./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0663b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/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_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0663b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/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_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/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 7fe2b5be2f106b86d52b1d19807d3cd92c046776d3783d222383057baec9ed94 --- 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 15:42:54,522 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:42:54,524 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:42:54,546 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:42:54,547 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:42:54,548 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:42:54,549 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:42:54,551 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:42:54,553 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:42:54,554 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:42:54,555 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:42:54,556 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:42:54,556 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:42:54,558 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:42:54,559 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:42:54,560 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:42:54,561 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:42:54,562 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:42:54,564 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:42:54,566 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:42:54,568 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:42:54,570 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:42:54,571 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:42:54,572 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:42:54,576 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:42:54,576 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:42:54,577 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:42:54,578 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:42:54,578 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:42:54,580 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:42:54,580 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:42:54,581 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:42:54,582 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:42:54,583 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:42:54,584 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:42:54,585 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:42:54,586 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:42:54,586 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:42:54,587 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:42:54,588 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:42:54,589 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:42:54,590 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-23 15:42:54,614 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:42:54,615 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:42:54,615 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:42:54,616 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:42:54,617 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:42:54,617 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:42:54,617 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:42:54,618 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:42:54,618 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:42:54,618 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:42:54,619 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:42:54,620 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:42:54,620 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:42:54,620 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:42:54,621 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:42:54,621 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:42:54,621 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:42:54,621 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:42:54,622 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:42:54,623 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 15:42:54,623 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:42:54,623 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 15:42:54,624 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:42:54,624 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:42:54,624 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:42:54,624 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:42:54,625 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 15:42:54,626 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:42:54,626 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:42:54,626 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:42:54,627 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:42:54,627 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:42:54,627 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:42:54,628 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:42:54,629 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:42:54,629 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:42:54,629 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:42:54,630 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:42:54,630 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:42:54,630 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:42:54,631 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:42:54,631 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_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7fe2b5be2f106b86d52b1d19807d3cd92c046776d3783d222383057baec9ed94 [2022-11-23 15:42:54,934 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:42:54,958 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:42:54,962 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:42:54,963 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:42:54,964 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:42:54,965 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/float-newlib/double_req_bl_0663b.c [2022-11-23 15:42:57,962 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:42:58,185 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:42:58,185 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/sv-benchmarks/c/float-newlib/double_req_bl_0663b.c [2022-11-23 15:42:58,202 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/bin/utaipan-Q6hlc19bkW/data/3f5a6ec40/bd5cf188d0c34981b25bfa02b52ce593/FLAGf5cf57fea [2022-11-23 15:42:58,216 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/bin/utaipan-Q6hlc19bkW/data/3f5a6ec40/bd5cf188d0c34981b25bfa02b52ce593 [2022-11-23 15:42:58,218 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:42:58,220 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:42:58,221 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:42:58,222 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:42:58,225 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:42:58,226 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:42:58" (1/1) ... [2022-11-23 15:42:58,228 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d40c6ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:58, skipping insertion in model container [2022-11-23 15:42:58,228 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:42:58" (1/1) ... [2022-11-23 15:42:58,236 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:42:58,259 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:42:58,467 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_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/sv-benchmarks/c/float-newlib/double_req_bl_0663b.c[6219,6232] [2022-11-23 15:42:58,471 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:42:58,482 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:42:58,557 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_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/sv-benchmarks/c/float-newlib/double_req_bl_0663b.c[6219,6232] [2022-11-23 15:42:58,561 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:42:58,585 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:42:58,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:58 WrapperNode [2022-11-23 15:42:58,586 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:42:58,588 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:42:58,588 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:42:58,588 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:42:58,595 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:58" (1/1) ... [2022-11-23 15:42:58,622 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:58" (1/1) ... [2022-11-23 15:42:58,653 INFO L138 Inliner]: procedures = 19, calls = 87, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 219 [2022-11-23 15:42:58,661 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:42:58,662 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:42:58,662 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:42:58,662 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:42:58,672 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:58" (1/1) ... [2022-11-23 15:42:58,673 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:58" (1/1) ... [2022-11-23 15:42:58,677 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:58" (1/1) ... [2022-11-23 15:42:58,678 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:58" (1/1) ... [2022-11-23 15:42:58,692 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:58" (1/1) ... [2022-11-23 15:42:58,698 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:58" (1/1) ... [2022-11-23 15:42:58,701 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:58" (1/1) ... [2022-11-23 15:42:58,703 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:58" (1/1) ... [2022-11-23 15:42:58,707 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:42:58,708 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:42:58,709 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:42:58,709 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:42:58,710 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:58" (1/1) ... [2022-11-23 15:42:58,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:42:58,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:42:58,743 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:42:58,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:42:58,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:42:58,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:42:58,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 15:42:58,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-11-23 15:42:58,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 15:42:58,794 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2022-11-23 15:42:58,794 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2022-11-23 15:42:58,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-11-23 15:42:58,794 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2022-11-23 15:42:58,794 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2022-11-23 15:42:58,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:42:58,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:42:58,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 15:42:58,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2022-11-23 15:42:58,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 15:42:58,898 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:42:58,900 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:42:59,571 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:42:59,650 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:42:59,651 INFO L300 CfgBuilder]: Removed 16 assume(true) statements. [2022-11-23 15:42:59,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:42:59 BoogieIcfgContainer [2022-11-23 15:42:59,653 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:42:59,658 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:42:59,658 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:42:59,661 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:42:59,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:42:58" (1/3) ... [2022-11-23 15:42:59,662 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@229e032c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:42:59, skipping insertion in model container [2022-11-23 15:42:59,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:58" (2/3) ... [2022-11-23 15:42:59,665 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@229e032c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:42:59, skipping insertion in model container [2022-11-23 15:42:59,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:42:59" (3/3) ... [2022-11-23 15:42:59,667 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0663b.c [2022-11-23 15:42:59,686 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:42:59,686 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 15:42:59,753 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:42:59,760 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;@633167d1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:42:59,760 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 15:42:59,765 INFO L276 IsEmpty]: Start isEmpty. Operand has 72 states, 64 states have (on average 1.703125) internal successors, (109), 65 states have internal predecessors, (109), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-23 15:42:59,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-23 15:42:59,772 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:42:59,773 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:42:59,773 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:42:59,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:42:59,779 INFO L85 PathProgramCache]: Analyzing trace with hash 2118839983, now seen corresponding path program 1 times [2022-11-23 15:42:59,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:42:59,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263167724] [2022-11-23 15:42:59,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:42:59,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:42:59,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:42:59,953 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 15:42:59,964 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:42:59,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263167724] [2022-11-23 15:42:59,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263167724] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:42:59,965 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:42:59,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:42:59,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328706368] [2022-11-23 15:42:59,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:42:59,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 15:42:59,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:43:00,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 15:43:00,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 15:43:00,015 INFO L87 Difference]: Start difference. First operand has 72 states, 64 states have (on average 1.703125) internal successors, (109), 65 states have internal predecessors, (109), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) 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 15:43:00,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:43:00,097 INFO L93 Difference]: Finished difference Result 142 states and 235 transitions. [2022-11-23 15:43:00,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 15:43:00,100 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 15:43:00,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:43:00,110 INFO L225 Difference]: With dead ends: 142 [2022-11-23 15:43:00,110 INFO L226 Difference]: Without dead ends: 69 [2022-11-23 15:43:00,115 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 15:43:00,121 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:43:00,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 89 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:43:00,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-11-23 15:43:00,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2022-11-23 15:43:00,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 62 states have (on average 1.4193548387096775) internal successors, (88), 62 states have internal predecessors, (88), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-23 15:43:00,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 96 transitions. [2022-11-23 15:43:00,170 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 96 transitions. Word has length 10 [2022-11-23 15:43:00,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:43:00,171 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 96 transitions. [2022-11-23 15:43:00,171 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 15:43:00,171 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 96 transitions. [2022-11-23 15:43:00,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-23 15:43:00,172 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:43:00,172 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:43:00,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:43:00,173 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:43:00,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:43:00,173 INFO L85 PathProgramCache]: Analyzing trace with hash 432971096, now seen corresponding path program 1 times [2022-11-23 15:43:00,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:43:00,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522453399] [2022-11-23 15:43:00,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:43:00,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:43:00,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:43:00,355 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 15:43:00,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:43:00,578 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-23 15:43:00,583 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 15:43:00,585 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-23 15:43:00,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 15:43:00,590 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-23 15:43:00,594 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 15:43:00,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:43:00 BoogieIcfgContainer [2022-11-23 15:43:00,650 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 15:43:00,651 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 15:43:00,651 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 15:43:00,651 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 15:43:00,652 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:42:59" (3/4) ... [2022-11-23 15:43:00,654 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 15:43:00,655 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 15:43:00,655 INFO L158 Benchmark]: Toolchain (without parser) took 2435.47ms. Allocated memory is still 159.4MB. Free memory was 115.5MB in the beginning and 119.6MB in the end (delta: -4.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:43:00,656 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 113.2MB. Free memory is still 87.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:43:00,660 INFO L158 Benchmark]: CACSL2BoogieTranslator took 365.38ms. Allocated memory is still 159.4MB. Free memory was 115.5MB in the beginning and 101.4MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-23 15:43:00,664 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.59ms. Allocated memory is still 159.4MB. Free memory was 100.9MB in the beginning and 98.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:43:00,665 INFO L158 Benchmark]: Boogie Preprocessor took 46.00ms. Allocated memory is still 159.4MB. Free memory was 98.7MB in the beginning and 95.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 15:43:00,666 INFO L158 Benchmark]: RCFGBuilder took 945.03ms. Allocated memory is still 159.4MB. Free memory was 95.5MB in the beginning and 109.0MB in the end (delta: -13.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-23 15:43:00,668 INFO L158 Benchmark]: TraceAbstraction took 992.59ms. Allocated memory is still 159.4MB. Free memory was 108.2MB in the beginning and 119.6MB in the end (delta: -11.4MB). Peak memory consumption was 49.1MB. Max. memory is 16.1GB. [2022-11-23 15:43:00,668 INFO L158 Benchmark]: Witness Printer took 3.83ms. Allocated memory is still 159.4MB. Free memory is still 119.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:43:00,676 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 113.2MB. Free memory is still 87.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 365.38ms. Allocated memory is still 159.4MB. Free memory was 115.5MB in the beginning and 101.4MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.59ms. Allocated memory is still 159.4MB. Free memory was 100.9MB in the beginning and 98.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.00ms. Allocated memory is still 159.4MB. Free memory was 98.7MB in the beginning and 95.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 945.03ms. Allocated memory is still 159.4MB. Free memory was 95.5MB in the beginning and 109.0MB in the end (delta: -13.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 992.59ms. Allocated memory is still 159.4MB. Free memory was 108.2MB in the beginning and 119.6MB in the end (delta: -11.4MB). Peak memory consumption was 49.1MB. Max. memory is 16.1GB. * Witness Printer took 3.83ms. Allocated memory is still 159.4MB. Free memory is still 119.6MB. 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: 262]: 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 164, overapproximation of someUnaryDOUBLEoperation at line 54, overapproximation of bitwiseAnd at line 162, overapproximation of someBinaryArithmeticDOUBLEoperation at line 165, overapproximation of someBinaryDOUBLEComparisonOperation at line 261. Possible FailurePath: [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L62-L64] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L141-L142] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; [L253] double x = 0.0; [L254] double y = __VERIFIER_nondet_double(); [L256] COND TRUE y > 0.0 [L258] CALL, EXPR __ieee754_atan2(y, x) [L145] double z; [L146] __int32_t k, m, hx, hy, ix, iy; [L147] __uint32_t lx, ly; VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, unknown-#in~x-unknown=0, unknown-#in~y-unknown=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, x=0, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, zero_atan2=0] [L150] ieee_double_shape_type ew_u; [L151] ew_u.value = (x) [L152] EXPR ew_u.parts.msw [L152] (hx) = ew_u.parts.msw [L153] EXPR ew_u.parts.lsw [L153] (lx) = ew_u.parts.lsw [L155] ix = hx & 0x7fffffff VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=2146435073, ix=2146435073, lx=-4609434222908669951, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, unknown-#in~x-unknown=0, unknown-#in~y-unknown=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, x=0, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, zero_atan2=0] [L157] ieee_double_shape_type ew_u; [L158] ew_u.value = (y) [L159] EXPR ew_u.parts.msw [L159] (hy) = ew_u.parts.msw [L160] EXPR ew_u.parts.lsw [L160] (ly) = ew_u.parts.lsw [L162] iy = hy & 0x7fffffff VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=2146435073, hy=10, ix=2146435073, iy=0, lx=-4609434222908669951, ly=0, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, unknown-#in~x-unknown=0, unknown-#in~y-unknown=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, x=0, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, zero_atan2=0] [L163-L164] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L165] return x + y; VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=2146435073, hy=10, ix=2146435073, iy=0, lx=-4609434222908669951, ly=0, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, unknown-#in~x-unknown=0, unknown-#in~y-unknown=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, x=0, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, zero_atan2=0] [L258] RET, EXPR __ieee754_atan2(y, x) [L258] double res = __ieee754_atan2(y, x); [L261] COND TRUE res != pi_o_2 VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, res=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, zero_atan2=0] [L262] reach_error() VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, res=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 72 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, 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, 89 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11 IncrementalHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 89 mSDtfsCounter, 11 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=72occurred 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 15:43:00,705 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/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_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0663b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/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_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/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 7fe2b5be2f106b86d52b1d19807d3cd92c046776d3783d222383057baec9ed94 --- 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 15:43:03,136 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:43:03,139 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:43:03,194 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:43:03,194 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:43:03,198 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:43:03,200 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:43:03,204 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:43:03,206 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:43:03,212 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:43:03,213 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:43:03,216 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:43:03,216 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:43:03,218 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:43:03,220 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:43:03,226 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:43:03,227 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:43:03,228 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:43:03,230 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:43:03,235 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:43:03,236 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:43:03,239 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:43:03,240 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:43:03,241 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:43:03,251 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:43:03,251 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:43:03,252 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:43:03,254 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:43:03,254 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:43:03,256 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:43:03,256 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:43:03,257 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:43:03,259 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:43:03,260 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:43:03,261 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:43:03,261 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:43:03,262 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:43:03,262 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:43:03,262 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:43:03,263 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:43:03,264 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:43:03,269 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-11-23 15:43:03,302 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:43:03,303 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:43:03,303 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:43:03,303 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:43:03,304 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:43:03,304 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:43:03,304 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:43:03,304 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:43:03,304 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:43:03,304 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:43:03,305 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:43:03,305 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:43:03,306 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:43:03,306 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 15:43:03,306 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 15:43:03,306 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:43:03,306 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:43:03,307 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:43:03,307 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:43:03,307 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 15:43:03,307 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-23 15:43:03,307 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-23 15:43:03,307 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 15:43:03,308 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:43:03,308 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:43:03,308 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:43:03,308 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:43:03,308 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 15:43:03,309 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:43:03,309 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:43:03,309 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:43:03,309 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:43:03,309 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:43:03,310 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-23 15:43:03,310 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-23 15:43:03,310 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:43:03,310 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:43:03,310 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 15:43:03,311 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_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7fe2b5be2f106b86d52b1d19807d3cd92c046776d3783d222383057baec9ed94 [2022-11-23 15:43:03,721 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:43:03,742 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:43:03,745 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:43:03,746 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:43:03,746 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:43:03,748 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/float-newlib/double_req_bl_0663b.c [2022-11-23 15:43:06,949 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:43:07,216 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:43:07,225 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/sv-benchmarks/c/float-newlib/double_req_bl_0663b.c [2022-11-23 15:43:07,242 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/bin/utaipan-Q6hlc19bkW/data/7e3642189/89a6fb25032a4ddba58a2c8e00ca0773/FLAGe915d5107 [2022-11-23 15:43:07,265 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/bin/utaipan-Q6hlc19bkW/data/7e3642189/89a6fb25032a4ddba58a2c8e00ca0773 [2022-11-23 15:43:07,268 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:43:07,271 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:43:07,273 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:43:07,273 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:43:07,277 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:43:07,278 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:43:07" (1/1) ... [2022-11-23 15:43:07,279 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bd6d076 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:07, skipping insertion in model container [2022-11-23 15:43:07,279 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:43:07" (1/1) ... [2022-11-23 15:43:07,286 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:43:07,317 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:43:07,535 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_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/sv-benchmarks/c/float-newlib/double_req_bl_0663b.c[6219,6232] [2022-11-23 15:43:07,548 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:43:07,565 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:43:07,660 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_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/sv-benchmarks/c/float-newlib/double_req_bl_0663b.c[6219,6232] [2022-11-23 15:43:07,666 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:43:07,690 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:43:07,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:07 WrapperNode [2022-11-23 15:43:07,691 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:43:07,692 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:43:07,692 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:43:07,693 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:43:07,700 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:07" (1/1) ... [2022-11-23 15:43:07,727 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:07" (1/1) ... [2022-11-23 15:43:07,769 INFO L138 Inliner]: procedures = 22, calls = 87, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 220 [2022-11-23 15:43:07,772 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:43:07,773 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:43:07,774 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:43:07,774 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:43:07,783 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:07" (1/1) ... [2022-11-23 15:43:07,783 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:07" (1/1) ... [2022-11-23 15:43:07,788 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:07" (1/1) ... [2022-11-23 15:43:07,789 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:07" (1/1) ... [2022-11-23 15:43:07,819 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:07" (1/1) ... [2022-11-23 15:43:07,825 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:07" (1/1) ... [2022-11-23 15:43:07,827 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:07" (1/1) ... [2022-11-23 15:43:07,829 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:07" (1/1) ... [2022-11-23 15:43:07,834 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:43:07,834 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:43:07,834 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:43:07,835 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:43:07,835 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:07" (1/1) ... [2022-11-23 15:43:07,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:43:07,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:43:07,890 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:43:07,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:43:07,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:43:07,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2022-11-23 15:43:07,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2022-11-23 15:43:07,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-23 15:43:07,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 15:43:07,942 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2022-11-23 15:43:07,942 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2022-11-23 15:43:07,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2022-11-23 15:43:07,943 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2022-11-23 15:43:07,943 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2022-11-23 15:43:07,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-23 15:43:07,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:43:07,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:43:07,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-23 15:43:07,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 15:43:08,087 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:43:08,089 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:43:33,001 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:43:33,009 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:43:33,009 INFO L300 CfgBuilder]: Removed 16 assume(true) statements. [2022-11-23 15:43:33,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:43:33 BoogieIcfgContainer [2022-11-23 15:43:33,012 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:43:33,014 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:43:33,014 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:43:33,018 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:43:33,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:43:07" (1/3) ... [2022-11-23 15:43:33,019 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48c0c633 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:43:33, skipping insertion in model container [2022-11-23 15:43:33,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:07" (2/3) ... [2022-11-23 15:43:33,020 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48c0c633 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:43:33, skipping insertion in model container [2022-11-23 15:43:33,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:43:33" (3/3) ... [2022-11-23 15:43:33,022 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0663b.c [2022-11-23 15:43:33,041 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:43:33,042 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 15:43:33,094 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:43:33,102 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;@1ac0745d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:43:33,102 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 15:43:33,108 INFO L276 IsEmpty]: Start isEmpty. Operand has 88 states, 80 states have (on average 1.675) internal successors, (134), 81 states have internal predecessors, (134), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-23 15:43:33,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-23 15:43:33,118 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:43:33,119 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:43:33,120 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:43:33,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:43:33,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1510954264, now seen corresponding path program 1 times [2022-11-23 15:43:33,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:43:33,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [782356635] [2022-11-23 15:43:33,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:43:33,144 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 15:43:33,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:43:33,145 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/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 15:43:33,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/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 15:43:33,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:43:33,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-23 15:43:33,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:43:33,592 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 15:43:33,593 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:43:33,593 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:43:33,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [782356635] [2022-11-23 15:43:33,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [782356635] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:43:33,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:43:33,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:43:33,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406675284] [2022-11-23 15:43:33,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:43:33,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 15:43:33,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:43:33,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 15:43:33,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 15:43:33,644 INFO L87 Difference]: Start difference. First operand has 88 states, 80 states have (on average 1.675) internal successors, (134), 81 states have internal predecessors, (134), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) 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 15:43:33,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:43:33,694 INFO L93 Difference]: Finished difference Result 173 states and 284 transitions. [2022-11-23 15:43:33,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 15:43:33,696 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 15:43:33,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:43:33,705 INFO L225 Difference]: With dead ends: 173 [2022-11-23 15:43:33,705 INFO L226 Difference]: Without dead ends: 84 [2022-11-23 15:43:33,708 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 15:43:33,712 INFO L413 NwaCegarLoop]: 125 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, 125 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 15:43:33,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:43:33,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2022-11-23 15:43:33,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2022-11-23 15:43:33,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 77 states have (on average 1.4545454545454546) internal successors, (112), 77 states have internal predecessors, (112), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-23 15:43:33,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 120 transitions. [2022-11-23 15:43:33,768 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 120 transitions. Word has length 11 [2022-11-23 15:43:33,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:43:33,769 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 120 transitions. [2022-11-23 15:43:33,769 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 15:43:33,769 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 120 transitions. [2022-11-23 15:43:33,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-23 15:43:33,770 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:43:33,770 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:43:33,784 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/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 15:43:33,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/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 15:43:33,972 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:43:33,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:43:33,973 INFO L85 PathProgramCache]: Analyzing trace with hash 370347393, now seen corresponding path program 1 times [2022-11-23 15:43:33,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:43:33,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [405504827] [2022-11-23 15:43:33,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:43:33,974 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 15:43:33,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:43:33,975 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/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 15:43:33,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/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 15:43:34,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:43:34,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-23 15:43:34,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:43:35,064 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 15:43:36,402 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 18 treesize of output 10 [2022-11-23 15:43:41,281 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 15:43:41,281 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:43:41,281 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:43:41,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [405504827] [2022-11-23 15:43:41,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [405504827] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:43:41,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:43:41,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 15:43:41,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201566789] [2022-11-23 15:43:41,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:43:41,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 15:43:41,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:43:41,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 15:43:41,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=42, Unknown=1, NotChecked=0, Total=56 [2022-11-23 15:43:41,285 INFO L87 Difference]: Start difference. First operand 84 states and 120 transitions. Second operand has 8 states, 8 states have (on average 1.625) internal successors, (13), 8 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 15:43:43,746 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 15:43:53,890 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-23 15:44:02,289 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 15:44:04,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 15:44:06,848 WARN L539 Checker$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 15:44:08,864 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 15:44:10,868 WARN L539 Checker$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 15:44:17,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 15:44:19,592 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 15:44:22,087 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-23 15:44:24,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 15:44:25,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:44:25,491 INFO L93 Difference]: Finished difference Result 141 states and 195 transitions. [2022-11-23 15:44:25,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 15:44:25,493 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 8 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 15:44:25,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:44:25,494 INFO L225 Difference]: With dead ends: 141 [2022-11-23 15:44:25,494 INFO L226 Difference]: Without dead ends: 71 [2022-11-23 15:44:25,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 17.3s TimeCoverageRelationStatistics Valid=52, Invalid=127, Unknown=3, NotChecked=0, Total=182 [2022-11-23 15:44:25,497 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 155 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 13 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:44:25,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 356 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 84 Invalid, 7 Unknown, 0 Unchecked, 32.1s Time] [2022-11-23 15:44:25,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2022-11-23 15:44:25,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 67. [2022-11-23 15:44:25,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 60 states have (on average 1.3166666666666667) internal successors, (79), 60 states have internal predecessors, (79), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-23 15:44:25,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 87 transitions. [2022-11-23 15:44:25,514 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 87 transitions. Word has length 13 [2022-11-23 15:44:25,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:44:25,514 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 87 transitions. [2022-11-23 15:44:25,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 8 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 15:44:25,515 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 87 transitions. [2022-11-23 15:44:25,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-23 15:44:25,516 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:44:25,516 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:44:25,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/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 15:44:25,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/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 15:44:25,736 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:44:25,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:44:25,736 INFO L85 PathProgramCache]: Analyzing trace with hash 639744913, now seen corresponding path program 1 times [2022-11-23 15:44:25,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:44:25,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [986301609] [2022-11-23 15:44:25,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:44:25,737 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 15:44:25,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:44:25,739 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/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 15:44:25,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/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 15:44:26,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:44:26,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-23 15:44:26,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:44:34,009 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 15:44:34,009 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:44:34,010 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:44:34,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [986301609] [2022-11-23 15:44:34,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [986301609] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:44:34,010 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:44:34,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 15:44:34,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385716624] [2022-11-23 15:44:34,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:44:34,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 15:44:34,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:44:34,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 15:44:34,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-23 15:44:34,012 INFO L87 Difference]: Start difference. First operand 67 states and 87 transitions. Second operand has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 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 15:44:36,070 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 15:44:42,680 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-23 15:44:45,717 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-23 15:44:47,725 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-23 15:44:49,729 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-23 15:44:51,754 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-23 15:44:54,008 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-23 15:44:56,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-23 15:44:59,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-23 15:45:00,417 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-23 15:45:02,760 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 15:45:06,920 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:45:07,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-23 15:45:09,301 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-23 15:45:11,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-23 15:45:13,918 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:45:16,182 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-23 15:45:19,186 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.72s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-23 15:45:22,900 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.71s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-23 15:45:26,085 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-23 15:45:29,048 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.96s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-23 15:45:32,181 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-23 15:45:33,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:45:33,907 INFO L93 Difference]: Finished difference Result 115 states and 146 transitions. [2022-11-23 15:45:33,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 15:45:33,917 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 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 16 [2022-11-23 15:45:33,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:45:33,920 INFO L225 Difference]: With dead ends: 115 [2022-11-23 15:45:33,920 INFO L226 Difference]: Without dead ends: 111 [2022-11-23 15:45:33,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-23 15:45:33,922 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 137 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 8 mSolverCounterUnsat, 16 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 53.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 16 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 56.4s IncrementalHoareTripleChecker+Time [2022-11-23 15:45:33,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 328 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 88 Invalid, 16 Unknown, 0 Unchecked, 56.4s Time] [2022-11-23 15:45:33,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2022-11-23 15:45:33,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 90. [2022-11-23 15:45:33,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 80 states have (on average 1.2875) internal successors, (103), 81 states have internal predecessors, (103), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2022-11-23 15:45:33,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 114 transitions. [2022-11-23 15:45:33,938 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 114 transitions. Word has length 16 [2022-11-23 15:45:33,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:45:33,938 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 114 transitions. [2022-11-23 15:45:33,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 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 15:45:33,939 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 114 transitions. [2022-11-23 15:45:33,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-23 15:45:33,940 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:45:33,940 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:45:33,956 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/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 15:45:34,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/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 15:45:34,143 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:45:34,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:45:34,143 INFO L85 PathProgramCache]: Analyzing trace with hash -1087523227, now seen corresponding path program 1 times [2022-11-23 15:45:34,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:45:34,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [566775753] [2022-11-23 15:45:34,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:45:34,144 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 15:45:34,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:45:34,145 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/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 15:45:34,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/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 15:45:34,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:45:34,633 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 15:45:34,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:45:39,711 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 15:45:39,711 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:45:39,711 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:45:39,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [566775753] [2022-11-23 15:45:39,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [566775753] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:45:39,712 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:45:39,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:45:39,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388176905] [2022-11-23 15:45:39,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:45:39,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 15:45:39,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:45:39,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 15:45:39,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:45:39,713 INFO L87 Difference]: Start difference. First operand 90 states and 114 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 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 15:45:45,982 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.72s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-23 15:45:47,987 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-23 15:45:50,006 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-23 15:45:58,698 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:46:01,313 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-23 15:46:03,813 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-23 15:46:06,088 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:46:07,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-23 15:46:10,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.76s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-23 15:46:12,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-23 15:46:14,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-23 15:46:19,193 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.70s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-23 15:46:22,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.22s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-23 15:46:25,428 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-23 15:46:28,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-23 15:46:30,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-23 15:46:30,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:46:30,811 INFO L93 Difference]: Finished difference Result 110 states and 136 transitions. [2022-11-23 15:46:30,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 15:46:30,813 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 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 21 [2022-11-23 15:46:30,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:46:30,814 INFO L225 Difference]: With dead ends: 110 [2022-11-23 15:46:30,815 INFO L226 Difference]: Without dead ends: 106 [2022-11-23 15:46:30,815 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-23 15:46:30,816 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 93 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 0 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 44.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:46:30,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 238 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 83 Invalid, 14 Unknown, 0 Unchecked, 47.1s Time] [2022-11-23 15:46:30,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2022-11-23 15:46:30,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 94. [2022-11-23 15:46:30,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 83 states have (on average 1.2771084337349397) internal successors, (106), 85 states have internal predecessors, (106), 5 states have call successors, (5), 4 states have call predecessors, (5), 5 states have return successors, (7), 4 states have call predecessors, (7), 5 states have call successors, (7) [2022-11-23 15:46:30,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 118 transitions. [2022-11-23 15:46:30,832 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 118 transitions. Word has length 21 [2022-11-23 15:46:30,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:46:30,833 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 118 transitions. [2022-11-23 15:46:30,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 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 15:46:30,833 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 118 transitions. [2022-11-23 15:46:30,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-23 15:46:30,834 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:46:30,834 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:46:30,856 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/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 0 [2022-11-23 15:46:31,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/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 15:46:31,052 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:46:31,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:46:31,053 INFO L85 PathProgramCache]: Analyzing trace with hash -2077959421, now seen corresponding path program 1 times [2022-11-23 15:46:31,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:46:31,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [175746172] [2022-11-23 15:46:31,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:46:31,054 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 15:46:31,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:46:31,055 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/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 15:46:31,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/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 (6)] Waiting until timeout for monitored process [2022-11-23 15:46:31,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:46:31,367 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-23 15:46:31,369 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:46:35,222 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 15:46:35,222 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:46:35,222 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:46:35,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [175746172] [2022-11-23 15:46:35,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [175746172] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:46:35,222 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:46:35,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 15:46:35,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328681256] [2022-11-23 15:46:35,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:46:35,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 15:46:35,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:46:35,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 15:46:35,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-23 15:46:35,225 INFO L87 Difference]: Start difference. First operand 94 states and 118 transitions. Second operand has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 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 15:46:39,675 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-23 15:46:41,770 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-23 15:46:45,482 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result VALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-23 15:46:46,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:46:46,584 INFO L93 Difference]: Finished difference Result 126 states and 155 transitions. [2022-11-23 15:46:46,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 15:46:46,586 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 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 22 [2022-11-23 15:46:46,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:46:46,587 INFO L225 Difference]: With dead ends: 126 [2022-11-23 15:46:46,587 INFO L226 Difference]: Without dead ends: 77 [2022-11-23 15:46:46,588 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-11-23 15:46:46,589 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 151 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2022-11-23 15:46:46,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 327 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 9.3s Time] [2022-11-23 15:46:46,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-11-23 15:46:46,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 75. [2022-11-23 15:46:46,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 68 states have (on average 1.2205882352941178) internal successors, (83), 68 states have internal predecessors, (83), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 15:46:46,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 89 transitions. [2022-11-23 15:46:46,610 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 89 transitions. Word has length 22 [2022-11-23 15:46:46,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:46:46,611 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 89 transitions. [2022-11-23 15:46:46,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 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 15:46:46,611 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 89 transitions. [2022-11-23 15:46:46,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-23 15:46:46,612 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:46:46,612 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:46:46,633 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/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 (6)] Forceful destruction successful, exit code 0 [2022-11-23 15:46:46,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/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 15:46:46,816 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:46:46,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:46:46,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1388850208, now seen corresponding path program 1 times [2022-11-23 15:46:46,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:46:46,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1596818653] [2022-11-23 15:46:46,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:46:46,817 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 15:46:46,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:46:46,818 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/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 15:46:46,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/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 (7)] Waiting until timeout for monitored process [2022-11-23 15:46:47,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:46:47,403 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-23 15:46:47,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:46:48,011 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 15:46:49,084 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 15:46:52,943 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 15:46:52,943 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:46:52,943 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:46:52,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1596818653] [2022-11-23 15:46:52,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1596818653] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:46:52,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:46:52,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 15:46:52,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25772013] [2022-11-23 15:46:52,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:46:52,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 15:46:52,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:46:52,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 15:46:52,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-23 15:46:52,949 INFO L87 Difference]: Start difference. First operand 75 states and 89 transitions. Second operand has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 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 15:46:58,092 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 15:47:04,390 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-23 15:47:08,247 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 15:47:13,281 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 15:47:15,881 WARN L539 Checker$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 15:47:18,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 15:47:18,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:47:18,306 INFO L93 Difference]: Finished difference Result 79 states and 92 transitions. [2022-11-23 15:47:18,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 15:47:18,307 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 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 23 [2022-11-23 15:47:18,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:47:18,308 INFO L225 Difference]: With dead ends: 79 [2022-11-23 15:47:18,308 INFO L226 Difference]: Without dead ends: 64 [2022-11-23 15:47:18,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 9.2s TimeCoverageRelationStatistics Valid=47, Invalid=108, Unknown=1, NotChecked=0, Total=156 [2022-11-23 15:47:18,309 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 69 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 8 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.9s IncrementalHoareTripleChecker+Time [2022-11-23 15:47:18,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 327 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 45 Invalid, 4 Unknown, 0 Unchecked, 18.9s Time] [2022-11-23 15:47:18,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-11-23 15:47:18,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2022-11-23 15:47:18,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 57 states have (on average 1.1754385964912282) internal successors, (67), 57 states have internal predecessors, (67), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 15:47:18,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 73 transitions. [2022-11-23 15:47:18,321 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 73 transitions. Word has length 23 [2022-11-23 15:47:18,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:47:18,321 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 73 transitions. [2022-11-23 15:47:18,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 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 15:47:18,336 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 73 transitions. [2022-11-23 15:47:18,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 15:47:18,338 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:47:18,338 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:47:18,360 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/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 (7)] Forceful destruction successful, exit code 0 [2022-11-23 15:47:18,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/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 15:47:18,547 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:47:18,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:47:18,548 INFO L85 PathProgramCache]: Analyzing trace with hash 658370937, now seen corresponding path program 1 times [2022-11-23 15:47:18,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:47:18,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2028703845] [2022-11-23 15:47:18,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:47:18,548 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 15:47:18,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:47:18,549 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/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 15:47:18,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/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 (8)] Waiting until timeout for monitored process [2022-11-23 15:47:19,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/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 15:47:19,506 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_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/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 (8) 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_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/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 (8) 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 15:47:19,510 INFO L158 Benchmark]: Toolchain (without parser) took 252238.70ms. Allocated memory was 73.4MB in the beginning and 100.7MB in the end (delta: 27.3MB). Free memory was 49.0MB in the beginning and 64.4MB in the end (delta: -15.4MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. [2022-11-23 15:47:19,510 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 73.4MB. Free memory is still 50.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:47:19,510 INFO L158 Benchmark]: CACSL2BoogieTranslator took 418.81ms. Allocated memory is still 73.4MB. Free memory was 48.9MB in the beginning and 33.5MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-23 15:47:19,510 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.98ms. Allocated memory is still 73.4MB. Free memory was 33.5MB in the beginning and 31.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:47:19,511 INFO L158 Benchmark]: Boogie Preprocessor took 60.85ms. Allocated memory is still 73.4MB. Free memory was 31.0MB in the beginning and 51.0MB in the end (delta: -20.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 15:47:19,511 INFO L158 Benchmark]: RCFGBuilder took 25177.35ms. Allocated memory was 73.4MB in the beginning and 100.7MB in the end (delta: 27.3MB). Free memory was 51.0MB in the beginning and 65.1MB in the end (delta: -14.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-23 15:47:19,511 INFO L158 Benchmark]: TraceAbstraction took 226495.31ms. Allocated memory is still 100.7MB. Free memory was 64.2MB in the beginning and 64.4MB in the end (delta: -191.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:47:19,513 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### [2022-11-23 15:47:19,508 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/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 (8)] Forceful destruction successful, exit code 139 --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 73.4MB. Free memory is still 50.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 418.81ms. Allocated memory is still 73.4MB. Free memory was 48.9MB in the beginning and 33.5MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.98ms. Allocated memory is still 73.4MB. Free memory was 33.5MB in the beginning and 31.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.85ms. Allocated memory is still 73.4MB. Free memory was 31.0MB in the beginning and 51.0MB in the end (delta: -20.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 25177.35ms. Allocated memory was 73.4MB in the beginning and 100.7MB in the end (delta: 27.3MB). Free memory was 51.0MB in the beginning and 65.1MB in the end (delta: -14.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 226495.31ms. Allocated memory is still 100.7MB. Free memory was 64.2MB in the beginning and 64.4MB in the end (delta: -191.7kB). There was no memory consumed. 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_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/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 (8) 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_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/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 (8) 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 15:47:19,744 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2022-11-23 15:47:19,835 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 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_04b3c1f9-6f8e-4c34-9aaf-caece3df9857/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 (8) with exit command (exit)) Received EOF on stdin. No stderr output.