitions. [2022-11-23 14:48:29,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 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) [2022-11-23 14:48:29,050 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 84 transitions. [2022-11-23 14:48:29,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-23 14:48:29,051 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:48:29,051 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:48:29,076 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b00a6ac-396e-4b2a-a042-7dbc0542f64f/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-11-23 14:48:29,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b00a6ac-396e-4b2a-a042-7dbc0542f64f/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:48:29,267 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:48:29,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:48:29,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1051323842, now seen corresponding path program 1 times [2022-11-23 14:48:29,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:48:29,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [462376747] [2022-11-23 14:48:29,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:48:29,269 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:48:29,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b00a6ac-396e-4b2a-a042-7dbc0542f64f/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:48:29,278 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b00a6ac-396e-4b2a-a042-7dbc0542f64f/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:48:29,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b00a6ac-396e-4b2a-a042-7dbc0542f64f/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-23 14:48:30,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:48:30,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-23 14:48:30,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:48:30,619 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 16 [2022-11-23 14:48:31,210 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2022-11-23 14:48:38,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:48:38,070 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:48:38,071 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:48:38,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [462376747] [2022-11-23 14:48:38,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [462376747] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:48:38,071 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:48:38,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 14:48:38,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463373936] [2022-11-23 14:48:38,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:48:38,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 14:48:38,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:48:38,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 14:48:38,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=30, Unknown=1, NotChecked=0, Total=42 [2022-11-23 14:48:38,075 INFO L87 Difference]: Start difference. First operand 57 states and 84 transitions. Second operand has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 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) [2022-11-23 14:48:40,932 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:48:51,198 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:48:53,236 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:48:55,279 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:48:57,313 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:48:59,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:49:01,353 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:49:03,392 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:49:05,398 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:49:07,415 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:49:09,449 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:49:11,491 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:49:13,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:49:15,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:49:17,544 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:49:19,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:49:21,561 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:49:23,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:49:25,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:49:27,594 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:49:29,626 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:49:31,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:49:33,668 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:49:35,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:49:37,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:49:39,765 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:49:41,819 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:49:43,826 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:49:45,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:49:47,844 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:49:49,523 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:49:51,641 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:49:53,653 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:49:56,971 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-23 14:49:56,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:49:56,973 INFO L93 Difference]: Finished difference Result 118 states and 167 transitions. [2022-11-23 14:49:57,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 14:49:57,011 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 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) Word has length 13 [2022-11-23 14:49:57,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:49:57,012 INFO L225 Difference]: With dead ends: 118 [2022-11-23 14:49:57,013 INFO L226 Difference]: Without dead ends: 73 [2022-11-23 14:49:57,013 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 15.6s TimeCoverageRelationStatistics Valid=33, Invalid=74, Unknown=3, NotChecked=0, Total=110 [2022-11-23 14:49:57,014 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 201 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 3 mSolverCounterUnsat, 32 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 69.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 32 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 70.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:49:57,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 163 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 113 Invalid, 32 Unknown, 0 Unchecked, 70.0s Time] [2022-11-23 14:49:57,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-11-23 14:49:57,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 55. [2022-11-23 14:49:57,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 54 states have (on average 1.4259259259259258) internal successors, (77), 54 states have internal predecessors, (77), 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) [2022-11-23 14:49:57,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 77 transitions. [2022-11-23 14:49:57,028 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 77 transitions. Word has length 13 [2022-11-23 14:49:57,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:49:57,029 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 77 transitions. [2022-11-23 14:49:57,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 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) [2022-11-23 14:49:57,030 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 77 transitions. [2022-11-23 14:49:57,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-23 14:49:57,030 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:49:57,031 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:49:57,062 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b00a6ac-396e-4b2a-a042-7dbc0542f64f/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-23 14:49:57,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b00a6ac-396e-4b2a-a042-7dbc0542f64f/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:49:57,255 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:49:57,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:49:57,256 INFO L85 PathProgramCache]: Analyzing trace with hash 734189607, now seen corresponding path program 1 times [2022-11-23 14:49:57,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:49:57,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1936580796] [2022-11-23 14:49:57,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:49:57,257 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:49:57,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b00a6ac-396e-4b2a-a042-7dbc0542f64f/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:49:57,258 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b00a6ac-396e-4b2a-a042-7dbc0542f64f/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:49:57,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b00a6ac-396e-4b2a-a042-7dbc0542f64f/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-23 14:49:57,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:49:57,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 14:49:57,356 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:49:57,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:49:57,757 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:49:57,757 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:49:57,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1936580796] [2022-11-23 14:49:57,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1936580796] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:49:57,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:49:57,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 14:49:57,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190617645] [2022-11-23 14:49:57,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:49:57,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 14:49:57,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:49:57,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 14:49:57,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:49:57,760 INFO L87 Difference]: Start difference. First operand 55 states and 77 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 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) [2022-11-23 14:50:00,540 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-23 14:50:00,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:50:00,640 INFO L93 Difference]: Finished difference Result 76 states and 97 transitions. [2022-11-23 14:50:00,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 14:50:00,640 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 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 15 [2022-11-23 14:50:00,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:50:00,641 INFO L225 Difference]: With dead ends: 76 [2022-11-23 14:50:00,641 INFO L226 Difference]: Without dead ends: 73 [2022-11-23 14:50:00,642 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-11-23 14:50:00,643 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 175 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:50:00,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 223 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-11-23 14:50:00,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-11-23 14:50:00,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 57. [2022-11-23 14:50:00,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.4107142857142858) internal successors, (79), 56 states have internal predecessors, (79), 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) [2022-11-23 14:50:00,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 79 transitions. [2022-11-23 14:50:00,656 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 79 transitions. Word has length 15 [2022-11-23 14:50:00,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:50:00,656 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 79 transitions. [2022-11-23 14:50:00,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 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) [2022-11-23 14:50:00,657 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 79 transitions. [2022-11-23 14:50:00,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-23 14:50:00,657 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:50:00,657 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:50:00,671 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b00a6ac-396e-4b2a-a042-7dbc0542f64f/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-23 14:50:00,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b00a6ac-396e-4b2a-a042-7dbc0542f64f/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:50:00,871 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:50:00,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:50:00,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1151454894, now seen corresponding path program 1 times [2022-11-23 14:50:00,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:50:00,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [681040418] [2022-11-23 14:50:00,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:50:00,873 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:50:00,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b00a6ac-396e-4b2a-a042-7dbc0542f64f/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:50:00,874 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b00a6ac-396e-4b2a-a042-7dbc0542f64f/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:50:00,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b00a6ac-396e-4b2a-a042-7dbc0542f64f/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-23 14:50:00,972 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b00a6ac-396e-4b2a-a042-7dbc0542f64f/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Exception during sending of exit command (exit): Broken pipe [2022-11-23 14:50:00,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b00a6ac-396e-4b2a-a042-7dbc0542f64f/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 139 [2022-11-23 14:50:01,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b00a6ac-396e-4b2a-a042-7dbc0542f64f/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:50:01,174 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b00a6ac-396e-4b2a-a042-7dbc0542f64f/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:236) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:91) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b00a6ac-396e-4b2a-a042-7dbc0542f64f/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:130) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:317) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:215) ... 30 more Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1465) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) ... 37 more [2022-11-23 14:50:01,177 INFO L158 Benchmark]: Toolchain (without parser) took 99476.15ms. Allocated memory was 67.1MB in the beginning and 94.4MB in the end (delta: 27.3MB). Free memory was 43.9MB in the beginning and 39.5MB in the end (delta: 4.4MB). Peak memory consumption was 27.8MB. Max. memory is 16.1GB. [2022-11-23 14:50:01,177 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 67.1MB. Free memory is still 45.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:50:01,177 INFO L158 Benchmark]: CACSL2BoogieTranslator took 428.97ms. Allocated memory is still 67.1MB. Free memory was 43.7MB in the beginning and 29.2MB in the end (delta: 14.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-23 14:50:01,178 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.02ms. Allocated memory was 67.1MB in the beginning and 94.4MB in the end (delta: 27.3MB). Free memory was 29.2MB in the beginning and 75.5MB in the end (delta: -46.3MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. [2022-11-23 14:50:01,178 INFO L158 Benchmark]: Boogie Preprocessor took 41.01ms. Allocated memory is still 94.4MB. Free memory was 75.5MB in the beginning and 73.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:50:01,178 INFO L158 Benchmark]: RCFGBuilder took 5575.14ms. Allocated memory is still 94.4MB. Free memory was 73.1MB in the beginning and 49.6MB in the end (delta: 23.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-23 14:50:01,179 INFO L158 Benchmark]: TraceAbstraction took 93356.24ms. Allocated memory is still 94.4MB. Free memory was 48.9MB in the beginning and 39.5MB in the end (delta: 9.4MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. [2022-11-23 14:50:01,180 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 67.1MB. Free memory is still 45.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 428.97ms. Allocated memory is still 67.1MB. Free memory was 43.7MB in the beginning and 29.2MB in the end (delta: 14.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.02ms. Allocated memory was 67.1MB in the beginning and 94.4MB in the end (delta: 27.3MB). Free memory was 29.2MB in the beginning and 75.5MB in the end (delta: -46.3MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.01ms. Allocated memory is still 94.4MB. Free memory was 75.5MB in the beginning and 73.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 5575.14ms. Allocated memory is still 94.4MB. Free memory was 73.1MB in the beginning and 49.6MB in the end (delta: 23.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 93356.24ms. Allocated memory is still 94.4MB. Free memory was 48.9MB in the beginning and 39.5MB in the end (delta: 9.4MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b00a6ac-396e-4b2a-a042-7dbc0542f64f/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5) with exit command (exit)) Received EOF on stdin. No stderr output. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b00a6ac-396e-4b2a-a042-7dbc0542f64f/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5) with exit command (exit)) Received EOF on stdin. No stderr output.: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:236) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-23 14:50:01,392 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b00a6ac-396e-4b2a-a042-7dbc0542f64f/bin/utaipan-Q6hlc19bkW/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: ERROR: ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b00a6ac-396e-4b2a-a042-7dbc0542f64f/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5) with exit command (exit)) Received EOF on stdin. No stderr output.