./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/filter2_iterated.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_ea153db7-52eb-4a84-a932-2c8e33bfb49b/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea153db7-52eb-4a84-a932-2c8e33bfb49b/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea153db7-52eb-4a84-a932-2c8e33bfb49b/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea153db7-52eb-4a84-a932-2c8e33bfb49b/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/filter2_iterated.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea153db7-52eb-4a84-a932-2c8e33bfb49b/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea153db7-52eb-4a84-a932-2c8e33bfb49b/bin/utaipan-verify-SwPr7d2a91 --witnessprinter.witness.filename witness --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 1b2a34283d37096850c6fa7d7933fe07674b3fa81a7da8c770f866e152d89627 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-25 00:04:57,937 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-25 00:04:58,010 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea153db7-52eb-4a84-a932-2c8e33bfb49b/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-25 00:04:58,016 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-25 00:04:58,017 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-25 00:04:58,043 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-25 00:04:58,044 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-25 00:04:58,045 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-25 00:04:58,046 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-25 00:04:58,046 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-25 00:04:58,047 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-25 00:04:58,048 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-25 00:04:58,048 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-25 00:04:58,049 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-25 00:04:58,049 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-25 00:04:58,050 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-25 00:04:58,051 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-25 00:04:58,051 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-25 00:04:58,052 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-25 00:04:58,053 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-25 00:04:58,053 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-25 00:04:58,054 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-25 00:04:58,055 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-25 00:04:58,055 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-25 00:04:58,056 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-25 00:04:58,056 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-25 00:04:58,057 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-25 00:04:58,058 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-25 00:04:58,058 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-25 00:04:58,058 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-25 00:04:58,059 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-25 00:04:58,059 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-25 00:04:58,060 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-25 00:04:58,060 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-25 00:04:58,061 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-25 00:04:58,061 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-25 00:04:58,062 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-25 00:04:58,062 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:04:58,063 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-25 00:04:58,063 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-25 00:04:58,063 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-25 00:04:58,064 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-25 00:04:58,064 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-25 00:04:58,065 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-25 00:04:58,065 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-25 00:04:58,066 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-25 00:04:58,066 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-25 00:04:58,067 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea153db7-52eb-4a84-a932-2c8e33bfb49b/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea153db7-52eb-4a84-a932-2c8e33bfb49b/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b2a34283d37096850c6fa7d7933fe07674b3fa81a7da8c770f866e152d89627 [2023-11-25 00:04:58,303 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-25 00:04:58,328 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-25 00:04:58,330 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-25 00:04:58,332 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-25 00:04:58,337 INFO L274 PluginConnector]: CDTParser initialized [2023-11-25 00:04:58,338 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea153db7-52eb-4a84-a932-2c8e33bfb49b/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/float-benchs/filter2_iterated.c [2023-11-25 00:05:01,534 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-25 00:05:01,739 INFO L384 CDTParser]: Found 1 translation units. [2023-11-25 00:05:01,739 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea153db7-52eb-4a84-a932-2c8e33bfb49b/sv-benchmarks/c/float-benchs/filter2_iterated.c [2023-11-25 00:05:01,748 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea153db7-52eb-4a84-a932-2c8e33bfb49b/bin/utaipan-verify-SwPr7d2a91/data/e74daaaa9/9570011d7b914b7589038670ad787496/FLAGbd93948d4 [2023-11-25 00:05:01,764 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea153db7-52eb-4a84-a932-2c8e33bfb49b/bin/utaipan-verify-SwPr7d2a91/data/e74daaaa9/9570011d7b914b7589038670ad787496 [2023-11-25 00:05:01,767 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-25 00:05:01,769 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-25 00:05:01,773 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-25 00:05:01,774 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-25 00:05:01,780 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-25 00:05:01,781 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:05:01" (1/1) ... [2023-11-25 00:05:01,783 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26c63e82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:01, skipping insertion in model container [2023-11-25 00:05:01,783 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:05:01" (1/1) ... [2023-11-25 00:05:01,821 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-25 00:05:02,010 WARN L240 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_ea153db7-52eb-4a84-a932-2c8e33bfb49b/sv-benchmarks/c/float-benchs/filter2_iterated.c[447,460] [2023-11-25 00:05:02,041 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:05:02,059 INFO L202 MainTranslator]: Completed pre-run [2023-11-25 00:05:02,072 WARN L240 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_ea153db7-52eb-4a84-a932-2c8e33bfb49b/sv-benchmarks/c/float-benchs/filter2_iterated.c[447,460] [2023-11-25 00:05:02,089 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:05:02,108 INFO L206 MainTranslator]: Completed translation [2023-11-25 00:05:02,109 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:02 WrapperNode [2023-11-25 00:05:02,109 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-25 00:05:02,110 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-25 00:05:02,111 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-25 00:05:02,111 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-25 00:05:02,119 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:02" (1/1) ... [2023-11-25 00:05:02,129 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:02" (1/1) ... [2023-11-25 00:05:02,158 INFO L138 Inliner]: procedures = 17, calls = 53, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 108 [2023-11-25 00:05:02,158 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-25 00:05:02,159 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-25 00:05:02,159 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-25 00:05:02,159 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-25 00:05:02,170 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:02" (1/1) ... [2023-11-25 00:05:02,170 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:02" (1/1) ... [2023-11-25 00:05:02,174 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:02" (1/1) ... [2023-11-25 00:05:02,174 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:02" (1/1) ... [2023-11-25 00:05:02,186 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:02" (1/1) ... [2023-11-25 00:05:02,190 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:02" (1/1) ... [2023-11-25 00:05:02,191 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:02" (1/1) ... [2023-11-25 00:05:02,193 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:02" (1/1) ... [2023-11-25 00:05:02,196 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-25 00:05:02,197 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-25 00:05:02,198 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-25 00:05:02,198 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-25 00:05:02,199 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:02" (1/1) ... [2023-11-25 00:05:02,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:05:02,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea153db7-52eb-4a84-a932-2c8e33bfb49b/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:05:02,237 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea153db7-52eb-4a84-a932-2c8e33bfb49b/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-25 00:05:02,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea153db7-52eb-4a84-a932-2c8e33bfb49b/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-25 00:05:02,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-25 00:05:02,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-25 00:05:02,281 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-25 00:05:02,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-25 00:05:02,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-25 00:05:02,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-25 00:05:02,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2023-11-25 00:05:02,382 INFO L241 CfgBuilder]: Building ICFG [2023-11-25 00:05:02,384 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-25 00:05:02,555 INFO L282 CfgBuilder]: Performing block encoding [2023-11-25 00:05:02,811 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-25 00:05:02,811 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-25 00:05:02,813 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:05:02 BoogieIcfgContainer [2023-11-25 00:05:02,813 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-25 00:05:02,816 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-25 00:05:02,817 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-25 00:05:02,820 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-25 00:05:02,820 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 12:05:01" (1/3) ... [2023-11-25 00:05:02,821 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@340089d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:05:02, skipping insertion in model container [2023-11-25 00:05:02,821 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:02" (2/3) ... [2023-11-25 00:05:02,822 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@340089d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:05:02, skipping insertion in model container [2023-11-25 00:05:02,822 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:05:02" (3/3) ... [2023-11-25 00:05:02,823 INFO L112 eAbstractionObserver]: Analyzing ICFG filter2_iterated.c [2023-11-25 00:05:02,855 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-25 00:05:02,855 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-25 00:05:02,921 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-25 00:05:02,929 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=LoopHeads, 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;@48382a32, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-25 00:05:02,929 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-25 00:05:02,933 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 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) [2023-11-25 00:05:02,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-25 00:05:02,940 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:05:02,941 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-25 00:05:02,941 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-25 00:05:02,947 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:05:02,947 INFO L85 PathProgramCache]: Analyzing trace with hash 2691121, now seen corresponding path program 1 times [2023-11-25 00:05:02,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:05:02,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443703370] [2023-11-25 00:05:02,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:05:02,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:05:03,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-25 00:05:03,558 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-25 00:05:03,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-25 00:05:03,895 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-25 00:05:03,897 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-25 00:05:03,899 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-25 00:05:03,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-25 00:05:03,906 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-25 00:05:03,910 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-25 00:05:03,946 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 12:05:03 BoogieIcfgContainer [2023-11-25 00:05:03,946 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-25 00:05:03,949 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-25 00:05:03,949 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-25 00:05:03,950 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-25 00:05:03,950 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:05:02" (3/4) ... [2023-11-25 00:05:03,955 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-25 00:05:03,956 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-25 00:05:03,958 INFO L158 Benchmark]: Toolchain (without parser) took 2188.37ms. Allocated memory is still 140.5MB. Free memory was 97.1MB in the beginning and 79.8MB in the end (delta: 17.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-25 00:05:03,959 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 111.1MB. Free memory is still 57.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-25 00:05:03,960 INFO L158 Benchmark]: CACSL2BoogieTranslator took 336.39ms. Allocated memory is still 140.5MB. Free memory was 97.1MB in the beginning and 85.4MB in the end (delta: 11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-25 00:05:03,961 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.96ms. Allocated memory is still 140.5MB. Free memory was 85.4MB in the beginning and 83.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-25 00:05:03,962 INFO L158 Benchmark]: Boogie Preprocessor took 37.37ms. Allocated memory is still 140.5MB. Free memory was 83.3MB in the beginning and 81.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-25 00:05:03,967 INFO L158 Benchmark]: RCFGBuilder took 616.17ms. Allocated memory is still 140.5MB. Free memory was 81.8MB in the beginning and 54.6MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-11-25 00:05:03,969 INFO L158 Benchmark]: TraceAbstraction took 1130.26ms. Allocated memory is still 140.5MB. Free memory was 54.0MB in the beginning and 79.8MB in the end (delta: -25.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-25 00:05:03,970 INFO L158 Benchmark]: Witness Printer took 7.62ms. Allocated memory is still 140.5MB. Free memory was 79.8MB in the beginning and 79.8MB in the end (delta: 2.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-25 00:05:03,979 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 111.1MB. Free memory is still 57.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 336.39ms. Allocated memory is still 140.5MB. Free memory was 97.1MB in the beginning and 85.4MB in the end (delta: 11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.96ms. Allocated memory is still 140.5MB. Free memory was 85.4MB in the beginning and 83.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.37ms. Allocated memory is still 140.5MB. Free memory was 83.3MB in the beginning and 81.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 616.17ms. Allocated memory is still 140.5MB. Free memory was 81.8MB in the beginning and 54.6MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 1130.26ms. Allocated memory is still 140.5MB. Free memory was 54.0MB in the beginning and 79.8MB in the end (delta: -25.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 7.62ms. Allocated memory is still 140.5MB. Free memory was 79.8MB in the beginning and 79.8MB in the end (delta: 2.6kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 9]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 63, overapproximation of to_real at line 58, overapproximation of someBinaryArithmeticDOUBLEoperation at line 62. Possible FailurePath: [L13] BOOLEAN INIT1, INIT2; [L14] float X, P; [L18] static float E[2], S[2]; [L38] static float E2[2], S2[2]; [L58] X = 0 [L59] INIT1 = TRUE [L60] INIT2 = TRUE VAL [E2={6:0}, E={4:0}, INIT1=1, INIT2=1, P=0, S2={7:0}, S={5:0}] [L61] COND TRUE \read(TRUE) [L62] X = 0.98*X + 85. [L63] COND TRUE X >= -400. && X <= 400. [L64] CALL filter1() [L19] COND TRUE \read(INIT1) [L20] S[0] = X [L21] P = X [L22] E[0] = X [L23] E[1] = 0. [L24] S[1] = 0. [L64] RET filter1() [L65] X = X + 100. [L66] INIT1 = FALSE [L74] CALL __VERIFIER_assert(X >= -1155. && X <= 4251.) [L9] COND TRUE !(cond) VAL [E2={6:0}, E={4:0}, INIT1=0, INIT2=1, P=0, S2={7:0}, S={5:0}, \old(cond)=0, cond=0] [L9] reach_error() VAL [E2={6:0}, E={4:0}, INIT1=0, INIT2=1, P=0, S2={7:0}, S={5:0}, \old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 [2023-11-25 00:05:04,014 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea153db7-52eb-4a84-a932-2c8e33bfb49b/bin/utaipan-verify-SwPr7d2a91/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_ea153db7-52eb-4a84-a932-2c8e33bfb49b/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea153db7-52eb-4a84-a932-2c8e33bfb49b/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea153db7-52eb-4a84-a932-2c8e33bfb49b/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea153db7-52eb-4a84-a932-2c8e33bfb49b/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/filter2_iterated.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea153db7-52eb-4a84-a932-2c8e33bfb49b/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea153db7-52eb-4a84-a932-2c8e33bfb49b/bin/utaipan-verify-SwPr7d2a91 --witnessprinter.witness.filename witness --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 1b2a34283d37096850c6fa7d7933fe07674b3fa81a7da8c770f866e152d89627 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-25 00:05:06,857 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-25 00:05:07,001 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea153db7-52eb-4a84-a932-2c8e33bfb49b/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-25 00:05:07,011 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-25 00:05:07,012 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-25 00:05:07,065 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-25 00:05:07,066 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-25 00:05:07,066 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-25 00:05:07,068 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-25 00:05:07,073 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-25 00:05:07,074 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-25 00:05:07,075 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-25 00:05:07,075 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-25 00:05:07,077 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-25 00:05:07,078 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-25 00:05:07,078 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-25 00:05:07,080 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-25 00:05:07,080 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-25 00:05:07,081 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-25 00:05:07,082 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-25 00:05:07,083 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-25 00:05:07,083 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-25 00:05:07,084 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-25 00:05:07,085 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-25 00:05:07,085 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-25 00:05:07,086 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-25 00:05:07,086 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-25 00:05:07,087 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-25 00:05:07,087 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-25 00:05:07,088 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-25 00:05:07,089 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-25 00:05:07,090 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-25 00:05:07,090 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-25 00:05:07,091 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-25 00:05:07,091 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:05:07,092 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-25 00:05:07,092 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-25 00:05:07,092 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-25 00:05:07,093 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-25 00:05:07,094 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-25 00:05:07,094 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-25 00:05:07,095 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-25 00:05:07,095 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-25 00:05:07,096 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-25 00:05:07,096 INFO L153 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_ea153db7-52eb-4a84-a932-2c8e33bfb49b/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea153db7-52eb-4a84-a932-2c8e33bfb49b/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b2a34283d37096850c6fa7d7933fe07674b3fa81a7da8c770f866e152d89627 [2023-11-25 00:05:07,569 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-25 00:05:07,601 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-25 00:05:07,605 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-25 00:05:07,607 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-25 00:05:07,607 INFO L274 PluginConnector]: CDTParser initialized [2023-11-25 00:05:07,609 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea153db7-52eb-4a84-a932-2c8e33bfb49b/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/float-benchs/filter2_iterated.c [2023-11-25 00:05:10,876 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-25 00:05:11,184 INFO L384 CDTParser]: Found 1 translation units. [2023-11-25 00:05:11,186 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea153db7-52eb-4a84-a932-2c8e33bfb49b/sv-benchmarks/c/float-benchs/filter2_iterated.c [2023-11-25 00:05:11,195 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea153db7-52eb-4a84-a932-2c8e33bfb49b/bin/utaipan-verify-SwPr7d2a91/data/ac8816c62/f02ef8c908e44f21a4ac1cac236bae78/FLAG12becb417 [2023-11-25 00:05:11,213 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea153db7-52eb-4a84-a932-2c8e33bfb49b/bin/utaipan-verify-SwPr7d2a91/data/ac8816c62/f02ef8c908e44f21a4ac1cac236bae78 [2023-11-25 00:05:11,219 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-25 00:05:11,221 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-25 00:05:11,225 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-25 00:05:11,225 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-25 00:05:11,231 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-25 00:05:11,231 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:05:11" (1/1) ... [2023-11-25 00:05:11,232 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e36956e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:11, skipping insertion in model container [2023-11-25 00:05:11,233 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:05:11" (1/1) ... [2023-11-25 00:05:11,265 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-25 00:05:11,461 WARN L240 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_ea153db7-52eb-4a84-a932-2c8e33bfb49b/sv-benchmarks/c/float-benchs/filter2_iterated.c[447,460] [2023-11-25 00:05:11,511 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:05:11,542 INFO L202 MainTranslator]: Completed pre-run [2023-11-25 00:05:11,561 WARN L240 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_ea153db7-52eb-4a84-a932-2c8e33bfb49b/sv-benchmarks/c/float-benchs/filter2_iterated.c[447,460] [2023-11-25 00:05:11,601 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:05:11,626 INFO L206 MainTranslator]: Completed translation [2023-11-25 00:05:11,627 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:11 WrapperNode [2023-11-25 00:05:11,627 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-25 00:05:11,629 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-25 00:05:11,629 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-25 00:05:11,629 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-25 00:05:11,637 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:11" (1/1) ... [2023-11-25 00:05:11,662 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:11" (1/1) ... [2023-11-25 00:05:11,697 INFO L138 Inliner]: procedures = 18, calls = 53, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 109 [2023-11-25 00:05:11,698 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-25 00:05:11,699 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-25 00:05:11,699 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-25 00:05:11,699 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-25 00:05:11,708 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:11" (1/1) ... [2023-11-25 00:05:11,708 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:11" (1/1) ... [2023-11-25 00:05:11,713 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:11" (1/1) ... [2023-11-25 00:05:11,713 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:11" (1/1) ... [2023-11-25 00:05:11,726 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:11" (1/1) ... [2023-11-25 00:05:11,729 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:11" (1/1) ... [2023-11-25 00:05:11,731 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:11" (1/1) ... [2023-11-25 00:05:11,733 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:11" (1/1) ... [2023-11-25 00:05:11,737 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-25 00:05:11,738 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-25 00:05:11,738 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-25 00:05:11,739 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-25 00:05:11,739 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:11" (1/1) ... [2023-11-25 00:05:11,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:05:11,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea153db7-52eb-4a84-a932-2c8e33bfb49b/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:05:11,791 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea153db7-52eb-4a84-a932-2c8e33bfb49b/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-25 00:05:11,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea153db7-52eb-4a84-a932-2c8e33bfb49b/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-25 00:05:11,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-25 00:05:11,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2023-11-25 00:05:11,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-25 00:05:11,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2023-11-25 00:05:11,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-25 00:05:11,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-25 00:05:11,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2023-11-25 00:05:11,992 INFO L241 CfgBuilder]: Building ICFG [2023-11-25 00:05:11,995 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-25 00:05:28,401 WARN L249 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea153db7-52eb-4a84-a932-2c8e33bfb49b/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2023-11-25 00:05:28,403 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea153db7-52eb-4a84-a932-2c8e33bfb49b/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:281) 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.logic.Util.checkSat(Util.java:61) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Statements2TransFormula.constructTransFormula(Statements2TransFormula.java:221) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Statements2TransFormula.getTransFormula(Statements2TransFormula.java:175) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Statements2TransFormula.statementSequence(Statements2TransFormula.java:735) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.util.TransFormulaAdder.addTransitionFormulas(TransFormulaAdder.java:119) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.buildProcedureCfgFromImplementation(CfgBuilder.java:742) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:271) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:166) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 25 more [2023-11-25 00:05:28,409 INFO L158 Benchmark]: Toolchain (without parser) took 17186.86ms. Allocated memory is still 94.4MB. Free memory was 70.3MB in the beginning and 66.7MB in the end (delta: 3.6MB). Peak memory consumption was 27.4MB. Max. memory is 16.1GB. [2023-11-25 00:05:28,412 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea153db7-52eb-4a84-a932-2c8e33bfb49b/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 [2023-11-25 00:05:28,413 INFO L158 Benchmark]: CDTParser took 1.40ms. Allocated memory is still 62.9MB. Free memory is still 38.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-25 00:05:28,415 INFO L158 Benchmark]: CACSL2BoogieTranslator took 402.73ms. Allocated memory is still 94.4MB. Free memory was 70.1MB in the beginning and 57.6MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-25 00:05:28,416 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.33ms. Allocated memory is still 94.4MB. Free memory was 57.6MB in the beginning and 55.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-25 00:05:28,417 INFO L158 Benchmark]: Boogie Preprocessor took 38.94ms. Allocated memory is still 94.4MB. Free memory was 55.4MB in the beginning and 53.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-25 00:05:28,418 INFO L158 Benchmark]: RCFGBuilder took 16668.84ms. Allocated memory is still 94.4MB. Free memory was 53.3MB in the beginning and 66.7MB in the end (delta: -13.4MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. [2023-11-25 00:05:28,428 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.40ms. Allocated memory is still 62.9MB. Free memory is still 38.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 402.73ms. Allocated memory is still 94.4MB. Free memory was 70.1MB in the beginning and 57.6MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.33ms. Allocated memory is still 94.4MB. Free memory was 57.6MB in the beginning and 55.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.94ms. Allocated memory is still 94.4MB. Free memory was 55.4MB in the beginning and 53.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 16668.84ms. Allocated memory is still 94.4MB. Free memory was 53.3MB in the beginning and 66.7MB in the end (delta: -13.4MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea153db7-52eb-4a84-a932-2c8e33bfb49b/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea153db7-52eb-4a84-a932-2c8e33bfb49b/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea153db7-52eb-4a84-a932-2c8e33bfb49b/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory")