./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1072c.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_2c7f64d8-0991-4242-a43a-3a7f8cb297e1/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7f64d8-0991-4242-a43a-3a7f8cb297e1/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7f64d8-0991-4242-a43a-3a7f8cb297e1/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7f64d8-0991-4242-a43a-3a7f8cb297e1/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1072c.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7f64d8-0991-4242-a43a-3a7f8cb297e1/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7f64d8-0991-4242-a43a-3a7f8cb297e1/bin/utaipan-verify-t7M7D8N6sZ --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 04c436006742f36e09d723f85653028f787f4ee63bf5ff6f9895b53f3ce3aea9 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:01:16,347 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:01:16,420 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7f64d8-0991-4242-a43a-3a7f8cb297e1/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 05:01:16,426 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:01:16,427 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:01:16,456 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:01:16,457 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:01:16,458 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:01:16,459 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:01:16,460 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:01:16,460 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:01:16,461 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:01:16,462 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:01:16,463 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:01:16,463 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:01:16,464 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:01:16,465 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:01:16,465 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:01:16,466 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:01:16,467 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:01:16,468 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:01:16,469 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:01:16,470 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:01:16,470 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:01:16,471 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:01:16,472 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:01:16,472 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:01:16,473 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:01:16,474 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:01:16,474 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:01:16,475 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:01:16,475 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:01:16,476 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:01:16,476 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:01:16,477 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:01:16,477 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:01:16,478 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:01:16,478 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:01:16,478 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:01:16,479 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:01:16,479 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:01:16,480 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:01:16,480 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:01:16,481 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:01:16,481 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:01:16,481 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_2c7f64d8-0991-4242-a43a-3a7f8cb297e1/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7f64d8-0991-4242-a43a-3a7f8cb297e1/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 04c436006742f36e09d723f85653028f787f4ee63bf5ff6f9895b53f3ce3aea9 [2023-11-19 05:01:16,808 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:01:16,841 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:01:16,844 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:01:16,845 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:01:16,847 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:01:16,849 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7f64d8-0991-4242-a43a-3a7f8cb297e1/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/float-newlib/float_req_bl_1072c.c [2023-11-19 05:01:20,175 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:01:20,450 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:01:20,450 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7f64d8-0991-4242-a43a-3a7f8cb297e1/sv-benchmarks/c/float-newlib/float_req_bl_1072c.c [2023-11-19 05:01:20,460 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7f64d8-0991-4242-a43a-3a7f8cb297e1/bin/utaipan-verify-t7M7D8N6sZ/data/5875beaa5/7e974dc3907f48e8bb03e5e4a4eac4d1/FLAG688cb14fa [2023-11-19 05:01:20,476 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7f64d8-0991-4242-a43a-3a7f8cb297e1/bin/utaipan-verify-t7M7D8N6sZ/data/5875beaa5/7e974dc3907f48e8bb03e5e4a4eac4d1 [2023-11-19 05:01:20,479 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:01:20,480 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:01:20,482 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:01:20,482 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:01:20,488 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:01:20,489 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:01:20" (1/1) ... [2023-11-19 05:01:20,490 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7643e19e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:01:20, skipping insertion in model container [2023-11-19 05:01:20,490 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:01:20" (1/1) ... [2023-11-19 05:01:20,514 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:01:20,699 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_2c7f64d8-0991-4242-a43a-3a7f8cb297e1/sv-benchmarks/c/float-newlib/float_req_bl_1072c.c[1571,1584] [2023-11-19 05:01:20,705 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:01:20,718 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:01:20,742 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_2c7f64d8-0991-4242-a43a-3a7f8cb297e1/sv-benchmarks/c/float-newlib/float_req_bl_1072c.c[1571,1584] [2023-11-19 05:01:20,743 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:01:20,758 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:01:20,759 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:01:20 WrapperNode [2023-11-19 05:01:20,759 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:01:20,761 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:01:20,761 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:01:20,761 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:01:20,770 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:01:20" (1/1) ... [2023-11-19 05:01:20,789 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:01:20" (1/1) ... [2023-11-19 05:01:20,814 INFO L138 Inliner]: procedures = 16, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 127 [2023-11-19 05:01:20,817 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:01:20,818 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:01:20,818 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:01:20,818 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:01:20,843 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:01:20" (1/1) ... [2023-11-19 05:01:20,844 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:01:20" (1/1) ... [2023-11-19 05:01:20,858 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:01:20" (1/1) ... [2023-11-19 05:01:20,859 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:01:20" (1/1) ... [2023-11-19 05:01:20,889 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:01:20" (1/1) ... [2023-11-19 05:01:20,904 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:01:20" (1/1) ... [2023-11-19 05:01:20,906 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:01:20" (1/1) ... [2023-11-19 05:01:20,908 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:01:20" (1/1) ... [2023-11-19 05:01:20,918 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:01:20,919 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:01:20,919 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:01:20,919 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:01:20,920 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:01:20" (1/1) ... [2023-11-19 05:01:20,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:01:20,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7f64d8-0991-4242-a43a-3a7f8cb297e1/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:01:20,962 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7f64d8-0991-4242-a43a-3a7f8cb297e1/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:01:20,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7f64d8-0991-4242-a43a-3a7f8cb297e1/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:01:21,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:01:21,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:01:21,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 05:01:21,000 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-19 05:01:21,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 05:01:21,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-19 05:01:21,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:01:21,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:01:21,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 05:01:21,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 05:01:21,095 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:01:21,098 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:01:21,401 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:01:21,558 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:01:21,558 INFO L302 CfgBuilder]: Removed 8 assume(true) statements. [2023-11-19 05:01:21,562 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:01:21 BoogieIcfgContainer [2023-11-19 05:01:21,563 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:01:21,565 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:01:21,565 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:01:21,573 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:01:21,574 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:01:20" (1/3) ... [2023-11-19 05:01:21,575 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14f10f57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:01:21, skipping insertion in model container [2023-11-19 05:01:21,575 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:01:20" (2/3) ... [2023-11-19 05:01:21,576 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14f10f57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:01:21, skipping insertion in model container [2023-11-19 05:01:21,577 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:01:21" (3/3) ... [2023-11-19 05:01:21,578 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1072c.c [2023-11-19 05:01:21,594 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:01:21,595 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:01:21,642 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:01:21,649 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;@4e0fda49, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:01:21,650 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:01:21,654 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 20 states have (on average 1.7) internal successors, (34), 21 states have internal predecessors, (34), 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) [2023-11-19 05:01:21,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 05:01:21,661 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:01:21,662 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:01:21,663 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:01:21,669 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:01:21,669 INFO L85 PathProgramCache]: Analyzing trace with hash 2016493728, now seen corresponding path program 1 times [2023-11-19 05:01:21,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:01:21,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623282123] [2023-11-19 05:01:21,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:01:21,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:01:21,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:01:21,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:01:21,850 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:01:21,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623282123] [2023-11-19 05:01:21,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623282123] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:01:21,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:01:21,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:01:21,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608725468] [2023-11-19 05:01:21,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:01:21,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 05:01:21,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:01:21,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 05:01:21,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 05:01:21,898 INFO L87 Difference]: Start difference. First operand has 22 states, 20 states have (on average 1.7) internal successors, (34), 21 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:01:21,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:01:21,940 INFO L93 Difference]: Finished difference Result 43 states and 67 transitions. [2023-11-19 05:01:21,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 05:01:21,944 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-11-19 05:01:21,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:01:21,954 INFO L225 Difference]: With dead ends: 43 [2023-11-19 05:01:21,958 INFO L226 Difference]: Without dead ends: 20 [2023-11-19 05:01:21,962 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 [2023-11-19 05:01:21,968 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:01:21,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:01:21,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2023-11-19 05:01:22,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2023-11-19 05:01:22,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 19 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) [2023-11-19 05:01:22,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2023-11-19 05:01:22,012 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 9 [2023-11-19 05:01:22,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:01:22,013 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2023-11-19 05:01:22,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:01:22,014 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2023-11-19 05:01:22,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 05:01:22,015 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:01:22,015 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:01:22,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 05:01:22,016 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:01:22,017 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:01:22,017 INFO L85 PathProgramCache]: Analyzing trace with hash -581391069, now seen corresponding path program 1 times [2023-11-19 05:01:22,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:01:22,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521020813] [2023-11-19 05:01:22,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:01:22,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:01:22,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:01:22,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:01:22,591 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:01:22,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521020813] [2023-11-19 05:01:22,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521020813] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:01:22,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:01:22,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:01:22,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638536998] [2023-11-19 05:01:22,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:01:22,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:01:22,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:01:22,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:01:22,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:01:22,598 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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) [2023-11-19 05:01:22,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:01:22,664 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2023-11-19 05:01:22,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:01:22,665 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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 [2023-11-19 05:01:22,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:01:22,666 INFO L225 Difference]: With dead ends: 28 [2023-11-19 05:01:22,666 INFO L226 Difference]: Without dead ends: 20 [2023-11-19 05:01:22,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:01:22,670 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 9 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:01:22,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 21 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:01:22,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2023-11-19 05:01:22,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2023-11-19 05:01:22,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 19 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) [2023-11-19 05:01:22,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2023-11-19 05:01:22,685 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 10 [2023-11-19 05:01:22,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:01:22,686 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2023-11-19 05:01:22,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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) [2023-11-19 05:01:22,687 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2023-11-19 05:01:22,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 05:01:22,688 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:01:22,689 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:01:22,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 05:01:22,690 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:01:22,693 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:01:22,693 INFO L85 PathProgramCache]: Analyzing trace with hash -788442266, now seen corresponding path program 1 times [2023-11-19 05:01:22,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:01:22,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976432771] [2023-11-19 05:01:22,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:01:22,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:01:22,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:01:22,744 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 05:01:22,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:01:22,822 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 05:01:22,822 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 05:01:22,824 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 05:01:22,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 05:01:22,832 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-19 05:01:22,837 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 05:01:22,862 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short14 could not be translated [2023-11-19 05:01:22,885 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:01:22 BoogieIcfgContainer [2023-11-19 05:01:22,885 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 05:01:22,887 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 05:01:22,888 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 05:01:22,888 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 05:01:22,890 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:01:21" (3/4) ... [2023-11-19 05:01:22,893 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 05:01:22,898 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 05:01:22,899 INFO L158 Benchmark]: Toolchain (without parser) took 2419.09ms. Allocated memory is still 148.9MB. Free memory was 109.2MB in the beginning and 45.1MB in the end (delta: 64.1MB). Peak memory consumption was 61.9MB. Max. memory is 16.1GB. [2023-11-19 05:01:22,900 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 102.8MB. Free memory was 75.3MB in the beginning and 75.2MB in the end (delta: 91.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:01:22,901 INFO L158 Benchmark]: CACSL2BoogieTranslator took 277.89ms. Allocated memory is still 148.9MB. Free memory was 108.5MB in the beginning and 98.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 05:01:22,911 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.25ms. Allocated memory is still 148.9MB. Free memory was 98.1MB in the beginning and 96.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:01:22,912 INFO L158 Benchmark]: Boogie Preprocessor took 100.27ms. Allocated memory is still 148.9MB. Free memory was 96.0MB in the beginning and 120.4MB in the end (delta: -24.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:01:22,914 INFO L158 Benchmark]: RCFGBuilder took 644.11ms. Allocated memory is still 148.9MB. Free memory was 120.0MB in the beginning and 95.5MB in the end (delta: 24.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-19 05:01:22,918 INFO L158 Benchmark]: TraceAbstraction took 1320.27ms. Allocated memory is still 148.9MB. Free memory was 94.8MB in the beginning and 45.9MB in the end (delta: 48.9MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2023-11-19 05:01:22,918 INFO L158 Benchmark]: Witness Printer took 11.40ms. Allocated memory is still 148.9MB. Free memory was 45.9MB in the beginning and 45.1MB in the end (delta: 705.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:01:22,921 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 102.8MB. Free memory was 75.3MB in the beginning and 75.2MB in the end (delta: 91.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 277.89ms. Allocated memory is still 148.9MB. Free memory was 108.5MB in the beginning and 98.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.25ms. Allocated memory is still 148.9MB. Free memory was 98.1MB in the beginning and 96.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 100.27ms. Allocated memory is still 148.9MB. Free memory was 96.0MB in the beginning and 120.4MB in the end (delta: -24.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 644.11ms. Allocated memory is still 148.9MB. Free memory was 120.0MB in the beginning and 95.5MB in the end (delta: 24.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1320.27ms. Allocated memory is still 148.9MB. Free memory was 94.8MB in the beginning and 45.9MB in the end (delta: 48.9MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * Witness Printer took 11.40ms. Allocated memory is still 148.9MB. Free memory was 45.9MB in the beginning and 45.1MB in the end (delta: 705.2kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short14 could not be translated - 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: 69]: 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 someBinaryFLOATComparisonOperation at line 68, overapproximation of bitwiseAnd at line 22. Possible FailurePath: [L64] float x = 0.0f; [L65] CALL, EXPR trunc_float(x) [L15] __int32_t signbit, w, exponent_less_127; VAL [\old(x)=0, x=0] [L17] ieee_float_shape_type gf_u; [L18] EXPR gf_u.value = (x) [L19] EXPR gf_u.word [L19] EXPR (w) = gf_u.word [L16-L20] { ieee_float_shape_type gf_u; gf_u.value = (x); (w) = gf_u.word; } VAL [\old(x)=0, w=-880803841, x=0] [L21] signbit = w & 0x80000000 [L22] EXPR w & 0x7f800000 [L22] exponent_less_127 = ((w & 0x7f800000) >> 23) - 127 [L23] COND FALSE !(exponent_less_127 < 23) VAL [\old(x)=0, exponent_less_127=23, signbit=-2147483648, w=-880803841, x=0] [L39] COND FALSE !(exponent_less_127 == 255) VAL [\old(x)=0, exponent_less_127=23, signbit=-2147483648, w=-880803841, x=0] [L42] return x; VAL [\old(x)=0, \result=0, exponent_less_127=23, signbit=-2147483648, w=-880803841, x=0] [L65] RET, EXPR trunc_float(x) [L65] float res = trunc_float(x); [L68] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [res=0, x=0] [L68] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L69] reach_error() VAL [res=0, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 41 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 17 IncrementalHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 33 mSDtfsCounter, 17 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 21 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 05:01:22,971 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7f64d8-0991-4242-a43a-3a7f8cb297e1/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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_2c7f64d8-0991-4242-a43a-3a7f8cb297e1/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7f64d8-0991-4242-a43a-3a7f8cb297e1/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7f64d8-0991-4242-a43a-3a7f8cb297e1/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7f64d8-0991-4242-a43a-3a7f8cb297e1/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1072c.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7f64d8-0991-4242-a43a-3a7f8cb297e1/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7f64d8-0991-4242-a43a-3a7f8cb297e1/bin/utaipan-verify-t7M7D8N6sZ --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 04c436006742f36e09d723f85653028f787f4ee63bf5ff6f9895b53f3ce3aea9 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:01:26,006 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:01:26,140 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7f64d8-0991-4242-a43a-3a7f8cb297e1/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-19 05:01:26,151 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:01:26,152 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:01:26,211 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:01:26,213 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:01:26,214 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:01:26,215 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:01:26,220 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:01:26,221 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:01:26,221 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:01:26,222 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:01:26,224 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:01:26,224 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:01:26,224 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:01:26,226 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:01:26,226 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:01:26,227 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:01:26,228 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:01:26,228 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:01:26,229 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:01:26,229 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:01:26,230 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:01:26,230 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 05:01:26,231 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 05:01:26,231 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 05:01:26,232 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:01:26,232 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:01:26,233 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:01:26,234 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:01:26,235 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 05:01:26,235 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:01:26,235 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:01:26,236 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:01:26,236 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:01:26,236 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:01:26,237 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 05:01:26,237 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 05:01:26,238 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:01:26,238 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:01:26,239 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:01:26,239 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_2c7f64d8-0991-4242-a43a-3a7f8cb297e1/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7f64d8-0991-4242-a43a-3a7f8cb297e1/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 04c436006742f36e09d723f85653028f787f4ee63bf5ff6f9895b53f3ce3aea9 [2023-11-19 05:01:26,671 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:01:26,701 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:01:26,707 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:01:26,709 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:01:26,710 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:01:26,712 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7f64d8-0991-4242-a43a-3a7f8cb297e1/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/float-newlib/float_req_bl_1072c.c [2023-11-19 05:01:30,091 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:01:30,420 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:01:30,421 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7f64d8-0991-4242-a43a-3a7f8cb297e1/sv-benchmarks/c/float-newlib/float_req_bl_1072c.c [2023-11-19 05:01:30,435 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7f64d8-0991-4242-a43a-3a7f8cb297e1/bin/utaipan-verify-t7M7D8N6sZ/data/98b77fe68/aa72c9f340bc4cbd9be70614b0e620b8/FLAG016b7ab55 [2023-11-19 05:01:30,457 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7f64d8-0991-4242-a43a-3a7f8cb297e1/bin/utaipan-verify-t7M7D8N6sZ/data/98b77fe68/aa72c9f340bc4cbd9be70614b0e620b8 [2023-11-19 05:01:30,463 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:01:30,465 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:01:30,467 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:01:30,467 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:01:30,473 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:01:30,474 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:01:30" (1/1) ... [2023-11-19 05:01:30,476 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68485d25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:01:30, skipping insertion in model container [2023-11-19 05:01:30,476 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:01:30" (1/1) ... [2023-11-19 05:01:30,503 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:01:30,775 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_2c7f64d8-0991-4242-a43a-3a7f8cb297e1/sv-benchmarks/c/float-newlib/float_req_bl_1072c.c[1571,1584] [2023-11-19 05:01:30,782 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:01:30,808 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:01:30,859 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_2c7f64d8-0991-4242-a43a-3a7f8cb297e1/sv-benchmarks/c/float-newlib/float_req_bl_1072c.c[1571,1584] [2023-11-19 05:01:30,862 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:01:30,891 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:01:30,891 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:01:30 WrapperNode [2023-11-19 05:01:30,891 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:01:30,893 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:01:30,894 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:01:30,894 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:01:30,903 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:01:30" (1/1) ... [2023-11-19 05:01:30,933 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:01:30" (1/1) ... [2023-11-19 05:01:30,981 INFO L138 Inliner]: procedures = 19, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 93 [2023-11-19 05:01:30,982 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:01:30,984 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:01:30,984 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:01:30,984 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:01:30,997 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:01:30" (1/1) ... [2023-11-19 05:01:30,997 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:01:30" (1/1) ... [2023-11-19 05:01:31,011 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:01:30" (1/1) ... [2023-11-19 05:01:31,012 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:01:30" (1/1) ... [2023-11-19 05:01:31,034 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:01:30" (1/1) ... [2023-11-19 05:01:31,045 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:01:30" (1/1) ... [2023-11-19 05:01:31,050 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:01:30" (1/1) ... [2023-11-19 05:01:31,059 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:01:30" (1/1) ... [2023-11-19 05:01:31,066 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:01:31,067 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:01:31,069 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:01:31,070 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:01:31,071 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:01:30" (1/1) ... [2023-11-19 05:01:31,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:01:31,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7f64d8-0991-4242-a43a-3a7f8cb297e1/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:01:31,112 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7f64d8-0991-4242-a43a-3a7f8cb297e1/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:01:31,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7f64d8-0991-4242-a43a-3a7f8cb297e1/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:01:31,163 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:01:31,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 05:01:31,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 05:01:31,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2023-11-19 05:01:31,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-19 05:01:31,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:01:31,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:01:31,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2023-11-19 05:01:31,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-19 05:01:31,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 05:01:31,324 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:01:31,327 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:01:31,611 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:01:31,619 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:01:31,620 INFO L302 CfgBuilder]: Removed 8 assume(true) statements. [2023-11-19 05:01:31,624 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:01:31 BoogieIcfgContainer [2023-11-19 05:01:31,624 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:01:31,627 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:01:31,628 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:01:31,632 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:01:31,632 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:01:30" (1/3) ... [2023-11-19 05:01:31,633 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@adaf8f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:01:31, skipping insertion in model container [2023-11-19 05:01:31,633 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:01:30" (2/3) ... [2023-11-19 05:01:31,634 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@adaf8f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:01:31, skipping insertion in model container [2023-11-19 05:01:31,634 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:01:31" (3/3) ... [2023-11-19 05:01:31,636 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1072c.c [2023-11-19 05:01:31,659 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:01:31,660 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:01:31,723 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:01:31,732 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;@7a7347ae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:01:31,733 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:01:31,739 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 23 states have (on average 1.608695652173913) internal successors, (37), 24 states have internal predecessors, (37), 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) [2023-11-19 05:01:31,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 05:01:31,747 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:01:31,748 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:01:31,749 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:01:31,758 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:01:31,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1945115165, now seen corresponding path program 1 times [2023-11-19 05:01:31,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:01:31,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1074420338] [2023-11-19 05:01:31,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:01:31,776 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 [2023-11-19 05:01:31,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7f64d8-0991-4242-a43a-3a7f8cb297e1/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:01:31,782 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7f64d8-0991-4242-a43a-3a7f8cb297e1/bin/utaipan-verify-t7M7D8N6sZ/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) [2023-11-19 05:01:31,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7f64d8-0991-4242-a43a-3a7f8cb297e1/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 05:01:31,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:01:31,949 INFO L262 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 05:01:31,954 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:01:31,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:01:31,983 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:01:31,984 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:01:31,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1074420338] [2023-11-19 05:01:31,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1074420338] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:01:31,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:01:31,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:01:31,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604354330] [2023-11-19 05:01:31,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:01:32,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 05:01:32,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:01:32,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 05:01:32,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 05:01:32,056 INFO L87 Difference]: Start difference. First operand has 25 states, 23 states have (on average 1.608695652173913) internal successors, (37), 24 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:01:32,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:01:32,082 INFO L93 Difference]: Finished difference Result 48 states and 72 transitions. [2023-11-19 05:01:32,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 05:01:32,086 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 [2023-11-19 05:01:32,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:01:32,097 INFO L225 Difference]: With dead ends: 48 [2023-11-19 05:01:32,097 INFO L226 Difference]: Without dead ends: 22 [2023-11-19 05:01:32,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 05:01:32,108 INFO L413 NwaCegarLoop]: 28 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, 28 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 [2023-11-19 05:01:32,110 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:01:32,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2023-11-19 05:01:32,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2023-11-19 05:01:32,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 21 states have internal predecessors, (25), 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) [2023-11-19 05:01:32,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2023-11-19 05:01:32,157 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 10 [2023-11-19 05:01:32,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:01:32,158 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2023-11-19 05:01:32,159 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) [2023-11-19 05:01:32,159 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2023-11-19 05:01:32,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 05:01:32,161 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:01:32,161 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:01:32,172 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7f64d8-0991-4242-a43a-3a7f8cb297e1/bin/utaipan-verify-t7M7D8N6sZ/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)] Forceful destruction successful, exit code 0 [2023-11-19 05:01:32,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7f64d8-0991-4242-a43a-3a7f8cb297e1/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 05:01:32,367 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:01:32,368 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:01:32,369 INFO L85 PathProgramCache]: Analyzing trace with hash -390192032, now seen corresponding path program 1 times [2023-11-19 05:01:32,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:01:32,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [891101964] [2023-11-19 05:01:32,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:01:32,375 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 [2023-11-19 05:01:32,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7f64d8-0991-4242-a43a-3a7f8cb297e1/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:01:32,377 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7f64d8-0991-4242-a43a-3a7f8cb297e1/bin/utaipan-verify-t7M7D8N6sZ/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) [2023-11-19 05:01:32,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7f64d8-0991-4242-a43a-3a7f8cb297e1/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 05:01:32,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:01:32,497 INFO L262 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-19 05:01:32,502 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:01:32,684 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-19 05:01:32,694 INFO L378 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 29 treesize of output 13 [2023-11-19 05:01:32,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:01:32,801 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:01:32,802 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:01:32,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [891101964] [2023-11-19 05:01:32,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [891101964] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:01:32,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:01:32,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 05:01:32,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968905360] [2023-11-19 05:01:32,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:01:32,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 05:01:32,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:01:32,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 05:01:32,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:01:32,807 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 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) [2023-11-19 05:01:32,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:01:32,976 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2023-11-19 05:01:32,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 05:01:32,978 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 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 [2023-11-19 05:01:32,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:01:32,979 INFO L225 Difference]: With dead ends: 32 [2023-11-19 05:01:32,979 INFO L226 Difference]: Without dead ends: 19 [2023-11-19 05:01:32,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 05:01:32,981 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 16 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:01:32,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 44 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:01:32,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2023-11-19 05:01:32,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2023-11-19 05:01:32,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.0555555555555556) internal successors, (19), 18 states have internal predecessors, (19), 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) [2023-11-19 05:01:32,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2023-11-19 05:01:32,990 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 11 [2023-11-19 05:01:32,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:01:32,991 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2023-11-19 05:01:32,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 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) [2023-11-19 05:01:32,992 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2023-11-19 05:01:32,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-19 05:01:32,993 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:01:32,993 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:01:32,998 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7f64d8-0991-4242-a43a-3a7f8cb297e1/bin/utaipan-verify-t7M7D8N6sZ/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)] Ended with exit code 0 [2023-11-19 05:01:33,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7f64d8-0991-4242-a43a-3a7f8cb297e1/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 05:01:33,197 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:01:33,198 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:01:33,198 INFO L85 PathProgramCache]: Analyzing trace with hash -675711906, now seen corresponding path program 1 times [2023-11-19 05:01:33,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:01:33,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [766895253] [2023-11-19 05:01:33,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:01:33,199 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 [2023-11-19 05:01:33,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7f64d8-0991-4242-a43a-3a7f8cb297e1/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:01:33,203 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7f64d8-0991-4242-a43a-3a7f8cb297e1/bin/utaipan-verify-t7M7D8N6sZ/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) [2023-11-19 05:01:33,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7f64d8-0991-4242-a43a-3a7f8cb297e1/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 05:01:33,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:01:33,329 INFO L262 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-19 05:01:33,335 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:01:33,381 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-19 05:01:33,557 INFO L378 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 49 treesize of output 25 [2023-11-19 05:01:33,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:01:33,655 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:01:33,655 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:01:33,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [766895253] [2023-11-19 05:01:33,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [766895253] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:01:33,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:01:33,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 05:01:33,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243908127] [2023-11-19 05:01:33,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:01:33,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 05:01:33,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:01:33,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 05:01:33,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-19 05:01:33,659 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 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) [2023-11-19 05:01:33,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:01:33,952 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2023-11-19 05:01:33,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 05:01:33,953 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 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 14 [2023-11-19 05:01:33,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:01:33,966 INFO L225 Difference]: With dead ends: 22 [2023-11-19 05:01:33,967 INFO L226 Difference]: Without dead ends: 19 [2023-11-19 05:01:33,967 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-11-19 05:01:33,968 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 25 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:01:33,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 41 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:01:33,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2023-11-19 05:01:33,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2023-11-19 05:01:33,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.0) internal successors, (18), 18 states have internal predecessors, (18), 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) [2023-11-19 05:01:33,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2023-11-19 05:01:33,983 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 14 [2023-11-19 05:01:33,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:01:33,985 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2023-11-19 05:01:33,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 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) [2023-11-19 05:01:33,986 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2023-11-19 05:01:33,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-19 05:01:33,987 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:01:33,989 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:01:33,995 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7f64d8-0991-4242-a43a-3a7f8cb297e1/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 05:01:34,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7f64d8-0991-4242-a43a-3a7f8cb297e1/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 05:01:34,192 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:01:34,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:01:34,193 INFO L85 PathProgramCache]: Analyzing trace with hash 438125939, now seen corresponding path program 1 times [2023-11-19 05:01:34,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:01:34,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [490448945] [2023-11-19 05:01:34,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:01:34,195 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 [2023-11-19 05:01:34,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7f64d8-0991-4242-a43a-3a7f8cb297e1/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:01:34,206 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7f64d8-0991-4242-a43a-3a7f8cb297e1/bin/utaipan-verify-t7M7D8N6sZ/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) [2023-11-19 05:01:34,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7f64d8-0991-4242-a43a-3a7f8cb297e1/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 05:01:34,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:01:34,337 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-19 05:01:34,341 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:01:34,378 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-19 05:01:34,580 INFO L349 Elim1Store]: treesize reduction 19, result has 26.9 percent of original size [2023-11-19 05:01:34,580 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 26 [2023-11-19 05:01:34,984 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-19 05:01:34,984 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 30 [2023-11-19 05:01:35,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:01:35,227 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:01:35,227 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:01:35,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [490448945] [2023-11-19 05:01:35,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [490448945] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:01:35,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:01:35,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-19 05:01:35,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081813073] [2023-11-19 05:01:35,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:01:35,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-19 05:01:35,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:01:35,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-19 05:01:35,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2023-11-19 05:01:35,231 INFO L87 Difference]: Start difference. First operand 19 states and 18 transitions. Second operand has 12 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 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) [2023-11-19 05:01:36,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:01:36,298 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2023-11-19 05:01:36,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-19 05:01:36,299 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 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 18 [2023-11-19 05:01:36,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:01:36,299 INFO L225 Difference]: With dead ends: 19 [2023-11-19 05:01:36,299 INFO L226 Difference]: Without dead ends: 0 [2023-11-19 05:01:36,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2023-11-19 05:01:36,301 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 29 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 05:01:36,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 44 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 05:01:36,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-19 05:01:36,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-19 05:01:36,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:01:36,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-19 05:01:36,304 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2023-11-19 05:01:36,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:01:36,304 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 05:01:36,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 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) [2023-11-19 05:01:36,305 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-19 05:01:36,305 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 05:01:36,309 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 05:01:36,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7f64d8-0991-4242-a43a-3a7f8cb297e1/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 05:01:36,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7f64d8-0991-4242-a43a-3a7f8cb297e1/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 05:01:36,515 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-19 05:01:36,693 INFO L899 garLoopResultBuilder]: For program point L23(lines 23 41) no Hoare annotation was computed. [2023-11-19 05:01:36,693 INFO L899 garLoopResultBuilder]: For program point L23-1(lines 23 41) no Hoare annotation was computed. [2023-11-19 05:01:36,693 INFO L899 garLoopResultBuilder]: For program point L48-1(lines 48 52) no Hoare annotation was computed. [2023-11-19 05:01:36,694 INFO L895 garLoopResultBuilder]: At program point L48-2(lines 48 52) the Hoare annotation is: (and (exists ((|v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12| (_ BitVec 32)) (|v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_10| (_ BitVec 32))) (let ((.cse1 (select (select |#memory_int| |v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_10|) (_ bv0 32))) (.cse0 (select (select |#memory_int| |v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12|) (_ bv0 32)))) (and (= (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)) (_ +zero 8 24)) (= (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1)) |ULTIMATE.start_trunc_float_#res#1|) (= .cse1 (bvand .cse0 (_ bv2147483648 32)))))) |ULTIMATE.start_main_#t~short10#1| (exists ((|v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12| (_ BitVec 32)) (|v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_10| (_ BitVec 32))) (let ((.cse3 (select (select |#memory_int| |v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_10|) (_ bv0 32))) (.cse2 (select (select |#memory_int| |v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12|) (_ bv0 32)))) (and (= (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2)) (_ +zero 8 24)) (= (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3)) |ULTIMATE.start___signbit_float_~x#1|) (= .cse3 (bvand .cse2 (_ bv2147483648 32)))))) (exists ((|v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12| (_ BitVec 32)) (|v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_10| (_ BitVec 32))) (let ((.cse5 (select (select |#memory_int| |v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_10|) (_ bv0 32))) (.cse4 (select (select |#memory_int| |v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12|) (_ bv0 32)))) (and (= (fp ((_ extract 31 31) .cse4) ((_ extract 30 23) .cse4) ((_ extract 22 0) .cse4)) (_ +zero 8 24)) (= |ULTIMATE.start_main_~res~0#1| (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5))) (= .cse5 (bvand .cse4 (_ bv2147483648 32))))))) [2023-11-19 05:01:36,695 INFO L899 garLoopResultBuilder]: For program point L48-3(lines 48 52) no Hoare annotation was computed. [2023-11-19 05:01:36,695 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 57 74) no Hoare annotation was computed. [2023-11-19 05:01:36,695 INFO L899 garLoopResultBuilder]: For program point L69(line 69) no Hoare annotation was computed. [2023-11-19 05:01:36,695 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-19 05:01:36,695 INFO L899 garLoopResultBuilder]: For program point L32-1(lines 32 36) no Hoare annotation was computed. [2023-11-19 05:01:36,695 INFO L895 garLoopResultBuilder]: At program point L32-2(lines 32 36) the Hoare annotation is: false [2023-11-19 05:01:36,696 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-19 05:01:36,696 INFO L899 garLoopResultBuilder]: For program point L24(lines 24 37) no Hoare annotation was computed. [2023-11-19 05:01:36,696 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 69) no Hoare annotation was computed. [2023-11-19 05:01:36,696 INFO L899 garLoopResultBuilder]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2023-11-19 05:01:36,696 INFO L895 garLoopResultBuilder]: At program point L16-2(lines 16 20) the Hoare annotation is: (= |ULTIMATE.start_trunc_float_~x#1| (_ +zero 8 24)) [2023-11-19 05:01:36,697 INFO L899 garLoopResultBuilder]: For program point L16-3(lines 16 20) no Hoare annotation was computed. [2023-11-19 05:01:36,697 INFO L899 garLoopResultBuilder]: For program point trunc_float_returnLabel#1(lines 14 43) no Hoare annotation was computed. [2023-11-19 05:01:36,697 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-19 05:01:36,697 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-19 05:01:36,697 INFO L899 garLoopResultBuilder]: For program point L26-1(lines 26 30) no Hoare annotation was computed. [2023-11-19 05:01:36,697 INFO L899 garLoopResultBuilder]: For program point __signbit_float_returnLabel#1(lines 45 55) no Hoare annotation was computed. [2023-11-19 05:01:36,698 INFO L895 garLoopResultBuilder]: At program point L26-2(lines 26 30) the Hoare annotation is: (and (exists ((v_subst_1 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) v_subst_1) ((_ extract 30 23) v_subst_1) ((_ extract 22 0) v_subst_1)) (_ +zero 8 24)) (= (bvashr (bvand v_subst_1 (_ bv2139095040 32)) (_ bv23 32)) (bvadd |ULTIMATE.start_trunc_float_~exponent_less_127~0#1| (_ bv127 32))))) (exists ((|v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12| (_ BitVec 32))) (let ((.cse0 (select (select |#memory_int| |v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12|) (_ bv0 32)))) (and (= |ULTIMATE.start_trunc_float_~signbit~0#1| (bvand .cse0 (_ bv2147483648 32))) (= (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)) (_ +zero 8 24))))) (= |ULTIMATE.start_trunc_float_~x#1| (_ +zero 8 24)) (exists ((|v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12| (_ BitVec 32))) (let ((.cse1 (select (select |#memory_int| |v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12|) (_ bv0 32)))) (and (= .cse1 |ULTIMATE.start_trunc_float_~w~0#1|) (= (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1)) (_ +zero 8 24)))))) [2023-11-19 05:01:36,698 INFO L899 garLoopResultBuilder]: For program point L39(lines 39 40) no Hoare annotation was computed. [2023-11-19 05:01:36,698 INFO L899 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2023-11-19 05:01:36,698 INFO L899 garLoopResultBuilder]: For program point L68-2(lines 68 71) no Hoare annotation was computed. [2023-11-19 05:01:36,702 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-19 05:01:36,705 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 05:01:36,720 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12 : bv32, v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_10 : bv32 :: (~fp~32(#memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32][31:31], #memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32][30:23], #memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32][22:0]) == ~Pluszero~32() && ~fp~32(#memory_int[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_10][0bv32][31:31], #memory_int[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_10][0bv32][30:23], #memory_int[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_10][0bv32][22:0]) == #res) && #memory_int[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_10][0bv32] == ~bvand~32(#memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32], 2147483648bv32)) could not be translated [2023-11-19 05:01:36,721 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short10 could not be translated [2023-11-19 05:01:36,722 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12 : bv32, v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_10 : bv32 :: (~fp~32(#memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32][31:31], #memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32][30:23], #memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32][22:0]) == ~Pluszero~32() && ~fp~32(#memory_int[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_10][0bv32][31:31], #memory_int[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_10][0bv32][30:23], #memory_int[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_10][0bv32][22:0]) == ~x) && #memory_int[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_10][0bv32] == ~bvand~32(#memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32], 2147483648bv32)) could not be translated [2023-11-19 05:01:36,722 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12 : bv32, v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_10 : bv32 :: (~fp~32(#memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32][31:31], #memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32][30:23], #memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32][22:0]) == ~Pluszero~32() && ~res~0 == ~fp~32(#memory_int[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_10][0bv32][31:31], #memory_int[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_10][0bv32][30:23], #memory_int[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_10][0bv32][22:0])) && #memory_int[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_10][0bv32] == ~bvand~32(#memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32], 2147483648bv32)) could not be translated [2023-11-19 05:01:36,724 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_subst_1 : bv32 :: ~fp~32(v_subst_1[31:31], v_subst_1[30:23], v_subst_1[22:0]) == ~Pluszero~32() && ~bvashr~32(~bvand~32(v_subst_1, 2139095040bv32), 23bv32) == ~bvadd~32(~exponent_less_127~0, 127bv32)) could not be translated [2023-11-19 05:01:36,724 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12 : bv32 :: ~signbit~0 == ~bvand~32(#memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32], 2147483648bv32) && ~fp~32(#memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32][31:31], #memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32][30:23], #memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32][22:0]) == ~Pluszero~32()) could not be translated [2023-11-19 05:01:36,725 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~Pluszero~32 [2023-11-19 05:01:36,725 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12 : bv32 :: #memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32] == ~w~0 && ~fp~32(#memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32][31:31], #memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32][30:23], #memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32][22:0]) == ~Pluszero~32()) could not be translated [2023-11-19 05:01:36,726 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~Pluszero~32 [2023-11-19 05:01:36,726 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:01:36 BoogieIcfgContainer [2023-11-19 05:01:36,726 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 05:01:36,727 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 05:01:36,727 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 05:01:36,727 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 05:01:36,728 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:01:31" (3/4) ... [2023-11-19 05:01:36,730 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 05:01:36,741 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-11-19 05:01:36,742 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-11-19 05:01:36,742 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 05:01:36,742 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 05:01:36,856 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7f64d8-0991-4242-a43a-3a7f8cb297e1/bin/utaipan-verify-t7M7D8N6sZ/witness.graphml [2023-11-19 05:01:36,857 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7f64d8-0991-4242-a43a-3a7f8cb297e1/bin/utaipan-verify-t7M7D8N6sZ/witness.yml [2023-11-19 05:01:36,857 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 05:01:36,858 INFO L158 Benchmark]: Toolchain (without parser) took 6392.87ms. Allocated memory was 79.7MB in the beginning and 113.2MB in the end (delta: 33.6MB). Free memory was 55.6MB in the beginning and 66.3MB in the end (delta: -10.6MB). Peak memory consumption was 24.1MB. Max. memory is 16.1GB. [2023-11-19 05:01:36,858 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 79.7MB. Free memory was 56.3MB in the beginning and 56.2MB in the end (delta: 107.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:01:36,859 INFO L158 Benchmark]: CACSL2BoogieTranslator took 425.28ms. Allocated memory is still 79.7MB. Free memory was 55.4MB in the beginning and 44.0MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 05:01:36,860 INFO L158 Benchmark]: Boogie Procedure Inliner took 88.89ms. Allocated memory is still 79.7MB. Free memory was 43.9MB in the beginning and 42.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:01:36,860 INFO L158 Benchmark]: Boogie Preprocessor took 82.59ms. Allocated memory is still 79.7MB. Free memory was 42.2MB in the beginning and 40.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:01:36,861 INFO L158 Benchmark]: RCFGBuilder took 556.98ms. Allocated memory was 79.7MB in the beginning and 113.2MB in the end (delta: 33.6MB). Free memory was 40.6MB in the beginning and 82.1MB in the end (delta: -41.5MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. [2023-11-19 05:01:36,861 INFO L158 Benchmark]: TraceAbstraction took 5098.92ms. Allocated memory is still 113.2MB. Free memory was 81.7MB in the beginning and 71.4MB in the end (delta: 10.3MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. [2023-11-19 05:01:36,862 INFO L158 Benchmark]: Witness Printer took 130.20ms. Allocated memory is still 113.2MB. Free memory was 70.5MB in the beginning and 66.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 05:01:36,864 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 79.7MB. Free memory was 56.3MB in the beginning and 56.2MB in the end (delta: 107.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 425.28ms. Allocated memory is still 79.7MB. Free memory was 55.4MB in the beginning and 44.0MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 88.89ms. Allocated memory is still 79.7MB. Free memory was 43.9MB in the beginning and 42.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 82.59ms. Allocated memory is still 79.7MB. Free memory was 42.2MB in the beginning and 40.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 556.98ms. Allocated memory was 79.7MB in the beginning and 113.2MB in the end (delta: 33.6MB). Free memory was 40.6MB in the beginning and 82.1MB in the end (delta: -41.5MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. * TraceAbstraction took 5098.92ms. Allocated memory is still 113.2MB. Free memory was 81.7MB in the beginning and 71.4MB in the end (delta: 10.3MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. * Witness Printer took 130.20ms. Allocated memory is still 113.2MB. Free memory was 70.5MB in the beginning and 66.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12 : bv32, v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_10 : bv32 :: (~fp~32(#memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32][31:31], #memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32][30:23], #memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32][22:0]) == ~Pluszero~32() && ~fp~32(#memory_int[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_10][0bv32][31:31], #memory_int[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_10][0bv32][30:23], #memory_int[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_10][0bv32][22:0]) == #res) && #memory_int[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_10][0bv32] == ~bvand~32(#memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32], 2147483648bv32)) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12 : bv32, v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_10 : bv32 :: (~fp~32(#memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32][31:31], #memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32][30:23], #memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32][22:0]) == ~Pluszero~32() && ~fp~32(#memory_int[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_10][0bv32][31:31], #memory_int[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_10][0bv32][30:23], #memory_int[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_10][0bv32][22:0]) == ~x) && #memory_int[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_10][0bv32] == ~bvand~32(#memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32], 2147483648bv32)) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12 : bv32, v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_10 : bv32 :: (~fp~32(#memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32][31:31], #memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32][30:23], #memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32][22:0]) == ~Pluszero~32() && ~res~0 == ~fp~32(#memory_int[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_10][0bv32][31:31], #memory_int[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_10][0bv32][30:23], #memory_int[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_10][0bv32][22:0])) && #memory_int[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_10][0bv32] == ~bvand~32(#memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32], 2147483648bv32)) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_subst_1 : bv32 :: ~fp~32(v_subst_1[31:31], v_subst_1[30:23], v_subst_1[22:0]) == ~Pluszero~32() && ~bvashr~32(~bvand~32(v_subst_1, 2139095040bv32), 23bv32) == ~bvadd~32(~exponent_less_127~0, 127bv32)) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12 : bv32 :: ~signbit~0 == ~bvand~32(#memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32], 2147483648bv32) && ~fp~32(#memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32][31:31], #memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32][30:23], #memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32][22:0]) == ~Pluszero~32()) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~Pluszero~32 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12 : bv32 :: #memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32] == ~w~0 && ~fp~32(#memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32][31:31], #memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32][30:23], #memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32][22:0]) == ~Pluszero~32()) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~Pluszero~32 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 69]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.0s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 70 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 70 mSDsluCounter, 157 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 95 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 115 IncrementalHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 62 mSDtfsCounter, 115 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 27, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 7 NumberOfFragments, 263 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 131 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 49 ConstructedInterpolants, 18 QuantifiedInterpolants, 742 SizeOfPredicates, 29 NumberOfNonLiveVariables, 186 ConjunctsInSsa, 51 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 48]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2023-11-19 05:01:36,910 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7f64d8-0991-4242-a43a-3a7f8cb297e1/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE